linux/drivers/md
NeilBrown 3cb5edf454 md/raid5: switch to use conf->chunk_sectors in place of mddev->chunk_sectors where possible
The chunk_sectors and new_chunk_sectors fields of mddev can be changed
any time (via sysfs) that the reconfig mutex can be taken.  So raid5
keeps internal copies in 'conf' which are stable except for a short
locked moment when reshape stops/starts.

So any access that does not hold reconfig_mutex should use the 'conf'
values, not the 'mddev' values.
Several don't.

This could result in corruption if new values were written at awkward
times.

Also use min() or max() rather than open-coding.

Signed-off-by: NeilBrown <neilb@suse.com>
2015-08-31 19:32:48 +02:00
..
bcache bcache: don't embed 'return' statements in closure macros 2015-07-11 09:57:32 -06:00
persistent-data dm btree: silence lockdep lock inversion in dm_btree_del() 2015-07-06 10:45:02 -04:00
bitmap.c Some md fixes for 4.2 2015-07-25 11:24:58 -07:00
bitmap.h md-cluster: re-add capabilities 2015-04-22 07:59:39 +10:00
dm-bio-prison.c dm bio prison: add dm_cell_promote_or_release() 2015-05-29 14:19:06 -04:00
dm-bio-prison.h dm bio prison: add dm_cell_promote_or_release() 2015-05-29 14:19:06 -04:00
dm-bio-record.h
dm-bufio.c dm bufio: fix time comparison to use time_after_eq() 2015-02-09 13:06:48 -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 cache: revert "remove remainder of distinct discard block size" 2014-11-10 15:25:30 -05:00
dm-cache-metadata.c dm cache: add fail io mode and needs_check flag 2015-06-11 17:13:00 -04:00
dm-cache-metadata.h dm cache: add fail io mode and needs_check flag 2015-06-11 17:13:00 -04:00
dm-cache-policy-cleaner.c dm cache: pass a new 'critical' flag to the policies when requesting writeback work 2015-05-29 14:19:04 -04:00
dm-cache-policy-internal.h dm cache: age and write back cache entries even without active IO 2015-06-11 17:13:01 -04:00
dm-cache-policy-mq.c dm cache: switch the "default" cache replacement policy from mq to smq 2015-06-17 12:40:38 -04:00
dm-cache-policy-smq.c dm cache policy smq: fix alloc_bitset check that always evaluates as false 2015-07-27 07:58:15 -04:00
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: age and write back cache entries even without active IO 2015-06-11 17:13:01 -04:00
dm-cache-target.c dm cache: fix device destroy hang due to improper prealloc_used accounting 2015-07-29 14:32:09 -04:00
dm-crypt.c dm crypt: add comments to better describe crypto processing logic 2015-05-29 14:19:02 -04:00
dm-delay.c dm delay: use msecs_to_jiffies for time conversion 2015-04-15 12:10:21 -04:00
dm-era-target.c dm era: check for a non-NULL metadata object before closing it 2014-06-03 13:44:08 -04:00
dm-exception-store.c
dm-exception-store.h
dm-flakey.c
dm-io.c dm io: deal with wandering queue limits when handling REQ_DISCARD and REQ_WRITE_SAME 2015-02-27 14:53:32 -05:00
dm-ioctl.c dm: only initialize the request_queue once 2015-04-30 10:25:21 -04:00
dm-kcopyd.c
dm-linear.c
dm-log-userspace-base.c dm log userspace base: fix compile warning 2015-04-15 12:10:20 -04:00
dm-log-userspace-transfer.c dm log userspace transfer: match wait_for_completion_timeout return type 2015-04-15 12:10:20 -04:00
dm-log-userspace-transfer.h
dm-log-writes.c dm log writes: use ULL suffix for 64-bit constants 2015-05-29 14:19:01 -04:00
dm-log.c
dm-mpath.c dm mpath: fix leak of dm_mpath_io structure in blk-mq .queue_rq error path 2015-05-27 17:37:22 -04:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid1.c dm raid1: keep issuing IO after leg failure 2015-05-29 14:19:02 -04:00
dm-raid.c dm raid: add support for the MD RAID0 personality 2015-05-29 14:19:00 -04:00
dm-region-hash.c
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c dm snapshot: remove unnecessary NULL checks before vfree() calls 2015-02-09 13:06:49 -05:00
dm-snap-transient.c
dm-snap.c block: remove management of bi_remaining when restoring original bi_end_io 2015-05-22 08:58:55 -06:00
dm-stats.c dm stats: add support for request-based DM devices 2015-06-17 12:40:41 -04:00
dm-stats.h dm stats: support precise timestamps 2015-06-17 12:40:40 -04:00
dm-stripe.c dm stripe: drop useless exit point from dm_stripe_init() 2015-05-29 14:19:01 -04:00
dm-switch.c dm switch: efficiently support repetitive patterns 2014-08-01 12:30:37 -04:00
dm-sysfs.c dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attr 2015-04-15 12:10:17 -04:00
dm-table.c Revert "block, dm: don't copy bios for request clones" 2015-06-26 10:11:58 -04:00
dm-target.c dm: allocate requests in target when stacking on blk-mq devices 2015-02-09 13:06:47 -05:00
dm-thin-metadata.c dm thin metadata: fix a race when entering fail mode 2015-06-11 17:13:06 -04:00
dm-thin-metadata.h dm thin metadata: add dm_thin_remove_range() 2015-06-11 17:13:04 -04:00
dm-thin.c dm thin: return -ENOSPC when erroring retry list due to out of data space 2015-07-26 17:39:19 -04:00
dm-uevent.c
dm-uevent.h
dm-verity.c block: remove management of bi_remaining when restoring original bi_end_io 2015-05-22 08:58:55 -06:00
dm-zero.c dm crypt, dm zero: update author name following legal name change 2014-07-10 16:44:14 -04:00
dm.c dm: fix use after free crash due to incorrect cleanup sequence 2015-07-13 09:14:11 -04:00
dm.h - Revert block and DM core changes the removed request-based DM's 2015-06-26 12:35:01 -07:00
faulty.c md: rename ->stop to ->free 2015-02-04 08:35:52 +11:00
Kconfig dm crypt: update wiki page URL 2015-07-27 07:58:16 -04:00
linear.c md: rename ->stop to ->free 2015-02-04 08:35:52 +11:00
linear.h
Makefile dm cache: add stochastic-multi-queue (smq) policy 2015-06-11 17:12:59 -04:00
md-cluster.c Fix read-balancing during node failure 2015-07-24 13:37:59 +10:00
md-cluster.h Fix read-balancing during node failure 2015-07-24 13:37:59 +10:00
md.c md: close some races between setting and checking sync_action. 2015-08-31 19:30:40 +02:00
md.h writeback: separate out include/linux/backing-dev-defs.h 2015-06-02 08:33:34 -06:00
multipath.c md: rename ->stop to ->free 2015-02-04 08:35:52 +11:00
multipath.h
raid0.c md/raid0: update queue parameter in a safer location. 2015-08-03 17:12:44 +10:00
raid0.h
raid1.c md: close some races between setting and checking sync_action. 2015-08-31 19:30:40 +02:00
raid1.h md: make ->congested robust against personality changes. 2015-02-04 08:35:52 +11:00
raid5.c md/raid5: switch to use conf->chunk_sectors in place of mddev->chunk_sectors where possible 2015-08-31 19:32:48 +02:00
raid5.h md/raid5: avoid races when changing cache size. 2015-07-22 14:04:15 +10:00
raid10.c md/raid10: fix a few typos in comments 2015-08-31 19:32:09 +02:00
raid10.h md: make ->congested robust against personality changes. 2015-02-04 08:35:52 +11:00