Following are 18 patches against md/raid in 2.6.15-rc2-mm1
The first 5 are bug fixes against recent additions to 2.6.15-rc.
They should preferrable go to Linus for inclusion in 2.6.15.
The remaining 13 are code cleanups and new functionality. These
should sit in -mm until 2.6.16-rc opens up.
The main elements of functionality I have been working on are
- bitmap based write intent logging
This is now available in all raid levels (where useful).
- better handling of read errors
This is now available for raid5, raid6, raid1
raid10 is still outstanding
- Support 'check' action which checks redundancy but doesn't repair.
This is now available in raid5 and raid6
raid10 and raid1 are still outstanding.
Future work includes
- enhancements to the sysfs interface
- improve raid5/6 read speed by bypassing cache
Thanks,
NeilBrown
2.6.15 material
[PATCH md 001 of 18] Improve read speed to raid10 arrays using 'far copies'.
[PATCH md 002 of 18] Fix locking problem in r5/r6
[PATCH md 003 of 18] Fix problem with raid6 intent bitmap
[PATCH md 004 of 18] Set default_bitmap_offset properly in set_array_info
[PATCH md 005 of 18] Fix --re-add for raid1 and raid6
2.6.16 material
[PATCH md 006 of 18] Improve raid1 "IO Barrier" concept.
[PATCH md 007 of 18] Improve raid10 "IO Barrier" concept.
[PATCH md 008 of 18] Small cleanups for raid5
[PATCH md 009 of 18] Allow dirty raid[456] arrays to be started at boot.
[PATCH md 010 of 18] Move bitmap_create to after md array has been initialised.
[PATCH md 011 of 18] Write intent bitmap support for raid10
[PATCH md 012 of 18] Fix raid6 resync check/repair code.
[PATCH md 013 of 18] Improve handing of read errors with raid6
[PATCH md 014 of 18] Attempt to auto-correct read errors in raid1.
[PATCH md 015 of 18] Tidyup some issues with raid1 resync and prepare for catching read errors.
[PATCH md 016 of 18] Better handling for read error in raid1 during resync
[PATCH md 017 of 18] Handle errors when read-only
[PATCH md 018 of 18] Fix up some rdev rcu locking in raid5/6
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