diff options
Diffstat (limited to 'fs/buffer.c')
| -rw-r--r-- | fs/buffer.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index a17c386a142c..10effe583d47 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -1235,16 +1235,18 @@ static void bh_lru_install(struct buffer_head *bh) int i; check_irqs_on(); + bh_lru_lock(); + /* * the refcount of buffer_head in bh_lru prevents dropping the * attached page(i.e., try_to_free_buffers) so it could cause * failing page migration. * Skip putting upcoming bh into bh_lru until migration is done. */ - if (lru_cache_disabled()) + if (lru_cache_disabled()) { + bh_lru_unlock(); return; - - bh_lru_lock(); + } b = this_cpu_ptr(&bh_lrus); for (i = 0; i < BH_LRU_SIZE; i++) { |