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authorFrederic Weisbecker <fweisbec@gmail.com>2010-07-01 02:31:21 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2010-08-19 01:32:11 +0200
commitf72c1a931e311bb7780fee19e41a89ac42cab50e (patch)
tree470aa111c535af47d8444a249c83b5d360806e69 /kernel/perf_event.c
parent56962b4449af34070bb1994621ef4f0265eed4d8 (diff)
perf: Factorize callchain context handling
Store the kernel and user contexts from the generic layer instead of archs, this gathers some 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>
Diffstat (limited to 'kernel/perf_event.c')
-rw-r--r--kernel/perf_event.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 02efde6c8798..615d024894cf 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -2969,6 +2969,7 @@ static struct perf_callchain_entry *perf_callchain(struct pt_regs *regs)
entry->nr = 0;
if (!user_mode(regs)) {
+ perf_callchain_store(entry, PERF_CONTEXT_KERNEL);
perf_callchain_kernel(entry, regs);
if (current->mm)
regs = task_pt_regs(current);
@@ -2976,8 +2977,10 @@ static struct perf_callchain_entry *perf_callchain(struct pt_regs *regs)
regs = NULL;
}
- if (regs)
+ if (regs) {
+ perf_callchain_store(entry, PERF_CONTEXT_USER);
perf_callchain_user(entry, regs);
+ }
return entry;
}