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Dan Williams 0403e38277 dmaengine: add fence support 
Some engines optimize operation by reading ahead in the descriptor chain
such that descriptor2 may start execution before descriptor1 completes.
If descriptor2 depends on the result from descriptor1 then a fence is
required (on descriptor2) to disable this optimization.  The async_tx
api could implicitly identify dependencies via the 'depend_tx'
parameter, but that would constrain cases where the dependency chain
only specifies a completion order rather than a data dependency.  So,
provide an ASYNC_TX_FENCE to explicitly identify data dependencies.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 		2009-09-08 17:42:50 -07:00
..
raid6test md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
.gitignore gitignore: misc files 2006-01-01 22:21:50 +01:00
Kconfig md/raid456: distribute raid processing over multiple cores 2009-08-29 19:13:13 -07:00
Makefile md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
bitmap.c md: bitmap: improve bitmap maintenance code. 2009-05-26 09:41:17 +10:00
bitmap.h md: move headers out of include/linux/raid/ 2009-03-31 14:27:03 +11:00
dm-bio-record.h dm: preserve bi_io_vec when resubmitting bios 2009-04-02 19:55:23 +01:00
dm-crypt.c dm crypt: use kzfree 2009-04-02 19:55:28 +01:00
dm-delay.c block: move bio list helpers into bio.h 2009-04-15 08:28:09 +02:00
dm-exception-store.c dm snapshot: move ctr parsing to exception store 2009-04-02 19:55:34 +01:00
dm-exception-store.h dm snapshot: move status to exception store 2009-04-02 19:55:35 +01:00
dm-io.c dm io: make sync_io uninterruptible 2009-04-02 19:55:24 +01:00
dm-ioctl.c dm: add integrity support 2009-04-09 00:27:12 +01:00
dm-kcopyd.c dm kcopyd: fix callback race 2009-04-09 00:27:17 +01:00
dm-linear.c dm: remove limited barrier support 2009-04-09 00:27:13 +01:00
dm-log.c dm log: remove struct dm_dirty_log_internal 2009-04-02 19:55:30 +01:00
dm-mpath.c block: move bio list helpers into bio.h 2009-04-15 08:28:09 +02:00
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: path selector use module refcount directly 2009-04-02 19:55:27 +01:00
dm-path-selector.h [PATCH] struct path: rename DM's struct path 2006-12-08 08:28:40 -08:00
dm-raid1.c block: move bio list helpers into bio.h 2009-04-15 08:28:09 +02:00
dm-region-hash.c block: move bio list helpers into bio.h 2009-04-15 08:28:09 +02:00
dm-round-robin.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-snap-persistent.c dm snapshot: persistent fix dtr cleanup 2009-04-02 19:55:35 +01:00
dm-snap-transient.c dm snapshot: move status to exception store 2009-04-02 19:55:35 +01:00
dm-snap.c block: move bio list helpers into bio.h 2009-04-15 08:28:09 +02:00
dm-stripe.c dm: consolidate target deregistration error handling 2009-01-06 03:04:58 +00:00
dm-sysfs.c dm: add name and uuid to sysfs 2009-01-06 03:05:12 +00:00
dm-table.c dm: remove limited barrier support 2009-04-09 00:27:13 +01:00
dm-target.c dm target: remove struct tt_internal 2009-04-02 19:55:28 +01:00
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 block: move bio list helpers into bio.h 2009-04-15 08:28:09 +02:00
dm.h dm: remove limited barrier support 2009-04-09 00:27:13 +01:00
faulty.c md: centralize ->array_sectors modifications 2009-03-31 14:59:03 +11:00
linear.c md: centralize ->array_sectors modifications 2009-03-31 14:59:03 +11:00
linear.h md: move lots of #include lines out of .h files and into .c 2009-03-31 14:33:13 +11:00
md.c md: don't use locked_ioctl. 2009-05-26 12:57:36 +10:00
md.h md: tiny md.h cleanups 2009-04-14 12:01:53 +10:00
mktables.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
multipath.c md: centralize ->array_sectors modifications 2009-03-31 14:59:03 +11:00
multipath.h md: move lots of #include lines out of .h files and into .c 2009-03-31 14:33:13 +11:00
raid0.c md: 'array_size' sysfs attribute 2009-03-31 15:00:31 +11:00
raid0.h md: move lots of #include lines out of .h files and into .c 2009-03-31 14:33:13 +11:00
raid1.c block: move bio list helpers into bio.h 2009-04-15 08:28:09 +02:00
raid1.h md: move lots of #include lines out of .h files and into .c 2009-03-31 14:33:13 +11:00
raid5.c dmaengine: add fence support 2009-09-08 17:42:50 -07:00
raid5.h md/raid6: asynchronous raid6 operations 2009-08-29 19:13:12 -07:00
raid6algos.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6altivec.uc md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6int.uc md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6mmx.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6recov.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6sse1.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6sse2.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6x86.h md: fix typo in FSF address 2009-03-31 14:57:37 +11:00
raid10.c md/raid10: don't clear bitmap during recovery if array will still be degraded. 2009-05-07 12:48:10 +10:00
raid10.h md: move lots of #include lines out of .h files and into .c 2009-03-31 14:33:13 +11:00
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