ext4: call ext4_handle_dirty_metadata with correct inode in ext4_dx_add_entry
Theodore Ts'o [Wed, 31 Aug 2011 16:02:51 +0000 (12:02 -0400)]
commit 5930ea643805feb50a2f8383ae12eb6f10935e49 upstream.

ext4_dx_add_entry manipulates bh2 and frames[0].bh, which are two buffer_heads
that point to directory blocks assigned to the directory inode.  However, the
function calls ext4_handle_dirty_metadata with the inode of the file that's
being added to the directory, not the directory inode itself.  Therefore,
correct the code to dirty the directory buffers with the directory inode, not
the file inode.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

fs/ext4/namei.c

index 6e7779c..50c7294 100644 (file)
@@ -1586,7 +1586,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
                        dxtrace(dx_show_index("node", frames[1].entries));
                        dxtrace(dx_show_index("node",
                               ((struct dx_node *) bh2->b_data)->entries));
-                       err = ext4_handle_dirty_metadata(handle, inode, bh2);
+                       err = ext4_handle_dirty_metadata(handle, dir, bh2);
                        if (err)
                                goto journal_error;
                        brelse (bh2);
@@ -1612,7 +1612,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct dentry *dentry,
                        if (err)
                                goto journal_error;
                }
-               err = ext4_handle_dirty_metadata(handle, inode, frames[0].bh);
+               err = ext4_handle_dirty_metadata(handle, dir, frames[0].bh);
                if (err) {
                        ext4_std_error(inode->i_sb, err);
                        goto cleanup;