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| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2013-04-04 10:57:48 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-04-08 17:40:52 +0200 |
| commit | e614b3332a4f3f264a26da28e5a1f4cc3aea3974 (patch) | |
| tree | fcc2e93829d8fc93867c64f58a637cf4fadf5c5e /kernel/sched | |
| parent | fd9b86d37a600488dbd80fe60cca46b822bff1cd (diff) | |
| download | lwn-e614b3332a4f3f264a26da28e5a1f4cc3aea3974.tar.gz lwn-e614b3332a4f3f264a26da28e5a1f4cc3aea3974.zip | |
sched/cputime: Fix accounting on multi-threaded processes
Recent commit 6fac4829 ("cputime: Use accessors to read task
cputime stats") introduced a bug, where we account many times
the cputime of the first thread, instead of cputimes of all
the different threads.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20130404085740.GA2495@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/cputime.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c index ed12cbb135f4..e93cca92f38b 100644 --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -310,7 +310,7 @@ void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times) t = tsk; do { - task_cputime(tsk, &utime, &stime); + task_cputime(t, &utime, &stime); times->utime += utime; times->stime += stime; times->sum_exec_runtime += task_sched_runtime(t); |