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perf: Generalize callchain_store()

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callchain_store() is the same on every archs, inline it in
perf_event.h and rename it to perf_callchain_store() to avoid
any collision.

This removes repetitive code.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Tested-by: Will Deacon <will.deacon@arm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: David Miller <davem@davemloft.net>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Borislav Petkov <bp@amd64.org>
This commit is contained in:
Frederic Weisbecker 2010-06-29 19:34:05 +02:00
parent c1a65932fd
commit 70791ce9ba
6 changed files with 45 additions and 74 deletions
Download patch file Download diff file Expand all files Collapse all files

7
include/linux/perf_event.h
View file

@ -978,6 +978,13 @@ extern void perf_event_fork(struct task_struct *tsk);
extern struct perf_callchain_entry *perf_callchain(struct pt_regs *regs);
static inline void
perf_callchain_store(struct perf_callchain_entry *entry, u64 ip)
{
if (entry->nr < PERF_MAX_STACK_DEPTH)
entry->ip[entry->nr++] = ip;
}
extern int sysctl_perf_event_paranoid;
extern int sysctl_perf_event_mlock;
extern int sysctl_perf_event_sample_rate;