diff options
Diffstat (limited to 'drivers/md/dm-mpath.c')
| -rw-r--r-- | drivers/md/dm-mpath.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index bf5175805b1d..87b6a2c98c73 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -472,7 +472,14 @@ static bool __must_push_back(struct multipath *m) static bool must_push_back_rq(struct multipath *m) { - return test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags) || __must_push_back(m); + unsigned long flags; + bool ret; + + spin_lock_irqsave(&m->lock, flags); + ret = (test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags) || __must_push_back(m)); + spin_unlock_irqrestore(&m->lock, flags); + + return ret; } /* @@ -1621,16 +1628,12 @@ static int multipath_end_io(struct dm_target *ti, struct request *clone, if (pgpath) fail_path(pgpath); - if (!atomic_read(&m->nr_valid_paths)) { - unsigned long flags; - spin_lock_irqsave(&m->lock, flags); - if (!must_push_back_rq(m)) { - if (error == BLK_STS_IOERR) - dm_report_EIO(m); - /* complete with the original error */ - r = DM_ENDIO_DONE; - } - spin_unlock_irqrestore(&m->lock, flags); + if (!atomic_read(&m->nr_valid_paths) && + !must_push_back_rq(m)) { + if (error == BLK_STS_IOERR) + dm_report_EIO(m); + /* complete with the original error */ + r = DM_ENDIO_DONE; } } |