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gcc blacklist: only apply when building with gcc
[lttng-modules.git]
/
lib
/
ringbuffer
/
backend.h
diff --git
a/lib/ringbuffer/backend.h
b/lib/ringbuffer/backend.h
index 826be933fe61bb45efbe96a7738823e3ae46af9e..bbbc80d8eb03be444d4890d828d92f7f6eb118ab 100644
(file)
--- a/
lib/ringbuffer/backend.h
+++ b/
lib/ringbuffer/backend.h
@@
-96,6
+96,8
@@
void lib_ring_buffer_write(const struct lib_ring_buffer_config *config,
struct lib_ring_buffer_backend_pages *rpages;
unsigned long sb_bindex, id;
struct lib_ring_buffer_backend_pages *rpages;
unsigned long sb_bindex, id;
+ if (unlikely(!len))
+ return;
offset &= chanb->buf_size - 1;
sbidx = offset >> chanb->subbuf_size_order;
index = (offset & (chanb->subbuf_size - 1)) >> PAGE_SHIFT;
offset &= chanb->buf_size - 1;
sbidx = offset >> chanb->subbuf_size_order;
index = (offset & (chanb->subbuf_size - 1)) >> PAGE_SHIFT;
@@
-142,6
+144,8
@@
void lib_ring_buffer_memset(const struct lib_ring_buffer_config *config,
struct lib_ring_buffer_backend_pages *rpages;
unsigned long sb_bindex, id;
struct lib_ring_buffer_backend_pages *rpages;
unsigned long sb_bindex, id;
+ if (unlikely(!len))
+ return;
offset &= chanb->buf_size - 1;
sbidx = offset >> chanb->subbuf_size_order;
index = (offset & (chanb->subbuf_size - 1)) >> PAGE_SHIFT;
offset &= chanb->buf_size - 1;
sbidx = offset >> chanb->subbuf_size_order;
index = (offset & (chanb->subbuf_size - 1)) >> PAGE_SHIFT;
@@
-189,6
+193,8
@@
void lib_ring_buffer_copy_from_user_inatomic(const struct lib_ring_buffer_config
unsigned long ret;
mm_segment_t old_fs = get_fs();
unsigned long ret;
mm_segment_t old_fs = get_fs();
+ if (unlikely(!len))
+ return;
offset &= chanb->buf_size - 1;
sbidx = offset >> chanb->subbuf_size_order;
index = (offset & (chanb->subbuf_size - 1)) >> PAGE_SHIFT;
offset &= chanb->buf_size - 1;
sbidx = offset >> chanb->subbuf_size_order;
index = (offset & (chanb->subbuf_size - 1)) >> PAGE_SHIFT;
@@
-263,9
+269,4
@@
unsigned long lib_ring_buffer_get_records_unread(
return records_unread;
}
return records_unread;
}
-ssize_t lib_ring_buffer_file_splice_read(struct file *in, loff_t *ppos,
- struct pipe_inode_info *pipe,
- size_t len, unsigned int flags);
-loff_t lib_ring_buffer_no_llseek(struct file *file, loff_t offset, int origin);
-
#endif /* _LIB_RING_BUFFER_BACKEND_H */
#endif /* _LIB_RING_BUFFER_BACKEND_H */
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