1 files changed, 14 insertions, 10 deletions

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 3e64b98f3a93..e35c8199f82f 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -799,6 +799,9 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
                 goto out_bad;
         }
 
+        if (nfs_have_delegation(inode, FMODE_READ))
+                goto out_set_verifier;
+
         /* Force a full look up iff the parent directory has changed */
         if (!nfs_is_exclusive_create(dir, nd) && nfs_check_verifier(dir, dentry)) {
                 if (nfs_lookup_verify_inode(inode, nd))
@@ -817,6 +820,7 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
         if ((error = nfs_refresh_inode(inode, &fattr)) != 0)
                 goto out_bad;
 
+out_set_verifier:
         nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
  out_valid:
         dput(parent);
@@ -973,7 +977,7 @@ struct dentry_operations nfs4_dentry_operations = {
  * Use intent information to determine whether we need to substitute
  * the NFSv4-style stateful OPEN for the LOOKUP call
  */
-static int is_atomic_open(struct inode *dir, struct nameidata *nd)
+static int is_atomic_open(struct nameidata *nd)
 {
         if (nd == NULL || nfs_lookup_check_intent(nd, LOOKUP_OPEN) == 0)
                 return 0;
@@ -996,7 +1000,7 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
                         dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
 
         /* Check that we are indeed trying to open this file */
-        if (!is_atomic_open(dir, nd))
+        if (!is_atomic_open(nd))
                 goto no_open;
 
         if (dentry->d_name.len > NFS_SERVER(dir)->namelen) {
@@ -1047,10 +1051,10 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
         struct inode *dir;
         int openflags, ret = 0;
 
+        if (!is_atomic_open(nd))
+                goto no_open;
         parent = dget_parent(dentry);
         dir = parent->d_inode;
-        if (!is_atomic_open(dir, nd))
-                goto no_open;
         /* We can't create new files in nfs_open_revalidate(), so we
          * optimize away revalidation of negative dentries.
          */
@@ -1062,11 +1066,11 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
 
         /* NFS only supports OPEN on regular files */
         if (!S_ISREG(inode->i_mode))
-                goto no_open;
+                goto no_open_dput;
         openflags = nd->intent.open.flags;
         /* We cannot do exclusive creation on a positive dentry */
         if ((openflags & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL))
-                goto no_open;
+                goto no_open_dput;
         /* We can't create new files, or truncate existing ones here */
         openflags &= ~(O_CREAT|O_TRUNC);
 
@@ -1081,10 +1085,9 @@ out:
         if (!ret)
                 d_drop(dentry);
         return ret;
-no_open:
+no_open_dput:
         dput(parent);
-        if (inode != NULL && nfs_have_delegation(inode, FMODE_READ))
-                return 1;
+no_open:
         return nfs_lookup_revalidate(dentry, nd);
 }
 #endif /* CONFIG_NFSV4 */
@@ -1794,7 +1797,8 @@ static int nfs_access_get_cached(struct inode *inode, struct rpc_cred *cred, str
         cache = nfs_access_search_rbtree(inode, cred);
         if (cache == NULL)
                 goto out;
-        if (!time_in_range(jiffies, cache->jiffies, cache->jiffies + nfsi->attrtimeo))
+        if (!nfs_have_delegation(inode, FMODE_READ) &&
+            !time_in_range_open(jiffies, cache->jiffies, cache->jiffies + nfsi->attrtimeo))
                 goto out_stale;
         res->jiffies = cache->jiffies;
         res->cred = cache->cred;