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authorKonstantin Belousov <kib@FreeBSD.org>2009-01-07 12:44:03 +0000
committerKonstantin Belousov <kib@FreeBSD.org>2009-01-07 12:44:03 +0000
commitf224d7f8e0d272e97b2208c102e720d4ebfafb69 (patch)
tree79d80321c5c007df5e78b10eefa2726f21807b42
parent13f1fb21d8f75529eb69c6a63df1e1ab6178f156 (diff)
Notes
-rw-r--r--sys/kern/vfs_cache.c33
1 files changed, 11 insertions, 22 deletions
diff --git a/sys/kern/vfs_cache.c b/sys/kern/vfs_cache.c
index b6b8d4cd88ea..4787f3358fc2 100644
--- a/sys/kern/vfs_cache.c
+++ b/sys/kern/vfs_cache.c
@@ -511,28 +511,18 @@ cache_enter(dvp, vp, cnp)
CACHE_LOCK();
/*
- * See if this vnode is already in the cache with this name.
- * This can happen with concurrent lookups of the same path
- * name.
+ * See if this vnode or negative entry is already in the cache
+ * with this name. This can happen with concurrent lookups of
+ * the same path name.
*/
- if (vp) {
- TAILQ_FOREACH(n2, &vp->v_cache_dst, nc_dst) {
- if (n2->nc_dvp == dvp &&
- n2->nc_nlen == cnp->cn_namelen &&
- !bcmp(n2->nc_name, cnp->cn_nameptr, n2->nc_nlen)) {
- CACHE_UNLOCK();
- cache_free(ncp);
- return;
- }
- }
- } else {
- TAILQ_FOREACH(n2, &ncneg, nc_dst) {
- if (n2->nc_nlen == cnp->cn_namelen &&
- !bcmp(n2->nc_name, cnp->cn_nameptr, n2->nc_nlen)) {
- CACHE_UNLOCK();
- cache_free(ncp);
- return;
- }
+ ncpp = NCHHASH(hash);
+ LIST_FOREACH(n2, ncpp, nc_hash) {
+ if (n2->nc_dvp == dvp &&
+ n2->nc_nlen == cnp->cn_namelen &&
+ !bcmp(n2->nc_name, cnp->cn_nameptr, n2->nc_nlen)) {
+ CACHE_UNLOCK();
+ cache_free(ncp);
+ return;
}
}
@@ -550,7 +540,6 @@ cache_enter(dvp, vp, cnp)
* Insert the new namecache entry into the appropriate chain
* within the cache entries table.
*/
- ncpp = NCHHASH(hash);
LIST_INSERT_HEAD(ncpp, ncp, nc_hash);
if (LIST_EMPTY(&dvp->v_cache_src)) {
hold = 1;