diff options
Diffstat (limited to 'usr/src/uts/common/fs/dnlc.c')
| -rw-r--r-- | usr/src/uts/common/fs/dnlc.c | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/usr/src/uts/common/fs/dnlc.c b/usr/src/uts/common/fs/dnlc.c index 25327d2852..c949117da6 100644 --- a/usr/src/uts/common/fs/dnlc.c +++ b/usr/src/uts/common/fs/dnlc.c @@ -921,50 +921,6 @@ dnlc_fs_purge1(vnodeops_t *vop) } /* - * Perform a reverse lookup in the DNLC. This will find the first occurrence of - * the vnode. If successful, it will return the vnode of the parent, and the - * name of the entry in the given buffer. If it cannot be found, or the buffer - * is too small, then it will return NULL. Note that this is a highly - * inefficient function, since the DNLC is constructed solely for forward - * lookups. - */ -vnode_t * -dnlc_reverse_lookup(vnode_t *vp, char *buf, size_t buflen) -{ - nc_hash_t *nch; - ncache_t *ncp; - vnode_t *pvp; - - if (!doingcache) - return (NULL); - - for (nch = nc_hash; nch < &nc_hash[nc_hashsz]; nch++) { - mutex_enter(&nch->hash_lock); - ncp = nch->hash_next; - while (ncp != (ncache_t *)nch) { - /* - * We ignore '..' entries since it can create - * confusion and infinite loops. - */ - if (ncp->vp == vp && !(ncp->namlen == 2 && - 0 == bcmp(ncp->name, "..", 2)) && - ncp->namlen < buflen) { - bcopy(ncp->name, buf, ncp->namlen); - buf[ncp->namlen] = '\0'; - pvp = ncp->dp; - /* VN_HOLD 2 of 2 in this file */ - VN_HOLD_CALLER(pvp); - mutex_exit(&nch->hash_lock); - return (pvp); - } - ncp = ncp->hash_next; - } - mutex_exit(&nch->hash_lock); - } - - return (NULL); -} -/* * Utility routine to search for a cache entry. Return the * ncache entry if found, NULL otherwise. */ |