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Subject[PULL REQUEST] md updates for 2.6.33 merge window


here is my offering for 2.6.33, to bring more goodness (and less
badness?) to md/RAID.

Probably the most significant thing is that we now support barriers
on all raid levels, so I expect to hear complaints that RAID5 just
got slower :-(

There are also some changes to write-intent-bitmap handling so that
the bitmaps can be inspected and manipulated through sysfs.

and it is possible to convert a 2-disk RAID5 to RAID1 (so if you
converted a RAID1 to RAID5 by mistake, you can now convert it back).

... as well as the usual mix of minor improvements and little bug


The following changes since commit 3067e02f8f3ae2f3f02ba76400d03b8bcb4942b0:
Linus Torvalds (1):
Merge branch 'acpica' of git://

are available in the git repository at:

git:// for-linus

Arnd Bergmann (1):
md: move compat_ioctl handling into md.c

NeilBrown (22):
md/bitmap: protect against bitmap removal while being updated.
md/raid5: remove some sparse warnings.
md: remove sparse warning:symbol XXX was not declared.
md: adjust resync_min usefully when resync aborts.
md: don't reset curr_resync_completed after an interrupted resync
md: support barrier requests on all personalities.
md/raid5: don't complete make_request on barrier until writes are scheduled
md: add honouring of suspend_{lo,hi} to raid1.
md/raid1: add takeover support for raid5->raid1
md: collect bitmap-specific fields into one structure.
md: move offset, daemon_sleep and chunksize out of bitmap structure
md: change daemon_sleep to be in 'jiffies' rather than 'seconds'.
md: remove needless setting of thread->timeout in raid10_quiesce
md: support bitmap offset appropriate for external-metadata arrays.
md: factor out parsing of fixed-point numbers
md: support updating bitmap parameters via sysfs.
md/bitmap: move setting of daemon_lastrun out of bitmap_read_sb
md: Support write-intent bitmaps with externally managed metadata.
md/bitmap: update dirty flag when bitmap bits are explicitly set.
md: add MODULE_DESCRIPTION for all md related modules.
md: revise Kconfig help for MD_MULTIPATH
md: integrate spares into array at earliest opportunity.

Robert Becker (2):
md/raid10: print more useful messages on device failure.
raid: improve MD/raid10 handling of correctable read errors.

Documentation/md.txt | 45 +++++
drivers/md/Kconfig | 9 +-
drivers/md/bitmap.c | 449 +++++++++++++++++++++++++++++++++++++++++------
drivers/md/bitmap.h | 19 +--
drivers/md/faulty.c | 1 +
drivers/md/linear.c | 3 +-
drivers/md/md.c | 344 ++++++++++++++++++++++++++++--------
drivers/md/md.h | 51 ++++--
drivers/md/multipath.c | 3 +-
drivers/md/raid0.c | 3 +-
drivers/md/raid1.c | 217 +++++++++++++++--------
drivers/md/raid1.h | 5 +
drivers/md/raid10.c | 116 +++++++++++--
drivers/md/raid5.c | 63 +++++--
drivers/md/raid6algos.c | 20 +--
fs/compat_ioctl.c | 22 ---
include/linux/raid/pq.h | 19 ++
17 files changed, 1077 insertions(+), 312 deletions(-)

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