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authorFrederic Weisbecker <fweisbec@gmail.com>2010-06-29 18:08:13 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2010-08-19 01:29:35 +0200
commitc1a65932fd7216fdc9a0db8bbffe1d47842f862c (patch)
tree5c7b3c616f850ba549abdd645cfa9d4121eb8623 /arch/x86/kernel/cpu/perf_event.c
parentperf ui hist browser: Fixup key bindings (diff)
downloadlinux-dev-c1a65932fd7216fdc9a0db8bbffe1d47842f862c.tar.xz
linux-dev-c1a65932fd7216fdc9a0db8bbffe1d47842f862c.zip
perf: Drop unappropriate tests on arch callchains
Drop the TASK_RUNNING test on user tasks for callchains as this check doesn't seem to make any sense. Also remove the tests for !current that is not supposed to happen and current->pid as this should be handled at the generic level, with exclude_idle attribute. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> 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: Paul Mackerras <paulus@samba.org> 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 '')
-rw-r--r--arch/x86/kernel/cpu/perf_event.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index f2da20fda02d..4a4d191f9492 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1703,9 +1703,6 @@ perf_do_callchain(struct pt_regs *regs, struct perf_callchain_entry *entry)
is_user = user_mode(regs);
- if (is_user && current->state != TASK_RUNNING)
- return;
-
if (!is_user)
perf_callchain_kernel(regs, entry);