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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2010-05-21 15:11:34 +0200
committerIngo Molnar <mingo@elte.hu>2010-06-09 11:12:33 +0200
commitecc55f84b2e9741f29daa787ded93986df6cbe17 (patch)
tree9da1012eb14faf8133e7e432b0da581ed55de6ee /kernel/perf_event.c
parente768aee89c687a50e6a2110e30c5cae1fbf0d2da (diff)
downloadop-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>
Diffstat (limited to 'kernel/perf_event.c')
-rw-r--r--kernel/perf_event.c8
1 files changed, 4 insertions, 4 deletions
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);
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