Mike Snitzer b60ab990cc dm thin: do not expose non-zero discard limits if discards disabled ...

Fix issue where the block layer would stack the discard limits of the
pool's data device even if the "ignore_discard" pool feature was
specified.

The pool and thin device(s) still had discards disabled because the
QUEUE_FLAG_DISCARD request_queue flag wasn't set.  But to avoid user
confusion when "ignore_discard" is used: both the pool device and the
thin device(s) have zeroes for all discard limits.

Also, always set discard_zeroes_data_unsupported in targets because they
should never advertise the 'discard_zeroes_data' capability (even if the
pool's data device supports it).

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>

2013-09-23 10:42:06 -04:00

..

bcache

drivers: convert shrinkers to new count/scan API

2013-09-10 18:56:32 -04:00

persistent-data

dm space map: optimise sm_ll_dec and sm_ll_inc

2013-08-23 09:02:14 -04:00

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-cache-block-types.h

dm: add cache target

2013-03-01 22:45:51 +00:00

dm-cache-metadata.c

dm cache: replace memcpy with struct assignment

2013-05-10 14:37:18 +01:00

dm-cache-metadata.h

dm cache: policy ignore hints if generated by different version

2013-03-20 17:21:28 +00:00

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: policy change version from string to integer set

2013-03-20 17:21:27 +00:00

dm-cache-policy-mq.c

dm cache: avoid conflicting remove_mapping() in mq policy

2013-08-16 15:56:51 -04:00

dm-cache-policy.c

dm cache: policy change version from string to integer set

2013-03-20 17:21:27 +00:00

dm-cache-policy.h

dm cache policy: fix description of lookup fn

2013-05-10 14:37:17 +01:00

dm-cache-target.c

dm cache: eliminate holes in cache structure

2013-08-23 09:02:14 -04:00

dm-crypt.c

dm: stop using WQ_NON_REENTRANT

2013-08-23 09:02:13 -04:00

dm-delay.c

dm: rename request variables to bios

2013-03-01 22:45:47 +00:00

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 kcopyd: add WRITE SAME support to dm_kcopyd_zero

2012-12-21 20:23:37 +00:00

dm-ioctl.c

dm: add statistics support

2013-09-05 20:46:06 -04:00

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-transfer.c

…

dm-log-userspace-transfer.h

…

dm-log.c

dm: use memweight()

2012-07-30 17:25:16 -07:00

dm-mpath.c

dm mpath: disable WRITE SAME if it fails

2013-09-20 10:36:34 -04:00

dm-mpath.h

…

dm-path-selector.c

…

dm-path-selector.h

…

dm-queue-length.c

…

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-service-time.c

…

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

…

dm-snap.c

dm-snapshot: fix performance degradation due to small hash size

2013-09-20 10:36:34 -04:00

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 ioctl: increase granularity of type_lock when loading table

2013-09-05 20:46:06 -04:00

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: do not expose non-zero discard limits if discards disabled

2013-09-23 10:42:06 -04:00

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 mpath: disable WRITE SAME if it fails

2013-09-20 10:36:34 -04:00

dm.h

dm: add statistics support

2013-09-05 20:46:06 -04:00

faulty.c

block: Add bio_end_sector()

2013-03-23 14:15:29 -07:00

Kconfig

dm: add switch target

2013-07-10 23:41:19 +01:00

linear.c

block: Add bio_end_sector()

2013-03-23 14:15:29 -07:00

linear.h

…

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

…

raid0.c

md: fix buglet in RAID5 -> RAID0 conversion.

2013-06-26 12:38:19 +10:00

raid0.h

…

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