From: Christoph Hellwig <hch@lst.de>
To: NeilBrown <neilb@suse.de>
Cc: Ming Lin <mlin@kernel.org>, lkml <linux-kernel@vger.kernel.org>,
Christoph Hellwig <hch@lst.de>,
Kent Overstreet <kent.overstreet@gmail.com>,
Jens Axboe <axboe@kernel.dk>, Dongsu Park <dpark@posteo.net>,
linux-raid@vger.kernel.org
Subject: Re: [PATCH v4 06/11] md/raid5: get rid of bio_fits_rdev()
Date: Mon, 25 May 2015 16:17:08 +0200 [thread overview]
Message-ID: <20150525141708.GA26249@lst.de> (raw)
In-Reply-To: <20150525175414.6a1fc33d@notabene.brown>
On Mon, May 25, 2015 at 05:54:14PM +1000, NeilBrown wrote:
> Did I write that? I guess I did :-(
> I meant *after*. Don't get rid of bio_fits_rdev until split_bio is in
> chunk_aligned_read().
I suspect the whole series could use some reordering.
patch 1:
add ->bio_split and blk_queue_split
patch 2..n:
one for each non-trivial driver that implements ->merge_bvec_fn to
remove it and instead split bios in ->make_request. The md patch
to do the right thing in chunk_aligned_read goes into the general
md patch here. The bcache patch also goes into this series.
patch n+1:
- add blk_queue_split calls for remaining trivial drivers
patch n+2:
- remove ->merge_bvec_fn and checking of max_sectors a for all
drivers, simplify bio_add_page
patch n+2:
- remove splitting in blkdev_issue_discard
patch n+3
- remove bio_fits_rdev
patch n+4
- remove bio_get_nr_vecs
patch n+4
- use bio_add_page
patch n+5
- update documentation
next prev parent reply other threads:[~2015-05-25 14:17 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-22 18:18 [PATCH v4 00/11] simplify block layer based on immutable biovecs Ming Lin
2015-05-22 18:18 ` [PATCH v4 01/11] block: make generic_make_request handle arbitrarily sized bios Ming Lin
2015-05-25 5:46 ` NeilBrown
2015-05-26 14:36 ` Mike Snitzer
2015-05-26 15:02 ` Ming Lin
2015-05-26 15:34 ` Alasdair G Kergon
2015-05-26 23:06 ` NeilBrown
2015-05-27 0:40 ` [dm-devel] " Alasdair G Kergon
2015-05-27 8:20 ` Christoph Hellwig
2015-05-26 16:04 ` Mike Snitzer
2015-05-26 17:17 ` Ming Lin
2015-05-27 23:42 ` Ming Lin
2015-05-28 0:36 ` Alasdair G Kergon
2015-05-28 5:54 ` Ming Lin
2015-05-29 7:05 ` Ming Lin
2015-05-29 15:15 ` Mike Snitzer
2015-06-01 6:02 ` Ming Lin
2015-06-02 20:59 ` Ming Lin
2015-06-04 21:06 ` Mike Snitzer
2015-06-04 22:21 ` Ming Lin
2015-06-05 0:06 ` Mike Snitzer
2015-06-05 5:21 ` Ming Lin
2015-06-09 6:09 ` Ming Lin
2015-06-10 21:20 ` Ming Lin
2015-06-10 21:46 ` Mike Snitzer
2015-06-10 22:06 ` Ming Lin
2015-06-12 5:49 ` Ming Lin
2015-06-18 5:27 ` Ming Lin
2015-05-22 18:18 ` [PATCH v4 02/11] block: simplify bio_add_page() Ming Lin
2015-05-22 18:18 ` [PATCH v4 03/11] bcache: remove driver private bio splitting code Ming Lin
2015-05-22 18:18 ` [PATCH v4 04/11] btrfs: remove bio splitting and merge_bvec_fn() calls Ming Lin
2015-05-22 18:18 ` [PATCH v4 05/11] block: remove split code in blkdev_issue_discard Ming Lin
2015-05-22 18:18 ` [PATCH v4 06/11] md/raid5: get rid of bio_fits_rdev() Ming Lin
2015-05-25 5:48 ` NeilBrown
2015-05-25 7:03 ` Ming Lin
2015-05-25 7:54 ` NeilBrown
2015-05-25 14:17 ` Christoph Hellwig [this message]
2015-05-26 14:33 ` Ming Lin
2015-05-26 22:32 ` Ming Lin
2015-05-26 23:03 ` NeilBrown
2015-05-26 23:42 ` Ming Lin
2015-05-27 0:38 ` NeilBrown
2015-05-27 8:15 ` Christoph Hellwig
2015-05-22 18:18 ` [PATCH v4 07/11] md/raid5: split bio for chunk_aligned_read Ming Lin
2015-05-22 18:18 ` [PATCH v4 08/11] block: kill merge_bvec_fn() completely Ming Lin
2015-05-25 5:49 ` NeilBrown
2015-05-25 14:04 ` Christoph Hellwig
2015-05-25 15:02 ` Ilya Dryomov
2015-05-25 15:08 ` Christoph Hellwig
2015-05-25 15:19 ` Ilya Dryomov
2015-05-25 15:35 ` Alex Elder
2015-05-22 18:18 ` [PATCH v4 09/11] fs: use helper bio_add_page() instead of open coding on bi_io_vec Ming Lin
2015-05-22 18:18 ` [PATCH v4 10/11] block: remove bio_get_nr_vecs() Ming Lin
2015-05-22 18:18 ` [PATCH v4 11/11] Documentation: update notes in biovecs about arbitrarily sized bios Ming Lin
2015-05-23 14:15 ` [PATCH v4 00/11] simplify block layer based on immutable biovecs Christoph Hellwig
2015-05-24 7:37 ` Ming Lin
2015-05-25 13:51 ` Christoph Hellwig
2015-05-29 6:39 ` Ming Lin
2015-06-01 6:15 ` Ming Lin
2015-06-03 6:57 ` Christoph Hellwig
2015-06-03 13:28 ` Jeff Moyer
2015-06-03 17:06 ` Ming Lin
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