From: Kent Overstreet <koverstreet@google.com>
To: linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org,
dm-devel@redhat.com
Cc: axboe@kernel.dk, Kent Overstreet <koverstreet@google.com>,
tj@kernel.org, neilb@suse.de
Subject: [PATCH v2 00/26] Prep work for immutable bio vecs
Date: Mon, 10 Sep 2012 17:22:11 -0700 [thread overview]
Message-ID: <1347322957-25260-1-git-send-email-koverstreet@google.com> (raw)
Random assortment of refactoring and trivial cleanups;
Immutable bio vecs and efficient bio splitting require auditing and
removing pretty much all bi_idx uses, among other things.
The reason is that with immutable bio vecs we can't use the bvec array
directly; if we have a partially completed bvec, that'll be indicated
with a field in struct bvec_iter (which gets embedded in struct bio) -
bi_bvec_done.
bio_for_each_segments() will handle this transparently, so code needs to
be converted to use it or some other generic accessor.
Also, bio splitting means that when a driver gets a bio, bi_idx and
bi_bvec_done may both be nonzero. Again, just need to use generic
accessors.
v2: Patch series now has all the prep work to be done before abstracting
out the bio iterator, I think.
Kent Overstreet (26):
block: Convert integrity to bvec_alloc_bs(), and a bugfix
block: Add bio_advance()
block: Refactor blk_update_request()
md: Convert md_trim_bio() to use bio_advance()
block: Add bio_end()
block: Use bio_sectors() more consistently
block: Don't use bi_idx in bio_split() or require it to be 0
block: Remove bi_idx references
block: Remove some unnecessary bi_vcnt usage
block: Add submit_bio_wait(), remove from md
raid10: Use bio_reset()
raid1: use bio_reset()
raid5: use bio_reset()
raid1: Refactor narrow_write_error() to not use bi_idx
block: Add bio_copy_data()
pktcdvd: use bio_copy_data()
pktcdvd: Use bio_reset() in disabled code to kill bi_idx usage
raid1: use bio_copy_data()
bounce: Refactor __blk_queue_bounce to not use bi_io_vec
block: Add bio_for_each_segment_all()
block: Convert some code to bio_for_each_segment_all()
block: Add bio_alloc_pages()
raid1: use bio_alloc_pages()
block: Add an explicit bio flag for bios that own their bvec
bio-integrity: Add explicit field for owner of bip_buf
block: Add BIO_SUBMITTED flag, kill BIO_CLONED
block/blk-core.c | 88 +++---------
block/cfq-iosched.c | 7 +-
block/deadline-iosched.c | 2 +-
drivers/block/aoe/aoeblk.c | 2 +-
drivers/block/aoe/aoecmd.c | 2 +-
drivers/block/brd.c | 3 +-
drivers/block/drbd/drbd_req.c | 8 +-
drivers/block/floppy.c | 1 -
drivers/block/pktcdvd.c | 102 ++++----------
drivers/block/ps3vram.c | 2 +-
drivers/md/dm-crypt.c | 3 +-
drivers/md/dm-raid1.c | 2 +-
drivers/md/dm-stripe.c | 2 +-
drivers/md/dm-verity.c | 4 +-
drivers/md/dm.c | 1 -
drivers/md/faulty.c | 6 +-
drivers/md/linear.c | 3 +-
drivers/md/md.c | 19 +--
drivers/md/raid0.c | 9 +-
drivers/md/raid1.c | 131 ++++++------------
drivers/md/raid10.c | 78 +++--------
drivers/md/raid5.c | 50 +++----
drivers/message/fusion/mptsas.c | 6 +-
drivers/s390/block/dcssblk.c | 3 +-
drivers/scsi/libsas/sas_expander.c | 6 +-
drivers/scsi/mpt2sas/mpt2sas_transport.c | 10 +-
fs/bio-integrity.c | 134 ++++++------------
fs/bio.c | 226 +++++++++++++++++++++++++++----
fs/btrfs/extent_io.c | 3 +-
fs/buffer.c | 1 -
fs/direct-io.c | 8 +-
fs/exofs/ore.c | 2 +-
fs/exofs/ore_raid.c | 2 +-
fs/gfs2/lops.c | 2 +-
fs/jfs/jfs_logmgr.c | 2 -
fs/logfs/dev_bdev.c | 5 -
include/linux/bio.h | 34 +++--
include/linux/blk_types.h | 3 +-
include/trace/events/block.h | 10 +-
mm/bounce.c | 75 +++-------
mm/page_io.c | 1 -
41 files changed, 471 insertions(+), 587 deletions(-)
--
1.7.12
next reply other threads:[~2012-09-11 0:22 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-11 0:22 Kent Overstreet [this message]
2012-09-11 0:22 ` [PATCH v2 01/26] block: Convert integrity to bvec_alloc_bs(), and a bugfix Kent Overstreet
2012-09-11 20:36 ` [dm-devel] " Vivek Goyal
2012-09-11 20:48 ` Kent Overstreet
2012-09-11 22:07 ` Kent Overstreet
2012-09-12 19:39 ` Martin K. Petersen
2012-09-17 21:08 ` Kent Overstreet
2012-09-20 21:53 ` Tejun Heo
2012-09-11 0:22 ` [PATCH v2 02/26] block: Add bio_advance() Kent Overstreet
2012-09-20 21:58 ` Tejun Heo
2012-09-20 23:13 ` Kent Overstreet
2012-09-20 23:25 ` Tejun Heo
2012-09-20 23:38 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 03/26] block: Refactor blk_update_request() Kent Overstreet
2012-09-20 23:20 ` Tejun Heo
2012-09-20 23:36 ` Kent Overstreet
2012-09-20 23:41 ` Tejun Heo
2012-09-20 23:50 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 04/26] md: Convert md_trim_bio() to use bio_advance() Kent Overstreet
2012-09-20 23:27 ` Tejun Heo
2012-09-11 0:22 ` [PATCH v2 05/26] block: Add bio_end() Kent Overstreet
2012-09-17 9:17 ` Steven Whitehouse
2012-09-20 23:32 ` Tejun Heo
2012-09-20 23:44 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 06/26] block: Use bio_sectors() more consistently Kent Overstreet
2012-09-20 23:36 ` Tejun Heo
2012-09-20 23:47 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 07/26] block: Don't use bi_idx in bio_split() or require it to be 0 Kent Overstreet
2012-09-20 23:45 ` Tejun Heo
2012-09-21 0:00 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 08/26] block: Remove bi_idx references Kent Overstreet
2012-09-20 23:49 ` Tejun Heo
2012-09-21 0:04 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 09/26] block: Remove some unnecessary bi_vcnt usage Kent Overstreet
2012-09-20 23:51 ` Tejun Heo
2012-09-11 0:22 ` [PATCH v2 10/26] block: Add submit_bio_wait(), remove from md Kent Overstreet
2012-09-20 23:56 ` Tejun Heo
2012-09-21 0:06 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 11/26] raid10: Use bio_reset() Kent Overstreet
2012-09-20 23:59 ` Tejun Heo
2012-09-11 0:22 ` [PATCH v2 12/26] raid1: use bio_reset() Kent Overstreet
2012-09-11 4:59 ` NeilBrown
2012-09-11 18:28 ` Kent Overstreet
2012-09-11 21:17 ` NeilBrown
2012-09-11 0:22 ` [PATCH v2 13/26] raid5: " Kent Overstreet
2012-09-11 5:03 ` NeilBrown
2012-09-11 19:26 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 14/26] raid1: Refactor narrow_write_error() to not use bi_idx Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 15/26] block: Add bio_copy_data() Kent Overstreet
2012-09-21 0:06 ` Tejun Heo
2012-09-21 0:09 ` Kent Overstreet
2012-09-21 0:15 ` Tejun Heo
2012-09-21 0:09 ` Tejun Heo
2012-09-21 0:13 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 16/26] pktcdvd: use bio_copy_data() Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 17/26] pktcdvd: Use bio_reset() in disabled code to kill bi_idx usage Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 18/26] raid1: use bio_copy_data() Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 19/26] bounce: Refactor __blk_queue_bounce to not use bi_io_vec Kent Overstreet
2012-09-21 0:25 ` Tejun Heo
2012-09-21 0:29 ` Kent Overstreet
2012-09-21 0:27 ` Tejun Heo
2012-09-21 0:34 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 20/26] block: Add bio_for_each_segment_all() Kent Overstreet
2012-09-21 0:35 ` Tejun Heo
2012-09-11 0:22 ` [PATCH v2 21/26] block: Convert some code to bio_for_each_segment_all() Kent Overstreet
2012-09-21 0:38 ` Tejun Heo
2012-09-21 0:50 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 22/26] block: Add bio_alloc_pages() Kent Overstreet
2012-09-21 0:47 ` Tejun Heo
2012-09-21 4:50 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 23/26] raid1: use bio_alloc_pages() Kent Overstreet
2012-09-21 0:48 ` Tejun Heo
2012-09-21 4:51 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 24/26] block: Add an explicit bio flag for bios that own their bvec Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 25/26] bio-integrity: Add explicit field for owner of bip_buf Kent Overstreet
2012-09-12 19:41 ` Martin K. Petersen
2012-09-17 21:09 ` Kent Overstreet
2012-09-11 0:22 ` [PATCH v2 26/26] block: Add BIO_SUBMITTED flag, kill BIO_CLONED Kent Overstreet
2012-09-11 5:22 ` [PATCH v2 00/26] Prep work for immutable bio vecs NeilBrown
2012-09-20 23:22 ` Tejun Heo
2012-10-15 20:08 [PATCH v4 00/24] " Kent Overstreet
2012-10-15 20:09 ` [PATCH v2 00/26] " Kent Overstreet
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