NFS: Handle -ENOENT errors in unlink()/rmdir()/rename()

If the server returns an ENOENT error, we still need to do a d_delete() in
order to ensure that the dentry is deleted.

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

1 files changed, 13 insertions, 2 deletions

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index d9abdb1d6a2a..06f26d40b4fe 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1267,6 +1267,12 @@ out_err:
         return error;
 }
 
+static void nfs_dentry_handle_enoent(struct dentry *dentry)
+{
+        if (dentry->d_inode != NULL && !d_unhashed(dentry))
+                d_delete(dentry);
+}
+
 static int nfs_rmdir(struct inode *dir, struct dentry *dentry)
 {
         int error;
@@ -1279,6 +1285,8 @@ static int nfs_rmdir(struct inode *dir, struct dentry *dentry)
         /* Ensure the VFS deletes this inode */
         if (error == 0 && dentry->d_inode != NULL)
                 clear_nlink(dentry->d_inode);
+        else if (error == -ENOENT)
+                nfs_dentry_handle_enoent(dentry);
         unlock_kernel();
 
         return error;
@@ -1385,6 +1393,8 @@ static int nfs_safe_remove(struct dentry *dentry)
                 nfs_mark_for_revalidate(inode);
         } else
                 error = NFS_PROTO(dir)->remove(dir, &dentry->d_name);
+        if (error == -ENOENT)
+                nfs_dentry_handle_enoent(dentry);
 out:
         return error;
 }
@@ -1421,7 +1431,7 @@ static int nfs_unlink(struct inode *dir, struct dentry *dentry)
         spin_unlock(&dentry->d_lock);
         spin_unlock(&dcache_lock);
         error = nfs_safe_remove(dentry);
-        if (!error) {
+        if (!error || error == -ENOENT) {
                 nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
         } else if (need_rehash)
                 d_rehash(dentry);
@@ -1634,7 +1644,8 @@ out:
                 d_move(old_dentry, new_dentry);
                 nfs_set_verifier(new_dentry,
                                         nfs_save_change_attribute(new_dir));
-        }
+        } else if (error == -ENOENT)
+                nfs_dentry_handle_enoent(old_dentry);
 
         /* new dentry created? */
         if (dentry)