bcache: fix for gc and writeback race
authorNicholas Swenson <nks@daterainc.com>
Wed, 27 Nov 2013 03:14:23 +0000 (19:14 -0800)
committerKent Overstreet <kmo@daterainc.com>
Mon, 16 Dec 2013 22:22:58 +0000 (14:22 -0800)
Garbage collector needs to check keys in the writeback keybuf to
make sure it's not invalidating buckets to which the writeback
keys point to.

Signed-off-by: Nicholas Swenson <nks@daterainc.com>
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
drivers/md/bcache/btree.c

Simple merge