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Diffstat (limited to 'drivers/block/rbd.c')
-rw-r--r--drivers/block/rbd.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 9712fad82bc6..78d0011a7556 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1191,14 +1191,19 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev,
1191static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data) 1191static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data)
1192{ 1192{
1193 struct rbd_device *dev = (struct rbd_device *)data; 1193 struct rbd_device *dev = (struct rbd_device *)data;
1194 int rc;
1195
1194 if (!dev) 1196 if (!dev)
1195 return; 1197 return;
1196 1198
1197 dout("rbd_watch_cb %s notify_id=%lld opcode=%d\n", dev->obj_md_name, 1199 dout("rbd_watch_cb %s notify_id=%lld opcode=%d\n", dev->obj_md_name,
1198 notify_id, (int)opcode); 1200 notify_id, (int)opcode);
1199 mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); 1201 mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
1200 __rbd_update_snaps(dev); 1202 rc = __rbd_update_snaps(dev);
1201 mutex_unlock(&ctl_mutex); 1203 mutex_unlock(&ctl_mutex);
1204 if (rc)
1205 pr_warning(DRV_NAME "%d got notification but failed to update"
1206 " snaps: %d\n", dev->major, rc);
1202 1207
1203 rbd_req_sync_notify_ack(dev, ver, notify_id, dev->obj_md_name); 1208 rbd_req_sync_notify_ack(dev, ver, notify_id, dev->obj_md_name);
1204} 1209}