From: Kent Overstreet <koverstreet@google.com>
To: linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org,
dm-devel@redhat.com
Cc: Kent Overstreet <koverstreet@google.com>, tj@kernel.org, axboe@kernel.dk
Subject: [PATCH 0/9] Prep work for immutable bio vecs
Date: Fri, 7 Sep 2012 15:59:11 -0700 [thread overview]
Message-ID: <1347058760-30794-1-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.
Kent Overstreet (9):
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/blk-core.c | 86 ++++-----------------
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 | 8 +-
drivers/block/ps3vram.c | 2 +-
drivers/md/dm-raid1.c | 2 +-
drivers/md/dm-stripe.c | 2 +-
drivers/md/dm-verity.c | 4 +-
drivers/md/faulty.c | 6 +-
drivers/md/linear.c | 3 +-
drivers/md/md.c | 19 ++---
drivers/md/raid0.c | 9 +--
drivers/md/raid1.c | 21 +++--
drivers/md/raid10.c | 28 +++----
drivers/md/raid5.c | 22 +++---
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 | 128 ++++++++++---------------------
fs/bio.c | 48 +++++++++++-
fs/btrfs/extent_io.c | 3 +-
fs/buffer.c | 1 -
fs/gfs2/lops.c | 2 +-
fs/jfs/jfs_logmgr.c | 2 -
fs/logfs/dev_bdev.c | 5 --
include/linux/bio.h | 8 +-
include/trace/events/block.h | 10 +--
mm/page_io.c | 1 -
34 files changed, 192 insertions(+), 278 deletions(-)
--
1.7.12
next reply other threads:[~2012-09-07 22:59 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-07 22:59 Kent Overstreet [this message]
2012-09-07 22:59 ` [PATCH 1/9] block: Convert integrity to bvec_alloc_bs(), and a bugfix Kent Overstreet
2012-09-07 22:59 ` [PATCH 2/9] block: Add bio_advance() Kent Overstreet
2012-09-07 22:59 ` [PATCH 3/9] block: Refactor blk_update_request() Kent Overstreet
2012-09-07 22:59 ` [PATCH 4/9] md: Convert md_trim_bio() to use bio_advance() Kent Overstreet
2012-09-07 22:59 ` [PATCH 5/9] block: Add bio_end() Kent Overstreet
2012-09-07 22:59 ` [PATCH 6/9] block: Use bio_sectors() more consistently Kent Overstreet
2012-09-07 22:59 ` [PATCH 7/9] block: Don't use bi_idx in bio_split() or require it to be 0 Kent Overstreet
2012-09-07 22:59 ` [PATCH 8/9] block: Remove bi_idx references Kent Overstreet
2012-09-07 22:59 ` [PATCH 9/9] block: Remove some unnecessary bi_vcnt usage Kent Overstreet
2012-09-08 19:41 ` [PATCH 0/9] Prep work for immutable bio vecs Tejun Heo
2012-09-10 1:21 ` Kent Overstreet
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