diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2020-10-20 16:46:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-30 11:52:59 +0100 |
| commit | 8933a52534212ed6246653361f9b778ef0cd393b (patch) | |
| tree | d60bc83c2209fa4e9dbb65b9fd6448460f64bdd9 /kernel | |
| parent | 6d4250fe7d9804cced3fb507be750619e85b9c0f (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 e7e453492cff..77aa0e788b9b 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6100,12 +6100,8 @@ static void do_sched_yield(void) 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(); |