diff options
| -rw-r--r-- | drivers/md/raid5-cache.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c index ea1480392eba..30c7e5e79a02 100644 --- a/drivers/md/raid5-cache.c +++ b/drivers/md/raid5-cache.c @@ -550,8 +550,13 @@ static void __r5l_stripe_write_finished(struct r5l_io_unit *io) spin_lock_irqsave(&log->io_list_lock, flags); __r5l_set_io_unit_state(io, IO_UNIT_STRIPE_END); + /* might move 0 entry */ r5l_move_io_unit_list(&log->flushed_ios, &log->stripe_end_ios, IO_UNIT_STRIPE_END); + if (list_empty(&log->stripe_end_ios)) { + spin_unlock_irqrestore(&log->io_list_lock, flags); + return; + } last = list_last_entry(&log->stripe_end_ios, struct r5l_io_unit, log_sibling); |