linux-kernel - Re: [dm-devel] [PATCH v2 01/26] block: Convert integrity to bvec_alloc

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Message-ID: <yq1wqzzrpy1.fsf@sermon.lab.mkp.net>
Date:	Wed, 12 Sep 2012 15:39:18 -0400
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Kent Overstreet <koverstreet@...gle.com>
Cc:	Vivek Goyal <vgoyal@...hat.com>, linux-bcache@...r.kernel.org,
	linux-kernel@...r.kernel.org, dm-devel@...hat.com, axboe@...nel.dk,
	tj@...nel.org, "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: Re: [dm-devel] [PATCH v2 01/26] block: Convert integrity to bvec_alloc_bs(), and a bugfix

>>>>> "Kent" == Kent Overstreet <koverstreet@...gle.com> writes:

Kent,

Kent> To fix the bug first, I'd have to reorder struct bio_pair and then
Kent> just delete two lines of code from bio_integrity_split(). But the
Kent> reordering is unnecessary with the refactoring.

Well, a bug is a bug and the fix needs to go into stable. So we will
need a patch that does not depend on your changes.

I don't have a problem with adding a pointer so clones can point to the
parent's vector. But embedding the vector into the bip was a feature.
If you check the git log you'll see that originally I did use separate
vector allocations.

-- 
Martin K. Petersen	Oracle Linux Engineering
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