diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2020-10-20 16:46:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-29 13:46:51 +0100 |
| commit | 1295b6d7e4c958c1667ea9641890c328ec5d822b (patch) | |
| tree | 5e99d0e8d670771bbda7a83d6ce7070782b7c696 /kernel | |
| parent | f4689cad10f5c92d1a2f5589ce1fba1c84b724e2 (diff) | |
sched: Reenable interrupts in do_sched_yield()
[ Upstream commit 345a957fcc95630bf5535d7668a59ed983eb49a7 ]
do_sched_yield() invokes schedule() with interrupts disabled which is
not allowed. This goes back to the pre git era to commit a6efb709806c
("[PATCH] irqlock patch 2.5.27-H6") in the history tree.
Reenable interrupts and remove the misleading comment which "explains" it.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/87r1pt7y5c.fsf@nanos.tec.linutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/core.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index c5599174e745..7cedada731c1 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4826,12 +4826,8 @@ SYSCALL_DEFINE0(sched_yield) schedstat_inc(rq->yld_count); current->sched_class->yield_task(rq); - /* - * Since we are going to call schedule() anyway, there's - * no need to preempt or enable interrupts: - */ preempt_disable(); - rq_unlock(rq, &rf); + rq_unlock_irq(rq, &rf); sched_preempt_enable_no_resched(); schedule(); |