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rbd: warn on update_snaps failure on notify

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Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2011-05-12 16:08:30 -07:00
parent 9d6fcb081a
commit 13143d2d1c
1 changed files with 6 additions and 1 deletions
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7
drivers/block/rbd.c
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@ -1191,14 +1191,19 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev,
static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data) static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data)
{ {
struct rbd_device *dev = (struct rbd_device *)data; struct rbd_device *dev = (struct rbd_device *)data;
int rc;
if (!dev) if (!dev)
return; return;
dout("rbd_watch_cb %s notify_id=%lld opcode=%d\n", dev->obj_md_name, dout("rbd_watch_cb %s notify_id=%lld opcode=%d\n", dev->obj_md_name,
notify_id, (int)opcode); notify_id, (int)opcode);
mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
__rbd_update_snaps(dev); rc = __rbd_update_snaps(dev);
mutex_unlock(&ctl_mutex); mutex_unlock(&ctl_mutex);
if (rc)
pr_warning(DRV_NAME "%d got notification but failed to update"
" snaps: %d\n", dev->major, rc);
rbd_req_sync_notify_ack(dev, ver, notify_id, dev->obj_md_name); rbd_req_sync_notify_ack(dev, ver, notify_id, dev->obj_md_name);
} }