WSL2-Linux-Kernel/drivers/md/persistent-data
Joe Thornber e7e0f73047 dm btree: fix a bug in dm_btree_find_next_single()
dm_btree_find_next_single() can short-circuit the search for a block
with a return of -ENODATA if all entries are higher than the search key
passed to lower_bound().

This hasn't been a problem because of the way the btree has been used by
DM thinp.  But it must be fixed now in preparation for fixing the race
in DM thinp's handling of simultaneous block discard vs allocation.
Otherwise, once that fix is in place, some of the blocks in a discard
would not be unmapped as expected.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2016-07-20 12:43:34 -04:00
..
Kconfig dm bufio: store stacktrace in buffers to help find buffer leaks 2015-12-10 10:38:58 -05:00
Makefile dm persistent data: add bitset 2013-03-01 22:45:51 +00:00
dm-array.c dm persistent data: eliminate unnecessary return values 2015-10-31 19:06:02 -04:00
dm-array.h dm persistent data: add transactional array 2013-03-01 22:45:51 +00:00
dm-bitset.c dm bitset: only flush the current word if it has been dirtied 2014-03-27 16:56:23 -04:00
dm-bitset.h dm bitset: only flush the current word if it has been dirtied 2014-03-27 16:56:23 -04:00
dm-block-manager.c dm block manager: cleanup code that prints stacktrace 2015-12-10 10:38:56 -05:00
dm-block-manager.h dm persistent data: eliminate unnecessary return values 2015-10-31 19:06:02 -04:00
dm-btree-internal.h dm persistent data: eliminate unnecessary return values 2015-10-31 19:06:02 -04:00
dm-btree-remove.c - Revert a dm-multipath change that caused a regression for unprivledged 2015-11-04 21:19:53 -08:00
dm-btree-spine.c dm persistent data: eliminate unnecessary return values 2015-10-31 19:06:02 -04:00
dm-btree.c dm btree: fix a bug in dm_btree_find_next_single() 2016-07-20 12:43:34 -04:00
dm-btree.h dm thin metadata: fix bug in dm_thin_remove_range() 2015-12-02 13:26:49 -05:00
dm-persistent-data-internal.h dm: add persistent data library 2011-10-31 20:19:11 +00:00
dm-space-map-common.c dm persistent data: eliminate unnecessary return values 2015-10-31 19:06:02 -04:00
dm-space-map-common.h dm persistent data: only commit space map if index changed 2012-07-27 15:08:06 +01:00
dm-space-map-disk.c dm space map disk: fix sm_disk_count_is_more_than_one() 2015-02-13 19:32:58 -05:00
dm-space-map-disk.h dm: add persistent data library 2011-10-31 20:19:11 +00:00
dm-space-map-metadata.c dm space map metadata: remove unused variable in brb_pop() 2015-12-14 09:26:01 -05:00
dm-space-map-metadata.h dm thin: allow metadata space larger than supported to go unused 2014-02-27 11:49:08 -05:00
dm-space-map.h dm persistent data: add threshold callback to space map 2013-05-10 14:37:20 +01:00
dm-transaction-manager.c dm persistent data: eliminate unnecessary return values 2015-10-31 19:06:02 -04:00
dm-transaction-manager.h dm persistent data: eliminate unnecessary return values 2015-10-31 19:06:02 -04:00