From: Julien Desfossez Date: Tue, 30 Sep 2014 20:49:33 +0000 (-0400) Subject: Sync writeback tracepoints from mainline X-Git-Tag: v2.6.0-rc1~16 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=aa634cd14131f2d4f0f53af68fc534c476de228a;p=lttng-modules.git Sync writeback tracepoints from mainline Signed-off-by: Julien Desfossez Signed-off-by: Mathieu Desnoyers --- diff --git a/instrumentation/events/lttng-module/writeback.h b/instrumentation/events/lttng-module/writeback.h index 5525fed4..111decf0 100644 --- a/instrumentation/events/lttng-module/writeback.h +++ b/instrumentation/events/lttng-module/writeback.h @@ -5,6 +5,7 @@ #define LTTNG_TRACE_WRITEBACK_H #include "../../../probes/lttng-tracepoint-event.h" +#include #include #include #include @@ -47,6 +48,86 @@ static inline struct backing_dev_info *inode_to_bdi(struct inode *inode) {WB_REASON_FORKER_THREAD, "forker_thread"} #endif +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) +LTTNG_TRACEPOINT_EVENT(writeback_dirty_page, + TP_PROTO(struct page *page, struct address_space *mapping), + TP_ARGS(page, mapping), + TP_STRUCT__entry ( + __array_text(char, name, 32) + __field(unsigned long, ino) + __field(pgoff_t, index) + ), + TP_fast_assign( + tp_memcpy(name, + mapping ? dev_name(mapping->backing_dev_info->dev) : "(unknown)", 32) + tp_assign(ino, mapping ? mapping->host->i_ino : 0) + tp_assign(index, page->index) + ), + TP_printk("bdi %s: ino=%lu index=%lu", + __entry->name, + __entry->ino, + __entry->index + ) +) + +LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template, + TP_PROTO(struct inode *inode, int flags), + TP_ARGS(inode, flags), + TP_STRUCT__entry ( + __array_text(char, name, 32) + __field(unsigned long, ino) + __field(unsigned long, flags) + ), + TP_fast_assign( + /* may be called for files on pseudo FSes w/ unregistered bdi */ + tp_memcpy(name, + inode->i_mapping->backing_dev_info->dev ? + dev_name(inode->i_mapping->backing_dev_info->dev) : "(unknown)", 32) + tp_assign(ino, inode->i_ino) + tp_assign(flags, flags) + ), + TP_printk("bdi %s: ino=%lu flags=%s", + __entry->name, + __entry->ino, + show_inode_state(__entry->flags) + ) +) +#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \ +LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \ + TP_PROTO(struct inode *inode, int flags), \ + TP_ARGS(inode, flags)) +LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start) +LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode) + +LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template, + TP_PROTO(struct inode *inode, struct writeback_control *wbc), + TP_ARGS(inode, wbc), + TP_STRUCT__entry ( + __array_text(char, name, 32) + __field(unsigned long, ino) + __field(int, sync_mode) + ), + TP_fast_assign( + tp_memcpy(name, + dev_name(inode->i_mapping->backing_dev_info->dev), 32) + tp_assign(ino, inode->i_ino) + tp_assign(sync_mode, wbc->sync_mode) + ), + TP_printk("bdi %s: ino=%lu sync_mode=%d", + __entry->name, + __entry->ino, + __entry->sync_mode + ) +) + +#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \ +LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \ + TP_PROTO(struct inode *inode, struct writeback_control *wbc), \ + TP_ARGS(inode, wbc)) +LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start) +LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode) +#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */ + LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class, TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), TP_ARGS(bdi, work), diff --git a/instrumentation/events/mainline/writeback.h b/instrumentation/events/mainline/writeback.h index b453d92c..cee02d65 100644 --- a/instrumentation/events/mainline/writeback.h +++ b/instrumentation/events/mainline/writeback.h @@ -4,6 +4,7 @@ #if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ) #define _TRACE_WRITEBACK_H +#include #include #include @@ -32,6 +33,115 @@ struct wb_writeback_work; +TRACE_EVENT(writeback_dirty_page, + + TP_PROTO(struct page *page, struct address_space *mapping), + + TP_ARGS(page, mapping), + + TP_STRUCT__entry ( + __array(char, name, 32) + __field(unsigned long, ino) + __field(pgoff_t, index) + ), + + TP_fast_assign( + strncpy(__entry->name, + mapping ? dev_name(mapping->backing_dev_info->dev) : "(unknown)", 32); + __entry->ino = mapping ? mapping->host->i_ino : 0; + __entry->index = page->index; + ), + + TP_printk("bdi %s: ino=%lu index=%lu", + __entry->name, + __entry->ino, + __entry->index + ) +); + +DECLARE_EVENT_CLASS(writeback_dirty_inode_template, + + TP_PROTO(struct inode *inode, int flags), + + TP_ARGS(inode, flags), + + TP_STRUCT__entry ( + __array(char, name, 32) + __field(unsigned long, ino) + __field(unsigned long, flags) + ), + + TP_fast_assign( + struct backing_dev_info *bdi = inode->i_mapping->backing_dev_info; + + /* may be called for files on pseudo FSes w/ unregistered bdi */ + strncpy(__entry->name, + bdi->dev ? dev_name(bdi->dev) : "(unknown)", 32); + __entry->ino = inode->i_ino; + __entry->flags = flags; + ), + + TP_printk("bdi %s: ino=%lu flags=%s", + __entry->name, + __entry->ino, + show_inode_state(__entry->flags) + ) +); + +DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode_start, + + TP_PROTO(struct inode *inode, int flags), + + TP_ARGS(inode, flags) +); + +DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode, + + TP_PROTO(struct inode *inode, int flags), + + TP_ARGS(inode, flags) +); + +DECLARE_EVENT_CLASS(writeback_write_inode_template, + + TP_PROTO(struct inode *inode, struct writeback_control *wbc), + + TP_ARGS(inode, wbc), + + TP_STRUCT__entry ( + __array(char, name, 32) + __field(unsigned long, ino) + __field(int, sync_mode) + ), + + TP_fast_assign( + strncpy(__entry->name, + dev_name(inode->i_mapping->backing_dev_info->dev), 32); + __entry->ino = inode->i_ino; + __entry->sync_mode = wbc->sync_mode; + ), + + TP_printk("bdi %s: ino=%lu sync_mode=%d", + __entry->name, + __entry->ino, + __entry->sync_mode + ) +); + +DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode_start, + + TP_PROTO(struct inode *inode, struct writeback_control *wbc), + + TP_ARGS(inode, wbc) +); + +DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode, + + TP_PROTO(struct inode *inode, struct writeback_control *wbc), + + TP_ARGS(inode, wbc) +); + DECLARE_EVENT_CLASS(writeback_work_class, TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), TP_ARGS(bdi, work), @@ -74,7 +184,6 @@ DECLARE_EVENT_CLASS(writeback_work_class, DEFINE_EVENT(writeback_work_class, name, \ TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \ TP_ARGS(bdi, work)) -DEFINE_WRITEBACK_WORK_EVENT(writeback_nothread); DEFINE_WRITEBACK_WORK_EVENT(writeback_queue); DEFINE_WRITEBACK_WORK_EVENT(writeback_exec); DEFINE_WRITEBACK_WORK_EVENT(writeback_start); @@ -113,12 +222,8 @@ DEFINE_EVENT(writeback_class, name, \ DEFINE_WRITEBACK_EVENT(writeback_nowork); DEFINE_WRITEBACK_EVENT(writeback_wake_background); -DEFINE_WRITEBACK_EVENT(writeback_wake_thread); -DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread); DEFINE_WRITEBACK_EVENT(writeback_bdi_register); DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister); -DEFINE_WRITEBACK_EVENT(writeback_thread_start); -DEFINE_WRITEBACK_EVENT(writeback_thread_stop); DECLARE_EVENT_CLASS(wbc_class, TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), @@ -479,6 +584,13 @@ DECLARE_EVENT_CLASS(writeback_single_inode_template, ) ); +DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start, + TP_PROTO(struct inode *inode, + struct writeback_control *wbc, + unsigned long nr_to_write), + TP_ARGS(inode, wbc, nr_to_write) +); + DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode, TP_PROTO(struct inode *inode, struct writeback_control *wbc,