sys/kern/vfs_cache.c

458  * cnp pointing to the name of the entry being sought. If the lookup
472 cache_lookup_times(dvp, vpp, cnp, tsp, ticksp)
475 	struct componentname *cnp;
484 		cnp->cn_flags &= ~MAKEENTRY;
494 	if (cnp->cn_nameptr[0] == '.') {
495 		if (cnp->cn_namelen == 1) {
498 			    dvp, cnp->cn_nameptr);
508 		if (cnp->cn_namelen == 2 && cnp->cn_nameptr[1] == '.') {
515 			if ((cnp->cn_flags & MAKEENTRY) == 0) {
533 			    dvp, cnp->cn_nameptr, *vpp);
545 	hash = fnv_32_buf(cnp->cn_nameptr, cnp->cn_namelen, FNV1_32_INIT);
549 		if (ncp->nc_dvp == dvp && ncp->nc_nlen == cnp->cn_namelen &&
550 		    !bcmp(nc_get_name(ncp), cnp->cn_nameptr, ncp->nc_nlen))
556 		SDT_PROBE(vfs, namecache, lookup, miss, dvp, cnp->cn_nameptr,
558 		if ((cnp->cn_flags & MAKEENTRY) == 0) {
568 	if ((cnp->cn_flags & MAKEENTRY) == 0) {
584 		    dvp, cnp->cn_nameptr, *vpp, ncp);
593 	if (cnp->cn_nameiop == CREATE) {
616 		cnp->cn_flags |= ISWHITEOUT;
649 		ltype = cnp->cn_lkflags & LK_TYPE_MASK;
665 	if (cnp->cn_flags & ISDOTDOT) {
674 	error = vget(*vpp, cnp->cn_lkflags | LK_INTERLOCK, cnp->cn_thread);
675 	if (cnp->cn_flags & ISDOTDOT) {
688 	if ((cnp->cn_flags & ISLASTCN) &&
689 	    (cnp->cn_lkflags & LK_TYPE_MASK) == LK_EXCLUSIVE) {
706 cache_enter_time(dvp, vp, cnp, tsp, dtsp)
709 	struct componentname *cnp;
722 	CTR3(KTR_VFS, "cache_enter(%p, %p, %s)", dvp, vp, cnp->cn_nameptr);
738 	if (cnp->cn_nameptr[0] == '.') {
739 		if (cnp->cn_namelen == 1)
741 		if (cnp->cn_namelen == 2 && cnp->cn_nameptr[1] == '.') {
785 	ncp = cache_alloc(cnp->cn_namelen, tsp != NULL);
799 	len = ncp->nc_nlen = cnp->cn_namelen;
800 	hash = fnv_32_buf(cnp->cn_nameptr, len, FNV1_32_INIT);
801 	strlcpy(nc_get_name(ncp), cnp->cn_nameptr, len + 1);
813 		    n2->nc_nlen == cnp->cn_namelen &&
814 		    !bcmp(nc_get_name(n2), cnp->cn_nameptr, n2->nc_nlen)) {
854 		if (cnp->cn_flags & ISWHITEOUT)
1020 	struct componentname *cnp = ap->a_cnp;
1021 	struct ucred *cred = cnp->cn_cred;
1022 	int flags = cnp->cn_flags;
1023 	struct thread *td = cnp->cn_thread;
1032 	    (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME))
1039 	error = cache_lookup(dvp, vpp, cnp);
1041 		return (VOP_CACHEDLOOKUP(dvp, vpp, cnp));
1444 	    struct componentname *cnp);
1446 	    struct componentname *cnp);
1449 cache_enter(struct vnode *dvp, struct vnode *vp, struct componentname *cnp)
1452 	cache_enter_time(dvp, vp, cnp, NULL, NULL);
1456 cache_lookup(struct vnode *dvp, struct vnode **vpp, struct componentname *cnp)
1459 	return (cache_lookup_times(dvp, vpp, cnp, NULL, NULL));