diff options
| author | Alexei Starovoitov <ast@fb.com> | 2016-04-06 18:43:24 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-07 21:04:26 -0400 |
| commit | 1e1dcd93b468901e114f279c94a0b356adc5e7cd (patch) | |
| tree | b0bee9a35251caacc44d9a3ffbbae90e8afb237d /include/linux/perf_event.h | |
| parent | e93735be6a1898dd9f8de8f55254cc76309777ce (diff) | |
perf: split perf_trace_buf_prepare into alloc and update parts
split allows to move expensive update of 'struct trace_entry' to later phase.
Repurpose unused 1st argument of perf_tp_event() to indicate event type.
While splitting use temp variable 'rctx' instead of '*rctx' to avoid
unnecessary loads done by the compiler due to -fno-strict-aliasing
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index e89f7199c223..eb41b535ef38 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1016,7 +1016,7 @@ static inline bool perf_paranoid_kernel(void) } extern void perf_event_init(void); -extern void perf_tp_event(u64 addr, u64 count, void *record, +extern void perf_tp_event(u16 event_type, u64 count, void *record, int entry_size, struct pt_regs *regs, struct hlist_head *head, int rctx, struct task_struct *task); |