1716 	if ((femsp = fem_lock(vfsp->vfs_femhead)) == NULL) {  in fshead_mount()
1718 		fem_unlock(vfsp->vfs_femhead);  in fshead_mount()
1722 		fem_unlock(vfsp->vfs_femhead);  in fshead_mount()
1744 	if ((femsp = fem_lock(vfsp->vfs_femhead)) == NULL) {  in fshead_unmount()
1746 		fem_unlock(vfsp->vfs_femhead);  in fshead_unmount()
1750 		fem_unlock(vfsp->vfs_femhead);  in fshead_unmount()
1772 	if ((femsp = fem_lock(vfsp->vfs_femhead)) == NULL) {  in fshead_root()
1774 		fem_unlock(vfsp->vfs_femhead);  in fshead_root()
1778 		fem_unlock(vfsp->vfs_femhead);  in fshead_root()
1799 	if ((femsp = fem_lock(vfsp->vfs_femhead)) == NULL) {  in fshead_statvfs()
1801 		fem_unlock(vfsp->vfs_femhead);  in fshead_statvfs()
1805 		fem_unlock(vfsp->vfs_femhead);  in fshead_statvfs()
1827 	if ((femsp = fem_lock(vfsp->vfs_femhead)) == NULL) {  in fshead_sync()
1829 		fem_unlock(vfsp->vfs_femhead);  in fshead_sync()
1833 		fem_unlock(vfsp->vfs_femhead);  in fshead_sync()
1854 	if ((femsp = fem_lock(vfsp->vfs_femhead)) == NULL) {  in fshead_vget()
1856 		fem_unlock(vfsp->vfs_femhead);  in fshead_vget()
1860 		fem_unlock(vfsp->vfs_femhead);  in fshead_vget()
1881 	if ((femsp = fem_lock(vfsp->vfs_femhead)) == NULL) {  in fshead_mountroot()
1883 		fem_unlock(vfsp->vfs_femhead);  in fshead_mountroot()
1887 		fem_unlock(vfsp->vfs_femhead);  in fshead_mountroot()
1908 	if ((femsp = fem_lock(vfsp->vfs_femhead)) == NULL) {  in fshead_freevfs()
1910 		fem_unlock(vfsp->vfs_femhead);  in fshead_freevfs()
1914 		fem_unlock(vfsp->vfs_femhead);  in fshead_freevfs()
1935 	if ((femsp = fem_lock(vfsp->vfs_femhead)) == NULL) {  in fshead_vnstate()
1937 		fem_unlock(vfsp->vfs_femhead);  in fshead_vnstate()
1941 		fem_unlock(vfsp->vfs_femhead);  in fshead_vnstate()
3430 	fl = fem_get(v->vfs_femhead);  in fsem_is_installed()
3467 	error = fem_push_node(&vfsp->vfs_femhead, (void **)&vfsp->vfs_op,  in fsem_install()
3485 	e = fem_remove_node(v->vfs_femhead, (void **)&v->vfs_op,  in fsem_uninstall()
3502 		if (v->vfs_femhead != NULL) {  in fsem_setvfsops()
3504 			if ((fl = fem_lock(v->vfs_femhead)) != NULL) {  in fsem_setvfsops()
3506 				fem_unlock(v->vfs_femhead);  in fsem_setvfsops()
3509 			fem_unlock(v->vfs_femhead);  in fsem_setvfsops()
3524 	if (v->vfs_femhead != NULL) {  in fsem_getvfsops()
3526 		if ((fl = fem_lock(v->vfs_femhead)) != NULL) {  in fsem_getvfsops()
3529 		fem_unlock(v->vfs_femhead);  in fsem_getvfsops()