Index: trunk/server/common/patches/openafs-d_drop.patch
===================================================================
--- trunk/server/common/patches/openafs-d_drop.patch	(revision 2504)
+++ trunk/server/common/patches/openafs-d_drop.patch	(revision 2504)
@@ -0,0 +1,18 @@
+diff --git a/src/afs/LINUX/osi_vnodeops.c b/src/afs/LINUX/osi_vnodeops.c
+index fa0ad91..6059add 100644
+--- a/src/afs/LINUX/osi_vnodeops.c
++++ b/src/afs/LINUX/osi_vnodeops.c
+@@ -1198,10 +1198,9 @@ afs_linux_dentry_revalidate(struct dentry *dp, int flags)
+     if (credp)
+ 	crfree(credp);
+ 
+-    if (!valid) {
+-	shrink_dcache_parent(dp);
+-	d_drop(dp);
+-    }
++    if (!valid)
++	d_invalidate(dp);
++
+     return valid;
+ 
+   bad_dentry: