]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
sched/fair: Do not announce throttled next buddy in dequeue_task_fair()
authorKonstantin Khlebnikov <khlebnikov@yandex-team.ru>
Thu, 16 Jun 2016 12:57:15 +0000 (15:57 +0300)
committerIngo Molnar <mingo@kernel.org>
Fri, 24 Jun 2016 06:26:45 +0000 (08:26 +0200)
commit754bd598be9bbc953bc709a9e8ed7f3188bfb9d7
treecfb67972d70b0bcb1f3eccb042a5b8f8e432d045
parent094f469172e00d6ab0a3130b0e01c83b3cf3a98d
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>
kernel/sched/fair.c