Signed-off-by: Dongsheng Yang <dongsheng.yang@xxxxxxxxxxxx>
---
drivers/block/rbd.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 70ca81d..a13bb06 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -3025,7 +3025,9 @@ static void rbd_acquire_lock(struct work_struct *work)
* want to block.
*/
if (!(rbd_dev->disk->flags & GENHD_FL_UP)) {
+ down_write(&rbd_dev->lock_rwsem);
set_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags);
+ up_write(&rbd_dev->lock_rwsem);
/* wake "rbd map --exclusive" process */
wake_requests(rbd_dev, false);
}
@@ -3471,7 +3473,9 @@ static void rbd_reregister_watch(struct work_struct *work)
if (ret) {
rbd_warn(rbd_dev, "failed to reregister watch: %d", ret);
if (ret == -EBLACKLISTED || ret == -ENOENT) {
+ down_write(&rbd_dev->lock_rwsem);
set_bit(RBD_DEV_FLAG_BLACKLISTED, &rbd_dev->flags);
+ up_write(&rbd_dev->lock_rwsem);
wake_requests(rbd_dev, true);
} else {
queue_delayed_work(rbd_dev->task_wq,
--
1.8.3.1
--
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