CEPH_CAP_SLINK    581 include/linux/ceph/ceph_fs.h #define CEPH_CAP_LINK_SHARED  (CEPH_CAP_GSHARED  << CEPH_CAP_SLINK)
CEPH_CAP_SLINK    582 include/linux/ceph/ceph_fs.h #define CEPH_CAP_LINK_EXCL     (CEPH_CAP_GEXCL     << CEPH_CAP_SLINK)