ceph_permission  1827 fs/ceph/dir.c  	.permission = ceph_permission,
ceph_permission  1846 fs/ceph/dir.c  	.permission = ceph_permission,
ceph_permission    95 fs/ceph/inode.c 	.permission = ceph_permission,
ceph_permission   932 fs/ceph/super.h extern int ceph_permission(struct inode *inode, int mask);