diff options
| author | Josh Durgin <josh.durgin@dreamhost.com> | 2011-12-05 18:10:44 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 08:51:18 -0800 |
| commit | ca9a5e33a97a965378a2a0387fd8acf3a0144950 (patch) | |
| tree | 016bd826934dc806e785043201bc63285668a276 /drivers/block/rbd.c | |
| parent | fc5eb627a897ac41581692abf60ffea874df2e55 (diff) | |
rbd: send header version when notifying
Previously the original header version was sent. Now, we update it
when the header changes.
Signed-off-by: Josh Durgin <josh.durgin@dreamhost.com>
Reviewed-by: Alex Elder <elder@inktank.com>
(cherry picked from commit a71b891bc7d77a070e723c8c53d1dd73cf931555)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/block/rbd.c')
| -rw-r--r-- | drivers/block/rbd.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index dc26c2e48d83..52e295defb98 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1195,7 +1195,7 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev, if (ret < 0) return ret; - ops[0].watch.ver = cpu_to_le64(dev->header.obj_version); + ops[0].watch.ver = cpu_to_le64(ver); ops[0].watch.cookie = notify_id; ops[0].watch.flag = 0; @@ -1215,6 +1215,7 @@ 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) { struct rbd_device *dev = (struct rbd_device *)data; + u64 hver; int rc; if (!dev) @@ -1224,12 +1225,13 @@ static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data) notify_id, (int)opcode); mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING); rc = __rbd_update_snaps(dev); + hver = dev->header.obj_version; mutex_unlock(&ctl_mutex); if (rc) pr_warning(RBD_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, hver, notify_id, dev->obj_md_name); } /* @@ -1740,6 +1742,7 @@ static int __rbd_update_snaps(struct rbd_device *rbd_dev) kfree(rbd_dev->header.snap_names); kfree(rbd_dev->header.snap_sizes); + rbd_dev->header.obj_version = h.obj_version; rbd_dev->header.image_size = h.image_size; rbd_dev->header.total_snaps = h.total_snaps; rbd_dev->header.snapc = h.snapc; |