CEPH_F_SYNC
if (!(fi->flags & CEPH_F_SYNC) && !direct_lock)
(fi->flags & CEPH_F_SYNC)) {
(fi->flags & CEPH_F_SYNC))
fi->flags |= CEPH_F_SYNC;
if (!(fi->flags & CEPH_F_SYNC) && !direct_lock)
(iocb->ki_flags & IOCB_DIRECT) || (fi->flags & CEPH_F_SYNC) ||
fi->flags |= CEPH_F_SYNC;