From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Kent Overstreet <koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
Cc: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
mpatocka-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
bharrosh-C4P08NqkoRlBDgjK7y7TUQ@public.gmane.org,
Jens Axboe <axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>,
NeilBrown <neilb-l3A5Bk7waGM@public.gmane.org>,
Alasdair Kergon <agk-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Jeff Garzik <jeff-o2qLIJkoznsdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH v6 12/13] block: Add bio_clone_bioset(), bio_clone_kmalloc()
Date: Wed, 22 Aug 2012 14:07:40 -0700 [thread overview]
Message-ID: <20120822210740.GM19212@google.com> (raw)
In-Reply-To: <1345655050-28199-13-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
On Wed, Aug 22, 2012 at 10:04:09AM -0700, Kent Overstreet wrote:
> Previously, there was bio_clone() but it only allocated from the fs bio
> set; as a result various users were open coding it and using
> __bio_clone().
>
> This changes bio_clone() to become bio_clone_bioset(), and then we add
> bio_clone() and bio_clone_kmalloc() as wrappers around it, making use of
> the functionality the last patch adedd.
>
> This will also help in a later patch changing how bio cloning works.
I'd prefer simply adding @bioset to bio_clone() so that the caller
always has to make the choice consciously. We're updating all the
callers anyway.
Thanks.
--
tejun
WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj@kernel.org>
To: Kent Overstreet <koverstreet@google.com>
Cc: linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org,
dm-devel@redhat.com, vgoyal@redhat.com, mpatocka@redhat.com,
bharrosh@panasas.com, Jens Axboe <axboe@kernel.dk>,
NeilBrown <neilb@suse.de>, Alasdair Kergon <agk@redhat.com>,
Jeff Garzik <jeff@garzik.org>
Subject: Re: [PATCH v6 12/13] block: Add bio_clone_bioset(), bio_clone_kmalloc()
Date: Wed, 22 Aug 2012 14:07:40 -0700 [thread overview]
Message-ID: <20120822210740.GM19212@google.com> (raw)
In-Reply-To: <1345655050-28199-13-git-send-email-koverstreet@google.com>
On Wed, Aug 22, 2012 at 10:04:09AM -0700, Kent Overstreet wrote:
> Previously, there was bio_clone() but it only allocated from the fs bio
> set; as a result various users were open coding it and using
> __bio_clone().
>
> This changes bio_clone() to become bio_clone_bioset(), and then we add
> bio_clone() and bio_clone_kmalloc() as wrappers around it, making use of
> the functionality the last patch adedd.
>
> This will also help in a later patch changing how bio cloning works.
I'd prefer simply adding @bioset to bio_clone() so that the caller
always has to make the choice consciously. We're updating all the
callers anyway.
Thanks.
--
tejun
next prev parent reply other threads:[~2012-08-22 21:07 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-22 17:03 [PATCH v6 00/13] Block cleanups Kent Overstreet
2012-08-22 17:03 ` Kent Overstreet
2012-08-22 17:03 ` [PATCH v6 01/13] block: Generalized bio pool freeing Kent Overstreet
2012-08-22 17:03 ` Kent Overstreet
[not found] ` <1345655050-28199-2-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 21:27 ` Nicholas A. Bellinger
2012-08-22 21:27 ` Nicholas A. Bellinger
2012-08-22 17:03 ` [PATCH v6 02/13] dm: Use bioset's front_pad for dm_rq_clone_bio_info Kent Overstreet
[not found] ` <1345655050-28199-3-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 18:32 ` Tejun Heo
2012-08-22 18:32 ` Tejun Heo
2012-08-22 21:30 ` Vivek Goyal
2012-08-22 21:30 ` Vivek Goyal
[not found] ` <20120822213010.GA8020-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-08-24 7:14 ` Kent Overstreet
2012-08-24 7:14 ` Kent Overstreet
[not found] ` <20120824071448.GF11977-jC9Py7bek1znysI04z7BkA@public.gmane.org>
2012-08-24 18:40 ` Vivek Goyal
2012-08-24 18:40 ` Vivek Goyal
2012-08-22 17:04 ` [PATCH v6 03/13] block: Add bio_reset() Kent Overstreet
[not found] ` <1345655050-28199-4-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 18:34 ` Tejun Heo
2012-08-22 18:34 ` Tejun Heo
2012-08-22 19:51 ` Tejun Heo
2012-08-22 17:04 ` [PATCH v6 04/13] pktcdvd: Switch to bio_kmalloc() Kent Overstreet
2012-08-22 17:04 ` Kent Overstreet
[not found] ` <1345655050-28199-5-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 19:55 ` Tejun Heo
2012-08-22 19:55 ` Tejun Heo
[not found] ` <20120822195546.GG19212-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-28 23:19 ` Jiri Kosina
2012-08-28 23:19 ` Jiri Kosina
2012-08-29 4:35 ` Peter Osterlund
2012-09-03 16:15 ` Jiri Kosina
2012-09-03 16:15 ` Jiri Kosina
2012-08-22 17:04 ` [PATCH v6 05/13] block: Kill bi_destructor Kent Overstreet
2012-08-22 17:04 ` Kent Overstreet
[not found] ` <1345655050-28199-6-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 20:00 ` Tejun Heo
2012-08-22 20:00 ` Tejun Heo
[not found] ` <20120822200032.GH19212-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-24 5:09 ` Kent Overstreet
2012-08-24 5:09 ` Kent Overstreet
2012-08-22 17:04 ` [PATCH v6 06/13] block: Consolidate bio_alloc_bioset(), bio_kmalloc() Kent Overstreet
2012-08-22 17:04 ` Kent Overstreet
[not found] ` <1345655050-28199-7-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 20:17 ` Tejun Heo
2012-08-22 20:17 ` Tejun Heo
[not found] ` <20120822201730.GI19212-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-24 5:04 ` Kent Overstreet
2012-08-24 5:04 ` Kent Overstreet
[not found] ` <20120824050400.GA11977-jC9Py7bek1znysI04z7BkA@public.gmane.org>
2012-08-24 20:08 ` Tejun Heo
2012-08-24 20:08 ` Tejun Heo
2012-08-22 17:04 ` [PATCH v6 07/13] block: Avoid deadlocks with bio allocation by stacking drivers Kent Overstreet
2012-08-22 20:30 ` Tejun Heo
2012-08-22 20:30 ` Tejun Heo
2012-08-24 5:55 ` Kent Overstreet
[not found] ` <20120824055554.GC11977-jC9Py7bek1znysI04z7BkA@public.gmane.org>
2012-08-24 20:28 ` Tejun Heo
2012-08-24 20:28 ` Tejun Heo
2012-08-22 17:04 ` [PATCH v6 11/13] block: Rework bio_pair_split() Kent Overstreet
[not found] ` <1345655050-28199-12-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 21:04 ` Tejun Heo
2012-08-22 21:04 ` Tejun Heo
[not found] ` <20120822210410.GL19212-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-24 2:25 ` Martin K. Petersen
2012-08-24 2:25 ` Martin K. Petersen
[not found] ` <yq1y5l5hvpw.fsf-+q57XtR/GgMb6DWv4sQWN6xOck334EZe@public.gmane.org>
2012-08-24 10:37 ` Kent Overstreet
2012-08-24 10:37 ` Kent Overstreet
2012-08-24 20:58 ` Tejun Heo
2012-08-24 20:58 ` Tejun Heo
2012-08-24 10:30 ` Kent Overstreet
2012-08-24 20:53 ` Tejun Heo
[not found] ` <1345655050-28199-1-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 17:04 ` [PATCH v6 08/13] block: Add an explicit bio flag for bios that own their bvec Kent Overstreet
2012-08-22 17:04 ` Kent Overstreet
[not found] ` <1345655050-28199-9-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 17:43 ` Adrian Bunk
2012-08-22 17:43 ` Adrian Bunk
[not found] ` <20120822174351.GA27453-c9qLp6CXzmZPEsXTsnYjsA@public.gmane.org>
2012-08-22 19:22 ` Kent Overstreet
2012-08-22 19:22 ` Kent Overstreet
2012-08-22 20:00 ` Adrian Bunk
2012-08-22 20:00 ` Adrian Bunk
[not found] ` <20120822200038.GB27453-c9qLp6CXzmZPEsXTsnYjsA@public.gmane.org>
2012-08-28 17:23 ` Kent Overstreet
2012-08-28 17:23 ` Kent Overstreet
2012-08-22 17:04 ` [PATCH v6 09/13] block: Rename bio_split() -> bio_pair_split() Kent Overstreet
2012-08-22 17:04 ` Kent Overstreet
2012-08-22 17:04 ` [PATCH v6 10/13] block: Introduce new bio_split() Kent Overstreet
2012-08-22 17:04 ` Kent Overstreet
[not found] ` <1345655050-28199-11-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 20:46 ` Tejun Heo
2012-08-22 20:46 ` Tejun Heo
2012-08-22 17:04 ` [PATCH v6 12/13] block: Add bio_clone_bioset(), bio_clone_kmalloc() Kent Overstreet
2012-08-22 17:04 ` Kent Overstreet
[not found] ` <1345655050-28199-13-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 17:13 ` Jeff Garzik
2012-08-22 17:13 ` Jeff Garzik
2012-08-22 21:07 ` Tejun Heo [this message]
2012-08-22 21:07 ` Tejun Heo
[not found] ` <20120822210740.GM19212-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-24 6:24 ` Kent Overstreet
2012-08-24 6:24 ` Kent Overstreet
[not found] ` <20120824062418.GD11977-jC9Py7bek1znysI04z7BkA@public.gmane.org>
2012-08-24 20:36 ` Tejun Heo
2012-08-24 20:36 ` Tejun Heo
2012-08-23 18:00 ` [PATCH v6 00/13] Block cleanups Vivek Goyal
2012-08-23 18:00 ` Vivek Goyal
[not found] ` <20120823180041.GK12232-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-08-24 12:46 ` Kent Overstreet
2012-08-24 12:46 ` Kent Overstreet
2012-08-22 17:04 ` [PATCH v6 13/13] block: Only clone bio vecs that are in use Kent Overstreet
[not found] ` <1345655050-28199-14-git-send-email-koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-22 21:10 ` Tejun Heo
2012-08-22 21:10 ` Tejun Heo
[not found] ` <20120822211045.GN19212-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-24 7:05 ` Kent Overstreet
2012-08-24 7:05 ` Kent Overstreet
[not found] ` <20120824070508.GE11977-jC9Py7bek1znysI04z7BkA@public.gmane.org>
2012-08-24 20:42 ` Tejun Heo
2012-08-24 20:42 ` Tejun Heo
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