linux-kernel - Re: [PATCH] block: check for proper length of iov entries earlier in blk_rq_map_user

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Message-ID: <4CF36C8C.1030506@kernel.dk>
Date:	Mon, 29 Nov 2010 10:04:12 +0100
From:	Jens Axboe <axboe@...nel.dk>
To:	Xiaotian Feng <dfeng@...hat.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] block: check for proper length of iov entries earlier
 in blk_rq_map_user_iov()

On 2010-11-29 10:00, Xiaotian Feng wrote:
> commit 9284bcf checks for proper length of iov entries in
> blk_rq_map_user_iov(). But if the map is unaligned, kernel
> will break out the loop without checking for the proper length.
> So we need to check the proper length before the unalign check.

Thanks, good catch. Applied.

-- 
Jens Axboe

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