From: Thomas Gleixner <tglx@linutronix.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org
Subject: [GIT pull] sched/urgent for 5.3-rc5
Date: Sun, 25 Aug 2019 09:43:00 -0000 [thread overview]
Message-ID: <156672618029.19810.6692216639070045415.tglx@nanos.tec.linutronix.de> (raw)
In-Reply-To: 156672618029.19810.8479315461492191933.tglx@nanos.tec.linutronix.de
Linus,
please pull the latest sched-urgent-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-urgent-for-linus
up to: b0fdc01354f4: sched/core: Schedule new worker even if PI-blocked
Handle the worker management in situations where a task is scheduled out on
a PI lock contention correctly and schedule a new worker if possible.
Thanks,
tglx
------------------>
Sebastian Andrzej Siewior (1):
sched/core: Schedule new worker even if PI-blocked
kernel/sched/core.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 2b037f195473..010d578118d6 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3904,7 +3904,7 @@ void __noreturn do_task_dead(void)
static inline void sched_submit_work(struct task_struct *tsk)
{
- if (!tsk->state || tsk_is_pi_blocked(tsk))
+ if (!tsk->state)
return;
/*
@@ -3920,6 +3920,9 @@ static inline void sched_submit_work(struct task_struct *tsk)
preempt_enable_no_resched();
}
+ if (tsk_is_pi_blocked(tsk))
+ return;
+
/*
* If we are going to sleep and we have plugged IO queued,
* make sure to submit it to avoid deadlocks.
next prev parent reply other threads:[~2019-08-25 9:45 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-25 9:43 [GIT pull] irq/urgent for 5.3-rc5 Thomas Gleixner
2019-08-25 9:43 ` [GIT pull] x86/urgent " Thomas Gleixner
2019-08-25 17:18 ` Linus Torvalds
2019-08-25 17:30 ` Borislav Petkov
2019-08-25 17:37 ` Linus Torvalds
2019-08-25 18:29 ` Borislav Petkov
2019-08-25 18:38 ` Linus Torvalds
2019-08-25 19:32 ` Borislav Petkov
2019-08-25 19:35 ` Linus Torvalds
2019-08-25 19:49 ` Borislav Petkov
2019-08-25 19:59 ` Linus Torvalds
2019-08-25 20:17 ` Borislav Petkov
2019-08-26 12:53 ` Borislav Petkov
2019-08-27 16:55 ` Linus Torvalds
2019-08-27 17:39 ` Borislav Petkov
2019-08-27 17:46 ` Linus Torvalds
2019-08-27 17:59 ` Borislav Petkov
2019-08-28 15:20 ` David Sterba
2019-08-28 15:53 ` David Sterba
2019-10-02 19:09 ` [tip: x86/cpu] x86/rdrand: Sanity-check RDRAND output tip-bot2 for Borislav Petkov
2019-08-25 17:40 ` [GIT pull] x86/urgent for 5.3-rc5 pr-tracker-bot
2019-08-25 9:43 ` [GIT pull] timers/urgent " Thomas Gleixner
2019-08-25 17:40 ` pr-tracker-bot
2019-08-25 9:43 ` [GIT pull] perf/urgent " Thomas Gleixner
2019-08-25 17:40 ` pr-tracker-bot
2019-08-25 9:43 ` Thomas Gleixner [this message]
2019-08-25 17:40 ` [GIT pull] sched/urgent " pr-tracker-bot
2019-08-25 17:40 ` [GIT pull] irq/urgent " pr-tracker-bot
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