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| author | Peter Zijlstra <peterz@infradead.org> | 2015-09-28 18:02:03 +0200 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2019-05-02 18:30:05 +0200 |
| commit | 559fd8158b1f63102feece0dcc05dacb357bd0f6 (patch) | |
| tree | a7caf11f7c93043748042027c4a1f0e05de5156d /drivers | |
| parent | 48db9eb1237317a087d36f5ecd6e7ac96ff23b81 (diff) | |
sched/core: Rework TASK_DEAD preemption exception
TASK_DEAD is special in that the final schedule call from do_exit()
must be done with preemption disabled.
This means we end up scheduling with a preempt_count() higher than
usual (3 instead of the 'expected' 2).
Since future patches will want to rely on an invariant
preempt_count() value during schedule, fix this up.
Change-Id: Icd3a40be4171553bb2d71fd7a82b6fac55218a12
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions