Dongmao Zhang 5066a4df1f dm log userspace: allow mark requests to piggyback on flush requests ... In the cluster evironment, cluster write has poor performance because userspace_flush() has to contact a userspace program (cmirrord) for clear/mark/flush requests. But both mark and flush requests require cmirrord to communicate the message to all the cluster nodes for each flush call. This behaviour is really slow. To address this we now merge mark and flush requests together to reduce the kernel-userspace-kernel time. We allow a new directive, "integrated_flush" that can be used to instruct the kernel log code to combine flush and mark requests when directed by userspace. If not directed by userspace (due to an older version of the userspace code perhaps), the kernel will function as it did previously - preserving backwards compatibility. Additionally, flush requests are performed lazily when only clear requests exist. Signed-off-by: Dongmao Zhang <dmzhang@suse.com> Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>		2014-01-21 23:46:27 -05:00
..
bcache	bcache: defensively handle format strings	2013-11-10 21:56:43 -08:00
persistent-data	dm space map metadata: fix bug in resizing of thin metadata	2014-01-21 12:15:01 -05:00
bitmap.c	sysfs: clean up sysfs_get_dirent()	2013-09-26 15:33:18 -07:00
bitmap.h	md/bitmap: record the space available for the bitmap in the superblock.	2012-05-22 13:55:34 +10:00
dm-bio-prison.c	dm: add cache target	2013-03-01 22:45:51 +00:00
dm-bio-prison.h	dm: add cache target	2013-03-01 22:45:51 +00:00
dm-bio-record.h
dm-bufio.c	dm snapshot: use dm-bufio prefetch	2014-01-14 23:23:03 -05:00
dm-bufio.h	dm snapshot: use dm-bufio prefetch	2014-01-14 23:23:03 -05:00
dm-builtin.c	dm sysfs: fix a module unload race	2014-01-14 23:23:04 -05:00
dm-cache-block-types.h	dm: add cache target	2013-03-01 22:45:51 +00:00
dm-cache-metadata.c	dm cache metadata: check the metadata version when reading the superblock	2013-11-11 11:37:49 -05:00
dm-cache-metadata.h	dm cache: add passthrough mode	2013-11-11 11:37:49 -05:00
dm-cache-policy-cleaner.c	dm cache: policy change version from string to integer set	2013-03-20 17:21:27 +00:00
dm-cache-policy-internal.h	dm cache: add remove_cblock method to policy interface	2013-11-11 11:37:50 -05:00
dm-cache-policy-mq.c	dm cache: add policy name to status output	2014-01-16 13:44:11 -05:00
dm-cache-policy.c	dm cache: add policy name to status output	2014-01-16 13:44:11 -05:00
dm-cache-policy.h	dm cache: add policy name to status output	2014-01-16 13:44:11 -05:00
dm-cache-target.c	dm cache: add policy name to status output	2014-01-16 13:44:11 -05:00
dm-crypt.c	tree-wide: use reinit_completion instead of INIT_COMPLETION	2013-11-15 09:32:21 +09:00
dm-delay.c	dm delay: use per-bio data instead of a mempool and slab cache	2014-01-07 10:11:45 -05:00
dm-exception-store.c	dm: replace simple_strtoul	2012-07-27 15:07:59 +01:00
dm-exception-store.h
dm-flakey.c	dm flakey: correct ctr alloc failure mesg	2013-07-10 23:41:17 +01:00
dm-io.c	dm: add reserved_bio_based_ios module parameter	2013-09-23 10:42:24 -04:00
dm-ioctl.c	dm: allow remove to be deferred	2013-11-09 18:20:22 -05:00
dm-kcopyd.c	dm: stop using WQ_NON_REENTRANT	2013-08-23 09:02:13 -04:00
dm-linear.c	dm: rename request variables to bios	2013-03-01 22:45:47 +00:00
dm-log-userspace-base.c	dm log userspace: allow mark requests to piggyback on flush requests	2014-01-21 23:46:27 -05:00
dm-log-userspace-transfer.c	connector/userns: replace netlink uses of cap_raised() with capable()	2012-05-10 23:21:39 -04:00
dm-log-userspace-transfer.h
dm-log.c	dm: use memweight()	2012-07-30 17:25:16 -07:00
dm-mpath.c	dm mpath: requeue I/O during pg_init	2013-11-05 11:20:34 -05:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-raid1.c	dm: stop using WQ_NON_REENTRANT	2013-08-23 09:02:13 -04:00
dm-raid.c	MD: Remember the last sync operation that was performed	2013-06-26 12:38:24 +10:00
dm-region-hash.c	dm raid1: fix crash with mirror recovery and discard	2012-07-20 14:25:03 +01:00
dm-round-robin.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-service-time.c	dm: reject trailing characters in sccanf input	2012-03-28 18:41:26 +01:00
dm-snap-persistent.c	dm snapshot: use dm-bufio prefetch	2014-01-14 23:23:03 -05:00
dm-snap-transient.c
dm-snap.c	dm snapshot: use GFP_KERNEL when initializing exceptions	2014-01-14 11:18:16 -05:00
dm-stats.c	dm stats: initialize read-only module parameter	2013-12-10 19:13:21 -05:00
dm-stats.h	dm: add statistics support	2013-09-05 20:46:06 -04:00
dm-stripe.c	dm stripe: silence a couple sparse warnings	2013-09-06 11:36:01 -04:00
dm-switch.c	dm: add switch target	2013-07-10 23:41:19 +01:00
dm-sysfs.c	dm sysfs: fix a module unload race	2014-01-14 23:23:04 -05:00
dm-table.c	dm table: remove unused buggy code that extends the targets array	2014-01-07 10:11:44 -05:00
dm-target.c	dm: allow error target to replace bio-based and request-based targets	2013-09-05 20:46:05 -04:00
dm-thin-metadata.c	dm thin: fix discard support to a previously shared block	2014-01-07 10:11:43 -05:00
dm-thin-metadata.h	dm thin: use bool rather than unsigned for flags in structures	2014-01-07 10:14:18 -05:00
dm-thin.c	dm thin: fix pool feature parsing	2014-01-15 21:16:24 -05:00
dm-uevent.c
dm-uevent.h
dm-verity.c	dm verity: use __ffs and __fls	2013-07-10 23:41:17 +01:00
dm-zero.c	dm: rename request variables to bios	2013-03-01 22:45:47 +00:00
dm.c	dm sysfs: fix a module unload race	2014-01-14 23:23:04 -05:00
dm.h	dm sysfs: fix a module unload race	2014-01-14 23:23:04 -05:00
faulty.c	block: Add bio_end_sector()	2013-03-23 14:15:29 -07:00
Kconfig	dm sysfs: fix a module unload race	2014-01-14 23:23:04 -05:00
linear.c	block: Add bio_end_sector()	2013-03-23 14:15:29 -07:00
linear.h
Makefile	dm sysfs: fix a module unload race	2014-01-14 23:23:04 -05:00
md.c	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2013-12-05 15:33:27 -08:00
md.h	Merge branch 'for-3.13/core' of git://git.kernel.dk/linux-block	2013-11-14 12:08:14 +09:00
multipath.c	MD: change the parameter of md thread	2012-10-11 13:34:00 +11:00
multipath.h
raid0.c	md: fix buglet in RAID5 -> RAID0 conversion.	2013-06-26 12:38:19 +10:00
raid0.h	md: add proper merge_bvec handling to RAID0 and Linear.	2012-03-19 12:46:39 +11:00
raid1.c	md update for 3.13.	2013-11-20 13:05:25 -08:00
raid1.h	raid1: Rewrite the implementation of iobarrier.	2013-11-19 15:19:18 +11:00
raid5.c	md/raid5: fix newly-broken locking in get_active_stripe.	2013-11-28 11:00:15 +11:00
raid5.h	md update for 3.13.	2013-11-20 13:05:25 -08:00
raid10.c	md update for 3.13.	2013-11-20 13:05:25 -08:00
raid10.h	MD RAID10: Improve redundancy for 'far' and 'offset' algorithms (part 1)	2013-02-26 11:55:30 +11:00