Joe Thornber fafc7a815e dm thin: switch to read only mode if a mapping insert fails ... Switch the thin pool to read-only mode when dm_thin_insert_block() fails since there is little reason to expect the cause of the failure to be resolved without further action by user space. This issue was noticed with the device-mapper-test-suite using: dmtest run --suite thin-provisioning -n /exhausting_metadata_space_causes_fail_mode/ The quantity of errors logged in this case must be reduced. before patch: device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: dm_thin_insert_block() failed device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map metadata: unable to allocate new metadata block <snip ... these repeat for a long while ... > device-mapper: space map metadata: unable to allocate new metadata block device-mapper: space map common: dm_tm_shadow_block() failed device-mapper: thin: 253:4: no free metadata space available. device-mapper: thin: 253:4: switching pool to read-only mode after patch: device-mapper: space map metadata: unable to allocate new metadata block device-mapper: thin: 253:4: dm_thin_insert_block() failed: error = -28 device-mapper: thin: 253:4: switching pool to read-only mode Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org		2013-12-10 16:34:29 -05:00
..
bcache	bcache: Fix a null ptr deref regression	2013-10-10 18:17:39 -07:00
persistent-data	dm space map metadata: return on failure in sm_metadata_new_block	2013-12-10 16:34:28 -05:00
bitmap.c	md: replace strict_strto*() with kstrto*()	2013-06-14 08:10:26 +10:00
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	drivers: convert shrinkers to new count/scan API	2013-09-10 18:56:32 -04:00
dm-bufio.h	dm bufio: prefetch	2012-03-28 18:41:29 +01:00
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: resolve small nits and improve Documentation	2013-11-12 13:11:09 -05:00
dm-cache-policy.c	dm cache: return -EINVAL if the user specifies unknown cache policy	2013-11-09 18:20:18 -05:00
dm-cache-policy.h	dm cache: add remove_cblock method to policy interface	2013-11-11 11:37:50 -05:00
dm-cache-target.c	dm cache: resolve small nits and improve Documentation	2013-11-12 13:11:09 -05:00
dm-crypt.c	dm crypt: add TCW IV mode for old CBC TCRYPT containers	2013-11-09 18:20:20 -05:00
dm-delay.c	dm delay: fix a possible deadlock due to shared workqueue	2013-11-18 11:23:21 -05:00
dm-exception-store.c	dm: replace simple_strtoul	2012-07-27 15:07:59 +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: 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	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
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	md: Add module.h to all files using it implicitly	2011-10-31 19:31:18 -04:00
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: workaround for a false positive lockdep warning	2013-09-20 10:36:34 -04:00
dm-snap-transient.c	md: Add in export.h for files using EXPORT_SYMBOL	2011-10-31 19:31:19 -04:00
dm-snap.c	dm snapshot: avoid snapshot space leak on crash	2013-12-10 16:34:25 -05:00
dm-stats.c	dm stats: fix possible counter corruption on 32-bit systems	2013-09-18 14:41:06 -04:00
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-table.c	dm table: fail dm_table_create on dm_round_up overflow	2013-12-10 16:34:27 -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: generate event when metadata threshold passed	2013-05-10 14:37:21 +01:00
dm-thin-metadata.h	dm thin: generate event when metadata threshold passed	2013-05-10 14:37:21 +01:00
dm-thin.c	dm thin: switch to read only mode if a mapping insert fails	2013-12-10 16:34:29 -05:00
dm-uevent.c	md: Add in export.h for files using EXPORT_SYMBOL	2011-10-31 19:31:19 -04:00
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: allow remove to be deferred	2013-11-09 18:20:22 -05:00
dm.h	dm: allow remove to be deferred	2013-11-09 18:20:22 -05:00
faulty.c	block: Add bio_end_sector()	2013-03-23 14:15:29 -07:00
Kconfig	dm: fix Kconfig menu indentation	2013-11-09 18:20:22 -05:00
linear.c	block: Add bio_end_sector()	2013-03-23 14:15:29 -07:00
linear.h	md/linear: typedef removal: linear_conf_t -> struct linear_conf	2011-10-11 16:48:54 +11:00
Makefile	dm: add statistics support	2013-09-05 20:46:06 -04:00
md.c	md: avoid deadlock when dirty buffers during md_stop.	2013-08-27 16:45:00 +10:00
md.h	md: avoid deadlock when dirty buffers during md_stop.	2013-08-27 16:45:00 +10:00
multipath.c	MD: change the parameter of md thread	2012-10-11 13:34:00 +11:00
multipath.h	md/multipath: typedef removal: multipath_conf_t -> struct mpconf	2011-10-11 16:48:57 +11:00
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/raid1: fix bio handling problems in process_checks()	2013-07-18 14:18:04 +10:00
raid1.h	md/raid1: prevent merging too large request	2012-07-31 10:03:53 +10:00
raid5.c	raid5: only wakeup necessary threads	2013-09-02 10:31:29 +10:00
raid5.h	raid5: only wakeup necessary threads	2013-09-02 10:31:29 +10:00
raid10.c	md/raid10: remove use-after-free bug.	2013-07-25 16:46:53 +10:00
raid10.h	MD RAID10: Improve redundancy for 'far' and 'offset' algorithms (part 1)	2013-02-26 11:55:30 +11:00