diff options
| author | Kirill Tkhai <ktkhai@odin.com> | 2015-08-31 14:12:56 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-09-13 11:27:23 +0200 |
| commit | 516792e67c39d31701641ab355acdb9cbfec0643 (patch) | |
| tree | ad17983965eb8a08c3e83ef9f55fa5f39b9157b9 /kernel/events | |
| parent | perf/x86/intel: Fix LBR callstack issue caused by FREEZE_LBRS_ON_PMI (diff) | |
| download | linux-516792e67c39d31701641ab355acdb9cbfec0643.tar.xz linux-516792e67c39d31701641ab355acdb9cbfec0643.zip | |
perf/core: Delete PF_EXITING checks from perf_cgroup_exit() callback
cgroup_exit() is not called from copy_process() after commit:
e8604cb43690 ("cgroup: fix spurious lockdep warning in cgroup_exit()")
from do_exit(). So this check is useless and the comment is obsolete.
Signed-off-by: Kirill Tkhai <ktkhai@odin.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/55E444C8.3020402@odin.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/events')
| -rw-r--r-- | kernel/events/core.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index f548f69c4299..76e64be9bfb5 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -9297,14 +9297,6 @@ static void perf_cgroup_exit(struct cgroup_subsys_state *css, struct cgroup_subsys_state *old_css, struct task_struct *task) { - /* - * cgroup_exit() is called in the copy_process() failure path. - * Ignore this case since the task hasn't ran yet, this avoids - * trying to poke a half freed task state from generic code. - */ - if (!(task->flags & PF_EXITING)) - return; - task_function_call(task, __perf_cgroup_move, task); } |