nfs_lookup: don't bother with d_instantiate(dentry, NULL)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 9cce670..4bfa7d8 100644 (file)
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1360,19 +1360,15 @@ struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, unsigned in
        dfprintk(VFS, "NFS: lookup(%pd2)\n", dentry);
        nfs_inc_stats(dir, NFSIOS_VFSLOOKUP);
 
-       res = ERR_PTR(-ENAMETOOLONG);
-       if (dentry->d_name.len > NFS_SERVER(dir)->namelen)
-               goto out;
+       if (unlikely(dentry->d_name.len > NFS_SERVER(dir)->namelen))
+               return ERR_PTR(-ENAMETOOLONG);
 
        /*
         * If we're doing an exclusive create, optimize away the lookup
         * but don't hash the dentry.
         */
-       if (nfs_is_exclusive_create(dir, flags)) {
-               d_instantiate(dentry, NULL);
-               res = NULL;
-               goto out;
-       }
+       if (nfs_is_exclusive_create(dir, flags))
+               return NULL;
 
        res = ERR_PTR(-ENOMEM);
        fhandle = nfs_alloc_fhandle();