[dm-devel] [PATCHSET #upstream] block, fs: replace HARDBARRIER with FLUSH/FUA, take#2
Tejun Heo
tj at kernel.org
Fri Sep 3 10:29:15 UTC 2010
Hello,
This patchset is combination of the following two patchsets.
[1] block, fs: replace HARDBARRIER with FLUSH/FUA
[2] block, dm: finish REQ_FLUSH/FUA conversion, take#2
Changes from the previous postings are
* Rebased on top of v2.6.36-rc3.
* 0010-block-implement-REQ_FLUSH-FUA-based-interface-for-FL.patch
description updated to include why special -EOPNOTSUPP handling is
no longer necessary as suggested by Mike Snitzer.
* 0025-dm-relax-ordering-of-bio-based-flush-implementation.patch
description updated to include why flush_error and special error
handling logic are no longer necessary as suggested by Mike
Snitzer.
* 0013-block-initialize-flush-request-with-WRITE_FLUSH-inst.patch and
0014-block-kick-queue-after-sequencing-REQ_FLUSH-FUA.patch added.
These fixes aren't strictly required by the current users but remove
fishy corner cases.
* 0015-block-make-sure-FSEQ_DATA-request-has-the-same-rq_di.patch
added. This is needed to make requested based dm work.
* 0026-dm-fix-locking-context-in-queue_io.patch added. This fixes
locking context problem introduced by
0025-dm-relax-ordering-of-bio-based-flush-implementation.patch.
* Tested/Reviewed-by's added and patches reordered such that block
layer conversion comes first followed by block driver conversions,
filesystem conversions and then finally removal of deprecate stuff.
I think the patchset is mostly ready now although I would love to have
acked/reviewd-by's on bio-based dm conversion patches. Jens,
Christoph, how do you guys wanna steer these patches? I think it
would be best to go through the block tree but splitting parts and
doing cross tree pull/merges should be doable too.
This patchset contains the following patches
0001-ide-remove-unnecessary-blk_queue_flushing-test-in-do.patch
0002-block-loop-queue-ordered-mode-should-be-DRAIN_FLUSH.patch
0003-block-kill-QUEUE_ORDERED_BY_TAG.patch
0004-block-deprecate-barrier-and-replace-blk_queue_ordere.patch
0005-block-remove-spurious-uses-of-REQ_HARDBARRIER.patch
0006-block-misc-cleanups-in-barrier-code.patch
0007-block-drop-barrier-ordering-by-queue-draining.patch
0008-block-rename-blk-barrier.c-to-blk-flush.c.patch
0009-block-rename-barrier-ordered-to-flush.patch
0010-block-implement-REQ_FLUSH-FUA-based-interface-for-FL.patch
0011-block-filter-flush-bio-s-in-__generic_make_request.patch
0012-block-simplify-queue_next_fseq.patch
0013-block-initialize-flush-request-with-WRITE_FLUSH-inst.patch
0014-block-kick-queue-after-sequencing-REQ_FLUSH-FUA.patch
0015-block-make-sure-FSEQ_DATA-request-has-the-same-rq_di.patch
0016-block-update-documentation-for-REQ_FLUSH-REQ_FUA.patch
0017-block-use-REQ_FLUSH-in-blkdev_issue_flush.patch
0018-block-loop-implement-REQ_FLUSH-FUA-support.patch
0019-virtio_blk-drop-REQ_HARDBARRIER-support.patch
0020-lguest-replace-VIRTIO_F_BARRIER-support-with-VIRTIO_.patch
0021-md-implment-REQ_FLUSH-FUA-support.patch
0022-block-make-__blk_rq_prep_clone-copy-most-command-fla.patch
0023-dm-implement-REQ_FLUSH-FUA-support-for-bio-based-dm.patch
0024-dm-implement-REQ_FLUSH-FUA-support-for-request-based.patch
0025-dm-relax-ordering-of-bio-based-flush-implementation.patch
0026-dm-fix-locking-context-in-queue_io.patch
0027-block-pass-gfp_mask-and-flags-to-sb_issue_discard.patch
0028-xfs-replace-barriers-with-explicit-flush-FUA-usage.patch
0029-btrfs-replace-barriers-with-explicit-flush-FUA-usage.patch
0030-gfs2-replace-barriers-with-explicit-flush-FUA-usage.patch
0031-reiserfs-replace-barriers-with-explicit-flush-FUA-us.patch
0032-nilfs2-replace-barriers-with-explicit-flush-FUA-usag.patch
0033-jbd-replace-barriers-with-explicit-flush-FUA-usage.patch
0034-jbd2-Modify-ASYNC_COMMIT-code-to-not-rely-on-queue-d.patch
0035-jbd2-replace-barriers-with-explicit-flush-FUA-usage.patch
0036-ext4-do-not-send-discards-as-barriers.patch
0037-fat-do-not-send-discards-as-barriers.patch
0038-swap-do-not-send-discards-as-barriers.patch
0039-block-remove-the-WRITE_BARRIER-flag.patch
0040-block-remove-the-BLKDEV_IFL_BARRIER-flag.patch
0041-block-remove-the-BH_Eopnotsupp-flag.patch
and is on top of v2.6.26-rc3 (2bfc96a127bc1cc94d26bfaa40159966064f9c8c)
and available in the following git tree
git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git flush-fua
and contains the following changes. (hey, 1000 less lines!)
Documentation/block/00-INDEX | 4
Documentation/block/barrier.txt | 261 ---------------
Documentation/block/writeback_cache_control.txt | 86 +++++
Documentation/lguest/lguest.c | 29 -
block/Makefile | 2
block/blk-barrier.c | 350 ---------------------
block/blk-core.c | 72 ++--
block/blk-flush.c | 265 +++++++++++++++
block/blk-lib.c | 18 -
block/blk-settings.c | 20 +
block/blk.h | 8
block/elevator.c | 79 ----
drivers/block/brd.c | 1
drivers/block/loop.c | 20 -
drivers/block/osdblk.c | 5
drivers/block/pktcdvd.c | 1
drivers/block/ps3disk.c | 2
drivers/block/virtio_blk.c | 37 --
drivers/block/xen-blkfront.c | 47 --
drivers/ide/ide-disk.c | 13
drivers/ide/ide-io.c | 13
drivers/md/dm-crypt.c | 2
drivers/md/dm-io.c | 20 -
drivers/md/dm-log.c | 2
drivers/md/dm-raid1.c | 8
drivers/md/dm-region-hash.c | 16
drivers/md/dm-snap-persistent.c | 2
drivers/md/dm-snap.c | 6
drivers/md/dm-stripe.c | 2
drivers/md/dm.c | 400 +++++-------------------
drivers/md/linear.c | 4
drivers/md/md.c | 117 +------
drivers/md/md.h | 23 -
drivers/md/multipath.c | 4
drivers/md/raid0.c | 4
drivers/md/raid1.c | 176 +++-------
drivers/md/raid1.h | 2
drivers/md/raid10.c | 7
drivers/md/raid5.c | 43 +-
drivers/md/raid5.h | 1
drivers/mmc/card/queue.c | 1
drivers/s390/block/dasd.c | 1
drivers/scsi/aic7xxx_old.c | 21 -
drivers/scsi/libsas/sas_scsi_host.c | 13
drivers/scsi/sd.c | 18 -
fs/btrfs/disk-io.c | 19 -
fs/btrfs/extent-tree.c | 2
fs/btrfs/volumes.c | 4
fs/btrfs/volumes.h | 1
fs/buffer.c | 7
fs/ext4/mballoc.c | 3
fs/fat/fatent.c | 4
fs/fat/misc.c | 5
fs/gfs2/log.c | 19 -
fs/gfs2/rgrp.c | 5
fs/jbd/commit.c | 30 -
fs/jbd2/commit.c | 72 +---
fs/nilfs2/super.c | 10
fs/nilfs2/the_nilfs.c | 7
fs/reiserfs/journal.c | 106 +-----
fs/xfs/linux-2.6/xfs_buf.c | 16
fs/xfs/linux-2.6/xfs_buf.h | 11
fs/xfs/linux-2.6/xfs_trace.h | 1
fs/xfs/xfs_log.c | 13
include/linux/blk_types.h | 5
include/linux/blkdev.h | 85 -----
include/linux/buffer_head.h | 2
include/linux/fs.h | 28 -
include/scsi/scsi_tcq.h | 6
mm/swapfile.c | 9
70 files changed, 819 insertions(+), 1877 deletions(-)
Thanks.
--
tejun
[1] http://thread.gmane.org/gmane.linux.kernel.device-mapper.devel/12363
[2] http://thread.gmane.org/gmane.linux.kernel/1029396
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