From: Yu Kuai <yukuai1@huaweicloud.com>
To: Jens Axboe <axboe@kernel.dk>, Dan Carpenter <error27@gmail.com>,
linux-block@vger.kernel.org
Cc: Julia Lawall <julia.lawall@inria.fr>,
Luis Chamberlain <mcgrof@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Hongchen Zhang <zhanghongchen@loongson.cn>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
"Christian Brauner (Microsoft)" <brauner@kernel.org>,
David Howells <dhowells@redhat.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Eric Dumazet <edumazet@google.com>,
"Fabio M. De Francesco" <fmdefrancesco@gmail.com>,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
maobibo <maobibo@loongson.cn>,
Matthew Wilcox <willy@infradead.org>,
Sedat Dilek <sedat.dilek@gmail.com>,
"yukuai (C)" <yukuai3@huawei.com>
Subject: Re: block: sleeping in atomic warnings
Date: Wed, 8 Feb 2023 11:15:24 +0800 [thread overview]
Message-ID: <339bf113-3ac1-7e62-3cca-45bb8b53d291@huaweicloud.com> (raw)
In-Reply-To: <4321724d-9a24-926c-5d2d-5d5d902bda72@kernel.dk>
Hi,
在 2023/02/08 2:31, Jens Axboe 写道:
>> block/blk-wbt.c:843 wbt_init() warn: sleeping in atomic context
>> ioc_qos_write() <- disables preempt
>> -> wbt_enable_default()
>> -> wbt_init()
>
> Also definitely a bug.
>
This won't happen currently, wbt_init() will be called while
initializing device, and later wbt_enable_devault() from iocost won't
call wbt_init().
However, we might support rq_qos destruction dynamically in the
future, I'll fix this warning.
Thanks,
Kuai
next prev parent reply other threads:[~2023-02-08 3:15 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-29 6:04 [PATCH v4] pipe: use __pipe_{lock,unlock} instead of spinlock Hongchen Zhang
2023-01-29 7:33 ` Linus Torvalds
2023-02-03 2:24 ` Hongchen Zhang
2023-02-06 15:58 ` Luis Chamberlain
2023-02-06 16:07 ` Linus Torvalds
2023-02-06 16:13 ` Julia Lawall
2023-02-06 16:45 ` Dan Carpenter
2023-02-06 17:54 ` Luis Chamberlain
2023-02-07 7:02 ` Dan Carpenter
2023-02-06 18:25 ` Linus Torvalds
2023-02-07 13:37 ` xen: sleeping in atomic warnings Dan Carpenter
2023-02-07 14:03 ` Juergen Gross
2023-02-07 14:06 ` block: " Dan Carpenter
2023-02-07 16:15 ` Linus Torvalds
2023-02-07 17:53 ` Eric Biggers
2023-02-07 18:24 ` Linus Torvalds
2023-02-07 18:36 ` Eric Biggers
2023-02-07 18:57 ` Linus Torvalds
2023-02-07 19:09 ` Linus Torvalds
2023-02-07 19:35 ` Eric Biggers
2023-02-07 19:49 ` Linus Torvalds
2023-02-08 6:53 ` Eric Biggers
2023-02-07 18:31 ` Jens Axboe
2023-02-08 3:15 ` Yu Kuai [this message]
2023-02-03 1:42 ` [PATCH v4] pipe: use __pipe_{lock,unlock} instead of spinlock Hongchen Zhang
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