NFSv4: Fix nfs_atomic_open() to set the verifier on negative dentries too

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

3 files changed, 11 insertions, 9 deletions

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 41b063c98822..82878a19538d 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -656,11 +656,6 @@ static int nfs_check_verifier(struct inode *dir, struct dentry *dentry)
         return 1;
 }
 
-static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
-{
-        dentry->d_time = verf;
-}
-
 /*
  * Return the intent data that applies to this particular path component
  *
@@ -1016,7 +1011,6 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
                 }
         } else if (res != NULL)
                 dentry = res;
-        nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
 out:
         return res;
 no_open:
@@ -1060,8 +1054,6 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
          */
         lock_kernel();
         ret = nfs4_open_revalidate(dir, dentry, openflags, nd);
-        if (ret == 1)
-                nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
         unlock_kernel();
 out:
         dput(parent);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 0748c700301d..52af5a7d679e 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1399,13 +1399,16 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
         state = nfs4_do_open(dir, &path, nd->intent.open.flags, &attr, cred);
         put_rpccred(cred);
         if (IS_ERR(state)) {
-                if (PTR_ERR(state) == -ENOENT)
+                if (PTR_ERR(state) == -ENOENT) {
                         d_add(dentry, NULL);
+                        nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
+                }
                 return (struct dentry *)state;
         }
         res = d_add_unique(dentry, igrab(state->inode));
         if (res != NULL)
                 path.dentry = res;
+        nfs_set_verifier(path.dentry, nfs_save_change_attribute(dir));
         nfs4_intent_set_file(nd, &path, state);
         return res;
 }
@@ -1439,6 +1442,7 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, st
                 }
         }
         if (state->inode == dentry->d_inode) {
+                nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
                 nfs4_intent_set_file(nd, &path, state);
                 return 1;
         }
@@ -1885,6 +1889,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
                 goto out;
         }
         d_add(dentry, igrab(state->inode));
+        nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
         if (flags & O_EXCL) {
                 struct nfs_fattr fattr;
                 status = nfs4_do_setattr(state->inode, &fattr, sattr, state);
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 8f632bd854af..992931cd301e 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -240,6 +240,11 @@ static inline int NFS_USE_READDIRPLUS(struct inode *inode)
         return test_bit(NFS_INO_ADVISE_RDPLUS, &NFS_FLAGS(inode));
 }
 
+static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
+{
+        dentry->d_time = verf;
+}
+
 /**
  * nfs_save_change_attribute - Returns the inode attribute change cookie
  * @dir - pointer to parent directory inode