From: Mathieu Desnoyers Date: Thu, 9 Dec 2010 20:54:13 +0000 (-0500) Subject: Move old probes to discard/ X-Git-Tag: v2.0-pre1~199 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=85a015aed81ea015b16c766593ac988a7e7c384e;p=lttng-modules.git Move old probes to discard/ Signed-off-by: Mathieu Desnoyers --- diff --git a/discard/probes/Makefile b/discard/probes/Makefile new file mode 100644 index 00000000..d8f1c403 --- /dev/null +++ b/discard/probes/Makefile @@ -0,0 +1,47 @@ +# LTTng tracing probes + +ifdef CONFIG_FTRACE +CFLAGS_REMOVE_kernel-trace.o = -pg +CFLAGS_REMOVE_mm-trace.o = -pg +CFLAGS_REMOVE_fs-trace.o = -pg +CFLAGS_REMOVE_ipc-trace.o = -pg +CFLAGS_REMOVE_lockdep-trace.o = -pg +CFLAGS_REMOVE_rcu-trace.o = -pg +CFLAGS_REMOVE_syscall-trace.o = -pg +CFLAGS_REMOVE_trap-trace.o = -pg +CFLAGS_REMOVE_pm-trace.o = -pg +endif + +obj-m += kernel-trace.o mm-trace.o fs-trace.o ipc-trace.o lockdep-trace.o \ + rcu-trace.o syscall-trace.o trap-trace.o pm-trace.o + +ifeq ($(CONFIG_NET),y) +ifdef CONFIG_FTRACE +CFLAGS_REMOVE_net-trace.o = -pg +CFLAGS_REMOVE_net-extended-trace.o = -pg +endif +obj-m += net-trace.o net-extended-trace.o +endif + +ifdef CONFIG_JBD2 +ifdef CONFIG_FTRACE +CFLAGS_REMOVE_jbd2-trace.o = -pg +endif +obj-m += jbd2-trace.o +endif + +#ifdef CONFIG_EXT4_FS +#ifdef CONFIG_FTRACE +#CFLAGS_REMOVE_ext4-trace.o = -pg +#endif +#obj-$(CONFIG_LTT_TRACEPROBES) += ext4-trace.o +#endif + +ifdef CONFIG_BLOCK +ifdef CONFIG_FTRACE +CFLAGS_REMOVE_block-trace.o = -pg +endif +obj-m += block-trace.o +endif + + diff --git a/discard/probes/block-trace.c b/discard/probes/block-trace.c new file mode 100644 index 00000000..51ae2cdd --- /dev/null +++ b/discard/probes/block-trace.c @@ -0,0 +1,309 @@ +/* + * ltt/probes/block-trace.c + * + * block layer tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include + +#include + +/* + * Add rq cmd as a sequence. Needs new type. (size + binary blob) + */ + +void probe_block_rq_abort(void *data, struct request_queue *q, struct request *rq) +{ + int rw = rq->cmd_flags & 0x03; + + if (blk_discard_rq(rq)) + rw |= (1 << BIO_RW_DISCARD); + + if (blk_pc_request(rq)) { + trace_mark_tp(block, rq_abort_pc, block_rq_abort, + probe_block_rq_abort, + "data_len %u rw %d errors %d", + blk_rq_bytes(rq), rw, rq->errors); + } else { + /* + * FIXME Using a simple trace_mark for the second event + * possibility because tracepoints do not support multiple + * connections to the same probe yet. They should have some + * refcounting. Need to enable both rq_abort_pc and rq_abort_fs + * markers to have the rq_abort_fs marker enabled. + */ + trace_mark(block, rq_abort_fs, + "hard_sector %llu " + "rw %d errors %d", (unsigned long long)blk_rq_pos(rq), + rw, rq->errors); + } +} + +void probe_block_rq_insert(void *data, struct request_queue *q, struct request *rq) +{ + int rw = rq->cmd_flags & 0x03; + + if (blk_discard_rq(rq)) + rw |= (1 << BIO_RW_DISCARD); + + if (blk_pc_request(rq)) { + trace_mark_tp(block, rq_insert_pc, block_rq_insert, + probe_block_rq_insert, + "data_len %u rw %d errors %d", + blk_rq_bytes(rq), rw, rq->errors); + } else { + /* + * FIXME Using a simple trace_mark for the second event + * possibility because tracepoints do not support multiple + * connections to the same probe yet. They should have some + * refcounting. Need to enable both rq_insert_pc and + * rq_insert_fs markers to have the rq_insert_fs marker enabled. + */ + trace_mark(block, rq_insert_fs, + "hard_sector %llu " + "rw %d errors %d", (unsigned long long)blk_rq_pos(rq), + rw, rq->errors); + } +} + +void probe_block_rq_issue(void *data, struct request_queue *q, struct request *rq) +{ + int rw = rq->cmd_flags & 0x03; + + if (blk_discard_rq(rq)) + rw |= (1 << BIO_RW_DISCARD); + + if (blk_pc_request(rq)) { + trace_mark_tp(block, rq_issue_pc, block_rq_issue, + probe_block_rq_issue, + "data_len %u rw %d errors %d", + blk_rq_bytes(rq), rw, rq->errors); + } else { + /* + * FIXME Using a simple trace_mark for the second event + * possibility because tracepoints do not support multiple + * connections to the same probe yet. They should have some + * refcounting. Need to enable both rq_issue_pc and rq_issue_fs + * markers to have the rq_issue_fs marker enabled. + */ + trace_mark(block, rq_issue_fs, + "hard_sector %llu " + "rw %d errors %d", (unsigned long long)blk_rq_pos(rq), + rw, rq->errors); + } +} + +void probe_block_rq_requeue(void *data, struct request_queue *q, struct request *rq) +{ + int rw = rq->cmd_flags & 0x03; + + if (blk_discard_rq(rq)) + rw |= (1 << BIO_RW_DISCARD); + + if (blk_pc_request(rq)) { + trace_mark_tp(block, rq_requeue_pc, block_rq_requeue, + probe_block_rq_requeue, + "data_len %u rw %d errors %d", + blk_rq_bytes(rq), rw, rq->errors); + } else { + /* + * FIXME Using a simple trace_mark for the second event + * possibility because tracepoints do not support multiple + * connections to the same probe yet. They should have some + * refcounting. Need to enable both rq_requeue_pc and + * rq_requeue_fs markers to have the rq_requeue_fs marker + * enabled. + */ + trace_mark(block, rq_requeue_fs, + "hard_sector %llu " + "rw %d errors %d", (unsigned long long)blk_rq_pos(rq), + rw, rq->errors); + } +} + +void probe_block_rq_complete(void *data, struct request_queue *q, struct request *rq) +{ + int rw = rq->cmd_flags & 0x03; + + if (blk_discard_rq(rq)) + rw |= (1 << BIO_RW_DISCARD); + + if (blk_pc_request(rq)) { + trace_mark_tp(block, rq_complete_pc, block_rq_complete, + probe_block_rq_complete, + "data_len %u rw %d errors %d", + blk_rq_bytes(rq), rw, rq->errors); + } else { + /* + * FIXME Using a simple trace_mark for the second event + * possibility because tracepoints do not support multiple + * connections to the same probe yet. They should have some + * refcounting. Need to enable both rq_complete_pc and + * rq_complete_fs markers to have the rq_complete_fs marker + * enabled. + */ + trace_mark(block, rq_complete_fs, + "hard_sector %llu " + "rw %d errors %d", (unsigned long long)blk_rq_pos(rq), + rw, rq->errors); + } +} + +void probe_block_bio_bounce(void *data, struct request_queue *q, struct bio *bio) +{ + trace_mark_tp(block, bio_bounce, block_bio_bounce, + probe_block_bio_bounce, + "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," + "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " + "not_uptodate #1u%d", + (unsigned long long)bio->bi_sector, bio->bi_size, + bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); +} + +void probe_block_bio_complete(void *data, struct request_queue *q, struct bio *bio) +{ + trace_mark_tp(block, bio_complete, block_bio_complete, + probe_block_bio_complete, + "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," + "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " + "not_uptodate #1u%d", + (unsigned long long)bio->bi_sector, bio->bi_size, + bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); +} + +void probe_block_bio_backmerge(void *data, struct request_queue *q, struct bio *bio) +{ + trace_mark_tp(block, bio_backmerge, block_bio_backmerge, + probe_block_bio_backmerge, + "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," + "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " + "not_uptodate #1u%d", + (unsigned long long)bio->bi_sector, bio->bi_size, + bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); +} + +void probe_block_bio_frontmerge(void *data, struct request_queue *q, struct bio *bio) +{ + trace_mark_tp(block, bio_frontmerge, block_bio_frontmerge, + probe_block_bio_frontmerge, + "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," + "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " + "not_uptodate #1u%d", + (unsigned long long)bio->bi_sector, bio->bi_size, + bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); +} + +void probe_block_bio_queue(void *data, struct request_queue *q, struct bio *bio) +{ + trace_mark_tp(block, bio_queue, block_bio_queue, + probe_block_bio_queue, + "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," + "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " + "not_uptodate #1u%d", + (unsigned long long)bio->bi_sector, bio->bi_size, + bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); +} + +void probe_block_getrq(void *data, struct request_queue *q, struct bio *bio, int rw) +{ + if (bio) { + trace_mark_tp(block, getrq_bio, block_getrq, + probe_block_getrq, + "sector %llu size %u " + "rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," + "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " + "not_uptodate #1u%d", + (unsigned long long)bio->bi_sector, bio->bi_size, + bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); + } else { + /* + * FIXME Using a simple trace_mark for the second event + * possibility because tracepoints do not support multiple + * connections to the same probe yet. They should have some + * refcounting. Need to enable both getrq_bio and getrq markers + * to have the getrq marker enabled. + */ + trace_mark(block, getrq, "rw %d", rw); + } +} + +void probe_block_sleeprq(void *data, struct request_queue *q, struct bio *bio, int rw) +{ + if (bio) { + trace_mark_tp(block, sleeprq_bio, block_sleeprq, + probe_block_sleeprq, + "sector %llu size %u " + "rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," + "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " + "not_uptodate #1u%d", + (unsigned long long)bio->bi_sector, bio->bi_size, + bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); + } else { + /* + * FIXME Using a simple trace_mark for the second event + * possibility because tracepoints do not support multiple + * connections to the same probe yet. They should have some + * refcounting. Need to enable both sleeprq_bio and sleeprq + * markers to have the sleeprq marker enabled. + */ + trace_mark(block, sleeprq, "rw %d", rw); + } +} + +void probe_block_plug(void *data, struct request_queue *q) +{ + trace_mark_tp(block, plug, block_plug, probe_block_plug, + MARK_NOARGS); +} + +void probe_block_unplug_io(void *data, struct request_queue *q) +{ + unsigned int pdu = q->rq.count[READ] + q->rq.count[WRITE]; + + trace_mark_tp(block, unplug_io, block_unplug_io, probe_block_unplug_io, + "pdu %u", pdu); +} + +void probe_block_unplug_timer(void *data, struct request_queue *q) +{ + unsigned int pdu = q->rq.count[READ] + q->rq.count[WRITE]; + + trace_mark_tp(block, unplug_timer, block_unplug_timer, + probe_block_unplug_timer, + "pdu %u", pdu); +} + +void probe_block_split(void *data, struct request_queue *q, struct bio *bio, + unsigned int pdu) +{ + trace_mark_tp(block, split, block_split, + probe_block_split, + "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," + "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " + "not_uptodate #1u%d pdu %u", + (unsigned long long)bio->bi_sector, bio->bi_size, + bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE), pdu); +} + +void probe_block_remap(void *data, struct request_queue *q, struct bio *bio, + dev_t dev, sector_t from) +{ + trace_mark_tp(block, remap, block_remap, + probe_block_remap, + "device_from %lu sector_from %llu device_to %lu " + "size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," + "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " + "not_uptodate #1u%d", + (unsigned long)bio->bi_bdev->bd_dev, + (unsigned long long)from, + (unsigned long)dev, + bio->bi_size, bio->bi_rw, + !bio_flagged(bio, BIO_UPTODATE)); +} + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("Block Tracepoint Probes"); diff --git a/discard/probes/ext4-trace.c b/discard/probes/ext4-trace.c new file mode 100644 index 00000000..83683e70 --- /dev/null +++ b/discard/probes/ext4-trace.c @@ -0,0 +1,611 @@ +/* + * ltt/probes/ext4-trace.c + * + * ext4 tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include +#include +#include +#include +#include + +#include "../ltt-tracer.h" +#include "../../fs/ext4/mballoc.h" + +static struct dentry *ext4_filter_dentry, *ext4_filter_dev_dentry, + *ext4_filter_inode_dentry; +static DEFINE_MUTEX(ext4_filter_mutex); +/* Make sure we don't race between module exit and file write */ +static int module_exits; + +struct rcu_dev_filter { + struct rcu_head rcu; + char devname[NAME_MAX]; +}; + +static struct rcu_dev_filter *dev_filter; +/* ~0UL inode_filter enables all inodes */ +static unsigned long inode_filter = ~0UL; + +/* + * Probes are executed in rcu_sched read-side critical section. + */ + +static int do_dev_filter(const char *dev) +{ + struct rcu_dev_filter *ldev_filter = rcu_dereference(dev_filter); + + if (unlikely(ldev_filter)) + if (unlikely(strcmp(ldev_filter->devname, dev))) + return 0; + return 1; +} + +static int do_inode_filter(unsigned long ino) +{ + if (unlikely(inode_filter != ~0UL)) + if (unlikely(inode_filter != ino)) + return 0; + return 1; +} + +/* + * Logical AND between dev and inode filter. + */ +static int do_filter(const char *dev, unsigned long ino) +{ + if (unlikely(!do_dev_filter(dev))) + return 0; + if (unlikely(!do_inode_filter(ino))) + return 0; + return 1; +} + + +void probe_ext4_free_inode(void *data, struct inode *inode) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) + return; + trace_mark_tp(ext4, free_inode, ext4_free_inode, + probe_ext4_free_inode, + "dev %s ino %lu mode %d uid %lu gid %lu blocks %llu", + inode->i_sb->s_id, inode->i_ino, inode->i_mode, + (unsigned long) inode->i_uid, (unsigned long) inode->i_gid, + (unsigned long long) inode->i_blocks); +} + +void probe_ext4_request_inode(void *data, struct inode *dir, int mode) +{ + if (unlikely(!do_filter(dir->i_sb->s_id, dir->i_ino))) + return; + trace_mark_tp(ext4, request_inode, ext4_request_inode, + probe_ext4_request_inode, + "dev %s dir %lu mode %d", + dir->i_sb->s_id, dir->i_ino, mode); +} + +void probe_ext4_allocate_inode(void *data, struct inode *inode, struct inode *dir, int mode) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino) + && !do_filter(dir->i_sb->s_id, dir->i_ino))) + return; + trace_mark_tp(ext4, allocate_inode, ext4_allocate_inode, + probe_ext4_allocate_inode, + "dev %s ino %lu dir %lu mode %d", + dir->i_sb->s_id, inode->i_ino, dir->i_ino, mode); +} + +void probe_ext4_write_begin(void *data, struct inode *inode, loff_t pos, unsigned int len, + unsigned int flags) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) + return; + trace_mark_tp(ext4, write_begin, ext4_write_begin, + probe_ext4_write_begin, + "dev %s ino %lu pos %llu len %u flags %u", + inode->i_sb->s_id, inode->i_ino, + (unsigned long long) pos, len, flags); +} + +void probe_ext4_ordered_write_end(void *data, struct inode *inode, loff_t pos, + unsigned int len, unsigned int copied) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) + return; + trace_mark_tp(ext4, ordered_write_end, ext4_ordered_write_end, + probe_ext4_ordered_write_end, + "dev %s ino %lu pos %llu len %u copied %u", + inode->i_sb->s_id, inode->i_ino, + (unsigned long long) pos, len, copied); +} + +void probe_ext4_writeback_write_end(void *data, struct inode *inode, loff_t pos, + unsigned int len, unsigned int copied) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) + return; + trace_mark_tp(ext4, writeback_write_end, ext4_writeback_write_end, + probe_ext4_writeback_write_end, + "dev %s ino %lu pos %llu len %u copied %u", + inode->i_sb->s_id, inode->i_ino, + (unsigned long long) pos, len, copied); +} + +void probe_ext4_journalled_write_end(void *data, struct inode *inode, loff_t pos, + unsigned int len, unsigned int copied) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) + return; + trace_mark_tp(ext4, journalled_write_end, ext4_journalled_write_end, + probe_ext4_journalled_write_end, + "dev %s ino %lu pos %llu len %u copied %u", + inode->i_sb->s_id, inode->i_ino, + (unsigned long long) pos, len, copied); +} + +/* + * note : wbc_flags will have to be decoded by userspace. + * #1x uses a single byte in the trace. Limits to 8 bits. + */ +void probe_ext4_da_writepages(void *data, struct inode *inode, + struct writeback_control *wbc) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) + return; + trace_mark_tp(ext4, da_writepages, ext4_da_writepages, + probe_ext4_da_writepages, + "dev %s ino %lu nr_to_write %ld " + "pages_skipped %ld range_start %llu range_end %llu " + "wbc_flags(nonblocking,for_kupdate," + "for_reclaim,range_cyclic) #1x%u", + inode->i_sb->s_id, inode->i_ino, wbc->nr_to_write, + wbc->pages_skipped, + (unsigned long long) wbc->range_start, + (unsigned long long) wbc->range_end, + (wbc->nonblocking << 3) + | (wbc->for_kupdate << 2) + | (wbc->for_reclaim << 1) + | wbc->range_cyclic); +} + +/* + * note : wbc_flags will have to be decoded by userspace. + * #1x uses a single byte in the trace. Limits to 8 bits. + */ +void probe_ext4_da_writepages_result(void *data, struct inode *inode, + struct writeback_control *wbc, + int ret, int pages_written) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) + return; + trace_mark_tp(ext4, da_writepages_result, ext4_da_writepages_result, + probe_ext4_da_writepages_result, + "dev %s ino %lu ret %d pages_written %d " + "pages_skipped %ld " + "wbc_flags(encountered_congestion," + "more_io,no_nrwrite_index_update) #1x%u", + inode->i_sb->s_id, inode->i_ino, ret, pages_written, + wbc->pages_skipped, + (wbc->encountered_congestion << 2) + | (wbc->more_io << 1) + | wbc->no_nrwrite_index_update); +} + +void probe_ext4_da_write_begin(void *data, struct inode *inode, loff_t pos, + unsigned int len, unsigned int flags) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) + return; + trace_mark_tp(ext4, da_write_begin, ext4_da_write_begin, + probe_ext4_da_write_begin, + "dev %s ino %lu pos %llu len %u flags %u", + inode->i_sb->s_id, inode->i_ino, + (unsigned long long) pos, len, flags); +} + +void probe_ext4_da_write_end(void *data, struct inode *inode, loff_t pos, + unsigned int len, unsigned int copied) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) + return; + trace_mark_tp(ext4, da_write_end, ext4_da_write_end, + probe_ext4_da_write_end, + "dev %s ino %lu pos %llu len %u copied %u", + inode->i_sb->s_id, inode->i_ino, + (unsigned long long) pos, len, copied); +} + +void probe_ext4_discard_blocks(void *data, struct super_block *sb, unsigned long long blk, + unsigned long long count) +{ + if (unlikely(!do_dev_filter(sb->s_id))) + return; + trace_mark_tp(ext4, discard_blocks, ext4_discard_blocks, + probe_ext4_discard_blocks, + "dev %s blk %llu count %llu", + sb->s_id, blk, count); +} + +void probe_ext4_mb_new_inode_pa(void *data, struct ext4_allocation_context *ac, + struct ext4_prealloc_space *pa) +{ + if (unlikely(!do_filter(ac->ac_sb->s_id, ac->ac_inode->i_ino))) + return; + trace_mark_tp(ext4, mb_new_inode_pa, ext4_mb_new_inode_pa, + probe_ext4_mb_new_inode_pa, + "dev %s ino %lu pstart %llu len %u lstart %u", + ac->ac_sb->s_id, ac->ac_inode->i_ino, pa->pa_pstart, + pa->pa_len, pa->pa_lstart); +} + +void probe_ext4_mb_new_group_pa(void *data, struct ext4_allocation_context *ac, + struct ext4_prealloc_space *pa) +{ + if (unlikely(!do_dev_filter(ac->ac_sb->s_id))) + return; + trace_mark_tp(ext4, mb_new_group_pa, ext4_mb_new_group_pa, + probe_ext4_mb_new_group_pa, + "dev %s pstart %llu len %u lstart %u", + ac->ac_sb->s_id, pa->pa_pstart, + pa->pa_len, pa->pa_lstart); +} + +void probe_ext4_mb_release_inode_pa(void *data, struct ext4_allocation_context *ac, + struct ext4_prealloc_space *pa, + unsigned long long block, + unsigned int count) +{ + if (unlikely(!do_filter(ac->ac_sb->s_id, ac->ac_inode->i_ino))) + return; + trace_mark_tp(ext4, mb_release_inode_pa, ext4_mb_release_inode_pa, + probe_ext4_mb_release_inode_pa, + "dev %s ino %lu block %llu count %u", + ac->ac_sb->s_id, pa->pa_inode->i_ino, block, count); +} + +void probe_ext4_mb_release_group_pa(void *data, struct ext4_allocation_context *ac, + struct ext4_prealloc_space *pa) +{ + if (unlikely(!do_dev_filter(ac->ac_sb->s_id))) + return; + trace_mark_tp(ext4, mb_release_group_pa, ext4_mb_release_group_pa, + probe_ext4_mb_release_group_pa, + "dev %s pstart %llu len %d", + ac->ac_sb->s_id, pa->pa_pstart, pa->pa_len); +} + +void probe_ext4_discard_preallocations(void *data, struct inode *inode) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) + return; + trace_mark_tp(ext4, discard_preallocations, + ext4_discard_preallocations, + probe_ext4_discard_preallocations, + "dev %s ino %lu", + inode->i_sb->s_id, inode->i_ino); +} + +void probe_ext4_mb_discard_preallocations(void *data, struct super_block *sb, int needed) +{ + if (unlikely(!do_dev_filter(sb->s_id))) + return; + trace_mark_tp(ext4, mb_discard_preallocations, + ext4_mb_discard_preallocations, + probe_ext4_mb_discard_preallocations, + "dev %s needed %d", + sb->s_id, needed); +} + +void probe_ext4_request_blocks(void *data, struct ext4_allocation_request *ar) +{ + if (ar->inode) { + if (unlikely(!do_filter(ar->inode->i_sb->s_id, + ar->inode->i_ino))) + return; + } else { + if (unlikely(!do_dev_filter(ar->inode->i_sb->s_id))) + return; + } + trace_mark_tp(ext4, request_blocks, ext4_request_blocks, + probe_ext4_request_blocks, + "dev %s flags %u len %u ino %lu " + "lblk %llu goal %llu lleft %llu lright %llu " + "pleft %llu pright %llu", + ar->inode->i_sb->s_id, ar->flags, ar->len, + ar->inode ? ar->inode->i_ino : 0, + (unsigned long long) ar->logical, + (unsigned long long) ar->goal, + (unsigned long long) ar->lleft, + (unsigned long long) ar->lright, + (unsigned long long) ar->pleft, + (unsigned long long) ar->pright); +} + +void probe_ext4_allocate_blocks(void *data, struct ext4_allocation_request *ar, + unsigned long long block) +{ + if (ar->inode) { + if (unlikely(!do_filter(ar->inode->i_sb->s_id, + ar->inode->i_ino))) + return; + } else { + if (unlikely(!do_dev_filter(ar->inode->i_sb->s_id))) + return; + } + trace_mark_tp(ext4, allocate_blocks, ext4_allocate_blocks, + probe_ext4_allocate_blocks, + "dev %s block %llu flags %u len %u ino %lu " + "logical %llu goal %llu lleft %llu lright %llu " + "pleft %llu pright %llu", + ar->inode->i_sb->s_id, (unsigned long long) block, + ar->flags, ar->len, ar->inode ? ar->inode->i_ino : 0, + (unsigned long long) ar->logical, + (unsigned long long) ar->goal, + (unsigned long long) ar->lleft, + (unsigned long long) ar->lright, + (unsigned long long) ar->pleft, + (unsigned long long) ar->pright); +} + +void probe_ext4_free_blocks(void *data, struct inode *inode, __u64 block, + unsigned long count, int metadata) +{ + if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) + return; + trace_mark_tp(ext4, free_blocks, ext4_free_blocks, + probe_ext4_free_blocks, + "dev %s block %llu count %lu metadata %d ino %lu", + inode->i_sb->s_id, (unsigned long long)block, + count, metadata, inode->i_ino); +} + +void probe_ext4_sync_file(void *data, struct file *file, struct dentry *dentry, + int datasync) +{ + if (unlikely(!do_dev_filter(dentry->d_inode->i_sb->s_id))) + return; + if (unlikely(!do_inode_filter(dentry->d_inode->i_ino) + && !do_inode_filter(dentry->d_parent->d_inode->i_ino))) + return; + trace_mark_tp(ext4, sync_file, ext4_sync_file, + probe_ext4_sync_file, + "dev %s datasync %d ino %ld parent %ld", + dentry->d_inode->i_sb->s_id, datasync, dentry->d_inode->i_ino, + dentry->d_parent->d_inode->i_ino); +} + +void probe_ext4_sync_fs(void *data, struct super_block *sb, int wait) +{ + if (unlikely(!do_dev_filter(sb->s_id))) + return; + trace_mark_tp(ext4, sync_fs, ext4_sync_fs, + probe_ext4_sync_fs, + "dev %s wait %d", + sb->s_id, wait); +} + +static void free_dev_filter(struct rcu_head *head) +{ + kfree(container_of(head, struct rcu_dev_filter, rcu)); +} + +static ssize_t dev_filter_op_write(struct file *file, + const char __user *user_buf, size_t count, loff_t *ppos) +{ + int err = 0; + char buf[NAME_MAX]; + int buf_size; + char name[NAME_MAX]; + struct rcu_dev_filter *new, *old; + + mutex_lock(&ext4_filter_mutex); + if (module_exits) { + err = -EPERM; + goto error; + } + buf_size = min(count, sizeof(buf) - 1); + err = copy_from_user(buf, user_buf, buf_size); + if (err) + goto error; + buf[buf_size] = 0; + + if (sscanf(buf, "%s", name) != 1) { + err = -EPERM; + goto error; + } + + old = dev_filter; + + /* Empty string or * means all active */ + if (name[0] == '\0' || (name[0] == '*' && name[1] == '\0')) { + new = NULL; + } else { + new = kmalloc(sizeof(*new), GFP_KERNEL); + strcpy(new->devname, name); + } + + rcu_assign_pointer(dev_filter, new); + if (old) + call_rcu_sched(&old->rcu, free_dev_filter); + + mutex_unlock(&ext4_filter_mutex); + return count; + +error: + mutex_unlock(&ext4_filter_mutex); + return err; +} + +static ssize_t dev_filter_op_read(struct file *filp, char __user *buffer, + size_t count, loff_t *ppos) +{ + ssize_t bcount; + const char *devname; + + mutex_lock(&ext4_filter_mutex); + if (!dev_filter) + devname = "*"; + else + devname = dev_filter->devname; + bcount = simple_read_from_buffer(buffer, count, ppos, + devname, strlen(devname)); + mutex_unlock(&ext4_filter_mutex); + return bcount; +} + +static struct file_operations ext4_dev_file_operations = { + .write = dev_filter_op_write, + .read = dev_filter_op_read, +}; + +static ssize_t inode_filter_op_write(struct file *file, + const char __user *user_buf, size_t count, loff_t *ppos) +{ + int err = 0; + char buf[NAME_MAX]; + int buf_size; + char name[NAME_MAX]; + unsigned long inode_num; + + mutex_lock(&ext4_filter_mutex); + if (module_exits) { + err = -EPERM; + goto error; + } + buf_size = min(count, sizeof(buf) - 1); + err = copy_from_user(buf, user_buf, buf_size); + if (err) + goto error; + buf[buf_size] = 0; + + if (sscanf(buf, "%s", name) != 1) { + err = -EPERM; + goto error; + } + + /* Empty string or * means all active */ + if (name[0] == '\0' || (name[0] == '*' && name[1] == '\0')) { + inode_filter = ~0UL; + } else { + if (sscanf(buf, "%lu", &inode_num) != 1) { + err = -EPERM; + goto error; + } + inode_filter = inode_num; + } + + mutex_unlock(&ext4_filter_mutex); + return count; + +error: + mutex_unlock(&ext4_filter_mutex); + return err; +} + +static ssize_t inode_filter_op_read(struct file *filp, char __user *buffer, + size_t count, loff_t *ppos) +{ + ssize_t bcount; + char inode_str[NAME_MAX]; + + mutex_lock(&ext4_filter_mutex); + if (inode_filter == ~0UL) + strcpy(inode_str, "*"); + else { + bcount = snprintf(inode_str, sizeof(inode_str), "%lu", + inode_filter); + if (bcount == sizeof(inode_str)) + bcount = -ENOSPC; + if (bcount < 0) + goto end; + } + bcount = simple_read_from_buffer(buffer, count, ppos, + inode_str, strlen(inode_str)); +end: + mutex_unlock(&ext4_filter_mutex); + return bcount; +} + +static struct file_operations ext4_inode_file_operations = { + .write = inode_filter_op_write, + .read = inode_filter_op_read, +}; + +static void release_filter_dev(void) +{ + struct rcu_dev_filter *old; + + mutex_lock(&ext4_filter_mutex); + module_exits = 1; + old = dev_filter; + rcu_assign_pointer(dev_filter, NULL); + if (old) + call_rcu_sched(&old->rcu, free_dev_filter); + mutex_unlock(&ext4_filter_mutex); +} + +static int __init filter_init(void) +{ + struct dentry *filter_root_dentry; + int err = 0; + + filter_root_dentry = get_filter_root(); + if (!filter_root_dentry) { + err = -ENOENT; + goto end; + } + + ext4_filter_dentry = debugfs_create_dir("ext4", filter_root_dentry); + + if (IS_ERR(ext4_filter_dentry) || !ext4_filter_dentry) { + printk(KERN_ERR "Failed to create ext4 filter file\n"); + err = -ENOMEM; + goto end; + } + + ext4_filter_dev_dentry = debugfs_create_file("dev", S_IWUSR, + ext4_filter_dentry, NULL, &ext4_dev_file_operations); + if (IS_ERR(ext4_filter_dev_dentry) || !ext4_filter_dev_dentry) { + printk(KERN_ERR "Failed to create ext4 dev filter file\n"); + err = -ENOMEM; + goto release_filter_dentry; + } + + ext4_filter_inode_dentry = debugfs_create_file("inode", S_IWUSR, + ext4_filter_dentry, NULL, &ext4_inode_file_operations); + if (IS_ERR(ext4_filter_inode_dentry) || !ext4_filter_inode_dentry) { + printk(KERN_ERR "Failed to create ext4 inode filter file\n"); + err = -ENOMEM; + goto release_filter_dev_dentry; + } + + goto end; + +release_filter_dev_dentry: + debugfs_remove(ext4_filter_dev_dentry); +release_filter_dentry: + debugfs_remove(ext4_filter_dentry); + release_filter_dev(); +end: + return err; +} + +static void __exit filter_exit(void) +{ + debugfs_remove(ext4_filter_dev_dentry); + debugfs_remove(ext4_filter_inode_dentry); + debugfs_remove(ext4_filter_dentry); + release_filter_dev(); +} + +module_init(filter_init); +module_exit(filter_exit); + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("ext4 Tracepoint Probes"); diff --git a/discard/probes/fs-trace.c b/discard/probes/fs-trace.c new file mode 100644 index 00000000..bca28275 --- /dev/null +++ b/discard/probes/fs-trace.c @@ -0,0 +1,158 @@ +/* + * ltt/probes/fs-trace.c + * + * FS tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include +#include + +#include "../ltt-type-serializer.h" + +void probe_fs_buffer_wait_start(void *_data, struct buffer_head *bh) +{ + trace_mark_tp(fs, buffer_wait_start, fs_buffer_wait_start, + probe_fs_buffer_wait_start, "bh %p", bh); +} + +void probe_fs_buffer_wait_end(void *_data, struct buffer_head *bh) +{ + trace_mark_tp(fs, buffer_wait_end, fs_buffer_wait_end, + probe_fs_buffer_wait_end, "bh %p", bh); +} + +void probe_fs_exec(void *_data, char *filename) +{ + trace_mark_tp(fs, exec, fs_exec, probe_fs_exec, "filename %s", + filename); +} + +void probe_fs_ioctl(void *_data, unsigned int fd, unsigned int cmd, unsigned long arg) +{ + trace_mark_tp(fs, ioctl, fs_ioctl, probe_fs_ioctl, + "fd %u cmd %u arg %lu", fd, cmd, arg); +} + +void probe_fs_open(void *_data, int fd, char *filename) +{ + trace_mark_tp(fs, open, fs_open, probe_fs_open, + "fd %d filename %s", fd, filename); +} + +void probe_fs_close(void *_data, unsigned int fd) +{ + trace_mark_tp(fs, close, fs_close, probe_fs_close, "fd %u", fd); +} + +void probe_fs_lseek(void *_data, unsigned int fd, long offset, unsigned int origin) +{ + trace_mark_tp(fs, lseek, fs_lseek, probe_fs_lseek, + "fd %u offset %ld origin %u", fd, offset, origin); +} + +void probe_fs_llseek(void *_data, unsigned int fd, loff_t offset, unsigned int origin) +{ + trace_mark_tp(fs, llseek, fs_llseek, probe_fs_llseek, + "fd %u offset %lld origin %u", fd, + (long long)offset, origin); +} + +void probe_fs_read(void *_data, unsigned int fd, char __user *buf, size_t count, + ssize_t ret); + +DEFINE_MARKER_TP(fs, read, fs_read, probe_fs_read, + "count %zu fd %u"); + +notrace void probe_fs_read(void *_data, unsigned int fd, char __user *buf, size_t count, + ssize_t ret) +{ + struct marker *marker; + struct serialize_sizet_int data; + + data.f1 = count; + data.f2 = fd; + + marker = &GET_MARKER(fs, read); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(size_t)); +} + +void probe_fs_write(void *_data, unsigned int fd, char __user *buf, size_t count, + ssize_t ret); + +DEFINE_MARKER_TP(fs, write, fs_write, probe_fs_write, + "count %zu fd %u"); + +notrace void probe_fs_write(void *_data, unsigned int fd, char __user *buf, size_t count, + ssize_t ret) +{ + struct marker *marker; + struct serialize_sizet_int data; + + data.f1 = count; + data.f2 = fd; + + marker = &GET_MARKER(fs, write); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(size_t)); +} + +void probe_fs_pread64(void *_data, unsigned int fd, char __user *buf, size_t count, + loff_t pos, ssize_t ret) +{ + trace_mark_tp(fs, pread64, fs_pread64, probe_fs_pread64, + "fd %u count %zu pos %llu", + fd, count, (unsigned long long)pos); +} + +void probe_fs_pwrite64(void *_data, unsigned int fd, const char __user *buf, + size_t count, loff_t pos, ssize_t ret) +{ + trace_mark_tp(fs, pwrite64, fs_pwrite64, probe_fs_pwrite64, + "fd %u count %zu pos %llu", + fd, count, (unsigned long long)pos); +} + +void probe_fs_readv(void *_data, unsigned long fd, const struct iovec __user *vec, + unsigned long vlen, ssize_t ret) +{ + trace_mark_tp(fs, readv, fs_readv, probe_fs_readv, + "fd %lu vlen %lu", fd, vlen); +} + +void probe_fs_writev(void *_data, unsigned long fd, const struct iovec __user *vec, + unsigned long vlen, ssize_t ret) +{ + trace_mark_tp(fs, writev, fs_writev, probe_fs_writev, + "fd %lu vlen %lu", fd, vlen); +} + +void probe_fs_select(void *_data, int fd, struct timespec *end_time) +{ + struct timespec tmptime; + + if (end_time) { + tmptime = *end_time; + } else { + tmptime.tv_sec = -1L; + tmptime.tv_nsec = -1L; + } + + trace_mark_tp(fs, select, fs_select, probe_fs_select, + "fd %d end_time_sec %ld end_time_nsec %ld", fd, + tmptime.tv_sec, tmptime.tv_nsec); +} + +void probe_fs_poll(void *_data, int fd) +{ + trace_mark_tp(fs, pollfd, fs_poll, probe_fs_poll, + "fd %d", fd); +} + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("FS Tracepoint Probes"); diff --git a/discard/probes/ipc-trace.c b/discard/probes/ipc-trace.c new file mode 100644 index 00000000..3a095252 --- /dev/null +++ b/discard/probes/ipc-trace.c @@ -0,0 +1,39 @@ +/* + * ltt/probes/ipc-trace.c + * + * IPC tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include + +void probe_ipc_msg_create(void *data, long id, int flags) +{ + trace_mark_tp(ipc, msg_create, ipc_msg_create, probe_ipc_msg_create, + "id %ld flags %d", id, flags); +} + +void probe_ipc_sem_create(void *data, long id, int flags) +{ + trace_mark_tp(ipc, sem_create, ipc_sem_create, probe_ipc_sem_create, + "id %ld flags %d", id, flags); +} + +void probe_ipc_shm_create(void *data, long id, int flags) +{ + trace_mark_tp(ipc, shm_create, ipc_shm_create, probe_ipc_shm_create, + "id %ld flags %d", id, flags); +} + +void probe_ipc_call(void *data, unsigned int call, unsigned int first) +{ + trace_mark_tp(ipc, call, ipc_call, probe_ipc_call, + "call %u first %d", call, first); +} + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("IPC Tracepoint Probes"); diff --git a/discard/probes/jbd2-trace.c b/discard/probes/jbd2-trace.c new file mode 100644 index 00000000..3da32cd4 --- /dev/null +++ b/discard/probes/jbd2-trace.c @@ -0,0 +1,208 @@ +/* + * ltt/probes/jbd2-trace.c + * + * JBD2 tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include +#include +#include +#include + +#include "../ltt-tracer.h" + +static struct dentry *jbd2_filter_dentry, *jbd2_filter_dev_dentry; +static DEFINE_MUTEX(jbd2_filter_mutex); +/* Make sure we don't race between module exit and file write */ +static int module_exits; + +struct rcu_dev_filter { + struct rcu_head rcu; + char devname[NAME_MAX]; +}; + +static struct rcu_dev_filter *dev_filter; + +/* + * Probes are executed in rcu_sched read-side critical section. + */ +static int do_filter(const char *dev) +{ + struct rcu_dev_filter *ldev_filter = rcu_dereference(dev_filter); + + if (unlikely(ldev_filter)) + if (unlikely(strcmp(ldev_filter->devname, dev))) + return 0; + return 1; +} + +void probe_jbd2_checkpoint(void *data, journal_t *journal, int result) +{ + if (unlikely(!do_filter(journal->j_devname))) + return; + trace_mark_tp(jbd2, checkpoint, jbd2_checkpoint, + probe_jbd2_checkpoint, "dev %s need_checkpoint %d", + journal->j_devname, result); +} + +void probe_jbd2_start_commit(void *data, journal_t *journal, + transaction_t *commit_transaction) +{ + if (unlikely(!do_filter(journal->j_devname))) + return; + trace_mark_tp(jbd2, start_commit, jbd2_start_commit, + probe_jbd2_start_commit, "dev %s transaction %d", + journal->j_devname, commit_transaction->t_tid); +} + +void probe_jbd2_end_commit(void *data, journal_t *journal, + transaction_t *commit_transaction) +{ + if (unlikely(!do_filter(journal->j_devname))) + return; + trace_mark_tp(jbd2, end_commit, jbd2_end_commit, + probe_jbd2_end_commit, "dev %s transaction %d head %d", + journal->j_devname, commit_transaction->t_tid, + journal->j_tail_sequence); +} + +static void free_dev_filter(struct rcu_head *head) +{ + kfree(container_of(head, struct rcu_dev_filter, rcu)); +} + +static ssize_t filter_op_write(struct file *file, + const char __user *user_buf, size_t count, loff_t *ppos) +{ + int err = 0; + char buf[NAME_MAX]; + int buf_size; + char name[NAME_MAX]; + struct rcu_dev_filter *new, *old; + + mutex_lock(&jbd2_filter_mutex); + if (module_exits) { + err = -EPERM; + goto error; + } + buf_size = min(count, sizeof(buf) - 1); + err = copy_from_user(buf, user_buf, buf_size); + if (err) + goto error; + buf[buf_size] = 0; + + if (sscanf(buf, "%s", name) != 1) { + err = -EPERM; + goto error; + } + + old = dev_filter; + + /* Empty string or * means all active */ + if (name[0] == '\0' || (name[0] == '*' && name[1] == '\0')) { + new = NULL; + } else { + new = kmalloc(sizeof(*new), GFP_KERNEL); + strcpy(new->devname, name); + } + + rcu_assign_pointer(dev_filter, new); + if (old) + call_rcu_sched(&old->rcu, free_dev_filter); + + mutex_unlock(&jbd2_filter_mutex); + return count; + +error: + mutex_unlock(&jbd2_filter_mutex); + return err; +} + +static ssize_t filter_op_read(struct file *filp, char __user *buffer, + size_t count, loff_t *ppos) +{ + ssize_t bcount; + const char *devname; + + mutex_lock(&jbd2_filter_mutex); + if (!dev_filter) + devname = "*"; + else + devname = dev_filter->devname; + bcount = simple_read_from_buffer(buffer, count, ppos, + devname, strlen(devname)); + mutex_unlock(&jbd2_filter_mutex); + return bcount; +} + +static struct file_operations jbd2_file_operations = { + .write = filter_op_write, + .read = filter_op_read, +}; + +static void release_filter_dev(void) +{ + struct rcu_dev_filter *old; + + mutex_lock(&jbd2_filter_mutex); + module_exits = 1; + old = dev_filter; + rcu_assign_pointer(dev_filter, NULL); + if (old) + call_rcu_sched(&old->rcu, free_dev_filter); + mutex_unlock(&jbd2_filter_mutex); +} + +static int __init filter_init(void) +{ + struct dentry *filter_root_dentry; + int err = 0; + + filter_root_dentry = get_filter_root(); + if (!filter_root_dentry) { + err = -ENOENT; + goto end; + } + + jbd2_filter_dentry = debugfs_create_dir("jbd2", filter_root_dentry); + + if (IS_ERR(jbd2_filter_dentry) || !jbd2_filter_dentry) { + printk(KERN_ERR "Failed to create jbd2 filter file\n"); + err = -ENOMEM; + goto end; + } + + jbd2_filter_dev_dentry = debugfs_create_file("dev", S_IWUSR, + jbd2_filter_dentry, NULL, &jbd2_file_operations); + if (IS_ERR(jbd2_filter_dentry) || !jbd2_filter_dentry) { + printk(KERN_ERR "Failed to create jbd2 filter file\n"); + err = -ENOMEM; + goto release_filter_dentry; + } + + goto end; + +release_filter_dentry: + debugfs_remove(jbd2_filter_dentry); + release_filter_dev(); +end: + return err; +} + +static void __exit filter_exit(void) +{ + debugfs_remove(jbd2_filter_dev_dentry); + debugfs_remove(jbd2_filter_dentry); + release_filter_dev(); +} + +module_init(filter_init); +module_exit(filter_exit); + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("JBD2 Tracepoint Probes"); diff --git a/discard/probes/kernel-trace.c b/discard/probes/kernel-trace.c new file mode 100644 index 00000000..cabe60e1 --- /dev/null +++ b/discard/probes/kernel-trace.c @@ -0,0 +1,581 @@ +/* + * ltt/probes/kernel-trace.c + * + * kernel tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../ltt-tracer.h" +#include "../ltt-type-serializer.h" + +/* + * This should probably be added to s390. + */ +#ifdef CONFIG_S390 +static struct pt_regs *get_irq_regs(void) +{ + return task_pt_regs(current); +} +#endif + +/* + * FIXME : + * currently, the specialized tracepoint probes cannot call into other marker + * probes, such as ftrace enable/disable. Given we want them to be as fast as + * possible, it might not be so bad to lose this flexibility. But that means + * such probes would have to connect to tracepoints on their own. + */ + +/* kernel_irq_entry specialized tracepoint probe */ + +void probe_irq_entry(void *_data, unsigned int id, struct pt_regs *regs, + struct irqaction *action); + +DEFINE_MARKER_TP(kernel, irq_entry, irq_entry, probe_irq_entry, + "ip %lu handler %p irq_id #2u%u kernel_mode #1u%u"); + +notrace void probe_irq_entry(void *_data, unsigned int id, struct pt_regs *regs, + struct irqaction *action) +{ + struct marker *marker; + struct serialize_long_long_short_char data; + + if (unlikely(!regs)) + regs = get_irq_regs(); + if (likely(regs)) { + data.f1 = instruction_pointer(regs); + data.f4 = !user_mode(regs); + } else { + data.f1 = 0UL; + data.f4 = 1; + } + data.f2 = (unsigned long) (action ? action->handler : NULL); + data.f3 = id; + + marker = &GET_MARKER(kernel, irq_entry); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +void probe_irq_next_handler(void *_data, unsigned int id, struct irqaction *action, + irqreturn_t prev_ret); + +DEFINE_MARKER_TP(kernel, irq_next_handler, irq_next_handler, + probe_irq_next_handler, + "handler %p prev_ret #1u%u"); + +notrace void probe_irq_next_handler(void *_data, unsigned int id, struct irqaction *action, + irqreturn_t prev_ret) +{ + struct marker *marker; + struct serialize_long_char data; + + data.f1 = (unsigned long) (action ? action->handler : NULL); + data.f2 = prev_ret; + + marker = &GET_MARKER(kernel, irq_next_handler); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +/* kernel_irq_exit specialized tracepoint probe */ + +void probe_irq_exit(void *_data, irqreturn_t retval); + +DEFINE_MARKER_TP(kernel, irq_exit, irq_exit, probe_irq_exit, + "handled #1u%u"); + +notrace void probe_irq_exit(void *_data, irqreturn_t retval) +{ + struct marker *marker; + unsigned char data; + + data = IRQ_RETVAL(retval); + + marker = &GET_MARKER(kernel, irq_exit); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, sizeof(data), sizeof(data)); +} + +/* kernel_softirq_entry specialized tracepoint probe */ + +void probe_softirq_entry(void *_data, struct softirq_action *h, + struct softirq_action *softirq_vec); + +DEFINE_MARKER_TP(kernel, softirq_entry, softirq_entry, + probe_softirq_entry, "softirq_id #1u%lu"); + +notrace void probe_softirq_entry(void *_data, struct softirq_action *h, + struct softirq_action *softirq_vec) +{ + struct marker *marker; + unsigned char data; + + data = ((unsigned long)h - (unsigned long)softirq_vec) / sizeof(*h); + + marker = &GET_MARKER(kernel, softirq_entry); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, sizeof(data), sizeof(data)); +} + +/* kernel_softirq_exit specialized tracepoint probe */ + +void probe_softirq_exit(void *_data, struct softirq_action *h, + struct softirq_action *softirq_vec); + +DEFINE_MARKER_TP(kernel, softirq_exit, softirq_exit, + probe_softirq_exit, "softirq_id #1u%lu"); + +notrace void probe_softirq_exit(void *_data, struct softirq_action *h, + struct softirq_action *softirq_vec) +{ + struct marker *marker; + unsigned char data; + + data = ((unsigned long)h - (unsigned long)softirq_vec) / sizeof(*h); + + marker = &GET_MARKER(kernel, softirq_exit); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, sizeof(data), sizeof(data)); +} + +/* kernel_softirq_raise specialized tracepoint probe */ + +void probe_softirq_raise(void *_data, unsigned int nr); + +DEFINE_MARKER_TP(kernel, softirq_raise, softirq_raise, + probe_softirq_raise, "softirq_id #1u%u"); + +notrace void probe_softirq_raise(void *_data, unsigned int nr) +{ + struct marker *marker; + unsigned char data; + + data = nr; + + marker = &GET_MARKER(kernel, softirq_raise); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, sizeof(data), sizeof(data)); +} + +/* Standard probes */ +void probe_irq_tasklet_low_entry(void *_data, struct tasklet_struct *t) +{ + trace_mark_tp(kernel, tasklet_low_entry, irq_tasklet_low_entry, + probe_irq_tasklet_low_entry, "func %p data %lu", + t->func, t->data); +} + +void probe_irq_tasklet_low_exit(void *_data, struct tasklet_struct *t) +{ + trace_mark_tp(kernel, tasklet_low_exit, irq_tasklet_low_exit, + probe_irq_tasklet_low_exit, "func %p data %lu", + t->func, t->data); +} + +void probe_irq_tasklet_high_entry(void *_data, struct tasklet_struct *t) +{ + trace_mark_tp(kernel, tasklet_high_entry, irq_tasklet_high_entry, + probe_irq_tasklet_high_entry, "func %p data %lu", + t->func, t->data); +} + +void probe_irq_tasklet_high_exit(void *_data, struct tasklet_struct *t) +{ + trace_mark_tp(kernel, tasklet_high_exit, irq_tasklet_high_exit, + probe_irq_tasklet_high_exit, "func %p data %lu", + t->func, t->data); +} + +void probe_sched_kthread_stop(void *_data, struct task_struct *t) +{ + trace_mark_tp(kernel, kthread_stop, sched_kthread_stop, + probe_sched_kthread_stop, "pid %d", t->pid); +} + +void probe_sched_kthread_stop_ret(void *_data, int ret) +{ + trace_mark_tp(kernel, kthread_stop_ret, sched_kthread_stop_ret, + probe_sched_kthread_stop_ret, "ret %d", ret); +} + +void probe_sched_wait_task(void *_data, struct task_struct *p) +{ + trace_mark_tp(kernel, sched_wait_task, sched_wait_task, + probe_sched_wait_task, "pid %d state #2d%ld", + p->pid, p->state); +} + +/* kernel_sched_try_wakeup specialized tracepoint probe */ + +void probe_sched_wakeup(void *_data, struct task_struct *p, int success); + +DEFINE_MARKER_TP(kernel, sched_try_wakeup, sched_wakeup, + probe_sched_wakeup, "pid %d cpu_id %u state #2d%ld"); + +notrace void probe_sched_wakeup(void *_data, struct task_struct *p, int success) +{ + struct marker *marker; + struct serialize_int_int_short data; + + data.f1 = p->pid; + data.f2 = task_cpu(p); + data.f3 = p->state; + + marker = &GET_MARKER(kernel, sched_try_wakeup); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(int)); +} + +void probe_sched_wakeup_new(void *_data, struct task_struct *p, int success) +{ + trace_mark_tp(kernel, sched_wakeup_new_task, sched_wakeup_new, + probe_sched_wakeup_new, "pid %d state #2d%ld cpu_id %u", + p->pid, p->state, task_cpu(p)); +} + +/* kernel_sched_schedule specialized tracepoint probe */ + +void probe_sched_switch(void *_data, struct task_struct *prev, + struct task_struct *next); + +DEFINE_MARKER_TP(kernel, sched_schedule, sched_switch, probe_sched_switch, + "prev_pid %d next_pid %d prev_state #2d%ld"); + +notrace void probe_sched_switch(void *_data, struct task_struct *prev, + struct task_struct *next) +{ + struct marker *marker; + struct serialize_int_int_short data; + + data.f1 = prev->pid; + data.f2 = next->pid; + data.f3 = prev->state; + + marker = &GET_MARKER(kernel, sched_schedule); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(int)); +} + +void probe_sched_migrate_task(void *_data, struct task_struct *p, int dest_cpu) +{ + trace_mark_tp(kernel, sched_migrate_task, sched_migrate_task, + probe_sched_migrate_task, "pid %d state #2d%ld dest_cpu %d", + p->pid, p->state, dest_cpu); +} + +void probe_sched_signal_send(void *_data, int sig, struct siginfo *info, struct task_struct *t) +{ + trace_mark_tp(kernel, send_signal, signal_generate, + probe_sched_signal_send, "pid %d signal %d", t->pid, sig); +} + +void probe_sched_process_free(void *_data, struct task_struct *p) +{ + trace_mark_tp(kernel, process_free, sched_process_free, + probe_sched_process_free, "pid %d", p->pid); +} + +void probe_sched_process_exit(void *_data, struct task_struct *p) +{ + trace_mark_tp(kernel, process_exit, sched_process_exit, + probe_sched_process_exit, "pid %d", p->pid); +} + +void probe_sched_process_wait(void *_data, struct pid *pid) +{ + trace_mark_tp(kernel, process_wait, sched_process_wait, + probe_sched_process_wait, "pid %d", pid_nr(pid)); +} + +void probe_sched_process_fork(void *_data, struct task_struct *parent, + struct task_struct *child) +{ + trace_mark_tp(kernel, process_fork, sched_process_fork, + probe_sched_process_fork, + "parent_pid %d child_pid %d child_tgid %d", + parent->pid, child->pid, child->tgid); +} + +void probe_sched_kthread_create(void *_data, void *fn, int pid) +{ + trace_mark_tp(kernel, kthread_create, sched_kthread_create, + probe_sched_kthread_create, + "fn %p pid %d", fn, pid); +} + +void probe_timer_itimer_expired(void *_data, struct signal_struct *sig) +{ + trace_mark_tp(kernel, timer_itimer_expired, timer_itimer_expired, + probe_timer_itimer_expired, "pid %d", + pid_nr(sig->leader_pid)); +} + +void probe_timer_itimer_set(void *_data, int which, struct itimerval *value) +{ + trace_mark_tp(kernel, timer_itimer_set, + timer_itimer_set, probe_timer_itimer_set, + "which %d interval_sec %ld interval_usec %ld " + "value_sec %ld value_usec %ld", + which, + value->it_interval.tv_sec, + value->it_interval.tv_usec, + value->it_value.tv_sec, + value->it_value.tv_usec); +} + +/* kernel_timer_set specialized tracepoint probe */ + +void probe_timer_set(void *_data, struct timer_list *timer); + +DEFINE_MARKER_TP(kernel, timer_set, timer_set, probe_timer_set, + "expires %lu function %p data %lu"); + +notrace void probe_timer_set(void *_data, struct timer_list *timer) +{ + struct marker *marker; + struct serialize_long_long_long data; + + data.f1 = timer->expires; + data.f2 = (unsigned long)timer->function; + data.f3 = timer->data; + + marker = &GET_MARKER(kernel, timer_set); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +void probe_timer_update_time(void *_data, struct timespec *_xtime, + struct timespec *_wall_to_monotonic) +{ + trace_mark_tp(kernel, timer_update_time, timer_update_time, + probe_timer_update_time, + "jiffies #8u%llu xtime_sec %ld xtime_nsec %ld " + "walltomonotonic_sec %ld walltomonotonic_nsec %ld", + (unsigned long long)jiffies_64, _xtime->tv_sec, _xtime->tv_nsec, + _wall_to_monotonic->tv_sec, _wall_to_monotonic->tv_nsec); +} + +void probe_timer_timeout(void *_data, struct task_struct *p) +{ + trace_mark_tp(kernel, timer_timeout, timer_timeout, + probe_timer_timeout, "pid %d", p->pid); +} + +void probe_kernel_printk(void *_data, unsigned long retaddr) +{ + trace_mark_tp(kernel, printk, kernel_printk, + probe_kernel_printk, "ip 0x%lX", retaddr); +} + +void probe_kernel_vprintk(void *_data, unsigned long retaddr, char *buf, int len) +{ + if (len > 0) { + unsigned int loglevel; + int mark_len; + char *mark_buf; + char saved_char; + + if (buf[0] == '<' && buf[1] >= '0' && + buf[1] <= '7' && buf[2] == '>') { + loglevel = buf[1] - '0'; + mark_buf = &buf[3]; + mark_len = len - 3; + } else { + loglevel = default_message_loglevel; + mark_buf = buf; + mark_len = len; + } + if (mark_buf[mark_len - 1] == '\n') + mark_len--; + saved_char = mark_buf[mark_len]; + mark_buf[mark_len] = '\0'; + trace_mark_tp(kernel, vprintk, kernel_vprintk, + probe_kernel_vprintk, + "loglevel #1u%u string %s ip 0x%lX", + loglevel, mark_buf, retaddr); + mark_buf[mark_len] = saved_char; + } +} + +#ifdef CONFIG_MODULES +void probe_kernel_module_free(void *_data, struct module *mod) +{ + trace_mark_tp(kernel, module_free, kernel_module_free, + probe_kernel_module_free, "name %s", mod->name); +} + +void probe_kernel_module_load(void *_data, struct module *mod) +{ + trace_mark_tp(kernel, module_load, kernel_module_load, + probe_kernel_module_load, "name %s", mod->name); +} +#endif + +void probe_kernel_panic(void *_data, const char *fmt, va_list args) +{ + char info[64]; + vsnprintf(info, sizeof(info), fmt, args); + trace_mark_tp(kernel, panic, kernel_panic, probe_kernel_panic, + "info %s", info); +} + +void probe_kernel_kernel_kexec(void *_data, struct kimage *image) +{ + trace_mark_tp(kernel, kernel_kexec, kernel_kernel_kexec, + probe_kernel_kernel_kexec, "image %p", image); +} + +void probe_kernel_crash_kexec(void *_data, struct kimage *image, struct pt_regs *regs) +{ + trace_mark_tp(kernel, crash_kexec, kernel_crash_kexec, + probe_kernel_crash_kexec, "image %p ip %p", image, + regs ? (void *)instruction_pointer(regs) : NULL); +} + +/* kernel_page_fault_entry specialized tracepoint probe */ + +void probe_kernel_page_fault_entry(void *_data, struct pt_regs *regs, int trapnr, + struct mm_struct *mm, struct vm_area_struct *vma, + unsigned long address, int write_access); + +DEFINE_MARKER_TP(kernel, page_fault_entry, page_fault_entry, + probe_kernel_page_fault_entry, + "ip #p%lu address #p%lu trap_id #2u%u write_access #1u%u"); + +notrace void probe_kernel_page_fault_entry(void *_data, struct pt_regs *regs, int trapnr, + struct mm_struct *mm, struct vm_area_struct *vma, + unsigned long address, int write_access) +{ + struct marker *marker; + struct serialize_long_long_short_char data; + + if (likely(regs)) + data.f1 = instruction_pointer(regs); + else + data.f1 = 0UL; + data.f2 = address; + data.f3 = (unsigned short)trapnr; + data.f4 = (unsigned char)!!write_access; + + marker = &GET_MARKER(kernel, page_fault_entry); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +/* kernel_page_fault_exit specialized tracepoint probe */ + +void probe_kernel_page_fault_exit(void *_data, int res); + +DEFINE_MARKER_TP(kernel, page_fault_exit, page_fault_exit, + probe_kernel_page_fault_exit, + "res %d"); + +notrace void probe_kernel_page_fault_exit(void *_data, int res) +{ + struct marker *marker; + + marker = &GET_MARKER(kernel, page_fault_exit); + ltt_specialized_trace(marker, marker->single.probe_private, + &res, sizeof(res), sizeof(res)); +} + +/* kernel_page_fault_nosem_entry specialized tracepoint probe */ + +void probe_kernel_page_fault_nosem_entry(void *_data, struct pt_regs *regs, + int trapnr, unsigned long address); + +DEFINE_MARKER_TP(kernel, page_fault_nosem_entry, page_fault_nosem_entry, + probe_kernel_page_fault_nosem_entry, + "ip #p%lu address #p%lu trap_id #2u%u"); + +notrace void probe_kernel_page_fault_nosem_entry(void *_data, struct pt_regs *regs, + int trapnr, unsigned long address) +{ + struct marker *marker; + struct serialize_long_long_short data; + + if (likely(regs)) + data.f1 = instruction_pointer(regs); + else + data.f1 = 0UL; + data.f2 = address; + data.f3 = (unsigned short)trapnr; + + marker = &GET_MARKER(kernel, page_fault_nosem_entry); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +/* kernel_page_fault_nosem_exit specialized tracepoint probe */ + +void probe_kernel_page_fault_nosem_exit(void *_data, int res); + +DEFINE_MARKER_TP(kernel, page_fault_nosem_exit, page_fault_nosem_exit, + probe_kernel_page_fault_nosem_exit, + MARK_NOARGS); + +notrace void probe_kernel_page_fault_nosem_exit(void *_data, int res) +{ + struct marker *marker; + + marker = &GET_MARKER(kernel, page_fault_nosem_exit); + ltt_specialized_trace(marker, marker->single.probe_private, + NULL, 0, 0); +} + +/* kernel_page_fault_get_user_entry specialized tracepoint probe */ + +void probe_kernel_page_fault_get_user_entry(void *_data, struct mm_struct *mm, + struct vm_area_struct *vma, unsigned long address, int write_access); + +DEFINE_MARKER_TP(kernel, page_fault_get_user_entry, page_fault_get_user_entry, + probe_kernel_page_fault_get_user_entry, + "address #p%lu write_access #1u%u"); + +notrace void probe_kernel_page_fault_get_user_entry(void *_data, struct mm_struct *mm, + struct vm_area_struct *vma, unsigned long address, int write_access) +{ + struct marker *marker; + struct serialize_long_char data; + + data.f1 = address; + data.f2 = (unsigned char)!!write_access; + + marker = &GET_MARKER(kernel, page_fault_get_user_entry); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +/* kernel_page_fault_get_user_exit specialized tracepoint probe */ + +void probe_kernel_page_fault_get_user_exit(void *_data, int res); + +DEFINE_MARKER_TP(kernel, page_fault_get_user_exit, page_fault_get_user_exit, + probe_kernel_page_fault_get_user_exit, + "res %d"); + +notrace void probe_kernel_page_fault_get_user_exit(void *_data, int res) +{ + struct marker *marker; + + marker = &GET_MARKER(kernel, page_fault_get_user_exit); + ltt_specialized_trace(marker, marker->single.probe_private, + &res, sizeof(res), sizeof(res)); +} + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("kernel Tracepoint Probes"); diff --git a/discard/probes/lockdep-trace.c b/discard/probes/lockdep-trace.c new file mode 100644 index 00000000..a9a77344 --- /dev/null +++ b/discard/probes/lockdep-trace.c @@ -0,0 +1,60 @@ +/* + * ltt/probes/lockdep-trace.c + * + * lockdep tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include +#include + +void probe_lockdep_hardirqs_on(void *data, unsigned long retaddr) +{ + trace_mark_tp(lockdep, hardirqs_on, lockdep_hardirqs_on, + probe_lockdep_hardirqs_on, "retaddr 0x%lX", retaddr); +} + +void probe_lockdep_hardirqs_off(void *data, unsigned long retaddr) +{ + trace_mark_tp(lockdep, hardirqs_off, lockdep_hardirqs_off, + probe_lockdep_hardirqs_off, "retaddr 0x%lX", retaddr); +} + +void probe_lockdep_softirqs_on(void *data, unsigned long retaddr) +{ + trace_mark_tp(lockdep, softirqs_on, lockdep_softirqs_on, + probe_lockdep_softirqs_on, "retaddr 0x%lX", retaddr); +} + +void probe_lockdep_softirqs_off(void *data, unsigned long retaddr) +{ + trace_mark_tp(lockdep, softirqs_off, lockdep_softirqs_off, + probe_lockdep_softirqs_off, "retaddr 0x%lX", retaddr); +} + +void probe_lockdep_lock_acquire(void *data, unsigned long retaddr, + unsigned int subclass, struct lockdep_map *lock, int trylock, + int read, int hardirqs_off) +{ + trace_mark_tp(lockdep, lock_acquire, lockdep_lock_acquire, + probe_lockdep_lock_acquire, + "retaddr 0x%lX subclass %u lock %p trylock %d read %d " + "hardirqs_off %d", + retaddr, subclass, lock, trylock, read, hardirqs_off); +} + +void probe_lockdep_lock_release(void *data, unsigned long retaddr, + struct lockdep_map *lock, int nested) +{ + trace_mark_tp(lockdep, lock_release, lockdep_lock_release, + probe_lockdep_lock_release, + "retaddr 0x%lX lock %p nested %d", + retaddr, lock, nested); +} + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("lockdep Tracepoint Probes"); diff --git a/discard/probes/mm-trace.c b/discard/probes/mm-trace.c new file mode 100644 index 00000000..935e366c --- /dev/null +++ b/discard/probes/mm-trace.c @@ -0,0 +1,146 @@ +/* + * ltt/probes/mm-trace.c + * + * MM tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "../ltt-type-serializer.h" + +void probe_wait_on_page_start(void *_data, struct page *page, int bit_nr) +{ + trace_mark_tp(mm, wait_on_page_start, wait_on_page_start, + probe_wait_on_page_start, "pfn %lu bit_nr %d", + page_to_pfn(page), bit_nr); +} + +void probe_wait_on_page_end(void *_data, struct page *page, int bit_nr) +{ + trace_mark_tp(mm, wait_on_page_end, wait_on_page_end, + probe_wait_on_page_end, "pfn %lu bit_nr %d", + page_to_pfn(page), bit_nr); +} + +void probe_hugetlb_page_free(void *_data, struct page *page) +{ + trace_mark_tp(mm, huge_page_free, hugetlb_page_free, + probe_hugetlb_page_free, "pfn %lu", page_to_pfn(page)); +} + +void probe_hugetlb_page_alloc(void *_data, struct page *page) +{ + if (page) + trace_mark_tp(mm, huge_page_alloc, hugetlb_page_alloc, + probe_hugetlb_page_alloc, "pfn %lu", page_to_pfn(page)); +} + +/* mm_page_free specialized tracepoint probe */ + +void probe_page_free(void *_data, struct page *page, unsigned int order); + +DEFINE_MARKER_TP(mm, page_free, page_free, probe_page_free, + "pfn %lu order %u"); + +notrace void probe_page_free(void *_data, struct page *page, unsigned int order) +{ + struct marker *marker; + struct serialize_long_int data; + + data.f1 = page_to_pfn(page); + data.f2 = order; + + marker = &GET_MARKER(mm, page_free); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +/* mm_page_alloc specialized tracepoint probe */ + +void probe_page_alloc(void *_data, struct page *page, unsigned int order); + +DEFINE_MARKER_TP(mm, page_alloc, page_alloc, probe_page_alloc, + "pfn %lu order %u"); + +notrace void probe_page_alloc(void *_data, struct page *page, unsigned int order) +{ + struct marker *marker; + struct serialize_long_int data; + + if (unlikely(!page)) + return; + + data.f1 = page_to_pfn(page); + data.f2 = order; + + marker = &GET_MARKER(mm, page_alloc); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +#ifdef CONFIG_SWAP +void probe_swap_in(void *_data, struct page *page, swp_entry_t entry) +{ + trace_mark_tp(mm, swap_in, swap_in, probe_swap_in, + "pfn %lu filp %p offset %lu", + page_to_pfn(page), + get_swap_info_struct(swp_type(entry))->swap_file, + swp_offset(entry)); +} + +void probe_swap_out(void *_data, struct page *page) +{ + trace_mark_tp(mm, swap_out, swap_out, probe_swap_out, + "pfn %lu filp %p offset %lu", + page_to_pfn(page), + get_swap_info_struct(swp_type( + page_swp_entry(page)))->swap_file, + swp_offset(page_swp_entry(page))); +} + +void probe_swap_file_close(void *_data, struct file *file) +{ + trace_mark_tp(mm, swap_file_close, swap_file_close, + probe_swap_file_close, "filp %p", file); +} + +void probe_swap_file_open(void *_data, struct file *file, char *filename) +{ + trace_mark_tp(mm, swap_file_open, swap_file_open, + probe_swap_file_open, "filp %p filename %s", + file, filename); +} +#endif + +void probe_add_to_page_cache(void *_data, struct address_space *mapping, pgoff_t offset) +{ + trace_mark_tp(mm, add_to_page_cache, add_to_page_cache, + probe_add_to_page_cache, + "inode %lu sdev %u", + mapping->host->i_ino, mapping->host->i_sb->s_dev); +} + +void probe_remove_from_page_cache(void *_data, struct address_space *mapping) +{ + trace_mark_tp(mm, remove_from_page_cache, remove_from_page_cache, + probe_remove_from_page_cache, + "inode %lu sdev %u", + mapping->host->i_ino, mapping->host->i_sb->s_dev); +} + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("MM Tracepoint Probes"); diff --git a/discard/probes/net-extended-trace.c b/discard/probes/net-extended-trace.c new file mode 100644 index 00000000..15fc8109 --- /dev/null +++ b/discard/probes/net-extended-trace.c @@ -0,0 +1,146 @@ +/* + * ltt/probes/net-extended-trace.c + * + * Net tracepoint extended probes. + * + * These probes record many header fields from TCP and UDP messages. Here are + * the consequences of this: + * 1) it allows analyzing network traffic to provide some pcap-like + * functionality within LTTng + * 2) it allows offline synchronization of a group of concurrent traces + * recorded on different nodes + * 3) it increases tracing overhead + * + * You can leave out these probes or not activate them if you are not + * especially interested in the details of network traffic and do not wish to + * synchronize distributed traces. + * + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "../ltt-type-serializer.h" + +void probe_net_dev_xmit_extended(void *_data, struct sk_buff *skb); + +DEFINE_MARKER_TP(net, dev_xmit_extended, net_dev_xmit, + probe_net_dev_xmit_extended, "skb 0x%lX network_protocol #n2u%hu " + "transport_protocol #1u%u saddr #n4u%lu daddr #n4u%lu " + "tot_len #n2u%hu ihl #1u%u source #n2u%hu dest #n2u%hu seq #n4u%lu " + "ack_seq #n4u%lu doff #1u%u ack #1u%u rst #1u%u syn #1u%u fin #1u%u"); + +notrace void probe_net_dev_xmit_extended(void *_data, struct sk_buff *skb) +{ + struct marker *marker; + struct serialize_l214421224411111 data; + struct iphdr *iph = ip_hdr(skb); + struct tcphdr *th = tcp_hdr(skb); + + data.f1 = (unsigned long)skb; + data.f2 = skb->protocol; + + if (ntohs(skb->protocol) == ETH_P_IP) { + data.f3 = ip_hdr(skb)->protocol; + data.f4 = iph->saddr; + data.f5 = iph->daddr; + data.f6 = iph->tot_len; + data.f7 = iph->ihl; + + if (data.f3 == IPPROTO_TCP) { + data.f8 = th->source; + data.f9 = th->dest; + data.f10 = th->seq; + data.f11 = th->ack_seq; + data.f12 = th->doff; + data.f13 = th->ack; + data.f14 = th->rst; + data.f15 = th->syn; + data.f16 = th->fin; + } + } + + marker = &GET_MARKER(net, dev_xmit_extended); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +void probe_tcpv4_rcv_extended(void *_data, struct sk_buff *skb); + +DEFINE_MARKER_TP(net, tcpv4_rcv_extended, net_tcpv4_rcv, + probe_tcpv4_rcv_extended, "skb 0x%lX saddr #n4u%lu daddr #n4u%lu " + "tot_len #n2u%hu ihl #1u%u source #n2u%hu dest #n2u%hu seq #n4u%lu " + "ack_seq #n4u%lu doff #1u%u ack #1u%u rst #1u%u syn #1u%u fin #1u%u"); + +notrace void probe_tcpv4_rcv_extended(void *_data, struct sk_buff *skb) +{ + struct marker *marker; + struct serialize_l4421224411111 data; + struct iphdr *iph = ip_hdr(skb); + struct tcphdr *th = tcp_hdr(skb); + + data.f1 = (unsigned long)skb; + data.f2 = iph->saddr; + data.f3 = iph->daddr; + data.f4 = iph->tot_len; + data.f5 = iph->ihl; + data.f6 = th->source; + data.f7 = th->dest; + data.f8 = th->seq; + data.f9 = th->ack_seq; + data.f10 = th->doff; + data.f11 = th->ack; + data.f12 = th->rst; + data.f13 = th->syn; + data.f14 = th->fin; + + marker = &GET_MARKER(net, tcpv4_rcv_extended); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +void probe_udpv4_rcv_extended(void *_data, struct sk_buff *skb); + +DEFINE_MARKER_TP(net, udpv4_rcv_extended, net_udpv4_rcv, + probe_udpv4_rcv_extended, "skb 0x%lX saddr #n4u%lu daddr #n4u%lu " + "unicast #1u%u ulen #n2u%hu source #n2u%hu dest #n2u%hu " + "data_start #8u%lx"); + +notrace void probe_udpv4_rcv_extended(void *_data, struct sk_buff *skb) +{ + struct marker *marker; + struct serialize_l4412228 data; + struct iphdr *iph = ip_hdr(skb); + struct rtable *rt = skb_rtable(skb); + struct udphdr *uh = udp_hdr(skb); + + data.f1 = (unsigned long)skb; + data.f2 = iph->saddr; + data.f3 = iph->daddr; + data.f4 = rt->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST) ? 0 : 1; + data.f5 = uh->len; + data.f6 = uh->source; + data.f7 = uh->dest; + /* UDP header has not been pulled from skb->data, read the first 8 + * bytes of UDP data if they are not in a fragment*/ + data.f8 = 0; + if (skb_headlen(skb) >= sizeof(struct udphdr) + 8) + data.f8 = *(unsigned long long *)(skb->data + sizeof(*uh)); + else if (skb_headlen(skb) >= sizeof(struct udphdr)) + memcpy(&data.f8, skb->data + sizeof(struct udphdr), + skb_headlen(skb) - sizeof(struct udphdr)); + + marker = &GET_MARKER(net, udpv4_rcv_extended); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(unsigned long long)); +} + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Benjamin Poirier"); +MODULE_DESCRIPTION("Net Tracepoint Extended Probes"); diff --git a/discard/probes/net-trace.c b/discard/probes/net-trace.c new file mode 100644 index 00000000..3124125d --- /dev/null +++ b/discard/probes/net-trace.c @@ -0,0 +1,406 @@ +/* + * ltt/probes/net-trace.c + * + * Net tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "../ltt-type-serializer.h" + +void probe_net_dev_xmit(void *_data, struct sk_buff *skb); + +DEFINE_MARKER_TP(net, dev_xmit, net_dev_xmit, probe_net_dev_xmit, + "skb %p protocol #n2u%hu"); + +notrace void probe_net_dev_xmit(void *_data, struct sk_buff *skb) +{ + struct marker *marker; + struct serialize_long_short data; + + data.f1 = (unsigned long)skb; + data.f2 = skb->protocol; + + marker = &GET_MARKER(net, dev_xmit); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +void probe_net_dev_receive(void *_data, struct sk_buff *skb); + +DEFINE_MARKER_TP(net, dev_receive, net_dev_receive, probe_net_dev_receive, + "skb %p protocol #n2u%hu"); + +notrace void probe_net_dev_receive(void *_data, struct sk_buff *skb) +{ + struct marker *marker; + struct serialize_long_short data; + + data.f1 = (unsigned long)skb; + data.f2 = skb->protocol; + + marker = &GET_MARKER(net, dev_receive); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +void probe_ipv4_addr_add(void *_data, struct in_ifaddr *ifa) +{ + trace_mark_tp(netif_state, insert_ifa_ipv4, ipv4_addr_add, + probe_ipv4_addr_add, "label %s address #4u%u", + ifa->ifa_label, (unsigned int)ifa->ifa_address); +} + +void probe_ipv4_addr_del(void *_data, struct in_ifaddr *ifa) +{ + trace_mark_tp(netif_state, del_ifa_ipv4, ipv4_addr_del, + probe_ipv4_addr_del, "label %s address #4u%u", + ifa->ifa_label, (unsigned int)ifa->ifa_address); +} + +void probe_ipv6_addr_add(void *_data, struct inet6_ifaddr *ifa) +{ + __u8 *addr = ifa->addr.s6_addr; + + trace_mark_tp(netif_state, insert_ifa_ipv6, ipv6_addr_add, + probe_ipv6_addr_add, + "label %s " + "a15 #1x%c a14 #1x%c a13 #1x%c a12 #1x%c " + "a11 #1x%c a10 #1x%c a9 #1x%c a8 #1x%c " + "a7 #1x%c a6 #1x%c a5 #1x%c a4 #1x%c " + "a3 #1x%c a2 #1x%c a1 #1x%c a0 #1x%c", + ifa->idev->dev->name, + addr[15], addr[14], addr[13], addr[12], + addr[11], addr[10], addr[9], addr[8], + addr[7], addr[6], addr[5], addr[4], + addr[3], addr[2], addr[1], addr[0]); +} + +void probe_ipv6_addr_del(void *_data, struct inet6_ifaddr *ifa) +{ + __u8 *addr = ifa->addr.s6_addr; + + trace_mark_tp(netif_state, insert_ifa_ipv6, ipv6_addr_del, + probe_ipv6_addr_del, + "label %s " + "a15 #1x%c a14 #1x%c a13 #1x%c a12 #1x%c " + "a11 #1x%c a10 #1x%c a9 #1x%c a8 #1x%c " + "a7 #1x%c a6 #1x%c a5 #1x%c a4 #1x%c " + "a3 #1x%c a2 #1x%c a1 #1x%c a0 #1x%c", + ifa->idev->dev->name, + addr[15], addr[14], addr[13], addr[12], + addr[11], addr[10], addr[9], addr[8], + addr[7], addr[6], addr[5], addr[4], + addr[3], addr[2], addr[1], addr[0]); +} + +void probe_socket_create(void *_data, int family, int type, int protocol, + struct socket *sock, int ret) +{ + trace_mark_tp(net, socket_create, socket_create, probe_socket_create, + "family %d type %d protocol %d sock %p ret %d", + family, type, protocol, sock, ret); +} + +void probe_socket_bind(void *_data, int fd, struct sockaddr __user *umyaddr, int addrlen, + int ret) +{ + trace_mark_tp(net, socket_bind, socket_bind, probe_socket_bind, + "fd %d umyaddr %p addrlen %d ret %d", + fd, umyaddr, addrlen, ret); +} + +void probe_socket_connect(void *_data, int fd, struct sockaddr __user *uservaddr, + int addrlen, int ret) +{ + trace_mark_tp(net, socket_connect, socket_connect, probe_socket_connect, + "fd %d uservaddr %p addrlen %d ret %d", + fd, uservaddr, addrlen, ret); +} + +void probe_socket_listen(void *_data, int fd, int backlog, int ret) +{ + trace_mark_tp(net, socket_listen, socket_listen, probe_socket_listen, + "fd %d backlog %d ret %d", + fd, backlog, ret); +} + +void probe_socket_accept(void *_data, int fd, struct sockaddr __user *upeer_sockaddr, + int __user *upeer_addrlen, int flags, int ret) +{ + trace_mark_tp(net, socket_accept, socket_accept, probe_socket_accept, + "fd %d upeer_sockaddr %p upeer_addrlen %p flags %d ret %d", + fd, upeer_sockaddr, upeer_addrlen, flags, ret); +} + +void probe_socket_getsockname(void *_data, int fd, struct sockaddr __user *usockaddr, + int __user *usockaddr_len, int ret) +{ + trace_mark_tp(net, socket_getsockname, socket_getsockname, + probe_socket_getsockname, + "fd %d usockaddr %p usockaddr_len %p ret %d", + fd, usockaddr, usockaddr_len, ret); +} + +void probe_socket_getpeername(void *_data, int fd, struct sockaddr __user *usockaddr, + int __user *usockaddr_len, int ret) +{ + trace_mark_tp(net, socket_getpeername, socket_getpeername, + probe_socket_getpeername, + "fd %d usockaddr %p usockaddr_len %p ret %d", + fd, usockaddr, usockaddr_len, ret); +} + +void probe_socket_socketpair(void *_data, int family, int type, int protocol, + int __user *usockvec, int ret) +{ + trace_mark_tp(net, socket_socketpair, socket_socketpair, + probe_socket_socketpair, + "family %d type %d protocol %d usockvec %p ret %d", + family, type, protocol, usockvec, ret); +} + +void probe_socket_sendmsg(void *_data, struct socket *sock, struct msghdr *msg, size_t size, + int ret); + +DEFINE_MARKER_TP(net, socket_sendmsg, net_socket_sendmsg, + probe_socket_sendmsg, + "sock %p msg %p size %zu ret %d"); + +notrace void probe_socket_sendmsg(void *_data, struct socket *sock, struct msghdr *msg, + size_t size, int ret) +{ + struct marker *marker; + struct serialize_long_long_sizet_int data; + + data.f1 = (unsigned long)sock; + data.f2 = (unsigned long)msg; + data.f3 = size; + data.f4 = ret; + + marker = &GET_MARKER(net, socket_sendmsg); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(size_t)); +} + +void probe_socket_recvmsg(void *_data, struct socket *sock, struct msghdr *msg, size_t size, + int flags, int ret); + +DEFINE_MARKER_TP(net, socket_recvmsg, net_socket_recvmsg, + probe_socket_recvmsg, + "sock %p msg %p size %zu flags %d ret %d"); + +notrace void probe_socket_recvmsg(void *_data, struct socket *sock, struct msghdr *msg, + size_t size, int flags, int ret) +{ + struct marker *marker; + struct serialize_long_long_sizet_int_int data; + + data.f1 = (unsigned long)sock; + data.f2 = (unsigned long)msg; + data.f3 = size; + data.f4 = flags; + data.f5 = ret; + + marker = &GET_MARKER(net, socket_recvmsg); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(size_t)); +} + +void probe_socket_setsockopt(void *_data, int fd, int level, int optname, + char __user *optval, int optlen, int ret) +{ + trace_mark_tp(net, socket_setsockopt, socket_setsockopt, + probe_socket_setsockopt, + "fd %d level %d optname %d optval %p optlen %d ret %d", + fd, level, optname, optval, optlen, ret); +} + +void probe_socket_getsockopt(void *_data, int fd, int level, int optname, + char __user *optval, int __user *optlen, int ret) +{ + trace_mark_tp(net, socket_getsockopt, socket_getsockopt, + probe_socket_getsockopt, + "fd %d level %d optname %d optval %p optlen %p ret %d", + fd, level, optname, optval, optlen, ret); +} + +void probe_socket_shutdown(void *_data, int fd, int how, int ret) +{ + trace_mark_tp(net, socket_shutdown, socket_shutdown, + probe_socket_shutdown, + "fd %d how %d ret %d", + fd, how, ret); +} + +void probe_socket_call(void *_data, int call, unsigned long a0) +{ + trace_mark_tp(net, socket_call, socket_call, probe_socket_call, + "call %d a0 %lu", call, a0); +} + +void probe_tcpv4_rcv(void *_data, struct sk_buff *skb); + +DEFINE_MARKER_TP(net, tcpv4_rcv, net_tcpv4_rcv, probe_tcpv4_rcv, + "skb %p"); + +notrace void probe_tcpv4_rcv(void *_data, struct sk_buff *skb) +{ + struct marker *marker; + + marker = &GET_MARKER(net, tcpv4_rcv); + ltt_specialized_trace(marker, marker->single.probe_private, + &skb, sizeof(skb), sizeof(skb)); +} + +void probe_udpv4_rcv(void *_data, struct sk_buff *skb); + +DEFINE_MARKER_TP(net, udpv4_rcv, net_udpv4_rcv, probe_udpv4_rcv, + "skb %p"); + +notrace void probe_udpv4_rcv(void *_data, struct sk_buff *skb) +{ + struct marker *marker; + + marker = &GET_MARKER(net, udpv4_rcv); + ltt_specialized_trace(marker, marker->single.probe_private, + &skb, sizeof(skb), sizeof(skb)); +} + +#ifdef CONFIG_NETPOLL +void probe_net_napi_schedule(void *_data, struct napi_struct *n); + +DEFINE_MARKER_TP(net, napi_schedule, net_napi_schedule, + probe_net_napi_schedule, + "napi_struct %p name %s"); + +notrace void probe_net_napi_schedule(void *_data, struct napi_struct *n) +{ + struct marker *marker; + struct serialize_long_ifname data; + size_t data_len = 0; + + data.f1 = (unsigned long)n; + data_len += sizeof(data.f1); + /* No need to align for strings */ + strcpy(data.f2, n->dev ? n->dev->name : ""); + data_len += strlen(data.f2) + 1; + + marker = &GET_MARKER(net, napi_schedule); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, data_len, sizeof(long)); +} + +void probe_net_napi_poll(void *_data, struct napi_struct *n); + +DEFINE_MARKER_TP(net, napi_poll, net_napi_poll, + probe_net_napi_poll, + "napi_struct %p name %s"); + +notrace void probe_net_napi_poll(void *_data, struct napi_struct *n) +{ + struct marker *marker; + struct serialize_long_ifname data; + size_t data_len = 0; + + data.f1 = (unsigned long)n; + data_len += sizeof(data.f1); + /* No need to align for strings */ + strcpy(data.f2, n->dev ? n->dev->name : ""); + data_len += strlen(data.f2) + 1; + + marker = &GET_MARKER(net, napi_poll); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, data_len, sizeof(long)); +} + +void probe_net_napi_complete(void *_data, struct napi_struct *n); + +DEFINE_MARKER_TP(net, napi_complete, net_napi_complete, + probe_net_napi_complete, + "napi_struct %p name %s"); + +notrace void probe_net_napi_complete(void *_data, struct napi_struct *n) +{ + struct marker *marker; + struct serialize_long_ifname data; + size_t data_len = 0; + + data.f1 = (unsigned long)n; + data_len += sizeof(data.f1); + /* No need to align for strings */ + strcpy(data.f2, n->dev ? n->dev->name : ""); + data_len += strlen(data.f2) + 1; + + marker = &GET_MARKER(net, napi_complete); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, data_len, sizeof(long)); +} +#else /* !CONFIG_NETPOLL */ +void probe_net_napi_schedule(void *_data, struct napi_struct *n); + +DEFINE_MARKER_TP(net, napi_schedule, net_napi_schedule, + probe_net_napi_schedule, + "napi_struct %p"); + +notrace void probe_net_napi_schedule(void *_data, struct napi_struct *n) +{ + struct marker *marker; + unsigned long data; + + data = (unsigned long)n; + + marker = &GET_MARKER(net, napi_schedule); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, sizeof(data), sizeof(data)); +} + +void probe_net_napi_poll(void *_data, struct napi_struct *n); + +DEFINE_MARKER_TP(net, napi_poll, net_napi_poll, + probe_net_napi_poll, + "napi_struct %p"); + +notrace void probe_net_napi_poll(void *_data, struct napi_struct *n) +{ + struct marker *marker; + unsigned long data; + + data = (unsigned long)n; + + marker = &GET_MARKER(net, napi_poll); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, sizeof(data), sizeof(data)); +} + +void probe_net_napi_complete(void *_data, struct napi_struct *n); + +DEFINE_MARKER_TP(net, napi_complete, net_napi_complete, + probe_net_napi_complete, + "napi_struct %p"); + +notrace void probe_net_napi_complete(void *_data, struct napi_struct *n) +{ + struct marker *marker; + unsigned long data; + + data = (unsigned long)n; + + marker = &GET_MARKER(net, napi_complete); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, sizeof(data), sizeof(data)); +} +#endif + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("Net Tracepoint Probes"); diff --git a/discard/probes/pm-trace.c b/discard/probes/pm-trace.c new file mode 100644 index 00000000..7abe8e37 --- /dev/null +++ b/discard/probes/pm-trace.c @@ -0,0 +1,43 @@ +/* + * ltt/probes/pm-trace.c + * + * Power Management tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include + +void probe_pm_idle_entry(void *_data) +{ + trace_mark_tp(pm, idle_entry, pm_idle_entry, + probe_pm_idle_entry, "irqstate #1%d", + irqs_disabled()); +} + +void probe_pm_idle_exit(void *_data) +{ + trace_mark_tp(pm, idle_exit, pm_idle_exit, + probe_pm_idle_exit, "irqstate #1%d", + irqs_disabled()); +} + +void probe_pm_suspend_entry(void *_data) +{ + trace_mark_tp(pm, suspend_entry, pm_suspend_entry, + probe_pm_suspend_entry, "irqstate #1%d", + irqs_disabled()); +} + +void probe_pm_suspend_exit(void *_data) +{ + trace_mark_tp(pm, suspend_exit, pm_suspend_exit, + probe_pm_suspend_exit, "irqstate #1%d", + irqs_disabled()); +} + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("Power Management Tracepoint Probes"); diff --git a/discard/probes/rcu-trace.c b/discard/probes/rcu-trace.c new file mode 100644 index 00000000..cc164546 --- /dev/null +++ b/discard/probes/rcu-trace.c @@ -0,0 +1,36 @@ +/* + * ltt/probes/rcu-trace.c + * + * RCU tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include + +#ifdef CONFIG_TREE_RCU +void probe_rcu_tree_callback(void *data, struct rcu_head *head) +{ + trace_mark_tp(rcu, tree_callback, rcu_tree_callback, + probe_rcu_tree_callback, "func %p", head->func); +} + +void probe_rcu_tree_call_rcu(void *data, struct rcu_head *head, unsigned long ip) +{ + trace_mark_tp(rcu, tree_call_rcu, rcu_tree_call_rcu, + probe_rcu_tree_call_rcu, "func %p ip 0x%lX", head->func, ip); +} + +void probe_rcu_tree_call_rcu_bh(void *data, struct rcu_head *head, unsigned long ip) +{ + trace_mark_tp(rcu, tree_call_rcu_bh, rcu_tree_call_rcu_bh, + probe_rcu_tree_call_rcu_bh, "func %p ip 0x%lX", + head->func, ip); +} +#endif + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("RCU Tracepoint Probes"); diff --git a/discard/probes/syscall-trace.c b/discard/probes/syscall-trace.c new file mode 100644 index 00000000..9ae419fc --- /dev/null +++ b/discard/probes/syscall-trace.c @@ -0,0 +1,54 @@ +/* + * ltt/probes/syscall-trace.c + * + * System call tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include + +#include "../ltt-type-serializer.h" + + +/* kernel_syscall_entry specialized tracepoint probe */ + +void probe_syscall_entry(void *_data, struct pt_regs *regs, long id); + +DEFINE_MARKER_TP(kernel, syscall_entry, syscall_entry, + probe_syscall_entry, "ip #p%ld syscall_id #2u%u"); + +notrace void probe_syscall_entry(void *_data, struct pt_regs *regs, long id) +{ + struct marker *marker; + struct serialize_long_short data; + + data.f1 = instruction_pointer(regs); + data.f2 = (unsigned short)id; + + marker = &GET_MARKER(kernel, syscall_entry); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +/* kernel_syscall_exit specialized tracepoint probe */ + +void probe_syscall_exit(void *_data, long ret); + +DEFINE_MARKER_TP(kernel, syscall_exit, syscall_exit, + probe_syscall_exit, "ret %ld"); + +notrace void probe_syscall_exit(void *_data, long ret) +{ + struct marker *marker; + + marker = &GET_MARKER(kernel, syscall_exit); + ltt_specialized_trace(marker, marker->single.probe_private, + &ret, sizeof(ret), sizeof(ret)); +} + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("syscall Tracepoint Probes"); diff --git a/discard/probes/trap-trace.c b/discard/probes/trap-trace.c new file mode 100644 index 00000000..397254cd --- /dev/null +++ b/discard/probes/trap-trace.c @@ -0,0 +1,56 @@ +/* + * ltt/probes/trap-trace.c + * + * Trap tracepoint probes. + * + * (C) Copyright 2009 - Mathieu Desnoyers + * Dual LGPL v2.1/GPL v2 license. + */ + +#include +#include + +#include "../ltt-type-serializer.h" + +/* kernel_trap_entry specialized tracepoint probe */ + +void probe_trap_entry(void *_data, struct pt_regs *regs, long id); + +DEFINE_MARKER_TP(kernel, trap_entry, trap_entry, + probe_trap_entry, "ip #p%ld trap_id #2u%u"); + +notrace void probe_trap_entry(void *_data, struct pt_regs *regs, long id) +{ + struct marker *marker; + struct serialize_long_short data; + + if (likely(regs)) + data.f1 = instruction_pointer(regs); + else + data.f1 = 0UL; + data.f2 = (unsigned short)id; + + marker = &GET_MARKER(kernel, trap_entry); + ltt_specialized_trace(marker, marker->single.probe_private, + &data, serialize_sizeof(data), sizeof(long)); +} + +/* kernel_syscall_exit specialized tracepoint probe */ + +void probe_trap_exit(void *_data); + +DEFINE_MARKER_TP(kernel, trap_exit, trap_exit, + probe_trap_exit, MARK_NOARGS); + +notrace void probe_trap_exit(void *_data) +{ + struct marker *marker; + + marker = &GET_MARKER(kernel, trap_exit); + ltt_specialized_trace(marker, marker->single.probe_private, + NULL, 0, 0); +} + +MODULE_LICENSE("GPL and additional rights"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("Trap Tracepoint Probes"); diff --git a/probes/Makefile b/probes/Makefile deleted file mode 100644 index d8f1c403..00000000 --- a/probes/Makefile +++ /dev/null @@ -1,47 +0,0 @@ -# LTTng tracing probes - -ifdef CONFIG_FTRACE -CFLAGS_REMOVE_kernel-trace.o = -pg -CFLAGS_REMOVE_mm-trace.o = -pg -CFLAGS_REMOVE_fs-trace.o = -pg -CFLAGS_REMOVE_ipc-trace.o = -pg -CFLAGS_REMOVE_lockdep-trace.o = -pg -CFLAGS_REMOVE_rcu-trace.o = -pg -CFLAGS_REMOVE_syscall-trace.o = -pg -CFLAGS_REMOVE_trap-trace.o = -pg -CFLAGS_REMOVE_pm-trace.o = -pg -endif - -obj-m += kernel-trace.o mm-trace.o fs-trace.o ipc-trace.o lockdep-trace.o \ - rcu-trace.o syscall-trace.o trap-trace.o pm-trace.o - -ifeq ($(CONFIG_NET),y) -ifdef CONFIG_FTRACE -CFLAGS_REMOVE_net-trace.o = -pg -CFLAGS_REMOVE_net-extended-trace.o = -pg -endif -obj-m += net-trace.o net-extended-trace.o -endif - -ifdef CONFIG_JBD2 -ifdef CONFIG_FTRACE -CFLAGS_REMOVE_jbd2-trace.o = -pg -endif -obj-m += jbd2-trace.o -endif - -#ifdef CONFIG_EXT4_FS -#ifdef CONFIG_FTRACE -#CFLAGS_REMOVE_ext4-trace.o = -pg -#endif -#obj-$(CONFIG_LTT_TRACEPROBES) += ext4-trace.o -#endif - -ifdef CONFIG_BLOCK -ifdef CONFIG_FTRACE -CFLAGS_REMOVE_block-trace.o = -pg -endif -obj-m += block-trace.o -endif - - diff --git a/probes/block-trace.c b/probes/block-trace.c deleted file mode 100644 index 51ae2cdd..00000000 --- a/probes/block-trace.c +++ /dev/null @@ -1,309 +0,0 @@ -/* - * ltt/probes/block-trace.c - * - * block layer tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include - -#include - -/* - * Add rq cmd as a sequence. Needs new type. (size + binary blob) - */ - -void probe_block_rq_abort(void *data, struct request_queue *q, struct request *rq) -{ - int rw = rq->cmd_flags & 0x03; - - if (blk_discard_rq(rq)) - rw |= (1 << BIO_RW_DISCARD); - - if (blk_pc_request(rq)) { - trace_mark_tp(block, rq_abort_pc, block_rq_abort, - probe_block_rq_abort, - "data_len %u rw %d errors %d", - blk_rq_bytes(rq), rw, rq->errors); - } else { - /* - * FIXME Using a simple trace_mark for the second event - * possibility because tracepoints do not support multiple - * connections to the same probe yet. They should have some - * refcounting. Need to enable both rq_abort_pc and rq_abort_fs - * markers to have the rq_abort_fs marker enabled. - */ - trace_mark(block, rq_abort_fs, - "hard_sector %llu " - "rw %d errors %d", (unsigned long long)blk_rq_pos(rq), - rw, rq->errors); - } -} - -void probe_block_rq_insert(void *data, struct request_queue *q, struct request *rq) -{ - int rw = rq->cmd_flags & 0x03; - - if (blk_discard_rq(rq)) - rw |= (1 << BIO_RW_DISCARD); - - if (blk_pc_request(rq)) { - trace_mark_tp(block, rq_insert_pc, block_rq_insert, - probe_block_rq_insert, - "data_len %u rw %d errors %d", - blk_rq_bytes(rq), rw, rq->errors); - } else { - /* - * FIXME Using a simple trace_mark for the second event - * possibility because tracepoints do not support multiple - * connections to the same probe yet. They should have some - * refcounting. Need to enable both rq_insert_pc and - * rq_insert_fs markers to have the rq_insert_fs marker enabled. - */ - trace_mark(block, rq_insert_fs, - "hard_sector %llu " - "rw %d errors %d", (unsigned long long)blk_rq_pos(rq), - rw, rq->errors); - } -} - -void probe_block_rq_issue(void *data, struct request_queue *q, struct request *rq) -{ - int rw = rq->cmd_flags & 0x03; - - if (blk_discard_rq(rq)) - rw |= (1 << BIO_RW_DISCARD); - - if (blk_pc_request(rq)) { - trace_mark_tp(block, rq_issue_pc, block_rq_issue, - probe_block_rq_issue, - "data_len %u rw %d errors %d", - blk_rq_bytes(rq), rw, rq->errors); - } else { - /* - * FIXME Using a simple trace_mark for the second event - * possibility because tracepoints do not support multiple - * connections to the same probe yet. They should have some - * refcounting. Need to enable both rq_issue_pc and rq_issue_fs - * markers to have the rq_issue_fs marker enabled. - */ - trace_mark(block, rq_issue_fs, - "hard_sector %llu " - "rw %d errors %d", (unsigned long long)blk_rq_pos(rq), - rw, rq->errors); - } -} - -void probe_block_rq_requeue(void *data, struct request_queue *q, struct request *rq) -{ - int rw = rq->cmd_flags & 0x03; - - if (blk_discard_rq(rq)) - rw |= (1 << BIO_RW_DISCARD); - - if (blk_pc_request(rq)) { - trace_mark_tp(block, rq_requeue_pc, block_rq_requeue, - probe_block_rq_requeue, - "data_len %u rw %d errors %d", - blk_rq_bytes(rq), rw, rq->errors); - } else { - /* - * FIXME Using a simple trace_mark for the second event - * possibility because tracepoints do not support multiple - * connections to the same probe yet. They should have some - * refcounting. Need to enable both rq_requeue_pc and - * rq_requeue_fs markers to have the rq_requeue_fs marker - * enabled. - */ - trace_mark(block, rq_requeue_fs, - "hard_sector %llu " - "rw %d errors %d", (unsigned long long)blk_rq_pos(rq), - rw, rq->errors); - } -} - -void probe_block_rq_complete(void *data, struct request_queue *q, struct request *rq) -{ - int rw = rq->cmd_flags & 0x03; - - if (blk_discard_rq(rq)) - rw |= (1 << BIO_RW_DISCARD); - - if (blk_pc_request(rq)) { - trace_mark_tp(block, rq_complete_pc, block_rq_complete, - probe_block_rq_complete, - "data_len %u rw %d errors %d", - blk_rq_bytes(rq), rw, rq->errors); - } else { - /* - * FIXME Using a simple trace_mark for the second event - * possibility because tracepoints do not support multiple - * connections to the same probe yet. They should have some - * refcounting. Need to enable both rq_complete_pc and - * rq_complete_fs markers to have the rq_complete_fs marker - * enabled. - */ - trace_mark(block, rq_complete_fs, - "hard_sector %llu " - "rw %d errors %d", (unsigned long long)blk_rq_pos(rq), - rw, rq->errors); - } -} - -void probe_block_bio_bounce(void *data, struct request_queue *q, struct bio *bio) -{ - trace_mark_tp(block, bio_bounce, block_bio_bounce, - probe_block_bio_bounce, - "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," - "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " - "not_uptodate #1u%d", - (unsigned long long)bio->bi_sector, bio->bi_size, - bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); -} - -void probe_block_bio_complete(void *data, struct request_queue *q, struct bio *bio) -{ - trace_mark_tp(block, bio_complete, block_bio_complete, - probe_block_bio_complete, - "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," - "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " - "not_uptodate #1u%d", - (unsigned long long)bio->bi_sector, bio->bi_size, - bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); -} - -void probe_block_bio_backmerge(void *data, struct request_queue *q, struct bio *bio) -{ - trace_mark_tp(block, bio_backmerge, block_bio_backmerge, - probe_block_bio_backmerge, - "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," - "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " - "not_uptodate #1u%d", - (unsigned long long)bio->bi_sector, bio->bi_size, - bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); -} - -void probe_block_bio_frontmerge(void *data, struct request_queue *q, struct bio *bio) -{ - trace_mark_tp(block, bio_frontmerge, block_bio_frontmerge, - probe_block_bio_frontmerge, - "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," - "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " - "not_uptodate #1u%d", - (unsigned long long)bio->bi_sector, bio->bi_size, - bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); -} - -void probe_block_bio_queue(void *data, struct request_queue *q, struct bio *bio) -{ - trace_mark_tp(block, bio_queue, block_bio_queue, - probe_block_bio_queue, - "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," - "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " - "not_uptodate #1u%d", - (unsigned long long)bio->bi_sector, bio->bi_size, - bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); -} - -void probe_block_getrq(void *data, struct request_queue *q, struct bio *bio, int rw) -{ - if (bio) { - trace_mark_tp(block, getrq_bio, block_getrq, - probe_block_getrq, - "sector %llu size %u " - "rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," - "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " - "not_uptodate #1u%d", - (unsigned long long)bio->bi_sector, bio->bi_size, - bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); - } else { - /* - * FIXME Using a simple trace_mark for the second event - * possibility because tracepoints do not support multiple - * connections to the same probe yet. They should have some - * refcounting. Need to enable both getrq_bio and getrq markers - * to have the getrq marker enabled. - */ - trace_mark(block, getrq, "rw %d", rw); - } -} - -void probe_block_sleeprq(void *data, struct request_queue *q, struct bio *bio, int rw) -{ - if (bio) { - trace_mark_tp(block, sleeprq_bio, block_sleeprq, - probe_block_sleeprq, - "sector %llu size %u " - "rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," - "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " - "not_uptodate #1u%d", - (unsigned long long)bio->bi_sector, bio->bi_size, - bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE)); - } else { - /* - * FIXME Using a simple trace_mark for the second event - * possibility because tracepoints do not support multiple - * connections to the same probe yet. They should have some - * refcounting. Need to enable both sleeprq_bio and sleeprq - * markers to have the sleeprq marker enabled. - */ - trace_mark(block, sleeprq, "rw %d", rw); - } -} - -void probe_block_plug(void *data, struct request_queue *q) -{ - trace_mark_tp(block, plug, block_plug, probe_block_plug, - MARK_NOARGS); -} - -void probe_block_unplug_io(void *data, struct request_queue *q) -{ - unsigned int pdu = q->rq.count[READ] + q->rq.count[WRITE]; - - trace_mark_tp(block, unplug_io, block_unplug_io, probe_block_unplug_io, - "pdu %u", pdu); -} - -void probe_block_unplug_timer(void *data, struct request_queue *q) -{ - unsigned int pdu = q->rq.count[READ] + q->rq.count[WRITE]; - - trace_mark_tp(block, unplug_timer, block_unplug_timer, - probe_block_unplug_timer, - "pdu %u", pdu); -} - -void probe_block_split(void *data, struct request_queue *q, struct bio *bio, - unsigned int pdu) -{ - trace_mark_tp(block, split, block_split, - probe_block_split, - "sector %llu size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," - "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " - "not_uptodate #1u%d pdu %u", - (unsigned long long)bio->bi_sector, bio->bi_size, - bio->bi_rw, !bio_flagged(bio, BIO_UPTODATE), pdu); -} - -void probe_block_remap(void *data, struct request_queue *q, struct bio *bio, - dev_t dev, sector_t from) -{ - trace_mark_tp(block, remap, block_remap, - probe_block_remap, - "device_from %lu sector_from %llu device_to %lu " - "size %u rw(FAILFAST_DRIVER,FAILFAST_TRANSPORT," - "FAILFAST_DEV,DISCARD,META,SYNC,BARRIER,AHEAD,RW) %lX " - "not_uptodate #1u%d", - (unsigned long)bio->bi_bdev->bd_dev, - (unsigned long long)from, - (unsigned long)dev, - bio->bi_size, bio->bi_rw, - !bio_flagged(bio, BIO_UPTODATE)); -} - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("Block Tracepoint Probes"); diff --git a/probes/ext4-trace.c b/probes/ext4-trace.c deleted file mode 100644 index 83683e70..00000000 --- a/probes/ext4-trace.c +++ /dev/null @@ -1,611 +0,0 @@ -/* - * ltt/probes/ext4-trace.c - * - * ext4 tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include -#include -#include -#include -#include - -#include "../ltt-tracer.h" -#include "../../fs/ext4/mballoc.h" - -static struct dentry *ext4_filter_dentry, *ext4_filter_dev_dentry, - *ext4_filter_inode_dentry; -static DEFINE_MUTEX(ext4_filter_mutex); -/* Make sure we don't race between module exit and file write */ -static int module_exits; - -struct rcu_dev_filter { - struct rcu_head rcu; - char devname[NAME_MAX]; -}; - -static struct rcu_dev_filter *dev_filter; -/* ~0UL inode_filter enables all inodes */ -static unsigned long inode_filter = ~0UL; - -/* - * Probes are executed in rcu_sched read-side critical section. - */ - -static int do_dev_filter(const char *dev) -{ - struct rcu_dev_filter *ldev_filter = rcu_dereference(dev_filter); - - if (unlikely(ldev_filter)) - if (unlikely(strcmp(ldev_filter->devname, dev))) - return 0; - return 1; -} - -static int do_inode_filter(unsigned long ino) -{ - if (unlikely(inode_filter != ~0UL)) - if (unlikely(inode_filter != ino)) - return 0; - return 1; -} - -/* - * Logical AND between dev and inode filter. - */ -static int do_filter(const char *dev, unsigned long ino) -{ - if (unlikely(!do_dev_filter(dev))) - return 0; - if (unlikely(!do_inode_filter(ino))) - return 0; - return 1; -} - - -void probe_ext4_free_inode(void *data, struct inode *inode) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) - return; - trace_mark_tp(ext4, free_inode, ext4_free_inode, - probe_ext4_free_inode, - "dev %s ino %lu mode %d uid %lu gid %lu blocks %llu", - inode->i_sb->s_id, inode->i_ino, inode->i_mode, - (unsigned long) inode->i_uid, (unsigned long) inode->i_gid, - (unsigned long long) inode->i_blocks); -} - -void probe_ext4_request_inode(void *data, struct inode *dir, int mode) -{ - if (unlikely(!do_filter(dir->i_sb->s_id, dir->i_ino))) - return; - trace_mark_tp(ext4, request_inode, ext4_request_inode, - probe_ext4_request_inode, - "dev %s dir %lu mode %d", - dir->i_sb->s_id, dir->i_ino, mode); -} - -void probe_ext4_allocate_inode(void *data, struct inode *inode, struct inode *dir, int mode) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino) - && !do_filter(dir->i_sb->s_id, dir->i_ino))) - return; - trace_mark_tp(ext4, allocate_inode, ext4_allocate_inode, - probe_ext4_allocate_inode, - "dev %s ino %lu dir %lu mode %d", - dir->i_sb->s_id, inode->i_ino, dir->i_ino, mode); -} - -void probe_ext4_write_begin(void *data, struct inode *inode, loff_t pos, unsigned int len, - unsigned int flags) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) - return; - trace_mark_tp(ext4, write_begin, ext4_write_begin, - probe_ext4_write_begin, - "dev %s ino %lu pos %llu len %u flags %u", - inode->i_sb->s_id, inode->i_ino, - (unsigned long long) pos, len, flags); -} - -void probe_ext4_ordered_write_end(void *data, struct inode *inode, loff_t pos, - unsigned int len, unsigned int copied) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) - return; - trace_mark_tp(ext4, ordered_write_end, ext4_ordered_write_end, - probe_ext4_ordered_write_end, - "dev %s ino %lu pos %llu len %u copied %u", - inode->i_sb->s_id, inode->i_ino, - (unsigned long long) pos, len, copied); -} - -void probe_ext4_writeback_write_end(void *data, struct inode *inode, loff_t pos, - unsigned int len, unsigned int copied) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) - return; - trace_mark_tp(ext4, writeback_write_end, ext4_writeback_write_end, - probe_ext4_writeback_write_end, - "dev %s ino %lu pos %llu len %u copied %u", - inode->i_sb->s_id, inode->i_ino, - (unsigned long long) pos, len, copied); -} - -void probe_ext4_journalled_write_end(void *data, struct inode *inode, loff_t pos, - unsigned int len, unsigned int copied) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) - return; - trace_mark_tp(ext4, journalled_write_end, ext4_journalled_write_end, - probe_ext4_journalled_write_end, - "dev %s ino %lu pos %llu len %u copied %u", - inode->i_sb->s_id, inode->i_ino, - (unsigned long long) pos, len, copied); -} - -/* - * note : wbc_flags will have to be decoded by userspace. - * #1x uses a single byte in the trace. Limits to 8 bits. - */ -void probe_ext4_da_writepages(void *data, struct inode *inode, - struct writeback_control *wbc) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) - return; - trace_mark_tp(ext4, da_writepages, ext4_da_writepages, - probe_ext4_da_writepages, - "dev %s ino %lu nr_to_write %ld " - "pages_skipped %ld range_start %llu range_end %llu " - "wbc_flags(nonblocking,for_kupdate," - "for_reclaim,range_cyclic) #1x%u", - inode->i_sb->s_id, inode->i_ino, wbc->nr_to_write, - wbc->pages_skipped, - (unsigned long long) wbc->range_start, - (unsigned long long) wbc->range_end, - (wbc->nonblocking << 3) - | (wbc->for_kupdate << 2) - | (wbc->for_reclaim << 1) - | wbc->range_cyclic); -} - -/* - * note : wbc_flags will have to be decoded by userspace. - * #1x uses a single byte in the trace. Limits to 8 bits. - */ -void probe_ext4_da_writepages_result(void *data, struct inode *inode, - struct writeback_control *wbc, - int ret, int pages_written) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) - return; - trace_mark_tp(ext4, da_writepages_result, ext4_da_writepages_result, - probe_ext4_da_writepages_result, - "dev %s ino %lu ret %d pages_written %d " - "pages_skipped %ld " - "wbc_flags(encountered_congestion," - "more_io,no_nrwrite_index_update) #1x%u", - inode->i_sb->s_id, inode->i_ino, ret, pages_written, - wbc->pages_skipped, - (wbc->encountered_congestion << 2) - | (wbc->more_io << 1) - | wbc->no_nrwrite_index_update); -} - -void probe_ext4_da_write_begin(void *data, struct inode *inode, loff_t pos, - unsigned int len, unsigned int flags) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) - return; - trace_mark_tp(ext4, da_write_begin, ext4_da_write_begin, - probe_ext4_da_write_begin, - "dev %s ino %lu pos %llu len %u flags %u", - inode->i_sb->s_id, inode->i_ino, - (unsigned long long) pos, len, flags); -} - -void probe_ext4_da_write_end(void *data, struct inode *inode, loff_t pos, - unsigned int len, unsigned int copied) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) - return; - trace_mark_tp(ext4, da_write_end, ext4_da_write_end, - probe_ext4_da_write_end, - "dev %s ino %lu pos %llu len %u copied %u", - inode->i_sb->s_id, inode->i_ino, - (unsigned long long) pos, len, copied); -} - -void probe_ext4_discard_blocks(void *data, struct super_block *sb, unsigned long long blk, - unsigned long long count) -{ - if (unlikely(!do_dev_filter(sb->s_id))) - return; - trace_mark_tp(ext4, discard_blocks, ext4_discard_blocks, - probe_ext4_discard_blocks, - "dev %s blk %llu count %llu", - sb->s_id, blk, count); -} - -void probe_ext4_mb_new_inode_pa(void *data, struct ext4_allocation_context *ac, - struct ext4_prealloc_space *pa) -{ - if (unlikely(!do_filter(ac->ac_sb->s_id, ac->ac_inode->i_ino))) - return; - trace_mark_tp(ext4, mb_new_inode_pa, ext4_mb_new_inode_pa, - probe_ext4_mb_new_inode_pa, - "dev %s ino %lu pstart %llu len %u lstart %u", - ac->ac_sb->s_id, ac->ac_inode->i_ino, pa->pa_pstart, - pa->pa_len, pa->pa_lstart); -} - -void probe_ext4_mb_new_group_pa(void *data, struct ext4_allocation_context *ac, - struct ext4_prealloc_space *pa) -{ - if (unlikely(!do_dev_filter(ac->ac_sb->s_id))) - return; - trace_mark_tp(ext4, mb_new_group_pa, ext4_mb_new_group_pa, - probe_ext4_mb_new_group_pa, - "dev %s pstart %llu len %u lstart %u", - ac->ac_sb->s_id, pa->pa_pstart, - pa->pa_len, pa->pa_lstart); -} - -void probe_ext4_mb_release_inode_pa(void *data, struct ext4_allocation_context *ac, - struct ext4_prealloc_space *pa, - unsigned long long block, - unsigned int count) -{ - if (unlikely(!do_filter(ac->ac_sb->s_id, ac->ac_inode->i_ino))) - return; - trace_mark_tp(ext4, mb_release_inode_pa, ext4_mb_release_inode_pa, - probe_ext4_mb_release_inode_pa, - "dev %s ino %lu block %llu count %u", - ac->ac_sb->s_id, pa->pa_inode->i_ino, block, count); -} - -void probe_ext4_mb_release_group_pa(void *data, struct ext4_allocation_context *ac, - struct ext4_prealloc_space *pa) -{ - if (unlikely(!do_dev_filter(ac->ac_sb->s_id))) - return; - trace_mark_tp(ext4, mb_release_group_pa, ext4_mb_release_group_pa, - probe_ext4_mb_release_group_pa, - "dev %s pstart %llu len %d", - ac->ac_sb->s_id, pa->pa_pstart, pa->pa_len); -} - -void probe_ext4_discard_preallocations(void *data, struct inode *inode) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) - return; - trace_mark_tp(ext4, discard_preallocations, - ext4_discard_preallocations, - probe_ext4_discard_preallocations, - "dev %s ino %lu", - inode->i_sb->s_id, inode->i_ino); -} - -void probe_ext4_mb_discard_preallocations(void *data, struct super_block *sb, int needed) -{ - if (unlikely(!do_dev_filter(sb->s_id))) - return; - trace_mark_tp(ext4, mb_discard_preallocations, - ext4_mb_discard_preallocations, - probe_ext4_mb_discard_preallocations, - "dev %s needed %d", - sb->s_id, needed); -} - -void probe_ext4_request_blocks(void *data, struct ext4_allocation_request *ar) -{ - if (ar->inode) { - if (unlikely(!do_filter(ar->inode->i_sb->s_id, - ar->inode->i_ino))) - return; - } else { - if (unlikely(!do_dev_filter(ar->inode->i_sb->s_id))) - return; - } - trace_mark_tp(ext4, request_blocks, ext4_request_blocks, - probe_ext4_request_blocks, - "dev %s flags %u len %u ino %lu " - "lblk %llu goal %llu lleft %llu lright %llu " - "pleft %llu pright %llu", - ar->inode->i_sb->s_id, ar->flags, ar->len, - ar->inode ? ar->inode->i_ino : 0, - (unsigned long long) ar->logical, - (unsigned long long) ar->goal, - (unsigned long long) ar->lleft, - (unsigned long long) ar->lright, - (unsigned long long) ar->pleft, - (unsigned long long) ar->pright); -} - -void probe_ext4_allocate_blocks(void *data, struct ext4_allocation_request *ar, - unsigned long long block) -{ - if (ar->inode) { - if (unlikely(!do_filter(ar->inode->i_sb->s_id, - ar->inode->i_ino))) - return; - } else { - if (unlikely(!do_dev_filter(ar->inode->i_sb->s_id))) - return; - } - trace_mark_tp(ext4, allocate_blocks, ext4_allocate_blocks, - probe_ext4_allocate_blocks, - "dev %s block %llu flags %u len %u ino %lu " - "logical %llu goal %llu lleft %llu lright %llu " - "pleft %llu pright %llu", - ar->inode->i_sb->s_id, (unsigned long long) block, - ar->flags, ar->len, ar->inode ? ar->inode->i_ino : 0, - (unsigned long long) ar->logical, - (unsigned long long) ar->goal, - (unsigned long long) ar->lleft, - (unsigned long long) ar->lright, - (unsigned long long) ar->pleft, - (unsigned long long) ar->pright); -} - -void probe_ext4_free_blocks(void *data, struct inode *inode, __u64 block, - unsigned long count, int metadata) -{ - if (unlikely(!do_filter(inode->i_sb->s_id, inode->i_ino))) - return; - trace_mark_tp(ext4, free_blocks, ext4_free_blocks, - probe_ext4_free_blocks, - "dev %s block %llu count %lu metadata %d ino %lu", - inode->i_sb->s_id, (unsigned long long)block, - count, metadata, inode->i_ino); -} - -void probe_ext4_sync_file(void *data, struct file *file, struct dentry *dentry, - int datasync) -{ - if (unlikely(!do_dev_filter(dentry->d_inode->i_sb->s_id))) - return; - if (unlikely(!do_inode_filter(dentry->d_inode->i_ino) - && !do_inode_filter(dentry->d_parent->d_inode->i_ino))) - return; - trace_mark_tp(ext4, sync_file, ext4_sync_file, - probe_ext4_sync_file, - "dev %s datasync %d ino %ld parent %ld", - dentry->d_inode->i_sb->s_id, datasync, dentry->d_inode->i_ino, - dentry->d_parent->d_inode->i_ino); -} - -void probe_ext4_sync_fs(void *data, struct super_block *sb, int wait) -{ - if (unlikely(!do_dev_filter(sb->s_id))) - return; - trace_mark_tp(ext4, sync_fs, ext4_sync_fs, - probe_ext4_sync_fs, - "dev %s wait %d", - sb->s_id, wait); -} - -static void free_dev_filter(struct rcu_head *head) -{ - kfree(container_of(head, struct rcu_dev_filter, rcu)); -} - -static ssize_t dev_filter_op_write(struct file *file, - const char __user *user_buf, size_t count, loff_t *ppos) -{ - int err = 0; - char buf[NAME_MAX]; - int buf_size; - char name[NAME_MAX]; - struct rcu_dev_filter *new, *old; - - mutex_lock(&ext4_filter_mutex); - if (module_exits) { - err = -EPERM; - goto error; - } - buf_size = min(count, sizeof(buf) - 1); - err = copy_from_user(buf, user_buf, buf_size); - if (err) - goto error; - buf[buf_size] = 0; - - if (sscanf(buf, "%s", name) != 1) { - err = -EPERM; - goto error; - } - - old = dev_filter; - - /* Empty string or * means all active */ - if (name[0] == '\0' || (name[0] == '*' && name[1] == '\0')) { - new = NULL; - } else { - new = kmalloc(sizeof(*new), GFP_KERNEL); - strcpy(new->devname, name); - } - - rcu_assign_pointer(dev_filter, new); - if (old) - call_rcu_sched(&old->rcu, free_dev_filter); - - mutex_unlock(&ext4_filter_mutex); - return count; - -error: - mutex_unlock(&ext4_filter_mutex); - return err; -} - -static ssize_t dev_filter_op_read(struct file *filp, char __user *buffer, - size_t count, loff_t *ppos) -{ - ssize_t bcount; - const char *devname; - - mutex_lock(&ext4_filter_mutex); - if (!dev_filter) - devname = "*"; - else - devname = dev_filter->devname; - bcount = simple_read_from_buffer(buffer, count, ppos, - devname, strlen(devname)); - mutex_unlock(&ext4_filter_mutex); - return bcount; -} - -static struct file_operations ext4_dev_file_operations = { - .write = dev_filter_op_write, - .read = dev_filter_op_read, -}; - -static ssize_t inode_filter_op_write(struct file *file, - const char __user *user_buf, size_t count, loff_t *ppos) -{ - int err = 0; - char buf[NAME_MAX]; - int buf_size; - char name[NAME_MAX]; - unsigned long inode_num; - - mutex_lock(&ext4_filter_mutex); - if (module_exits) { - err = -EPERM; - goto error; - } - buf_size = min(count, sizeof(buf) - 1); - err = copy_from_user(buf, user_buf, buf_size); - if (err) - goto error; - buf[buf_size] = 0; - - if (sscanf(buf, "%s", name) != 1) { - err = -EPERM; - goto error; - } - - /* Empty string or * means all active */ - if (name[0] == '\0' || (name[0] == '*' && name[1] == '\0')) { - inode_filter = ~0UL; - } else { - if (sscanf(buf, "%lu", &inode_num) != 1) { - err = -EPERM; - goto error; - } - inode_filter = inode_num; - } - - mutex_unlock(&ext4_filter_mutex); - return count; - -error: - mutex_unlock(&ext4_filter_mutex); - return err; -} - -static ssize_t inode_filter_op_read(struct file *filp, char __user *buffer, - size_t count, loff_t *ppos) -{ - ssize_t bcount; - char inode_str[NAME_MAX]; - - mutex_lock(&ext4_filter_mutex); - if (inode_filter == ~0UL) - strcpy(inode_str, "*"); - else { - bcount = snprintf(inode_str, sizeof(inode_str), "%lu", - inode_filter); - if (bcount == sizeof(inode_str)) - bcount = -ENOSPC; - if (bcount < 0) - goto end; - } - bcount = simple_read_from_buffer(buffer, count, ppos, - inode_str, strlen(inode_str)); -end: - mutex_unlock(&ext4_filter_mutex); - return bcount; -} - -static struct file_operations ext4_inode_file_operations = { - .write = inode_filter_op_write, - .read = inode_filter_op_read, -}; - -static void release_filter_dev(void) -{ - struct rcu_dev_filter *old; - - mutex_lock(&ext4_filter_mutex); - module_exits = 1; - old = dev_filter; - rcu_assign_pointer(dev_filter, NULL); - if (old) - call_rcu_sched(&old->rcu, free_dev_filter); - mutex_unlock(&ext4_filter_mutex); -} - -static int __init filter_init(void) -{ - struct dentry *filter_root_dentry; - int err = 0; - - filter_root_dentry = get_filter_root(); - if (!filter_root_dentry) { - err = -ENOENT; - goto end; - } - - ext4_filter_dentry = debugfs_create_dir("ext4", filter_root_dentry); - - if (IS_ERR(ext4_filter_dentry) || !ext4_filter_dentry) { - printk(KERN_ERR "Failed to create ext4 filter file\n"); - err = -ENOMEM; - goto end; - } - - ext4_filter_dev_dentry = debugfs_create_file("dev", S_IWUSR, - ext4_filter_dentry, NULL, &ext4_dev_file_operations); - if (IS_ERR(ext4_filter_dev_dentry) || !ext4_filter_dev_dentry) { - printk(KERN_ERR "Failed to create ext4 dev filter file\n"); - err = -ENOMEM; - goto release_filter_dentry; - } - - ext4_filter_inode_dentry = debugfs_create_file("inode", S_IWUSR, - ext4_filter_dentry, NULL, &ext4_inode_file_operations); - if (IS_ERR(ext4_filter_inode_dentry) || !ext4_filter_inode_dentry) { - printk(KERN_ERR "Failed to create ext4 inode filter file\n"); - err = -ENOMEM; - goto release_filter_dev_dentry; - } - - goto end; - -release_filter_dev_dentry: - debugfs_remove(ext4_filter_dev_dentry); -release_filter_dentry: - debugfs_remove(ext4_filter_dentry); - release_filter_dev(); -end: - return err; -} - -static void __exit filter_exit(void) -{ - debugfs_remove(ext4_filter_dev_dentry); - debugfs_remove(ext4_filter_inode_dentry); - debugfs_remove(ext4_filter_dentry); - release_filter_dev(); -} - -module_init(filter_init); -module_exit(filter_exit); - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("ext4 Tracepoint Probes"); diff --git a/probes/fs-trace.c b/probes/fs-trace.c deleted file mode 100644 index bca28275..00000000 --- a/probes/fs-trace.c +++ /dev/null @@ -1,158 +0,0 @@ -/* - * ltt/probes/fs-trace.c - * - * FS tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include -#include - -#include "../ltt-type-serializer.h" - -void probe_fs_buffer_wait_start(void *_data, struct buffer_head *bh) -{ - trace_mark_tp(fs, buffer_wait_start, fs_buffer_wait_start, - probe_fs_buffer_wait_start, "bh %p", bh); -} - -void probe_fs_buffer_wait_end(void *_data, struct buffer_head *bh) -{ - trace_mark_tp(fs, buffer_wait_end, fs_buffer_wait_end, - probe_fs_buffer_wait_end, "bh %p", bh); -} - -void probe_fs_exec(void *_data, char *filename) -{ - trace_mark_tp(fs, exec, fs_exec, probe_fs_exec, "filename %s", - filename); -} - -void probe_fs_ioctl(void *_data, unsigned int fd, unsigned int cmd, unsigned long arg) -{ - trace_mark_tp(fs, ioctl, fs_ioctl, probe_fs_ioctl, - "fd %u cmd %u arg %lu", fd, cmd, arg); -} - -void probe_fs_open(void *_data, int fd, char *filename) -{ - trace_mark_tp(fs, open, fs_open, probe_fs_open, - "fd %d filename %s", fd, filename); -} - -void probe_fs_close(void *_data, unsigned int fd) -{ - trace_mark_tp(fs, close, fs_close, probe_fs_close, "fd %u", fd); -} - -void probe_fs_lseek(void *_data, unsigned int fd, long offset, unsigned int origin) -{ - trace_mark_tp(fs, lseek, fs_lseek, probe_fs_lseek, - "fd %u offset %ld origin %u", fd, offset, origin); -} - -void probe_fs_llseek(void *_data, unsigned int fd, loff_t offset, unsigned int origin) -{ - trace_mark_tp(fs, llseek, fs_llseek, probe_fs_llseek, - "fd %u offset %lld origin %u", fd, - (long long)offset, origin); -} - -void probe_fs_read(void *_data, unsigned int fd, char __user *buf, size_t count, - ssize_t ret); - -DEFINE_MARKER_TP(fs, read, fs_read, probe_fs_read, - "count %zu fd %u"); - -notrace void probe_fs_read(void *_data, unsigned int fd, char __user *buf, size_t count, - ssize_t ret) -{ - struct marker *marker; - struct serialize_sizet_int data; - - data.f1 = count; - data.f2 = fd; - - marker = &GET_MARKER(fs, read); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(size_t)); -} - -void probe_fs_write(void *_data, unsigned int fd, char __user *buf, size_t count, - ssize_t ret); - -DEFINE_MARKER_TP(fs, write, fs_write, probe_fs_write, - "count %zu fd %u"); - -notrace void probe_fs_write(void *_data, unsigned int fd, char __user *buf, size_t count, - ssize_t ret) -{ - struct marker *marker; - struct serialize_sizet_int data; - - data.f1 = count; - data.f2 = fd; - - marker = &GET_MARKER(fs, write); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(size_t)); -} - -void probe_fs_pread64(void *_data, unsigned int fd, char __user *buf, size_t count, - loff_t pos, ssize_t ret) -{ - trace_mark_tp(fs, pread64, fs_pread64, probe_fs_pread64, - "fd %u count %zu pos %llu", - fd, count, (unsigned long long)pos); -} - -void probe_fs_pwrite64(void *_data, unsigned int fd, const char __user *buf, - size_t count, loff_t pos, ssize_t ret) -{ - trace_mark_tp(fs, pwrite64, fs_pwrite64, probe_fs_pwrite64, - "fd %u count %zu pos %llu", - fd, count, (unsigned long long)pos); -} - -void probe_fs_readv(void *_data, unsigned long fd, const struct iovec __user *vec, - unsigned long vlen, ssize_t ret) -{ - trace_mark_tp(fs, readv, fs_readv, probe_fs_readv, - "fd %lu vlen %lu", fd, vlen); -} - -void probe_fs_writev(void *_data, unsigned long fd, const struct iovec __user *vec, - unsigned long vlen, ssize_t ret) -{ - trace_mark_tp(fs, writev, fs_writev, probe_fs_writev, - "fd %lu vlen %lu", fd, vlen); -} - -void probe_fs_select(void *_data, int fd, struct timespec *end_time) -{ - struct timespec tmptime; - - if (end_time) { - tmptime = *end_time; - } else { - tmptime.tv_sec = -1L; - tmptime.tv_nsec = -1L; - } - - trace_mark_tp(fs, select, fs_select, probe_fs_select, - "fd %d end_time_sec %ld end_time_nsec %ld", fd, - tmptime.tv_sec, tmptime.tv_nsec); -} - -void probe_fs_poll(void *_data, int fd) -{ - trace_mark_tp(fs, pollfd, fs_poll, probe_fs_poll, - "fd %d", fd); -} - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("FS Tracepoint Probes"); diff --git a/probes/ipc-trace.c b/probes/ipc-trace.c deleted file mode 100644 index 3a095252..00000000 --- a/probes/ipc-trace.c +++ /dev/null @@ -1,39 +0,0 @@ -/* - * ltt/probes/ipc-trace.c - * - * IPC tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include - -void probe_ipc_msg_create(void *data, long id, int flags) -{ - trace_mark_tp(ipc, msg_create, ipc_msg_create, probe_ipc_msg_create, - "id %ld flags %d", id, flags); -} - -void probe_ipc_sem_create(void *data, long id, int flags) -{ - trace_mark_tp(ipc, sem_create, ipc_sem_create, probe_ipc_sem_create, - "id %ld flags %d", id, flags); -} - -void probe_ipc_shm_create(void *data, long id, int flags) -{ - trace_mark_tp(ipc, shm_create, ipc_shm_create, probe_ipc_shm_create, - "id %ld flags %d", id, flags); -} - -void probe_ipc_call(void *data, unsigned int call, unsigned int first) -{ - trace_mark_tp(ipc, call, ipc_call, probe_ipc_call, - "call %u first %d", call, first); -} - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("IPC Tracepoint Probes"); diff --git a/probes/jbd2-trace.c b/probes/jbd2-trace.c deleted file mode 100644 index 3da32cd4..00000000 --- a/probes/jbd2-trace.c +++ /dev/null @@ -1,208 +0,0 @@ -/* - * ltt/probes/jbd2-trace.c - * - * JBD2 tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include -#include -#include -#include - -#include "../ltt-tracer.h" - -static struct dentry *jbd2_filter_dentry, *jbd2_filter_dev_dentry; -static DEFINE_MUTEX(jbd2_filter_mutex); -/* Make sure we don't race between module exit and file write */ -static int module_exits; - -struct rcu_dev_filter { - struct rcu_head rcu; - char devname[NAME_MAX]; -}; - -static struct rcu_dev_filter *dev_filter; - -/* - * Probes are executed in rcu_sched read-side critical section. - */ -static int do_filter(const char *dev) -{ - struct rcu_dev_filter *ldev_filter = rcu_dereference(dev_filter); - - if (unlikely(ldev_filter)) - if (unlikely(strcmp(ldev_filter->devname, dev))) - return 0; - return 1; -} - -void probe_jbd2_checkpoint(void *data, journal_t *journal, int result) -{ - if (unlikely(!do_filter(journal->j_devname))) - return; - trace_mark_tp(jbd2, checkpoint, jbd2_checkpoint, - probe_jbd2_checkpoint, "dev %s need_checkpoint %d", - journal->j_devname, result); -} - -void probe_jbd2_start_commit(void *data, journal_t *journal, - transaction_t *commit_transaction) -{ - if (unlikely(!do_filter(journal->j_devname))) - return; - trace_mark_tp(jbd2, start_commit, jbd2_start_commit, - probe_jbd2_start_commit, "dev %s transaction %d", - journal->j_devname, commit_transaction->t_tid); -} - -void probe_jbd2_end_commit(void *data, journal_t *journal, - transaction_t *commit_transaction) -{ - if (unlikely(!do_filter(journal->j_devname))) - return; - trace_mark_tp(jbd2, end_commit, jbd2_end_commit, - probe_jbd2_end_commit, "dev %s transaction %d head %d", - journal->j_devname, commit_transaction->t_tid, - journal->j_tail_sequence); -} - -static void free_dev_filter(struct rcu_head *head) -{ - kfree(container_of(head, struct rcu_dev_filter, rcu)); -} - -static ssize_t filter_op_write(struct file *file, - const char __user *user_buf, size_t count, loff_t *ppos) -{ - int err = 0; - char buf[NAME_MAX]; - int buf_size; - char name[NAME_MAX]; - struct rcu_dev_filter *new, *old; - - mutex_lock(&jbd2_filter_mutex); - if (module_exits) { - err = -EPERM; - goto error; - } - buf_size = min(count, sizeof(buf) - 1); - err = copy_from_user(buf, user_buf, buf_size); - if (err) - goto error; - buf[buf_size] = 0; - - if (sscanf(buf, "%s", name) != 1) { - err = -EPERM; - goto error; - } - - old = dev_filter; - - /* Empty string or * means all active */ - if (name[0] == '\0' || (name[0] == '*' && name[1] == '\0')) { - new = NULL; - } else { - new = kmalloc(sizeof(*new), GFP_KERNEL); - strcpy(new->devname, name); - } - - rcu_assign_pointer(dev_filter, new); - if (old) - call_rcu_sched(&old->rcu, free_dev_filter); - - mutex_unlock(&jbd2_filter_mutex); - return count; - -error: - mutex_unlock(&jbd2_filter_mutex); - return err; -} - -static ssize_t filter_op_read(struct file *filp, char __user *buffer, - size_t count, loff_t *ppos) -{ - ssize_t bcount; - const char *devname; - - mutex_lock(&jbd2_filter_mutex); - if (!dev_filter) - devname = "*"; - else - devname = dev_filter->devname; - bcount = simple_read_from_buffer(buffer, count, ppos, - devname, strlen(devname)); - mutex_unlock(&jbd2_filter_mutex); - return bcount; -} - -static struct file_operations jbd2_file_operations = { - .write = filter_op_write, - .read = filter_op_read, -}; - -static void release_filter_dev(void) -{ - struct rcu_dev_filter *old; - - mutex_lock(&jbd2_filter_mutex); - module_exits = 1; - old = dev_filter; - rcu_assign_pointer(dev_filter, NULL); - if (old) - call_rcu_sched(&old->rcu, free_dev_filter); - mutex_unlock(&jbd2_filter_mutex); -} - -static int __init filter_init(void) -{ - struct dentry *filter_root_dentry; - int err = 0; - - filter_root_dentry = get_filter_root(); - if (!filter_root_dentry) { - err = -ENOENT; - goto end; - } - - jbd2_filter_dentry = debugfs_create_dir("jbd2", filter_root_dentry); - - if (IS_ERR(jbd2_filter_dentry) || !jbd2_filter_dentry) { - printk(KERN_ERR "Failed to create jbd2 filter file\n"); - err = -ENOMEM; - goto end; - } - - jbd2_filter_dev_dentry = debugfs_create_file("dev", S_IWUSR, - jbd2_filter_dentry, NULL, &jbd2_file_operations); - if (IS_ERR(jbd2_filter_dentry) || !jbd2_filter_dentry) { - printk(KERN_ERR "Failed to create jbd2 filter file\n"); - err = -ENOMEM; - goto release_filter_dentry; - } - - goto end; - -release_filter_dentry: - debugfs_remove(jbd2_filter_dentry); - release_filter_dev(); -end: - return err; -} - -static void __exit filter_exit(void) -{ - debugfs_remove(jbd2_filter_dev_dentry); - debugfs_remove(jbd2_filter_dentry); - release_filter_dev(); -} - -module_init(filter_init); -module_exit(filter_exit); - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("JBD2 Tracepoint Probes"); diff --git a/probes/kernel-trace.c b/probes/kernel-trace.c deleted file mode 100644 index cabe60e1..00000000 --- a/probes/kernel-trace.c +++ /dev/null @@ -1,581 +0,0 @@ -/* - * ltt/probes/kernel-trace.c - * - * kernel tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "../ltt-tracer.h" -#include "../ltt-type-serializer.h" - -/* - * This should probably be added to s390. - */ -#ifdef CONFIG_S390 -static struct pt_regs *get_irq_regs(void) -{ - return task_pt_regs(current); -} -#endif - -/* - * FIXME : - * currently, the specialized tracepoint probes cannot call into other marker - * probes, such as ftrace enable/disable. Given we want them to be as fast as - * possible, it might not be so bad to lose this flexibility. But that means - * such probes would have to connect to tracepoints on their own. - */ - -/* kernel_irq_entry specialized tracepoint probe */ - -void probe_irq_entry(void *_data, unsigned int id, struct pt_regs *regs, - struct irqaction *action); - -DEFINE_MARKER_TP(kernel, irq_entry, irq_entry, probe_irq_entry, - "ip %lu handler %p irq_id #2u%u kernel_mode #1u%u"); - -notrace void probe_irq_entry(void *_data, unsigned int id, struct pt_regs *regs, - struct irqaction *action) -{ - struct marker *marker; - struct serialize_long_long_short_char data; - - if (unlikely(!regs)) - regs = get_irq_regs(); - if (likely(regs)) { - data.f1 = instruction_pointer(regs); - data.f4 = !user_mode(regs); - } else { - data.f1 = 0UL; - data.f4 = 1; - } - data.f2 = (unsigned long) (action ? action->handler : NULL); - data.f3 = id; - - marker = &GET_MARKER(kernel, irq_entry); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -void probe_irq_next_handler(void *_data, unsigned int id, struct irqaction *action, - irqreturn_t prev_ret); - -DEFINE_MARKER_TP(kernel, irq_next_handler, irq_next_handler, - probe_irq_next_handler, - "handler %p prev_ret #1u%u"); - -notrace void probe_irq_next_handler(void *_data, unsigned int id, struct irqaction *action, - irqreturn_t prev_ret) -{ - struct marker *marker; - struct serialize_long_char data; - - data.f1 = (unsigned long) (action ? action->handler : NULL); - data.f2 = prev_ret; - - marker = &GET_MARKER(kernel, irq_next_handler); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -/* kernel_irq_exit specialized tracepoint probe */ - -void probe_irq_exit(void *_data, irqreturn_t retval); - -DEFINE_MARKER_TP(kernel, irq_exit, irq_exit, probe_irq_exit, - "handled #1u%u"); - -notrace void probe_irq_exit(void *_data, irqreturn_t retval) -{ - struct marker *marker; - unsigned char data; - - data = IRQ_RETVAL(retval); - - marker = &GET_MARKER(kernel, irq_exit); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, sizeof(data), sizeof(data)); -} - -/* kernel_softirq_entry specialized tracepoint probe */ - -void probe_softirq_entry(void *_data, struct softirq_action *h, - struct softirq_action *softirq_vec); - -DEFINE_MARKER_TP(kernel, softirq_entry, softirq_entry, - probe_softirq_entry, "softirq_id #1u%lu"); - -notrace void probe_softirq_entry(void *_data, struct softirq_action *h, - struct softirq_action *softirq_vec) -{ - struct marker *marker; - unsigned char data; - - data = ((unsigned long)h - (unsigned long)softirq_vec) / sizeof(*h); - - marker = &GET_MARKER(kernel, softirq_entry); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, sizeof(data), sizeof(data)); -} - -/* kernel_softirq_exit specialized tracepoint probe */ - -void probe_softirq_exit(void *_data, struct softirq_action *h, - struct softirq_action *softirq_vec); - -DEFINE_MARKER_TP(kernel, softirq_exit, softirq_exit, - probe_softirq_exit, "softirq_id #1u%lu"); - -notrace void probe_softirq_exit(void *_data, struct softirq_action *h, - struct softirq_action *softirq_vec) -{ - struct marker *marker; - unsigned char data; - - data = ((unsigned long)h - (unsigned long)softirq_vec) / sizeof(*h); - - marker = &GET_MARKER(kernel, softirq_exit); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, sizeof(data), sizeof(data)); -} - -/* kernel_softirq_raise specialized tracepoint probe */ - -void probe_softirq_raise(void *_data, unsigned int nr); - -DEFINE_MARKER_TP(kernel, softirq_raise, softirq_raise, - probe_softirq_raise, "softirq_id #1u%u"); - -notrace void probe_softirq_raise(void *_data, unsigned int nr) -{ - struct marker *marker; - unsigned char data; - - data = nr; - - marker = &GET_MARKER(kernel, softirq_raise); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, sizeof(data), sizeof(data)); -} - -/* Standard probes */ -void probe_irq_tasklet_low_entry(void *_data, struct tasklet_struct *t) -{ - trace_mark_tp(kernel, tasklet_low_entry, irq_tasklet_low_entry, - probe_irq_tasklet_low_entry, "func %p data %lu", - t->func, t->data); -} - -void probe_irq_tasklet_low_exit(void *_data, struct tasklet_struct *t) -{ - trace_mark_tp(kernel, tasklet_low_exit, irq_tasklet_low_exit, - probe_irq_tasklet_low_exit, "func %p data %lu", - t->func, t->data); -} - -void probe_irq_tasklet_high_entry(void *_data, struct tasklet_struct *t) -{ - trace_mark_tp(kernel, tasklet_high_entry, irq_tasklet_high_entry, - probe_irq_tasklet_high_entry, "func %p data %lu", - t->func, t->data); -} - -void probe_irq_tasklet_high_exit(void *_data, struct tasklet_struct *t) -{ - trace_mark_tp(kernel, tasklet_high_exit, irq_tasklet_high_exit, - probe_irq_tasklet_high_exit, "func %p data %lu", - t->func, t->data); -} - -void probe_sched_kthread_stop(void *_data, struct task_struct *t) -{ - trace_mark_tp(kernel, kthread_stop, sched_kthread_stop, - probe_sched_kthread_stop, "pid %d", t->pid); -} - -void probe_sched_kthread_stop_ret(void *_data, int ret) -{ - trace_mark_tp(kernel, kthread_stop_ret, sched_kthread_stop_ret, - probe_sched_kthread_stop_ret, "ret %d", ret); -} - -void probe_sched_wait_task(void *_data, struct task_struct *p) -{ - trace_mark_tp(kernel, sched_wait_task, sched_wait_task, - probe_sched_wait_task, "pid %d state #2d%ld", - p->pid, p->state); -} - -/* kernel_sched_try_wakeup specialized tracepoint probe */ - -void probe_sched_wakeup(void *_data, struct task_struct *p, int success); - -DEFINE_MARKER_TP(kernel, sched_try_wakeup, sched_wakeup, - probe_sched_wakeup, "pid %d cpu_id %u state #2d%ld"); - -notrace void probe_sched_wakeup(void *_data, struct task_struct *p, int success) -{ - struct marker *marker; - struct serialize_int_int_short data; - - data.f1 = p->pid; - data.f2 = task_cpu(p); - data.f3 = p->state; - - marker = &GET_MARKER(kernel, sched_try_wakeup); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(int)); -} - -void probe_sched_wakeup_new(void *_data, struct task_struct *p, int success) -{ - trace_mark_tp(kernel, sched_wakeup_new_task, sched_wakeup_new, - probe_sched_wakeup_new, "pid %d state #2d%ld cpu_id %u", - p->pid, p->state, task_cpu(p)); -} - -/* kernel_sched_schedule specialized tracepoint probe */ - -void probe_sched_switch(void *_data, struct task_struct *prev, - struct task_struct *next); - -DEFINE_MARKER_TP(kernel, sched_schedule, sched_switch, probe_sched_switch, - "prev_pid %d next_pid %d prev_state #2d%ld"); - -notrace void probe_sched_switch(void *_data, struct task_struct *prev, - struct task_struct *next) -{ - struct marker *marker; - struct serialize_int_int_short data; - - data.f1 = prev->pid; - data.f2 = next->pid; - data.f3 = prev->state; - - marker = &GET_MARKER(kernel, sched_schedule); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(int)); -} - -void probe_sched_migrate_task(void *_data, struct task_struct *p, int dest_cpu) -{ - trace_mark_tp(kernel, sched_migrate_task, sched_migrate_task, - probe_sched_migrate_task, "pid %d state #2d%ld dest_cpu %d", - p->pid, p->state, dest_cpu); -} - -void probe_sched_signal_send(void *_data, int sig, struct siginfo *info, struct task_struct *t) -{ - trace_mark_tp(kernel, send_signal, signal_generate, - probe_sched_signal_send, "pid %d signal %d", t->pid, sig); -} - -void probe_sched_process_free(void *_data, struct task_struct *p) -{ - trace_mark_tp(kernel, process_free, sched_process_free, - probe_sched_process_free, "pid %d", p->pid); -} - -void probe_sched_process_exit(void *_data, struct task_struct *p) -{ - trace_mark_tp(kernel, process_exit, sched_process_exit, - probe_sched_process_exit, "pid %d", p->pid); -} - -void probe_sched_process_wait(void *_data, struct pid *pid) -{ - trace_mark_tp(kernel, process_wait, sched_process_wait, - probe_sched_process_wait, "pid %d", pid_nr(pid)); -} - -void probe_sched_process_fork(void *_data, struct task_struct *parent, - struct task_struct *child) -{ - trace_mark_tp(kernel, process_fork, sched_process_fork, - probe_sched_process_fork, - "parent_pid %d child_pid %d child_tgid %d", - parent->pid, child->pid, child->tgid); -} - -void probe_sched_kthread_create(void *_data, void *fn, int pid) -{ - trace_mark_tp(kernel, kthread_create, sched_kthread_create, - probe_sched_kthread_create, - "fn %p pid %d", fn, pid); -} - -void probe_timer_itimer_expired(void *_data, struct signal_struct *sig) -{ - trace_mark_tp(kernel, timer_itimer_expired, timer_itimer_expired, - probe_timer_itimer_expired, "pid %d", - pid_nr(sig->leader_pid)); -} - -void probe_timer_itimer_set(void *_data, int which, struct itimerval *value) -{ - trace_mark_tp(kernel, timer_itimer_set, - timer_itimer_set, probe_timer_itimer_set, - "which %d interval_sec %ld interval_usec %ld " - "value_sec %ld value_usec %ld", - which, - value->it_interval.tv_sec, - value->it_interval.tv_usec, - value->it_value.tv_sec, - value->it_value.tv_usec); -} - -/* kernel_timer_set specialized tracepoint probe */ - -void probe_timer_set(void *_data, struct timer_list *timer); - -DEFINE_MARKER_TP(kernel, timer_set, timer_set, probe_timer_set, - "expires %lu function %p data %lu"); - -notrace void probe_timer_set(void *_data, struct timer_list *timer) -{ - struct marker *marker; - struct serialize_long_long_long data; - - data.f1 = timer->expires; - data.f2 = (unsigned long)timer->function; - data.f3 = timer->data; - - marker = &GET_MARKER(kernel, timer_set); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -void probe_timer_update_time(void *_data, struct timespec *_xtime, - struct timespec *_wall_to_monotonic) -{ - trace_mark_tp(kernel, timer_update_time, timer_update_time, - probe_timer_update_time, - "jiffies #8u%llu xtime_sec %ld xtime_nsec %ld " - "walltomonotonic_sec %ld walltomonotonic_nsec %ld", - (unsigned long long)jiffies_64, _xtime->tv_sec, _xtime->tv_nsec, - _wall_to_monotonic->tv_sec, _wall_to_monotonic->tv_nsec); -} - -void probe_timer_timeout(void *_data, struct task_struct *p) -{ - trace_mark_tp(kernel, timer_timeout, timer_timeout, - probe_timer_timeout, "pid %d", p->pid); -} - -void probe_kernel_printk(void *_data, unsigned long retaddr) -{ - trace_mark_tp(kernel, printk, kernel_printk, - probe_kernel_printk, "ip 0x%lX", retaddr); -} - -void probe_kernel_vprintk(void *_data, unsigned long retaddr, char *buf, int len) -{ - if (len > 0) { - unsigned int loglevel; - int mark_len; - char *mark_buf; - char saved_char; - - if (buf[0] == '<' && buf[1] >= '0' && - buf[1] <= '7' && buf[2] == '>') { - loglevel = buf[1] - '0'; - mark_buf = &buf[3]; - mark_len = len - 3; - } else { - loglevel = default_message_loglevel; - mark_buf = buf; - mark_len = len; - } - if (mark_buf[mark_len - 1] == '\n') - mark_len--; - saved_char = mark_buf[mark_len]; - mark_buf[mark_len] = '\0'; - trace_mark_tp(kernel, vprintk, kernel_vprintk, - probe_kernel_vprintk, - "loglevel #1u%u string %s ip 0x%lX", - loglevel, mark_buf, retaddr); - mark_buf[mark_len] = saved_char; - } -} - -#ifdef CONFIG_MODULES -void probe_kernel_module_free(void *_data, struct module *mod) -{ - trace_mark_tp(kernel, module_free, kernel_module_free, - probe_kernel_module_free, "name %s", mod->name); -} - -void probe_kernel_module_load(void *_data, struct module *mod) -{ - trace_mark_tp(kernel, module_load, kernel_module_load, - probe_kernel_module_load, "name %s", mod->name); -} -#endif - -void probe_kernel_panic(void *_data, const char *fmt, va_list args) -{ - char info[64]; - vsnprintf(info, sizeof(info), fmt, args); - trace_mark_tp(kernel, panic, kernel_panic, probe_kernel_panic, - "info %s", info); -} - -void probe_kernel_kernel_kexec(void *_data, struct kimage *image) -{ - trace_mark_tp(kernel, kernel_kexec, kernel_kernel_kexec, - probe_kernel_kernel_kexec, "image %p", image); -} - -void probe_kernel_crash_kexec(void *_data, struct kimage *image, struct pt_regs *regs) -{ - trace_mark_tp(kernel, crash_kexec, kernel_crash_kexec, - probe_kernel_crash_kexec, "image %p ip %p", image, - regs ? (void *)instruction_pointer(regs) : NULL); -} - -/* kernel_page_fault_entry specialized tracepoint probe */ - -void probe_kernel_page_fault_entry(void *_data, struct pt_regs *regs, int trapnr, - struct mm_struct *mm, struct vm_area_struct *vma, - unsigned long address, int write_access); - -DEFINE_MARKER_TP(kernel, page_fault_entry, page_fault_entry, - probe_kernel_page_fault_entry, - "ip #p%lu address #p%lu trap_id #2u%u write_access #1u%u"); - -notrace void probe_kernel_page_fault_entry(void *_data, struct pt_regs *regs, int trapnr, - struct mm_struct *mm, struct vm_area_struct *vma, - unsigned long address, int write_access) -{ - struct marker *marker; - struct serialize_long_long_short_char data; - - if (likely(regs)) - data.f1 = instruction_pointer(regs); - else - data.f1 = 0UL; - data.f2 = address; - data.f3 = (unsigned short)trapnr; - data.f4 = (unsigned char)!!write_access; - - marker = &GET_MARKER(kernel, page_fault_entry); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -/* kernel_page_fault_exit specialized tracepoint probe */ - -void probe_kernel_page_fault_exit(void *_data, int res); - -DEFINE_MARKER_TP(kernel, page_fault_exit, page_fault_exit, - probe_kernel_page_fault_exit, - "res %d"); - -notrace void probe_kernel_page_fault_exit(void *_data, int res) -{ - struct marker *marker; - - marker = &GET_MARKER(kernel, page_fault_exit); - ltt_specialized_trace(marker, marker->single.probe_private, - &res, sizeof(res), sizeof(res)); -} - -/* kernel_page_fault_nosem_entry specialized tracepoint probe */ - -void probe_kernel_page_fault_nosem_entry(void *_data, struct pt_regs *regs, - int trapnr, unsigned long address); - -DEFINE_MARKER_TP(kernel, page_fault_nosem_entry, page_fault_nosem_entry, - probe_kernel_page_fault_nosem_entry, - "ip #p%lu address #p%lu trap_id #2u%u"); - -notrace void probe_kernel_page_fault_nosem_entry(void *_data, struct pt_regs *regs, - int trapnr, unsigned long address) -{ - struct marker *marker; - struct serialize_long_long_short data; - - if (likely(regs)) - data.f1 = instruction_pointer(regs); - else - data.f1 = 0UL; - data.f2 = address; - data.f3 = (unsigned short)trapnr; - - marker = &GET_MARKER(kernel, page_fault_nosem_entry); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -/* kernel_page_fault_nosem_exit specialized tracepoint probe */ - -void probe_kernel_page_fault_nosem_exit(void *_data, int res); - -DEFINE_MARKER_TP(kernel, page_fault_nosem_exit, page_fault_nosem_exit, - probe_kernel_page_fault_nosem_exit, - MARK_NOARGS); - -notrace void probe_kernel_page_fault_nosem_exit(void *_data, int res) -{ - struct marker *marker; - - marker = &GET_MARKER(kernel, page_fault_nosem_exit); - ltt_specialized_trace(marker, marker->single.probe_private, - NULL, 0, 0); -} - -/* kernel_page_fault_get_user_entry specialized tracepoint probe */ - -void probe_kernel_page_fault_get_user_entry(void *_data, struct mm_struct *mm, - struct vm_area_struct *vma, unsigned long address, int write_access); - -DEFINE_MARKER_TP(kernel, page_fault_get_user_entry, page_fault_get_user_entry, - probe_kernel_page_fault_get_user_entry, - "address #p%lu write_access #1u%u"); - -notrace void probe_kernel_page_fault_get_user_entry(void *_data, struct mm_struct *mm, - struct vm_area_struct *vma, unsigned long address, int write_access) -{ - struct marker *marker; - struct serialize_long_char data; - - data.f1 = address; - data.f2 = (unsigned char)!!write_access; - - marker = &GET_MARKER(kernel, page_fault_get_user_entry); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -/* kernel_page_fault_get_user_exit specialized tracepoint probe */ - -void probe_kernel_page_fault_get_user_exit(void *_data, int res); - -DEFINE_MARKER_TP(kernel, page_fault_get_user_exit, page_fault_get_user_exit, - probe_kernel_page_fault_get_user_exit, - "res %d"); - -notrace void probe_kernel_page_fault_get_user_exit(void *_data, int res) -{ - struct marker *marker; - - marker = &GET_MARKER(kernel, page_fault_get_user_exit); - ltt_specialized_trace(marker, marker->single.probe_private, - &res, sizeof(res), sizeof(res)); -} - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("kernel Tracepoint Probes"); diff --git a/probes/lockdep-trace.c b/probes/lockdep-trace.c deleted file mode 100644 index a9a77344..00000000 --- a/probes/lockdep-trace.c +++ /dev/null @@ -1,60 +0,0 @@ -/* - * ltt/probes/lockdep-trace.c - * - * lockdep tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include -#include - -void probe_lockdep_hardirqs_on(void *data, unsigned long retaddr) -{ - trace_mark_tp(lockdep, hardirqs_on, lockdep_hardirqs_on, - probe_lockdep_hardirqs_on, "retaddr 0x%lX", retaddr); -} - -void probe_lockdep_hardirqs_off(void *data, unsigned long retaddr) -{ - trace_mark_tp(lockdep, hardirqs_off, lockdep_hardirqs_off, - probe_lockdep_hardirqs_off, "retaddr 0x%lX", retaddr); -} - -void probe_lockdep_softirqs_on(void *data, unsigned long retaddr) -{ - trace_mark_tp(lockdep, softirqs_on, lockdep_softirqs_on, - probe_lockdep_softirqs_on, "retaddr 0x%lX", retaddr); -} - -void probe_lockdep_softirqs_off(void *data, unsigned long retaddr) -{ - trace_mark_tp(lockdep, softirqs_off, lockdep_softirqs_off, - probe_lockdep_softirqs_off, "retaddr 0x%lX", retaddr); -} - -void probe_lockdep_lock_acquire(void *data, unsigned long retaddr, - unsigned int subclass, struct lockdep_map *lock, int trylock, - int read, int hardirqs_off) -{ - trace_mark_tp(lockdep, lock_acquire, lockdep_lock_acquire, - probe_lockdep_lock_acquire, - "retaddr 0x%lX subclass %u lock %p trylock %d read %d " - "hardirqs_off %d", - retaddr, subclass, lock, trylock, read, hardirqs_off); -} - -void probe_lockdep_lock_release(void *data, unsigned long retaddr, - struct lockdep_map *lock, int nested) -{ - trace_mark_tp(lockdep, lock_release, lockdep_lock_release, - probe_lockdep_lock_release, - "retaddr 0x%lX lock %p nested %d", - retaddr, lock, nested); -} - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("lockdep Tracepoint Probes"); diff --git a/probes/mm-trace.c b/probes/mm-trace.c deleted file mode 100644 index 935e366c..00000000 --- a/probes/mm-trace.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * ltt/probes/mm-trace.c - * - * MM tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -#include "../ltt-type-serializer.h" - -void probe_wait_on_page_start(void *_data, struct page *page, int bit_nr) -{ - trace_mark_tp(mm, wait_on_page_start, wait_on_page_start, - probe_wait_on_page_start, "pfn %lu bit_nr %d", - page_to_pfn(page), bit_nr); -} - -void probe_wait_on_page_end(void *_data, struct page *page, int bit_nr) -{ - trace_mark_tp(mm, wait_on_page_end, wait_on_page_end, - probe_wait_on_page_end, "pfn %lu bit_nr %d", - page_to_pfn(page), bit_nr); -} - -void probe_hugetlb_page_free(void *_data, struct page *page) -{ - trace_mark_tp(mm, huge_page_free, hugetlb_page_free, - probe_hugetlb_page_free, "pfn %lu", page_to_pfn(page)); -} - -void probe_hugetlb_page_alloc(void *_data, struct page *page) -{ - if (page) - trace_mark_tp(mm, huge_page_alloc, hugetlb_page_alloc, - probe_hugetlb_page_alloc, "pfn %lu", page_to_pfn(page)); -} - -/* mm_page_free specialized tracepoint probe */ - -void probe_page_free(void *_data, struct page *page, unsigned int order); - -DEFINE_MARKER_TP(mm, page_free, page_free, probe_page_free, - "pfn %lu order %u"); - -notrace void probe_page_free(void *_data, struct page *page, unsigned int order) -{ - struct marker *marker; - struct serialize_long_int data; - - data.f1 = page_to_pfn(page); - data.f2 = order; - - marker = &GET_MARKER(mm, page_free); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -/* mm_page_alloc specialized tracepoint probe */ - -void probe_page_alloc(void *_data, struct page *page, unsigned int order); - -DEFINE_MARKER_TP(mm, page_alloc, page_alloc, probe_page_alloc, - "pfn %lu order %u"); - -notrace void probe_page_alloc(void *_data, struct page *page, unsigned int order) -{ - struct marker *marker; - struct serialize_long_int data; - - if (unlikely(!page)) - return; - - data.f1 = page_to_pfn(page); - data.f2 = order; - - marker = &GET_MARKER(mm, page_alloc); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -#ifdef CONFIG_SWAP -void probe_swap_in(void *_data, struct page *page, swp_entry_t entry) -{ - trace_mark_tp(mm, swap_in, swap_in, probe_swap_in, - "pfn %lu filp %p offset %lu", - page_to_pfn(page), - get_swap_info_struct(swp_type(entry))->swap_file, - swp_offset(entry)); -} - -void probe_swap_out(void *_data, struct page *page) -{ - trace_mark_tp(mm, swap_out, swap_out, probe_swap_out, - "pfn %lu filp %p offset %lu", - page_to_pfn(page), - get_swap_info_struct(swp_type( - page_swp_entry(page)))->swap_file, - swp_offset(page_swp_entry(page))); -} - -void probe_swap_file_close(void *_data, struct file *file) -{ - trace_mark_tp(mm, swap_file_close, swap_file_close, - probe_swap_file_close, "filp %p", file); -} - -void probe_swap_file_open(void *_data, struct file *file, char *filename) -{ - trace_mark_tp(mm, swap_file_open, swap_file_open, - probe_swap_file_open, "filp %p filename %s", - file, filename); -} -#endif - -void probe_add_to_page_cache(void *_data, struct address_space *mapping, pgoff_t offset) -{ - trace_mark_tp(mm, add_to_page_cache, add_to_page_cache, - probe_add_to_page_cache, - "inode %lu sdev %u", - mapping->host->i_ino, mapping->host->i_sb->s_dev); -} - -void probe_remove_from_page_cache(void *_data, struct address_space *mapping) -{ - trace_mark_tp(mm, remove_from_page_cache, remove_from_page_cache, - probe_remove_from_page_cache, - "inode %lu sdev %u", - mapping->host->i_ino, mapping->host->i_sb->s_dev); -} - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("MM Tracepoint Probes"); diff --git a/probes/net-extended-trace.c b/probes/net-extended-trace.c deleted file mode 100644 index 15fc8109..00000000 --- a/probes/net-extended-trace.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * ltt/probes/net-extended-trace.c - * - * Net tracepoint extended probes. - * - * These probes record many header fields from TCP and UDP messages. Here are - * the consequences of this: - * 1) it allows analyzing network traffic to provide some pcap-like - * functionality within LTTng - * 2) it allows offline synchronization of a group of concurrent traces - * recorded on different nodes - * 3) it increases tracing overhead - * - * You can leave out these probes or not activate them if you are not - * especially interested in the details of network traffic and do not wish to - * synchronize distributed traces. - * - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include -#include -#include -#include -#include -#include - -#include "../ltt-type-serializer.h" - -void probe_net_dev_xmit_extended(void *_data, struct sk_buff *skb); - -DEFINE_MARKER_TP(net, dev_xmit_extended, net_dev_xmit, - probe_net_dev_xmit_extended, "skb 0x%lX network_protocol #n2u%hu " - "transport_protocol #1u%u saddr #n4u%lu daddr #n4u%lu " - "tot_len #n2u%hu ihl #1u%u source #n2u%hu dest #n2u%hu seq #n4u%lu " - "ack_seq #n4u%lu doff #1u%u ack #1u%u rst #1u%u syn #1u%u fin #1u%u"); - -notrace void probe_net_dev_xmit_extended(void *_data, struct sk_buff *skb) -{ - struct marker *marker; - struct serialize_l214421224411111 data; - struct iphdr *iph = ip_hdr(skb); - struct tcphdr *th = tcp_hdr(skb); - - data.f1 = (unsigned long)skb; - data.f2 = skb->protocol; - - if (ntohs(skb->protocol) == ETH_P_IP) { - data.f3 = ip_hdr(skb)->protocol; - data.f4 = iph->saddr; - data.f5 = iph->daddr; - data.f6 = iph->tot_len; - data.f7 = iph->ihl; - - if (data.f3 == IPPROTO_TCP) { - data.f8 = th->source; - data.f9 = th->dest; - data.f10 = th->seq; - data.f11 = th->ack_seq; - data.f12 = th->doff; - data.f13 = th->ack; - data.f14 = th->rst; - data.f15 = th->syn; - data.f16 = th->fin; - } - } - - marker = &GET_MARKER(net, dev_xmit_extended); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -void probe_tcpv4_rcv_extended(void *_data, struct sk_buff *skb); - -DEFINE_MARKER_TP(net, tcpv4_rcv_extended, net_tcpv4_rcv, - probe_tcpv4_rcv_extended, "skb 0x%lX saddr #n4u%lu daddr #n4u%lu " - "tot_len #n2u%hu ihl #1u%u source #n2u%hu dest #n2u%hu seq #n4u%lu " - "ack_seq #n4u%lu doff #1u%u ack #1u%u rst #1u%u syn #1u%u fin #1u%u"); - -notrace void probe_tcpv4_rcv_extended(void *_data, struct sk_buff *skb) -{ - struct marker *marker; - struct serialize_l4421224411111 data; - struct iphdr *iph = ip_hdr(skb); - struct tcphdr *th = tcp_hdr(skb); - - data.f1 = (unsigned long)skb; - data.f2 = iph->saddr; - data.f3 = iph->daddr; - data.f4 = iph->tot_len; - data.f5 = iph->ihl; - data.f6 = th->source; - data.f7 = th->dest; - data.f8 = th->seq; - data.f9 = th->ack_seq; - data.f10 = th->doff; - data.f11 = th->ack; - data.f12 = th->rst; - data.f13 = th->syn; - data.f14 = th->fin; - - marker = &GET_MARKER(net, tcpv4_rcv_extended); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -void probe_udpv4_rcv_extended(void *_data, struct sk_buff *skb); - -DEFINE_MARKER_TP(net, udpv4_rcv_extended, net_udpv4_rcv, - probe_udpv4_rcv_extended, "skb 0x%lX saddr #n4u%lu daddr #n4u%lu " - "unicast #1u%u ulen #n2u%hu source #n2u%hu dest #n2u%hu " - "data_start #8u%lx"); - -notrace void probe_udpv4_rcv_extended(void *_data, struct sk_buff *skb) -{ - struct marker *marker; - struct serialize_l4412228 data; - struct iphdr *iph = ip_hdr(skb); - struct rtable *rt = skb_rtable(skb); - struct udphdr *uh = udp_hdr(skb); - - data.f1 = (unsigned long)skb; - data.f2 = iph->saddr; - data.f3 = iph->daddr; - data.f4 = rt->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST) ? 0 : 1; - data.f5 = uh->len; - data.f6 = uh->source; - data.f7 = uh->dest; - /* UDP header has not been pulled from skb->data, read the first 8 - * bytes of UDP data if they are not in a fragment*/ - data.f8 = 0; - if (skb_headlen(skb) >= sizeof(struct udphdr) + 8) - data.f8 = *(unsigned long long *)(skb->data + sizeof(*uh)); - else if (skb_headlen(skb) >= sizeof(struct udphdr)) - memcpy(&data.f8, skb->data + sizeof(struct udphdr), - skb_headlen(skb) - sizeof(struct udphdr)); - - marker = &GET_MARKER(net, udpv4_rcv_extended); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(unsigned long long)); -} - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Benjamin Poirier"); -MODULE_DESCRIPTION("Net Tracepoint Extended Probes"); diff --git a/probes/net-trace.c b/probes/net-trace.c deleted file mode 100644 index 3124125d..00000000 --- a/probes/net-trace.c +++ /dev/null @@ -1,406 +0,0 @@ -/* - * ltt/probes/net-trace.c - * - * Net tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include -#include -#include -#include -#include -#include - -#include "../ltt-type-serializer.h" - -void probe_net_dev_xmit(void *_data, struct sk_buff *skb); - -DEFINE_MARKER_TP(net, dev_xmit, net_dev_xmit, probe_net_dev_xmit, - "skb %p protocol #n2u%hu"); - -notrace void probe_net_dev_xmit(void *_data, struct sk_buff *skb) -{ - struct marker *marker; - struct serialize_long_short data; - - data.f1 = (unsigned long)skb; - data.f2 = skb->protocol; - - marker = &GET_MARKER(net, dev_xmit); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -void probe_net_dev_receive(void *_data, struct sk_buff *skb); - -DEFINE_MARKER_TP(net, dev_receive, net_dev_receive, probe_net_dev_receive, - "skb %p protocol #n2u%hu"); - -notrace void probe_net_dev_receive(void *_data, struct sk_buff *skb) -{ - struct marker *marker; - struct serialize_long_short data; - - data.f1 = (unsigned long)skb; - data.f2 = skb->protocol; - - marker = &GET_MARKER(net, dev_receive); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -void probe_ipv4_addr_add(void *_data, struct in_ifaddr *ifa) -{ - trace_mark_tp(netif_state, insert_ifa_ipv4, ipv4_addr_add, - probe_ipv4_addr_add, "label %s address #4u%u", - ifa->ifa_label, (unsigned int)ifa->ifa_address); -} - -void probe_ipv4_addr_del(void *_data, struct in_ifaddr *ifa) -{ - trace_mark_tp(netif_state, del_ifa_ipv4, ipv4_addr_del, - probe_ipv4_addr_del, "label %s address #4u%u", - ifa->ifa_label, (unsigned int)ifa->ifa_address); -} - -void probe_ipv6_addr_add(void *_data, struct inet6_ifaddr *ifa) -{ - __u8 *addr = ifa->addr.s6_addr; - - trace_mark_tp(netif_state, insert_ifa_ipv6, ipv6_addr_add, - probe_ipv6_addr_add, - "label %s " - "a15 #1x%c a14 #1x%c a13 #1x%c a12 #1x%c " - "a11 #1x%c a10 #1x%c a9 #1x%c a8 #1x%c " - "a7 #1x%c a6 #1x%c a5 #1x%c a4 #1x%c " - "a3 #1x%c a2 #1x%c a1 #1x%c a0 #1x%c", - ifa->idev->dev->name, - addr[15], addr[14], addr[13], addr[12], - addr[11], addr[10], addr[9], addr[8], - addr[7], addr[6], addr[5], addr[4], - addr[3], addr[2], addr[1], addr[0]); -} - -void probe_ipv6_addr_del(void *_data, struct inet6_ifaddr *ifa) -{ - __u8 *addr = ifa->addr.s6_addr; - - trace_mark_tp(netif_state, insert_ifa_ipv6, ipv6_addr_del, - probe_ipv6_addr_del, - "label %s " - "a15 #1x%c a14 #1x%c a13 #1x%c a12 #1x%c " - "a11 #1x%c a10 #1x%c a9 #1x%c a8 #1x%c " - "a7 #1x%c a6 #1x%c a5 #1x%c a4 #1x%c " - "a3 #1x%c a2 #1x%c a1 #1x%c a0 #1x%c", - ifa->idev->dev->name, - addr[15], addr[14], addr[13], addr[12], - addr[11], addr[10], addr[9], addr[8], - addr[7], addr[6], addr[5], addr[4], - addr[3], addr[2], addr[1], addr[0]); -} - -void probe_socket_create(void *_data, int family, int type, int protocol, - struct socket *sock, int ret) -{ - trace_mark_tp(net, socket_create, socket_create, probe_socket_create, - "family %d type %d protocol %d sock %p ret %d", - family, type, protocol, sock, ret); -} - -void probe_socket_bind(void *_data, int fd, struct sockaddr __user *umyaddr, int addrlen, - int ret) -{ - trace_mark_tp(net, socket_bind, socket_bind, probe_socket_bind, - "fd %d umyaddr %p addrlen %d ret %d", - fd, umyaddr, addrlen, ret); -} - -void probe_socket_connect(void *_data, int fd, struct sockaddr __user *uservaddr, - int addrlen, int ret) -{ - trace_mark_tp(net, socket_connect, socket_connect, probe_socket_connect, - "fd %d uservaddr %p addrlen %d ret %d", - fd, uservaddr, addrlen, ret); -} - -void probe_socket_listen(void *_data, int fd, int backlog, int ret) -{ - trace_mark_tp(net, socket_listen, socket_listen, probe_socket_listen, - "fd %d backlog %d ret %d", - fd, backlog, ret); -} - -void probe_socket_accept(void *_data, int fd, struct sockaddr __user *upeer_sockaddr, - int __user *upeer_addrlen, int flags, int ret) -{ - trace_mark_tp(net, socket_accept, socket_accept, probe_socket_accept, - "fd %d upeer_sockaddr %p upeer_addrlen %p flags %d ret %d", - fd, upeer_sockaddr, upeer_addrlen, flags, ret); -} - -void probe_socket_getsockname(void *_data, int fd, struct sockaddr __user *usockaddr, - int __user *usockaddr_len, int ret) -{ - trace_mark_tp(net, socket_getsockname, socket_getsockname, - probe_socket_getsockname, - "fd %d usockaddr %p usockaddr_len %p ret %d", - fd, usockaddr, usockaddr_len, ret); -} - -void probe_socket_getpeername(void *_data, int fd, struct sockaddr __user *usockaddr, - int __user *usockaddr_len, int ret) -{ - trace_mark_tp(net, socket_getpeername, socket_getpeername, - probe_socket_getpeername, - "fd %d usockaddr %p usockaddr_len %p ret %d", - fd, usockaddr, usockaddr_len, ret); -} - -void probe_socket_socketpair(void *_data, int family, int type, int protocol, - int __user *usockvec, int ret) -{ - trace_mark_tp(net, socket_socketpair, socket_socketpair, - probe_socket_socketpair, - "family %d type %d protocol %d usockvec %p ret %d", - family, type, protocol, usockvec, ret); -} - -void probe_socket_sendmsg(void *_data, struct socket *sock, struct msghdr *msg, size_t size, - int ret); - -DEFINE_MARKER_TP(net, socket_sendmsg, net_socket_sendmsg, - probe_socket_sendmsg, - "sock %p msg %p size %zu ret %d"); - -notrace void probe_socket_sendmsg(void *_data, struct socket *sock, struct msghdr *msg, - size_t size, int ret) -{ - struct marker *marker; - struct serialize_long_long_sizet_int data; - - data.f1 = (unsigned long)sock; - data.f2 = (unsigned long)msg; - data.f3 = size; - data.f4 = ret; - - marker = &GET_MARKER(net, socket_sendmsg); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(size_t)); -} - -void probe_socket_recvmsg(void *_data, struct socket *sock, struct msghdr *msg, size_t size, - int flags, int ret); - -DEFINE_MARKER_TP(net, socket_recvmsg, net_socket_recvmsg, - probe_socket_recvmsg, - "sock %p msg %p size %zu flags %d ret %d"); - -notrace void probe_socket_recvmsg(void *_data, struct socket *sock, struct msghdr *msg, - size_t size, int flags, int ret) -{ - struct marker *marker; - struct serialize_long_long_sizet_int_int data; - - data.f1 = (unsigned long)sock; - data.f2 = (unsigned long)msg; - data.f3 = size; - data.f4 = flags; - data.f5 = ret; - - marker = &GET_MARKER(net, socket_recvmsg); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(size_t)); -} - -void probe_socket_setsockopt(void *_data, int fd, int level, int optname, - char __user *optval, int optlen, int ret) -{ - trace_mark_tp(net, socket_setsockopt, socket_setsockopt, - probe_socket_setsockopt, - "fd %d level %d optname %d optval %p optlen %d ret %d", - fd, level, optname, optval, optlen, ret); -} - -void probe_socket_getsockopt(void *_data, int fd, int level, int optname, - char __user *optval, int __user *optlen, int ret) -{ - trace_mark_tp(net, socket_getsockopt, socket_getsockopt, - probe_socket_getsockopt, - "fd %d level %d optname %d optval %p optlen %p ret %d", - fd, level, optname, optval, optlen, ret); -} - -void probe_socket_shutdown(void *_data, int fd, int how, int ret) -{ - trace_mark_tp(net, socket_shutdown, socket_shutdown, - probe_socket_shutdown, - "fd %d how %d ret %d", - fd, how, ret); -} - -void probe_socket_call(void *_data, int call, unsigned long a0) -{ - trace_mark_tp(net, socket_call, socket_call, probe_socket_call, - "call %d a0 %lu", call, a0); -} - -void probe_tcpv4_rcv(void *_data, struct sk_buff *skb); - -DEFINE_MARKER_TP(net, tcpv4_rcv, net_tcpv4_rcv, probe_tcpv4_rcv, - "skb %p"); - -notrace void probe_tcpv4_rcv(void *_data, struct sk_buff *skb) -{ - struct marker *marker; - - marker = &GET_MARKER(net, tcpv4_rcv); - ltt_specialized_trace(marker, marker->single.probe_private, - &skb, sizeof(skb), sizeof(skb)); -} - -void probe_udpv4_rcv(void *_data, struct sk_buff *skb); - -DEFINE_MARKER_TP(net, udpv4_rcv, net_udpv4_rcv, probe_udpv4_rcv, - "skb %p"); - -notrace void probe_udpv4_rcv(void *_data, struct sk_buff *skb) -{ - struct marker *marker; - - marker = &GET_MARKER(net, udpv4_rcv); - ltt_specialized_trace(marker, marker->single.probe_private, - &skb, sizeof(skb), sizeof(skb)); -} - -#ifdef CONFIG_NETPOLL -void probe_net_napi_schedule(void *_data, struct napi_struct *n); - -DEFINE_MARKER_TP(net, napi_schedule, net_napi_schedule, - probe_net_napi_schedule, - "napi_struct %p name %s"); - -notrace void probe_net_napi_schedule(void *_data, struct napi_struct *n) -{ - struct marker *marker; - struct serialize_long_ifname data; - size_t data_len = 0; - - data.f1 = (unsigned long)n; - data_len += sizeof(data.f1); - /* No need to align for strings */ - strcpy(data.f2, n->dev ? n->dev->name : ""); - data_len += strlen(data.f2) + 1; - - marker = &GET_MARKER(net, napi_schedule); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, data_len, sizeof(long)); -} - -void probe_net_napi_poll(void *_data, struct napi_struct *n); - -DEFINE_MARKER_TP(net, napi_poll, net_napi_poll, - probe_net_napi_poll, - "napi_struct %p name %s"); - -notrace void probe_net_napi_poll(void *_data, struct napi_struct *n) -{ - struct marker *marker; - struct serialize_long_ifname data; - size_t data_len = 0; - - data.f1 = (unsigned long)n; - data_len += sizeof(data.f1); - /* No need to align for strings */ - strcpy(data.f2, n->dev ? n->dev->name : ""); - data_len += strlen(data.f2) + 1; - - marker = &GET_MARKER(net, napi_poll); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, data_len, sizeof(long)); -} - -void probe_net_napi_complete(void *_data, struct napi_struct *n); - -DEFINE_MARKER_TP(net, napi_complete, net_napi_complete, - probe_net_napi_complete, - "napi_struct %p name %s"); - -notrace void probe_net_napi_complete(void *_data, struct napi_struct *n) -{ - struct marker *marker; - struct serialize_long_ifname data; - size_t data_len = 0; - - data.f1 = (unsigned long)n; - data_len += sizeof(data.f1); - /* No need to align for strings */ - strcpy(data.f2, n->dev ? n->dev->name : ""); - data_len += strlen(data.f2) + 1; - - marker = &GET_MARKER(net, napi_complete); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, data_len, sizeof(long)); -} -#else /* !CONFIG_NETPOLL */ -void probe_net_napi_schedule(void *_data, struct napi_struct *n); - -DEFINE_MARKER_TP(net, napi_schedule, net_napi_schedule, - probe_net_napi_schedule, - "napi_struct %p"); - -notrace void probe_net_napi_schedule(void *_data, struct napi_struct *n) -{ - struct marker *marker; - unsigned long data; - - data = (unsigned long)n; - - marker = &GET_MARKER(net, napi_schedule); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, sizeof(data), sizeof(data)); -} - -void probe_net_napi_poll(void *_data, struct napi_struct *n); - -DEFINE_MARKER_TP(net, napi_poll, net_napi_poll, - probe_net_napi_poll, - "napi_struct %p"); - -notrace void probe_net_napi_poll(void *_data, struct napi_struct *n) -{ - struct marker *marker; - unsigned long data; - - data = (unsigned long)n; - - marker = &GET_MARKER(net, napi_poll); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, sizeof(data), sizeof(data)); -} - -void probe_net_napi_complete(void *_data, struct napi_struct *n); - -DEFINE_MARKER_TP(net, napi_complete, net_napi_complete, - probe_net_napi_complete, - "napi_struct %p"); - -notrace void probe_net_napi_complete(void *_data, struct napi_struct *n) -{ - struct marker *marker; - unsigned long data; - - data = (unsigned long)n; - - marker = &GET_MARKER(net, napi_complete); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, sizeof(data), sizeof(data)); -} -#endif - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("Net Tracepoint Probes"); diff --git a/probes/pm-trace.c b/probes/pm-trace.c deleted file mode 100644 index 7abe8e37..00000000 --- a/probes/pm-trace.c +++ /dev/null @@ -1,43 +0,0 @@ -/* - * ltt/probes/pm-trace.c - * - * Power Management tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include - -void probe_pm_idle_entry(void *_data) -{ - trace_mark_tp(pm, idle_entry, pm_idle_entry, - probe_pm_idle_entry, "irqstate #1%d", - irqs_disabled()); -} - -void probe_pm_idle_exit(void *_data) -{ - trace_mark_tp(pm, idle_exit, pm_idle_exit, - probe_pm_idle_exit, "irqstate #1%d", - irqs_disabled()); -} - -void probe_pm_suspend_entry(void *_data) -{ - trace_mark_tp(pm, suspend_entry, pm_suspend_entry, - probe_pm_suspend_entry, "irqstate #1%d", - irqs_disabled()); -} - -void probe_pm_suspend_exit(void *_data) -{ - trace_mark_tp(pm, suspend_exit, pm_suspend_exit, - probe_pm_suspend_exit, "irqstate #1%d", - irqs_disabled()); -} - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("Power Management Tracepoint Probes"); diff --git a/probes/rcu-trace.c b/probes/rcu-trace.c deleted file mode 100644 index cc164546..00000000 --- a/probes/rcu-trace.c +++ /dev/null @@ -1,36 +0,0 @@ -/* - * ltt/probes/rcu-trace.c - * - * RCU tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include - -#ifdef CONFIG_TREE_RCU -void probe_rcu_tree_callback(void *data, struct rcu_head *head) -{ - trace_mark_tp(rcu, tree_callback, rcu_tree_callback, - probe_rcu_tree_callback, "func %p", head->func); -} - -void probe_rcu_tree_call_rcu(void *data, struct rcu_head *head, unsigned long ip) -{ - trace_mark_tp(rcu, tree_call_rcu, rcu_tree_call_rcu, - probe_rcu_tree_call_rcu, "func %p ip 0x%lX", head->func, ip); -} - -void probe_rcu_tree_call_rcu_bh(void *data, struct rcu_head *head, unsigned long ip) -{ - trace_mark_tp(rcu, tree_call_rcu_bh, rcu_tree_call_rcu_bh, - probe_rcu_tree_call_rcu_bh, "func %p ip 0x%lX", - head->func, ip); -} -#endif - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("RCU Tracepoint Probes"); diff --git a/probes/syscall-trace.c b/probes/syscall-trace.c deleted file mode 100644 index 9ae419fc..00000000 --- a/probes/syscall-trace.c +++ /dev/null @@ -1,54 +0,0 @@ -/* - * ltt/probes/syscall-trace.c - * - * System call tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include - -#include "../ltt-type-serializer.h" - - -/* kernel_syscall_entry specialized tracepoint probe */ - -void probe_syscall_entry(void *_data, struct pt_regs *regs, long id); - -DEFINE_MARKER_TP(kernel, syscall_entry, syscall_entry, - probe_syscall_entry, "ip #p%ld syscall_id #2u%u"); - -notrace void probe_syscall_entry(void *_data, struct pt_regs *regs, long id) -{ - struct marker *marker; - struct serialize_long_short data; - - data.f1 = instruction_pointer(regs); - data.f2 = (unsigned short)id; - - marker = &GET_MARKER(kernel, syscall_entry); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -/* kernel_syscall_exit specialized tracepoint probe */ - -void probe_syscall_exit(void *_data, long ret); - -DEFINE_MARKER_TP(kernel, syscall_exit, syscall_exit, - probe_syscall_exit, "ret %ld"); - -notrace void probe_syscall_exit(void *_data, long ret) -{ - struct marker *marker; - - marker = &GET_MARKER(kernel, syscall_exit); - ltt_specialized_trace(marker, marker->single.probe_private, - &ret, sizeof(ret), sizeof(ret)); -} - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("syscall Tracepoint Probes"); diff --git a/probes/trap-trace.c b/probes/trap-trace.c deleted file mode 100644 index 397254cd..00000000 --- a/probes/trap-trace.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * ltt/probes/trap-trace.c - * - * Trap tracepoint probes. - * - * (C) Copyright 2009 - Mathieu Desnoyers - * Dual LGPL v2.1/GPL v2 license. - */ - -#include -#include - -#include "../ltt-type-serializer.h" - -/* kernel_trap_entry specialized tracepoint probe */ - -void probe_trap_entry(void *_data, struct pt_regs *regs, long id); - -DEFINE_MARKER_TP(kernel, trap_entry, trap_entry, - probe_trap_entry, "ip #p%ld trap_id #2u%u"); - -notrace void probe_trap_entry(void *_data, struct pt_regs *regs, long id) -{ - struct marker *marker; - struct serialize_long_short data; - - if (likely(regs)) - data.f1 = instruction_pointer(regs); - else - data.f1 = 0UL; - data.f2 = (unsigned short)id; - - marker = &GET_MARKER(kernel, trap_entry); - ltt_specialized_trace(marker, marker->single.probe_private, - &data, serialize_sizeof(data), sizeof(long)); -} - -/* kernel_syscall_exit specialized tracepoint probe */ - -void probe_trap_exit(void *_data); - -DEFINE_MARKER_TP(kernel, trap_exit, trap_exit, - probe_trap_exit, MARK_NOARGS); - -notrace void probe_trap_exit(void *_data) -{ - struct marker *marker; - - marker = &GET_MARKER(kernel, trap_exit); - ltt_specialized_trace(marker, marker->single.probe_private, - NULL, 0, 0); -} - -MODULE_LICENSE("GPL and additional rights"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("Trap Tracepoint Probes");