diff options
| author | Konstantin Khlebnikov <khlebnikov@yandex-team.ru> | 2016-06-16 15:57:15 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-06-24 08:26:45 +0200 |
| commit | 754bd598be9bbc953bc709a9e8ed7f3188bfb9d7 (patch) | |
| tree | cfb67972d70b0bcb1f3eccb042a5b8f8e432d045 | |
| parent | 094f469172e00d6ab0a3130b0e01c83b3cf3a98d (diff) | |
sched/fair: Do not announce throttled next buddy in dequeue_task_fair()
Hierarchy could be already throttled at this point. Throttled next
buddy could trigger a NULL pointer dereference in pick_next_task_fair().
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ben Segall <bsegall@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/146608183552.21905.15924473394414832071.stgit@buzz
Signed-off-by: Ingo Molnar <mingo@kernel.org>