From: Jens Axboe <axboe@kernel.dk>
To: jack@suse.cz, osandov@fb.com, yukuai1@huaweicloud.com
Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
yi.zhang@huawei.com, yukuai3@huawei.com
Subject: Re: [PATCH] sbitmap: fix possible io hung due to lost wakeup
Date: Tue, 23 Aug 2022 07:37:48 -0600 [thread overview]
Message-ID: <166126186831.27028.2544657181662350295.b4-ty@kernel.dk> (raw)
In-Reply-To: <20220803121504.212071-1-yukuai1@huaweicloud.com>
On Wed, 3 Aug 2022 20:15:04 +0800, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@huawei.com>
>
> There are two problems can lead to lost wakeup:
>
> 1) invalid wakeup on the wrong waitqueue:
>
> For example, 2 * wake_batch tags are put, while only wake_batch threads
> are woken:
>
> [...]
Applied, thanks!
[1/1] sbitmap: fix possible io hung due to lost wakeup
commit: 040b83fcecfb86f3225d3a5de7fd9b3fbccf83b4
Best regards,
--
Jens Axboe
next prev parent reply other threads:[~2022-08-23 17:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-03 12:15 [PATCH] sbitmap: fix possible io hung due to lost wakeup Yu Kuai
2022-08-13 5:58 ` Yu Kuai
2022-08-23 13:37 ` Jens Axboe [this message]
2022-09-06 21:27 ` Keith Busch
2022-09-07 1:12 ` Yu Kuai
2022-09-07 10:23 ` Jan Kara
2022-09-07 14:13 ` Keith Busch
2022-09-07 16:41 ` Jan Kara
2022-09-07 18:20 ` Keith Busch
2022-09-08 9:33 ` Jan Kara
2022-09-08 9:45 ` Yu Kuai
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