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From: Douglas Gilbert <dgilbert@interlog.com>
To: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James.Bottomley@HansenPartnership.com, linux-scsi@vger.kernel.org
Subject: Re: [PATCH] sg: fix iovec bugs introduced by the block layer conversion
Date: Thu, 02 Apr 2009 23:11:50 -0400	[thread overview]
Message-ID: <49D57E76.1030800@interlog.com> (raw)
In-Reply-To: <20090403091215K.fujita.tomonori@lab.ntt.co.jp>

FUJITA Tomonori wrote:
> This is a fix for another fallout of the block layer conversion (sorry).
> 
> This should be go into 2.6.28.y and 2.6.29.y.
> 
> =
> From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> Subject: [PATCH] sg: fix iovec bugs introduced by the block layer conversion
> 
> - needs to use copy_from_user for iovec before passing it to
> blk_rq_map_user_iov().
> 
> - before the block layer conversion, if ->dxfer_len and sum of iovec
> disagrees, the shorter one wins. However, currently sg returns
> -EINVAL. This restores the old behavior.
> 
> Cc: stable@kernel.org
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>

      reply	other threads:[~2009-04-03  3:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-03  0:12 [PATCH] sg: fix iovec bugs introduced by the block layer conversion FUJITA Tomonori
2009-04-03  3:11 ` Douglas Gilbert [this message]

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