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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-05 10:20:47 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-05 10:20:47 +0100 |
| commit | c4ef144a9d0803eb0a2d4110ae87e7f34e667ded (patch) | |
| tree | b4b5e472bafb3d5d0d8ea26680e1d8cc87365c30 /include/linux/ring_buffer.h | |
| parent | a1be621dfacbef0fd374d8acd553d71e07bf29ac (diff) | |
| parent | efed792d6738964f399a508ef9e831cd60fa4657 (diff) | |
| download | kernel-crypto-c4ef144a9d0803eb0a2d4110ae87e7f34e667ded.tar.gz kernel-crypto-c4ef144a9d0803eb0a2d4110ae87e7f34e667ded.tar.xz kernel-crypto-c4ef144a9d0803eb0a2d4110ae87e7f34e667ded.zip | |
Merge branch 'tracing/ftrace' into tracing/core
Diffstat (limited to 'include/linux/ring_buffer.h')
| -rw-r--r-- | include/linux/ring_buffer.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h index f5e793d69bd..79fcbc4b09d 100644 --- a/include/linux/ring_buffer.h +++ b/include/linux/ring_buffer.h @@ -121,6 +121,9 @@ unsigned long ring_buffer_overrun_cpu(struct ring_buffer *buffer, int cpu); u64 ring_buffer_time_stamp(int cpu); void ring_buffer_normalize_time_stamp(int cpu, u64 *ts); +size_t ring_buffer_page_len(void *page); + + /* * The below functions are fine to use outside the tracing facility. */ @@ -138,8 +141,8 @@ static inline int tracing_is_on(void) { return 0; } void *ring_buffer_alloc_read_page(struct ring_buffer *buffer); void ring_buffer_free_read_page(struct ring_buffer *buffer, void *data); -int ring_buffer_read_page(struct ring_buffer *buffer, - void **data_page, int cpu, int full); +int ring_buffer_read_page(struct ring_buffer *buffer, void **data_page, + size_t len, int cpu, int full); enum ring_buffer_flags { RB_FL_OVERWRITE = 1 << 0, |