From: Jens Axboe <axboe@kernel.dk>
To: Ming Lei <ming.lei@redhat.com>
Cc: linux-block@vger.kernel.org,
syzbot <syzbot+61acc40a49a3e46e25ea@syzkaller.appspotmail.com>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Al Viro <viro@zeniv.linux.org.uk>,
Matthew Wilcox <willy@infradead.org>,
stable@vger.kernel.org
Subject: Re: [PATCH V2] block: allow for_each_bvec to support zero len bvec
Date: Wed, 2 Sep 2020 11:55:16 -0600 [thread overview]
Message-ID: <fd90b22f-dd5f-15ef-2a9b-648a3260cea7@kernel.dk> (raw)
In-Reply-To: <20200817100055.2495905-1-ming.lei@redhat.com>
On 8/17/20 4:00 AM, Ming Lei wrote:
> Block layer usually doesn't support or allow zero-length bvec. Since
> commit 1bdc76aea115 ("iov_iter: use bvec iterator to implement
> iterate_bvec()"), iterate_bvec() switches to bvec iterator. However,
> Al mentioned that 'Zero-length segments are not disallowed' in iov_iter.
>
> Fixes for_each_bvec() so that it can move on after seeing one zero
> length bvec.
Applied, thanks.
--
Jens Axboe
prev parent reply other threads:[~2020-09-02 17:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-17 10:00 [PATCH V2] block: allow for_each_bvec to support zero len bvec Ming Lei
2020-09-02 1:06 ` Ming Lei
2020-09-02 17:55 ` Jens Axboe [this message]
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