| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 020/126] kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing | Date | Mon, 5 Apr 2021 10:53:02 +0200 |
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From: Jens Axboe <axboe@kernel.dk>
[ Upstream commit 15b2219facadec583c24523eed40fa45865f859f ]
Don't send fake signals to PF_IO_WORKER threads, they don't accept signals. Just treat them like kthreads in this regard, all they need is a wakeup as no forced kernel/user transition is needed.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org> --- kernel/freezer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/freezer.c b/kernel/freezer.c index dc520f01f99d..1a2d57d1327c 100644 --- a/kernel/freezer.c +++ b/kernel/freezer.c @@ -134,7 +134,7 @@ bool freeze_task(struct task_struct *p) return false; } - if (!(p->flags & PF_KTHREAD)) + if (!(p->flags & (PF_KTHREAD | PF_IO_WORKER))) fake_signal_wake_up(p); else wake_up_state(p, TASK_INTERRUPTIBLE); -- 2.30.1
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