[PATCH 3.19.y-ckt 140/196] libceph: use the right footer size when skipping a message

3.19.8-ckt16 -stable review patch. If anyone has any objections, please let me know. ---8< From: Ilya Dryomov commit dbc0d3caff5b7591e0cf8e34ca686ca6f4479ee1 upstream. ceph_msg_footer is 21 bytes long, while

[PATCH 3.19.y-ckt 140/196] libceph: use the right footer size when skipping a message

3.19.8-ckt16 -stable review patch. If anyone has any objections, please let me know. ---8< From: Ilya Dryomov commit dbc0d3caff5b7591e0cf8e34ca686ca6f4479ee1 upstream. ceph_msg_footer is 21 bytes long, while ceph_msg_footer_old is