1 files changed, 13 insertions, 24 deletions

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 625d8e5fb39d..3df428816559 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -38,7 +38,6 @@
 #include "delegation.h"
 #include "iostat.h"
 
-#define NFS_PARANOIA 1
 /* #define NFS_DEBUG_VERBOSE 1 */
 
 static int nfs_opendir(struct inode *, struct file *);
@@ -650,12 +649,15 @@ int nfs_fsync_dir(struct file *filp, struct dentry *dentry, int datasync)
  */
 static int nfs_check_verifier(struct inode *dir, struct dentry *dentry)
 {
+	unsigned long verf;
+
 	if (IS_ROOT(dentry))
 		return 1;
-	if ((NFS_I(dir)->cache_validity & NFS_INO_INVALID_ATTR) != 0
-			|| nfs_attribute_timeout(dir))
+	verf = (unsigned long)dentry->d_fsdata;
+	if (nfs_caches_unstable(dir)
+			|| verf != NFS_I(dir)->cache_change_attribute)
 		return 0;
-	return nfs_verify_change_attribute(dir, (unsigned long)dentry->d_fsdata);
+	return 1;
 }
 
 static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
@@ -665,8 +667,7 @@ static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
 
 static void nfs_refresh_verifier(struct dentry * dentry, unsigned long verf)
 {
-	if (time_after(verf, (unsigned long)dentry->d_fsdata))
-		nfs_set_verifier(dentry, verf);
+	nfs_set_verifier(dentry, verf);
 }
 
 /*
@@ -765,6 +766,10 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
 	nfs_inc_stats(dir, NFSIOS_DENTRYREVALIDATE);
 	inode = dentry->d_inode;
 
+	/* Revalidate parent directory attribute cache */
+	if (nfs_revalidate_inode(NFS_SERVER(dir), dir) < 0)
+		goto out_zap_parent;
+
 	if (!inode) {
 		if (nfs_neg_need_reval(dir, dentry, nd))
 			goto out_bad;
@@ -778,10 +783,6 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
 		goto out_bad;
 	}
 
-	/* Revalidate parent directory attribute cache */
-	if (nfs_revalidate_inode(NFS_SERVER(dir), dir) < 0)
-		goto out_zap_parent;
-
 	/* Force a full look up iff the parent directory has changed */
 	if (nfs_check_verifier(dir, dentry)) {
 		if (nfs_lookup_verify_inode(inode, nd))
@@ -1360,11 +1361,6 @@ static int nfs_sillyrename(struct inode *dir, struct dentry *dentry)
 		atomic_read(&dentry->d_count));
 	nfs_inc_stats(dir, NFSIOS_SILLYRENAME);
 
-#ifdef NFS_PARANOIA
-if (!dentry->d_inode)
-printk("NFS: silly-renaming %s/%s, negative dentry??\n",
-dentry->d_parent->d_name.name, dentry->d_name.name);
-#endif
 	/*
 	 * We don't allow a dentry to be silly-renamed twice.
 	 */
@@ -1681,16 +1677,9 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			new_inode = NULL;
 			/* instantiate the replacement target */
 			d_instantiate(new_dentry, NULL);
-		} else if (atomic_read(&new_dentry->d_count) > 1) {
-		/* dentry still busy? */
-#ifdef NFS_PARANOIA
-			printk("nfs_rename: target %s/%s busy, d_count=%d\n",
-			       new_dentry->d_parent->d_name.name,
-			       new_dentry->d_name.name,
-			       atomic_read(&new_dentry->d_count));
-#endif
+		} else if (atomic_read(&new_dentry->d_count) > 1)
+			/* dentry still busy? */
 			goto out;
-		}
 	} else
 		drop_nlink(new_inode);