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* [PATCH 0/2] fix hangs with shared sqpoll
@ 2021-04-16  0:22 Pavel Begunkov
  2021-04-16  0:22 ` [PATCH 1/2] percpu_ref: add percpu_ref_atomic_count() Pavel Begunkov
                   ` (2 more replies)
  0 siblings, 3 replies; 17+ messages in thread
From: Pavel Begunkov @ 2021-04-16  0:22 UTC (permalink / raw)
  To: Jens Axboe, io-uring
  Cc: Dennis Zhou, Tejun Heo, Christoph Lameter, Joakim Hassila

Late catched 5.12 bug with nasty hangs. Thanks Jens for a reproducer.

Pavel Begunkov (2):
  percpu_ref: add percpu_ref_atomic_count()
  io_uring: fix shared sqpoll cancellation hangs

 fs/io_uring.c                   |  5 +++--
 include/linux/percpu-refcount.h |  1 +
 lib/percpu-refcount.c           | 26 ++++++++++++++++++++++++++
 3 files changed, 30 insertions(+), 2 deletions(-)

-- 
2.24.0


^ permalink raw reply	[flat|nested] 17+ messages in thread

end of thread, other threads:[~2021-04-19  2:03 UTC | newest]

Thread overview: 17+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-04-16  0:22 [PATCH 0/2] fix hangs with shared sqpoll Pavel Begunkov
2021-04-16  0:22 ` [PATCH 1/2] percpu_ref: add percpu_ref_atomic_count() Pavel Begunkov
2021-04-16  4:45   ` Dennis Zhou
2021-04-16 13:16     ` Pavel Begunkov
2021-04-16 14:10       ` Ming Lei
2021-04-16 14:37         ` Dennis Zhou
2021-04-19  2:03           ` Ming Lei
2021-04-16 15:31   ` Bart Van Assche
2021-04-16 15:34     ` Jens Axboe
2021-04-16  0:22 ` [PATCH 2/2] io_uring: fix shared sqpoll cancellation hangs Pavel Begunkov
2021-04-16  0:26 ` [PATCH 0/2] fix hangs with shared sqpoll Pavel Begunkov
2021-04-16 13:04   ` Jens Axboe
2021-04-16 13:12     ` Pavel Begunkov
2021-04-16 13:58       ` Jens Axboe
2021-04-16 14:09         ` Pavel Begunkov
2021-04-16 14:42           ` Pavel Begunkov
     [not found]           ` <[email protected]>
2021-04-18 13:56             ` Pavel Begunkov

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