diff options
Diffstat (limited to 'block/blk-cgroup.c')
| -rw-r--r-- | block/blk-cgroup.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 1c1ebeb51003..0ecb4cce8af2 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -527,6 +527,9 @@ restart: list_for_each_entry_safe(blkg, n, &q->blkg_list, q_node) { struct blkcg *blkcg = blkg->blkcg; + if (hlist_unhashed(&blkg->blkcg_node)) + continue; + spin_lock(&blkcg->lock); blkg_destroy(blkg); spin_unlock(&blkcg->lock); |