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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-05-21 15:11:34 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-06-09 11:12:33 +0200 |
| commit | ecc55f84b2e9741f29daa787ded93986df6cbe17 (patch) | |
| tree | 9da1012eb14faf8133e7e432b0da581ed55de6ee | |
| parent | e768aee89c687a50e6a2110e30c5cae1fbf0d2da (diff) | |
| download | op-kernel-dev-ecc55f84b2e9741f29daa787ded93986df6cbe17.zip op-kernel-dev-ecc55f84b2e9741f29daa787ded93986df6cbe17.tar.gz | |
perf, trace: Inline perf_swevent_put_recursion_context()
Inline perf_swevent_put_recursion_context into perf_tp_event(), this
shrinks the per trace template code footprint and saves a function
call.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | include/linux/ftrace_event.h | 3 | ||||
| -rw-r--r-- | include/linux/perf_event.h | 2 | ||||
| -rw-r--r-- | kernel/perf_event.c | 8 |
3 files changed, 6 insertions, 7 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index 3167f2d..0af31cd 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -257,8 +257,7 @@ static inline void perf_trace_buf_submit(void *raw_data, int size, int rctx, u64 addr, u64 count, struct pt_regs *regs, void *head) { - perf_tp_event(addr, count, raw_data, size, regs, head); - perf_swevent_put_recursion_context(rctx); + perf_tp_event(addr, count, raw_data, size, regs, head, rctx); } #endif diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 5d0266d..c691a0b 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1001,7 +1001,7 @@ static inline bool perf_paranoid_kernel(void) extern void perf_event_init(void); extern void perf_tp_event(u64 addr, u64 count, void *record, int entry_size, struct pt_regs *regs, - struct hlist_head *head); + struct hlist_head *head, int rctx); extern void perf_bp_event(struct perf_event *event, void *data); #ifndef perf_misc_flags diff --git a/kernel/perf_event.c b/kernel/perf_event.c index ff86c55..4bd3b59 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -4213,14 +4213,12 @@ int perf_swevent_get_recursion_context(void) } EXPORT_SYMBOL_GPL(perf_swevent_get_recursion_context); -void perf_swevent_put_recursion_context(int rctx) +void inline perf_swevent_put_recursion_context(int rctx) { struct perf_cpu_context *cpuctx = &__get_cpu_var(perf_cpu_context); barrier(); cpuctx->recursion[rctx]--; } -EXPORT_SYMBOL_GPL(perf_swevent_put_recursion_context); - void __perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr) @@ -4601,7 +4599,7 @@ static int perf_tp_event_match(struct perf_event *event, } void perf_tp_event(u64 addr, u64 count, void *record, int entry_size, - struct pt_regs *regs, struct hlist_head *head) + struct pt_regs *regs, struct hlist_head *head, int rctx) { struct perf_sample_data data; struct perf_event *event; @@ -4621,6 +4619,8 @@ void perf_tp_event(u64 addr, u64 count, void *record, int entry_size, perf_swevent_add(event, count, 1, &data, regs); } rcu_read_unlock(); + + perf_swevent_put_recursion_context(rctx); } EXPORT_SYMBOL_GPL(perf_tp_event); |
