From: Tejun Heo <tj@kernel.org>
To: koverstreet@google.com
Cc: linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org,
dm-devel@redhat.com, linux-fsdevel@vger.kernel.org,
axboe@kernel.dk, agk@redhat.com, neilb@suse.de
Subject: Re: [PATCH 04/13] block: Add bio_clone_kmalloc()
Date: Fri, 18 May 2012 09:09:03 -0700 [thread overview]
Message-ID: <20120518160903.GD19388@google.com> (raw)
In-Reply-To: <1c7c2d4b89bc3d0e907608cec37bcf0ee50f4c0e.1337308722.git.koverstreet@google.com>
On Thu, May 17, 2012 at 10:59:51PM -0400, koverstreet@google.com wrote:
> @@ -729,7 +729,7 @@ static struct bio *bio_chain_clone(struct bio **old, struct bio **next,
> }
>
> while (old_chain && (total < len)) {
> - tmp = bio_kmalloc(gfpmask, old_chain->bi_max_vecs);
> + tmp = bio_clone_kmalloc(old_chain, gfpmask);
> if (!tmp)
> goto err_out;
>
> @@ -751,13 +751,9 @@ static struct bio *bio_chain_clone(struct bio **old, struct bio **next,
> if (!bp)
> goto err_out;
>
> - __bio_clone(tmp, &bp->bio1);
> -
This effectively swaps the order of bio_split() and __bio_clone(). Is
that safe? Also, please cc the maintainer.
Thanks.
--
tejun
next prev parent reply other threads:[~2012-05-18 16:09 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-18 2:59 [PATCH 00/13] Block cleanups (for bcache) koverstreet
2012-05-18 2:59 ` [PATCH 01/13] block: Generalized bio pool freeing koverstreet
2012-05-18 15:55 ` Tejun Heo
2012-05-18 16:14 ` [dm-devel] " Alasdair G Kergon
2012-05-18 2:59 ` [PATCH 02/13] dm: kill dm_rq_bio_destructor koverstreet
2012-05-18 15:57 ` Tejun Heo
2012-05-18 16:43 ` [dm-devel] " Alasdair G Kergon
2012-05-18 18:50 ` Kent Overstreet
2012-05-22 4:29 ` Jun'ichi Nomura
2012-05-18 2:59 ` [PATCH 03/13] block: Add bio_clone_bioset() koverstreet
2012-05-18 16:05 ` Tejun Heo
2012-05-18 20:31 ` Kent Overstreet
2012-05-18 16:11 ` [dm-devel] " Vivek Goyal
2012-05-18 18:55 ` Kent Overstreet
2012-05-18 2:59 ` [PATCH 04/13] block: Add bio_clone_kmalloc() koverstreet
2012-05-18 16:09 ` Tejun Heo [this message]
2012-05-18 20:39 ` Kent Overstreet
2012-05-18 16:45 ` Boaz Harrosh
2012-05-18 2:59 ` [PATCH 05/13] block: Only clone bio vecs that are in use koverstreet
2012-05-18 16:13 ` Tejun Heo
2012-05-18 21:14 ` Kent Overstreet
2012-05-18 2:59 ` [PATCH 06/13] block: Add bio_reset() koverstreet
2012-05-18 16:16 ` Tejun Heo
2012-05-18 21:48 ` Kent Overstreet
2012-05-18 2:59 ` [PATCH 07/13] pktcdvd: Switch to bio_kmalloc() koverstreet
2012-05-18 16:18 ` Tejun Heo
2012-05-18 2:59 ` [PATCH 08/13] block: Kill bi_destructor koverstreet
2012-05-18 16:21 ` Tejun Heo
2012-05-18 22:21 ` Kent Overstreet
2012-05-18 2:59 ` [PATCH 09/13] block: Add an explicit bio flag for bios that own their bvec koverstreet
2012-05-18 16:30 ` Tejun Heo
2012-05-18 21:49 ` Kent Overstreet
2012-05-18 17:07 ` Boaz Harrosh
2012-05-18 2:59 ` [PATCH 10/13] block: Rework bio splitting koverstreet
2012-05-18 17:07 ` Tejun Heo
2012-05-18 17:46 ` Boaz Harrosh
2012-05-18 2:59 ` [PATCH 11/13] Closures koverstreet
2012-05-18 17:08 ` Tejun Heo
2012-05-18 2:59 ` [PATCH 12/13] Make generic_make_request handle arbitrarily large bios koverstreet
2012-05-18 8:05 ` NeilBrown
2012-05-18 8:14 ` Kent Overstreet
2012-05-21 17:17 ` [dm-devel] " Vivek Goyal
2012-05-21 17:55 ` Kent Overstreet
2012-05-21 18:32 ` Vivek Goyal
2012-05-18 17:52 ` Tejun Heo
2012-05-19 0:59 ` [dm-devel] " Alasdair G Kergon
2012-05-18 22:48 ` Mikulas Patocka
2012-05-18 3:00 ` [PATCH 13/13] Gut bio_add_page() koverstreet
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