NFSv4: Clean up is_atomic_open()

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

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 3e64b98..121b533 100644 (file)
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -973,7 +973,7 @@ 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 +996,7 @@ 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 +1047,10 @@ 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 +1062,11 @@ 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);
 
@@ -1081,8 +1081,9 @@ out:
        if (!ret)
                d_drop(dentry);
        return ret;
-no_open:
+no_open_dput:
        dput(parent);
+no_open:
        if (inode != NULL && nfs_have_delegation(inode, FMODE_READ))
                return 1;
        return nfs_lookup_revalidate(dentry, nd);