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From: Pavel Begunkov <asml.silence@gmail.com>
To: Jens Axboe <axboe@kernel.dk>, io-uring@vger.kernel.org
Cc: Dennis Zhou <dennis@kernel.org>, Tejun Heo <tj@kernel.org>,
	Christoph Lameter <cl@linux.com>, Joakim Hassila <joj@mac.com>
Subject: [PATCH 0/2] fix hangs with shared sqpoll
Date: Fri, 16 Apr 2021 01:22:50 +0100	[thread overview]
Message-ID: <cover.1618532491.git.asml.silence@gmail.com> (raw)

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


             reply	other threads:[~2021-04-16  0:27 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-16  0:22 Pavel Begunkov [this message]
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]           ` <20210417013115.15032-1-hdanton@sina.com>
2021-04-18 13:56             ` Pavel Begunkov

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