From: Ming Lei <ming.lei@redhat.com>
To: Yu Kuai <yukuai3@huawei.com>
Cc: josef@toxicpanda.com, axboe@kernel.dk, hch@infradead.org,
linux-block@vger.kernel.org, nbd@other.debian.org,
linux-kernel@vger.kernel.org, yi.zhang@huawei.com
Subject: Re: [patch v8 4/7] nbd: don't start request if nbd_queue_rq() failed
Date: Thu, 16 Sep 2021 20:48:24 +0800 [thread overview]
Message-ID: <YUM9GIBBttUG9DcX@T590> (raw)
In-Reply-To: <20210916093350.1410403-5-yukuai3@huawei.com>
On Thu, Sep 16, 2021 at 05:33:47PM +0800, Yu Kuai wrote:
> commit 6a468d5990ec ("nbd: don't start req until after the dead
> connection logic") move blk_mq_start_request() from nbd_queue_rq()
> to nbd_handle_cmd() to skip starting request if the connection is
> dead. However, request is still started in other error paths.
>
> Currently, blk_mq_end_request() will be called immediately if
> nbd_queue_rq() failed, thus start request in such situation is
> useless. So remove blk_mq_start_request() from error paths in
> nbd_handle_cmd().
>
> Signed-off-by: Yu Kuai <yukuai3@huawei.com>
> ---
Reviewed-by: Ming Lei <ming.lei@redhat.com>
--
Ming
next prev parent reply other threads:[~2021-09-16 12:48 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-16 9:33 [patch v8 0/7] handle unexpected message from server Yu Kuai
2021-09-16 9:33 ` [patch v8 1/7] nbd: don't handle response without a corresponding request message Yu Kuai
2021-09-16 9:33 ` [patch v8 2/7] nbd: make sure request completion won't concurrent Yu Kuai
2021-09-16 9:33 ` [patch v8 3/7] nbd: check sock index in nbd_read_stat() Yu Kuai
2021-09-19 10:34 ` yukuai (C)
2021-09-22 9:22 ` Ming Lei
2021-09-22 12:12 ` Eric Blake
2021-09-22 12:21 ` yukuai (C)
2021-09-22 15:56 ` Wouter Verhelst
2021-09-23 0:29 ` Ming Lei
2021-09-16 9:33 ` [patch v8 4/7] nbd: don't start request if nbd_queue_rq() failed Yu Kuai
2021-09-16 12:48 ` Ming Lei [this message]
2021-09-16 9:33 ` [patch v8 5/7] nbd: clean up return value checking of sock_xmit() Yu Kuai
2021-09-16 12:49 ` Ming Lei
2021-09-16 9:33 ` [patch v8 6/7] nbd: partition nbd_read_stat() into nbd_read_reply() and nbd_handle_reply() Yu Kuai
2021-09-16 12:53 ` Ming Lei
2021-09-16 9:33 ` [patch v8 7/7] nbd: fix uaf in nbd_handle_reply() Yu Kuai
2021-09-16 12:58 ` Ming Lei
2021-09-16 13:10 ` yukuai (C)
2021-09-16 13:55 ` Ming Lei
2021-09-16 14:05 ` yukuai (C)
2021-09-16 14:18 ` [PATCH v9] " Yu Kuai
2021-09-17 3:33 ` Ming Lei
2021-10-17 13:09 ` Jens Axboe
2021-09-23 13:33 ` [patch v8 0/7] handle unexpected message from server yukuai (C)
2021-09-29 12:54 ` yukuai (C)
2021-10-08 7:17 ` yukuai (C)
2021-10-15 8:19 ` yukuai (C)
2021-10-15 16:08 ` Josef Bacik
2021-10-17 13:09 ` Jens Axboe
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