Hi Linus,
here is my merge-window pull request for md.
The bulk of this update is changes to allow md/raid5 to be plugged
into dm as a dm target. The changes to dm to make this happen are
with the dm maintainer who has given in-principle agreement - they
just need to be carefully reviewed.
The remainder are some deadlock fixes which are tagged for -stable,
one of which should have been around for quite some time, but have
only manifested recently for some strange reason.
Thanks,
NeilBrown
The following changes since commit 9fe6206f400646a2322096b56c59891d530e8d51:
Linux 2.6.35 (2010-08-01 15:11:14 -0700)
are available in the git repository at:
git://neil.brown.name/md/ for-linus
Dan Williams (1):
md: move revalidate_disk() back outside open_mutex
NeilBrown (21):
md: reduce dependence on sysfs.
md/raid5: factor out code for changing size of stripe cache.
md/raid5: ensure we create a unique name for kmem_cache when mddev has no gendisk
md: be more careful setting MD_CHANGE_CLEAN
md: split out md_rdev_init
md: export various start/stop interfaces
md: add support for raising dm events.
raid5: Don't set read-ahead when there is no queue
md/raid5: export is_congested test
md/raid5: add simple plugging infrastructure.
md/plug: optionally use plugger to unplug an array during resync/recovery.
md/raid5: export raid5 unplugging interface.
md/bitmap: white space clean up and similar.
md/bitmap: reduce dependence on sysfs.
md/bitmap: clean up plugging calls.
md/bitmap: optimise scanning of empty bitmaps.
md/bitmap: prepare for storing write-intent-bitmap via dm-dirty-log.
md/bitmap: separate out loading a bitmap from initialising the structures.
md/raid10: fix deadlock with unaligned read during resync
md: fix another deadlock with removing sysfs attributes.
md: clean up do_md_stop
drivers/md/bitmap.c | 508 ++++++++++++++++++++++++++++-----------------------
drivers/md/bitmap.h | 6 +
drivers/md/md.c | 286 ++++++++++++++++++-----------
drivers/md/md.h | 55 ++++++-
drivers/md/raid10.c | 18 ++
drivers/md/raid5.c | 168 ++++++++++-------
drivers/md/raid5.h | 9 +-
7 files changed, 643 insertions(+), 407 deletions(-)
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