Files
linux-st/include/linux
NeilBrown 4b6d287f62 [PATCH] md: add write-behind support for md/raid1
If a device is flagged 'WriteMostly' and the array has a bitmap, and the
bitmap superblock indicates that write_behind is allowed, then write_behind is
enabled for WriteMostly devices.

Write requests will be acknowledges as complete to the caller (via b_end_io)
when all non-WriteMostly devices have completed the write, but will not be
cleared from the bitmap until all devices complete.

This requires memory allocation to make a local copy of the data being
written.  If there is insufficient memory, then we fall-back on normal write
semantics.

Signed-Off-By: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09 16:39:10 -07:00
..
2005-08-29 15:59:42 -04:00
2005-09-07 16:57:21 -07:00
2005-09-09 02:38:35 -03:00
2005-09-05 00:06:09 -07:00
2005-09-07 16:57:21 -07:00
2005-09-09 13:57:55 -07:00
2005-09-09 13:57:55 -07:00
2005-09-07 16:57:40 -07:00
2005-09-05 09:14:13 -07:00
2005-09-05 09:26:56 -07:00
2005-08-29 16:01:32 -07:00
2005-08-29 16:01:32 -07:00
2005-08-29 16:01:32 -07:00
2005-08-29 15:32:25 -07:00
2005-08-29 16:01:32 -07:00
2005-08-29 15:49:46 -07:00
2005-08-29 15:43:19 -07:00
2005-09-07 16:57:48 -07:00
2005-09-07 16:57:19 -07:00
2005-08-29 16:01:32 -07:00
2005-08-29 16:01:32 -07:00
2005-08-29 16:01:35 -07:00
2005-08-28 20:28:25 -04:00
2005-09-07 16:57:24 -07:00
2005-08-30 22:48:51 -05:00
2005-09-09 13:57:54 -07:00
2005-09-09 13:57:54 -07:00
2005-09-07 16:57:18 -07:00
2005-09-08 12:32:03 -07:00
2005-09-07 16:57:45 -07:00
2005-08-29 16:01:32 -07:00
2005-09-05 00:05:45 -07:00
2005-09-07 16:57:34 -07:00
2005-09-09 13:57:58 -07:00