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| author | Slava Pestov <sp@daterainc.com> | 2014-05-20 21:20:28 +0200 |
|---|---|---|
| committer | Kent Overstreet <kmo@daterainc.com> | 2014-08-05 00:23:03 +0200 |
| commit | a664d0f05a2ec02c8f042db536d84d15d6e19e81 (patch) | |
| tree | a3edc9ae887c29918be9e17080511bde24c74c89 /drivers/md/bcache | |
| parent | bcache: fix lockdep warnings on shutdown (diff) | |
| download | linux-a664d0f05a2ec02c8f042db536d84d15d6e19e81.tar.xz linux-a664d0f05a2ec02c8f042db536d84d15d6e19e81.zip | |
bcache: fix crash on shutdown in passthrough mode
We never started the writeback thread in this case, so don't stop it.
Diffstat (limited to 'drivers/md/bcache')
| -rw-r--r-- | drivers/md/bcache/super.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 09573c2bcb5d..6ceaec35b871 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -1071,7 +1071,8 @@ static void cached_dev_free(struct closure *cl) struct cached_dev *dc = container_of(cl, struct cached_dev, disk.cl); cancel_delayed_work_sync(&dc->writeback_rate_update); - kthread_stop(dc->writeback_thread); + if (!IS_ERR_OR_NULL(dc->writeback_thread)) + kthread_stop(dc->writeback_thread); mutex_lock(&bch_register_lock); |