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NeilBrown 070dc6dd71 md: resolve confusion of MD_CHANGE_CLEAN 
MD_CHANGE_CLEAN is used for two different purposes and this leads to
confusion.
One of the purposes is largely mirrored by MD_CHANGE_PENDING which is
not used for anything else, so have MD_CHANGE_PENDING take over that
purpose fully.

The two purposes are:
 1/ tell md_update_sb that an update is needed and that it is just a
   clean/dirty transition.
 2/ tell user-space that an transition from clean to dirty is pending
    (something wants to write), and tell te kernel (by clearin the
    flag) that the transition is OK.

The first purpose remains wit MD_CHANGE_CLEAN, the second is moved
fully to MD_CHANGE_PENDING.

This means that various places which conditionally set or cleared
MD_CHANGE_CLEAN no longer need to be conditional.

Signed-off-by: NeilBrown <neilb@suse.de>
2010-08-30 18:06:21 +10:00
..
bitmap.c md: resolve confusion of MD_CHANGE_CLEAN 2010-08-30 18:06:21 +10:00
bitmap.h md/bitmap: separate out loading a bitmap from initialising the structures. 2010-07-26 13:21:34 +10:00
dm-bio-record.h
dm-crypt.c dm: use dm_target_offset macro 2010-08-12 04:14:11 +01:00
dm-delay.c dm delay: support discard 2010-08-12 04:14:13 +01:00
dm-exception-store.c dm snapshot: test chunk size against both origin and snapshot 2010-08-12 04:13:51 +01:00
dm-exception-store.h dm snapshot: test chunk size against both origin and snapshot 2010-08-12 04:13:51 +01:00
dm-io.c block: unify flags for struct bio and struct request 2010-08-07 18:20:39 +02:00
dm-ioctl.c dm: allow autoloading of dm mod 2010-08-12 04:14:05 +01:00
dm-kcopyd.c block: unify flags for struct bio and struct request 2010-08-07 18:20:39 +02:00
dm-linear.c dm: use dm_target_offset macro 2010-08-12 04:14:11 +01:00
dm-log-userspace-base.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dm-log-userspace-transfer.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dm-log-userspace-transfer.h dm log: userspace add luid to distinguish between concurrent log instances 2009-09-04 20:40:34 +01:00
dm-log.c dm table: remove unused dm_get_device range parameters 2010-03-06 02:32:27 +00:00
dm-mpath.c dm mpath: support discard 2010-08-12 04:14:32 +01:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h dm mpath: add start_io and nr_bytes to path selectors 2009-06-22 10:12:27 +01:00
dm-queue-length.c dm mpath: add queue length load balancer 2009-06-22 10:12:27 +01:00
dm-raid1.c dm: use dm_target_offset macro 2010-08-12 04:14:11 +01:00
dm-region-hash.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dm-round-robin.c dm mpath: add start_io and nr_bytes to path selectors 2009-06-22 10:12:27 +01:00
dm-service-time.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dm-snap-persistent.c dm snapshot: persistent use define for disk header chunk size 2010-08-12 04:13:59 +01:00
dm-snap-transient.c dm snapshot: move cow ref from exception store to snap core 2009-12-10 23:52:12 +00:00
dm-snap.c dm: rename map_info flush_request to target_request_nr 2010-08-12 04:14:04 +01:00
dm-stripe.c dm stripe: support discards 2010-08-12 04:14:26 +01:00
dm-sysfs.c Driver core: Constify struct sysfs_ops in struct kobj_type 2010-03-07 17:04:49 -08:00
dm-table.c dm: linear support discard 2010-08-12 04:14:08 +01:00
dm-target.c dm: error return error for discards 2010-08-12 04:14:14 +01:00
dm-uevent.c dm table: remove dm_get from dm_table_get_md 2010-03-06 02:29:52 +00:00
dm-uevent.h
dm-zero.c dm: zero silently drop discards 2010-08-12 04:14:12 +01:00
dm.c dm: split discard requests on target boundaries 2010-08-12 04:14:24 +01:00
dm.h dm: linear support discard 2010-08-12 04:14:08 +01:00
faulty.c Merge commit '3ff195b011d7decf501a4d55aeed312731094796' into for-linus 2010-05-22 08:31:36 +10:00
Kconfig Merge branch 'async' of macbook:git/btrfs-unstable 2010-08-09 10:36:44 +01:00
linear.c block: unify flags for struct bio and struct request 2010-08-07 18:20:39 +02:00
linear.h md/linear: use call_rcu to free obsolete 'conf' structures. 2009-06-18 08:49:42 +10:00
Makefile Merge branch 'async' of macbook:git/btrfs-unstable 2010-08-09 10:36:44 +01:00
md.c md: resolve confusion of MD_CHANGE_CLEAN 2010-08-30 18:06:21 +10:00
md.h md: resolve confusion of MD_CHANGE_CLEAN 2010-08-30 18:06:21 +10:00
multipath.c block: unify flags for struct bio and struct request 2010-08-07 18:20:39 +02:00
multipath.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
raid0.c block: unify flags for struct bio and struct request 2010-08-07 18:20:39 +02:00
raid0.h md: fix handling of array level takeover that re-arranges devices. 2010-06-24 13:33:24 +10:00
raid1.c md raid-1/10 Fix bio_rw bit manipulations again 2010-08-18 16:16:05 +10:00
raid1.h md/raid1: add takeover support for raid5->raid1 2009-12-14 12:51:41 +11:00
raid5.c md: provide appropriate return value for spare_active functions. 2010-08-18 12:04:32 +10:00
raid5.h md/raid5: export raid5 unplugging interface. 2010-07-26 12:53:10 +10:00
raid10.c md raid-1/10 Fix bio_rw bit manipulations again 2010-08-18 16:16:05 +10:00
raid10.h md: fix handling of array level takeover that re-arranges devices. 2010-06-24 13:33:24 +10:00