3.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: Josh Durgin <[email protected]> Previously the original header version was sent. Now, we update it when the header changes. Signed-off-by: Josh Durgin <[email protected]> Reviewed-by: Alex Elder <[email protected]> (cherry picked from commit a71b891bc7d77a070e723c8c53d1dd73cf931555) Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/block/rbd.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1195,7 +1195,7 @@ static int rbd_req_sync_notify_ack(struc 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(struc 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 no 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 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
