ext2: Fix link count corruption under heavy link+rename load

[sfrench/cifs-2.6.git] / fs / ext2 / namei.c

diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index 2e1d8341d827b173b44b4f034106a7db7f2be8da..adb91855ccd092c86f220161c922873bee7fce0c 100644 (file)
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -344,7 +344,6 @@ static int ext2_rename (struct inode * old_dir, struct dentry * old_dentry,
                new_de = ext2_find_entry (new_dir, &new_dentry->d_name, &new_page);
                if (!new_de)
                        goto out_dir;
-               inode_inc_link_count(old_inode);
                ext2_set_link(new_dir, new_de, new_page, old_inode, 1);
                new_inode->i_ctime = CURRENT_TIME_SEC;
                if (dir_de)
@@ -356,12 +355,9 @@ static int ext2_rename (struct inode * old_dir, struct dentry * old_dentry,
                        if (new_dir->i_nlink >= EXT2_LINK_MAX)
                                goto out_dir;
                }
-               inode_inc_link_count(old_inode);
                err = ext2_add_link(new_dentry, old_inode);
-               if (err) {
-                       inode_dec_link_count(old_inode);
+               if (err)
                        goto out_dir;
-               }
                if (dir_de)
                        inode_inc_link_count(new_dir);
        }
@@ -369,12 +365,11 @@ static int ext2_rename (struct inode * old_dir, struct dentry * old_dentry,
        /*
         * Like most other Unix systems, set the ctime for inodes on a
         * rename.
-        * inode_dec_link_count() will mark the inode dirty.
         */
        old_inode->i_ctime = CURRENT_TIME_SEC;
+       mark_inode_dirty(old_inode);
 
        ext2_delete_entry (old_de, old_page);
-       inode_dec_link_count(old_inode);
 
        if (dir_de) {
                if (old_dir != new_dir)