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 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
