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authorKent Overstreet <kmo@daterainc.com>2014-03-20 00:49:37 (GMT)
committerKent Overstreet <kmo@daterainc.com>2014-08-04 22:23:02 (GMT)
commit5b1016e62f74c53e0330403025954c8d95384c03 (patch)
tree2ca2e94a73af4a5fa51e9dc13d8c68df3d3babf5 /drivers
parent4c834452aad01531db949414f94f817a86348d59 (diff)
downloadlinux-5b1016e62f74c53e0330403025954c8d95384c03.tar.xz
bcache: Fix a bug when detaching
After detaching a backing device from a cache set, a bit wasn't getting reset meaning the second detach wouldn't work correctly. Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/md/bcache/super.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 926ded8..1ea9fa2 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -927,6 +927,7 @@ static void cached_dev_detach_finish(struct work_struct *w)
list_move(&dc->list, &uncached_devices);
clear_bit(BCACHE_DEV_DETACHING, &dc->disk.flags);
+ clear_bit(BCACHE_DEV_UNLINK_DONE, &dc->disk.flags);
mutex_unlock(&bch_register_lock);
@@ -1405,9 +1406,11 @@ static void cache_set_flush(struct closure *cl)
if (ca->alloc_thread)
kthread_stop(ca->alloc_thread);
- cancel_delayed_work_sync(&c->journal.work);
- /* flush last journal entry if needed */
- c->journal.work.work.func(&c->journal.work.work);
+ if (c->journal.cur) {
+ cancel_delayed_work_sync(&c->journal.work);
+ /* flush last journal entry if needed */
+ c->journal.work.work.func(&c->journal.work.work);
+ }
closure_return(cl);
}