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linux-stable/drivers/md
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Andi Kleen ab4c142488 dm: support barriers on simple devices 
Implement barrier support for single device DM devices

This patch implements barrier support in DM for the common case of dm linear
just remapping a single underlying device. In this case we can safely
pass the barrier through because there can be no reordering between
devices.

 NB. Any DM device might cease to support barriers if it gets
     reconfigured so code must continue to allow for a possible
     -EOPNOTSUPP on every barrier bio submitted.  - agk

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2009-01-06 03:05:09 +00:00
..
raid6test md: raid6: clean up the style of raid6test/test.c 2008-02-06 10:41:18 -08:00
.gitignore
bitmap.c md: Don't read past end of bitmap when reading bitmap. 2008-12-19 16:25:01 +11:00
dm-bio-list.h dm: bio_list macro renaming 2007-10-20 02:01:11 +01:00
dm-bio-record.h
dm-crypt.c dm: consolidate target deregistration error handling 2009-01-06 03:04:58 +00:00
dm-delay.c dm: consolidate target deregistration error handling 2009-01-06 03:04:58 +00:00
dm-exception-store.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-io.c bio: allow individual slabs in the bio_set 2008-12-29 08:29:23 +01:00
dm-ioctl.c dm ioctl: allow dm_copy_name_and_uuid to return only one field 2009-01-06 03:05:04 +00:00
dm-kcopyd.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-linear.c dm: support barriers on simple devices 2009-01-06 03:05:09 +00:00
dm-log.c dm log: ensure log bitmap fits on log device 2009-01-06 03:05:02 +00:00
dm-mpath.c dm: consolidate target deregistration error handling 2009-01-06 03:04:58 +00:00
dm-mpath.h dm mpath: remove is_active from struct dm_path 2008-10-10 13:36:58 +01:00
dm-path-selector.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-path-selector.h
dm-raid1.c dm log: move region_size validation 2009-01-06 03:05:01 +00:00
dm-region-hash.c dm raid1: separate region_hash interface part1 2008-10-21 17:45:06 +01:00
dm-round-robin.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-snap.c dm: consolidate target deregistration error handling 2009-01-06 03:04:58 +00:00
dm-snap.h dm snapshot: wait for chunks in destructor 2008-10-30 13:33:16 +00:00
dm-stripe.c dm: consolidate target deregistration error handling 2009-01-06 03:04:58 +00:00
dm-table.c dm: support barriers on simple devices 2009-01-06 03:05:09 +00:00
dm-target.c dm: consolidate target deregistration error handling 2009-01-06 03:04:58 +00:00
dm-uevent.c md: replace remaining __FUNCTION__ occurrences 2008-04-28 08:58:42 -07:00
dm-uevent.h dm: uevent generate events 2007-10-20 02:01:26 +01:00
dm-zero.c dm: consolidate target deregistration error handling 2009-01-06 03:04:58 +00:00
dm.c dm: support barriers on simple devices 2009-01-06 03:05:09 +00:00
dm.h dm: support barriers on simple devices 2009-01-06 03:05:09 +00:00
faulty.c md: check for memory allocation failure in faulty personality 2008-10-16 14:16:53 +11:00
Kconfig raid, fastboot: hide RAID autodetect option if MD is compiled as a module 2008-10-12 08:25:14 -07:00
linear.c md: linear: Fix a division by zero bug for very small arrays. 2008-11-06 19:41:24 +11:00
Makefile dm raid1: separate region_hash interface part1 2008-10-21 17:45:06 +01:00
md.c md: revert the recent addition of a call to the BLKRRPART ioctl. 2008-11-06 17:28:01 +11:00
mktables.c md: raid6: Fix mktable.c 2008-02-06 10:41:18 -08:00
multipath.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-10-17 09:00:23 -07:00
raid0.c md: Remove unnecessary #includes, #defines, and function declarations. 2008-10-13 11:55:12 +11:00
raid1.c md: build failure due to missing delay.h 2008-10-15 21:57:05 +11:00
raid5.c md: Relax minimum size restrictions on chunk_size. 2008-10-13 11:55:12 +11:00
raid6.h md: Remove unnecessary #includes, #defines, and function declarations. 2008-10-13 11:55:12 +11:00
raid6algos.c drivers/md: use time_before, time_before_eq, etc 2008-04-28 08:58:42 -07:00
raid6altivec.uc
raid6int.uc
raid6mmx.c x86 merge fallout: uml 2007-10-29 07:41:32 -07:00
raid6recov.c
raid6sse1.c x86 merge fallout: uml 2007-10-29 07:41:32 -07:00
raid6sse2.c x86 merge fallout: uml 2007-10-29 07:41:32 -07:00
raid6x86.h x86 merge fallout: uml 2007-10-29 07:41:32 -07:00
raid10.c md: fix bug in raid10 recovery. 2008-11-06 17:28:20 +11:00
unroll.pl