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Message-ID: <20120105150319.375211fd@notabene.brown>
Date:	Thu, 5 Jan 2012 15:03:19 +1100
From:	NeilBrown <neilb@...e.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux RAID <linux-raid@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: [PULL REQUEST] md for 3.3


Thanks,
NeilBrown


The following changes since commit 805a6af8dba5dfdd35ec35dc52ec0122400b2610:

  Linux 3.2 (2012-01-04 15:55:44 -0800)

are available in the git repository at:

  git://neil.brown.name/md/ md-3.3

for you to fetch changes up to 19d671695e1931ebfd75b2b888778201aefe35ca:

  md/raid1: Mark device want_replacement when we see a write error. (2011-12-23 10:17:57 +1100)

----------------------------------------------------------------
(from the branch description for md-scratch local branch)

for-linus
md update for 3.3

Big change is new hot-replacement.
A slot in an array can hold 2 devices - one that
wants-replacement and one that is the replacement.
Once the replacement is built - either from the
original or (in the case of errors) from elsewhere,
the wants-replacement device will be removed.

----------------------------------------------------------------
NeilBrown (35):
      md: allow non-privileged uses to GET_*_INFO about raid arrays.
      md/bitmap: daemon_work cleanup.
      md/raid5: be more thorough in calculating 'degraded' value.
      md/bitmap: be more consistent when setting new bits in memory bitmap.
      md: remove test for duplicate device when setting slot number.
      md: change hot_remove_disk to take an rdev rather than a number.
      md: create externally visible flags for supporting hot-replace.
      md/raid5: allow each slot to have an extra replacement device
      md/raid5: raid5.h cleanup
      md/raid5: remove redundant bio initialisations.
      md/raid5: preferentially read from replacement device if possible.
      md/raid5: allow removal for failed replacement devices.
      md/raid5: writes should get directed to replacement as well as original.
      md/raid5:  detect and handle replacements during recovery.
      md/raid5: handle activation of replacement device when recovery completes.
      md/raid5: recognise replacements when assembling array.
      md/raid5: If there is a spare and a want_replacement device, start replacement.
      md/raid5: Mark device want_replacement when we see a write error.
      md/raid10: prepare data structures for handling replacement.
      md/raid10:  change read_balance to return an rdev
      md/raid10: preferentially read from replacement device if possible.
      md/raid10: allow removal of failed replacement devices.
      md/raid10: writes should get directed to replacement as well as original.
      md/raid10:  Handle replacement devices during resync.
      md/raid10: handle recovery of replacement devices.
      md/raid10: Allow replacement device to be replace old drive.
      md/raid10: recognise replacements when assembling array.
      md/raid10: If there is a spare and a want_replacement device, start replacement.
      md/raid1:  Replace use of mddev->raid_disks with conf->raid_disks.
      md/raid1: Allocate spare to store replacement devices and their bios.
      md/raid1: Allow a failed replacement device to be removed.
      md/raid1: handle activation of replacement device when recovery completes.
      md/raid1: recognise replacements when assembling arrays.
      md/raid1: If there is a spare and a want_replacement device, start replacement.
      md/raid1: Mark device want_replacement when we see a write error.

Steven Rostedt (1):
      md: Fix userspace free_pages() macro

 Documentation/md.txt      |   22 ++-
 drivers/md/bitmap.c       |   12 +-
 drivers/md/md.c           |  107 ++++++--
 drivers/md/md.h           |   82 ++++---
 drivers/md/multipath.c    |    7 +-
 drivers/md/raid1.c        |  174 ++++++++++----
 drivers/md/raid1.h        |    7 +-
 drivers/md/raid10.c       |  582 ++++++++++++++++++++++++++++++++++++---------
 drivers/md/raid10.h       |   61 +++--
 drivers/md/raid5.c        |  557 ++++++++++++++++++++++++++++++++-----------
 drivers/md/raid5.h        |   98 +++++----
 include/linux/raid/md_p.h |    7 +-
 include/linux/raid/pq.h   |    2 +-
 13 files changed, 1280 insertions(+), 438 deletions(-)

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