Re: [dm-devel] [PATCH 12/13] Make generic_make_request handle arbitrarily large bios

[PATCH 00/13] Block cleanups (for bcache) · <hidden> · 2012-05-18
[PATCH 01/13] block: Generalized bio pool freeing · <hidden> · 2012-05-18
[PATCH 02/13] dm: kill dm_rq_bio_destructor · <hidden> · 2012-05-18
Re: [PATCH 02/13] dm: kill dm_rq_bio_destructor · Tejun Heo <tj@kernel.org> · 2012-05-18
[PATCH 03/13] block: Add bio_clone_bioset() · <hidden> · 2012-05-18
Re: [PATCH 03/13] block: Add bio_clone_bioset() · Tejun Heo <tj@kernel.org> · 2012-05-18
Re: [PATCH 03/13] block: Add bio_clone_bioset() · Kent Overstreet <hidden> · 2012-05-18
[PATCH 04/13] block: Add bio_clone_kmalloc() · <hidden> · 2012-05-18
Re: [PATCH 04/13] block: Add bio_clone_kmalloc() · Boaz Harrosh <hidden> · 2012-05-18
[PATCH 05/13] block: Only clone bio vecs that are in use · <hidden> · 2012-05-18
Re: [PATCH 05/13] block: Only clone bio vecs that are in use · Tejun Heo <tj@kernel.org> · 2012-05-18
Re: [PATCH 05/13] block: Only clone bio vecs that are in use · Kent Overstreet <hidden> · 2012-05-18
[PATCH 06/13] block: Add bio_reset() · <hidden> · 2012-05-18
Re: [PATCH 06/13] block: Add bio_reset() · Tejun Heo <tj@kernel.org> · 2012-05-18
[PATCH 07/13] pktcdvd: Switch to bio_kmalloc() · <hidden> · 2012-05-18
[PATCH 08/13] block: Kill bi_destructor · <hidden> · 2012-05-18
[PATCH 09/13] block: Add an explicit bio flag for bios that own their bvec · <hidden> · 2012-05-18
[PATCH 10/13] block: Rework bio splitting · <hidden> · 2012-05-18
Re: [PATCH 10/13] block: Rework bio splitting · Boaz Harrosh <hidden> · 2012-05-18
[PATCH 12/13] Make generic_make_request handle arbitrarily large bios · <hidden> · 2012-05-18
Re: [PATCH 12/13] Make generic_make_request handle arbitrarily large bios · NeilBrown <hidden> · 2012-05-18
Re: [PATCH 12/13] Make generic_make_request handle arbitrarily large bios · Tejun Heo <tj@kernel.org> · 2012-05-18
Re: [dm-devel] [PATCH 12/13] Make generic_make_request handle arbitrarily large bios · Alasdair G Kergon <agk@redhat.com> · 2012-05-19
[PATCH 13/13] Gut bio_add_page() · <hidden> · 2012-05-18

From: Alasdair G Kergon <agk@redhat.com>
Date: 2012-05-19 00:59:43
Also in: dm-devel, linux-fsdevel, lkml

On Fri, May 18, 2012 at 10:52:16AM -0700, Tejun Heo wrote:

Does this by any chance allow killing ->merge_bvec_fn()?

merge_bvec also has an impact on efficiency.

Why create a too-large bio in the first place if it's only going to have to
get split up again?

If a change like this goes in, the various trade-offs should be re-examined.

Alasdair

`h`	back out one level
`j`	next message in thread
`k`	previous message in thread
`l`	drill in
`Esc`	close help / fold thread tree
`?`	toggle this help