NFS: remove a no-longer-needed error check in nfs_symlink()

In the early days of NFS, there was no duplicate reply cache on the server.
Thus retransmitted non-idempotent requests often found that the request had
already completed on the server.  To avoid passing an unanticipated return
code to unsuspecting applications, NFS clients would often shunt error
codes that implied the request had been retried but already completed.

Thanks to NFS over TCP, duplicate reply caches on the server, and network
performance and reliability improvements, it is safe to remove such checks.

Test plan:
None.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 9b496ef4abe..084e8cb41c8 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1476,14 +1476,10 @@ dentry->d_parent->d_name.name, dentry->d_name.name);
         error = NFS_PROTO(dir)->symlink(dir, &dentry->d_name, &qsymname,
                                           &attr, &sym_fh, &sym_attr);
         nfs_end_data_update(dir);
-        if (!error) {
+        if (!error)
                 error = nfs_instantiate(dentry, &sym_fh, &sym_attr);
-        } else {
-                if (error == -EEXIST)
-                        printk("nfs_proc_symlink: %s/%s already exists??\n",
-                               dentry->d_parent->d_name.name, dentry->d_name.name);
+        else
                 d_drop(dentry);
-        }
         unlock_kernel();
         return error;
 }