linux-kernel - Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken

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Message-ID: <CAF1ivSYgdecgg+CAxZ7hpYiT92NPH3cF-SUB6xpYgAhNC0S_8A@mail.gmail.com>
Date:	Sat, 12 Mar 2016 00:04:17 -0800
From:	Ming Lin <mlin@...nel.org>
To:	Kent Overstreet <kent.overstreet@...il.com>
Cc:	Jens Axboe <axboe@...nel.dk>, lkml <linux-kernel@...r.kernel.org>,
	Ming Lei <ming.lei@...onical.com>
Subject: Re: e827091cb1 "block: merge: get the 1st and last bvec via helpers" broken

On Fri, Mar 11, 2016 at 11:43 PM, Kent Overstreet
<kent.overstreet@...il.com> wrote:
> I don't know exactly how it's broken, but with that patch segment counting is
> broken - I'm seeing blk_rq_map_sg() overrun the end of the sgtable.
>
> I suggest reverting it for 4.5...

+ Ming Lei