extern void ceph_con_keepalive(struct ceph_connection *con);
extern void ceph_msg_data_set_pages(struct ceph_msg *msg, struct page **pages,
- unsigned int page_count, size_t alignment);
+ size_t length, size_t alignment);
extern struct ceph_msg *ceph_msg_new(int type, int front_len, gfp_t flags,
bool can_fail);