Jonathan E Brassow 5a25f0eb70 dm log userspace: add log device dependency ... Allow userspace dm log implementations to register their log device so it is no longer missing from the list of device dependencies. When device mapper targets use a device they normally call dm_get_device which includes it in the device list returned to userspace applications such as LVM through the DM_TABLE_DEPS ioctl. Userspace log devices don't use dm_get_device as userspace opens them so they are missing from the list of dependencies. This patch extends the DM_ULOG_CTR operation to allow userspace to respond with the name of the log device (if appropriate) to be registered via 'dm_get_device'. DM_ULOG_REQUEST_VERSION is incremented. This is backwards compatible. If the kernel and userspace log server have both been updated, the new information will be passed down to the kernel and the device will be registered. If the kernel is new, but the log server is old, the log server will not pass down any device information and the kernel will simply bypass the device registration as before. If the kernel is old but the log server is new, the log server will see the old version number and not pass the device info. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>		2011-10-31 20:21:24 +00:00
..
persistent-data	dm: add persistent data library	2011-10-31 20:19:11 +00:00
bitmap.c	MD bitmap: Revert DM dirty log hooks	2011-07-27 11:00:37 +10:00
bitmap.h	MD bitmap: Revert DM dirty log hooks	2011-07-27 11:00:37 +10:00
dm-bio-record.h	dm: preserve bi_io_vec when resubmitting bios	2009-04-02 19:55:23 +01:00
dm-bufio.c	dm: add bufio	2011-10-31 20:19:09 +00:00
dm-bufio.h	dm: add bufio	2011-10-31 20:19:09 +00:00
dm-crypt.c	dm crypt: always disable discard_zeroes_data	2011-09-25 23:26:21 +01:00
dm-delay.c	dm: convert workqueues to alloc_ordered	2011-01-13 19:59:57 +00:00
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-flakey.c	dm: flakey fix corrupt_bio_byte error path	2011-09-25 23:26:15 +01:00
dm-io.c	dm io: flush cpu cache with vmapped io	2011-08-02 12:32:01 +01:00
dm-ioctl.c	dm table: add immutable feature	2011-10-31 20:19:04 +00:00
dm-kcopyd.c	dm kcopyd: add dm_kcopyd_zero to zero an area	2011-10-31 20:18:58 +00:00
dm-linear.c	dm: use dm_target_offset macro	2010-08-12 04:14:11 +01:00
dm-log-userspace-base.c	dm log userspace: add log device dependency	2011-10-31 20:21:24 +00:00
dm-log-userspace-transfer.c	netlink: kill eff_cap from struct netlink_skb_parms	2011-03-03 13:32:07 -08:00
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: use vzalloc	2011-08-02 12:32:02 +01:00
dm-mpath.c	dm table: share target argument parsing functions	2011-08-02 12:32:04 +01:00
dm-mpath.h
dm-path-selector.c	dm: path selector use module refcount directly	2009-04-02 19:55:27 +01:00
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	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
dm-raid1.c	dm kcopyd: return client directly and not through a pointer	2011-05-29 13:03:13 +01:00
dm-raid.c	dm: raid fix write_mostly arg validation	2011-09-25 23:26:19 +01:00
dm-region-hash.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
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: style cleanups	2011-08-02 12:32:03 +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 snapshot: skip reading origin when overwriting complete chunk	2011-08-02 12:32:04 +01:00
dm-stripe.c	dm stripe: implement merge method	2011-03-24 13:54:35 +00:00
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 table: add immutable feature	2011-10-31 20:19:04 +00:00
dm-target.c	dm: error return error for discards	2010-08-12 04:14:14 +01:00
dm-thin-metadata.c	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
dm-thin-metadata.h	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
dm-thin.c	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
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: export dm get md	2011-10-31 20:19:06 +00:00
dm.h	dm table: add immutable feature	2011-10-31 20:19:04 +00:00
faulty.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
Kconfig	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
linear.c	md,rcu: Convert call_rcu(free_conf) to kfree_rcu()	2011-07-20 11:05:29 -07:00
linear.h	md/linear: avoid corrupting structure while waiting for rcu_free to complete.	2011-08-25 14:43:53 +10:00
Makefile	dm: add thin provisioning target	2011-10-31 20:21:18 +00:00
md.c	md: Avoid waking up a thread after it has been freed.	2011-09-21 15:30:20 +10:00
md.h	md: Avoid waking up a thread after it has been freed.	2011-09-21 15:30:20 +10:00
multipath.c	md: Avoid waking up a thread after it has been freed.	2011-09-21 15:30:20 +10:00
multipath.h	md/multipath: discard ->working_disks in favour of ->degraded	2011-05-11 14:38:02 +10:00
raid0.c	block: Require subsystems to explicitly allocate bio_set integrity mempool	2011-03-17 11:11:05 +01:00
raid0.h	md: fix handling of array level takeover that re-arranges devices.	2010-06-24 13:33:24 +10:00
raid1.c	md: Avoid waking up a thread after it has been freed.	2011-09-21 15:30:20 +10:00
raid1.h	md/raid1: Handle write errors by updating badblock log.	2011-07-28 11:32:41 +10:00
raid5.c	md: Avoid waking up a thread after it has been freed.	2011-09-21 15:30:20 +10:00
raid5.h	md/raid5: Clear bad blocks on successful write.	2011-07-28 11:39:23 +10:00
raid10.c	md: Avoid waking up a thread after it has been freed.	2011-09-21 15:30:20 +10:00
raid10.h	md/raid10: Handle write errors by updating badblock log.	2011-07-28 11:39:24 +10:00