linux-kernel - Re: [PATCH] block: make sure big bio is splitted into at most 256 bvecs

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Message-ID: <20160406003604.GE31161@kmo-pixel>
Date:	Tue, 5 Apr 2016 16:36:04 -0800
From:	Kent Overstreet <kent.overstreet@...il.com>
To:	Shaohua Li <shli@...com>
Cc:	Jeff Moyer <jmoyer@...hat.com>, Ming Lei <ming.lei@...onical.com>,
	Jens Axboe <axboe@...com>, linux-kernel@...r.kernel.org,
	linux-block@...r.kernel.org, Christoph Hellwig <hch@...radead.org>,
	Eric Wheeler <bcache@...ts.ewheeler.net>,
	Sebastian Roesner <sroesner-kernelorg@...sner-online.de>,
	"4.2+" <stable@...r.kernel.org>
Subject: Re: [PATCH] block: make sure big bio is splitted into at most 256
 bvecs

On Tue, Apr 05, 2016 at 05:30:07PM -0700, Shaohua Li wrote:
> this one:
> http://marc.info/?l=linux-kernel&m=145926976808760&w=2

Ah. that patch won't actually fix the bug, since md isn't using
blk_default_limits, it's using blk_set_stacking_limits().