sysv: i_nlink races in rename()

[mv-sheeva.git] / fs / sysv / namei.c

diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index b5e68da2db32189597edc9e6f70dd6bcf57dbb40..e474fbcf8bde991924da62e321d2be7eae8ac5f6 100644 (file)
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -48,7 +48,6 @@ static struct dentry *sysv_lookup(struct inode * dir, struct dentry * dentry, st
        struct inode * inode = NULL;
        ino_t ino;
 
-       d_set_d_op(dentry, dir->i_sb->s_root->d_op);
        if (dentry->d_name.len > SYSV_NAMELEN)
                return ERR_PTR(-ENAMETOOLONG);
        ino = sysv_inode_by_name(dentry);
@@ -246,7 +245,6 @@ static int sysv_rename(struct inode * old_dir, struct dentry * old_dentry,
                new_de = sysv_find_entry(new_dentry, &new_page);
                if (!new_de)
                        goto out_dir;
-               inode_inc_link_count(old_inode);
                sysv_set_link(new_de, new_page, old_inode);
                new_inode->i_ctime = CURRENT_TIME_SEC;
                if (dir_de)
@@ -258,18 +256,15 @@ static int sysv_rename(struct inode * old_dir, struct dentry * old_dentry,
                        if (new_dir->i_nlink >= SYSV_SB(new_dir->i_sb)->s_link_max)
                                goto out_dir;
                }
-               inode_inc_link_count(old_inode);
                err = sysv_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);
        }
 
        sysv_delete_entry(old_de, old_page);
-       inode_dec_link_count(old_inode);
+       mark_inode_dirty(old_inode);
 
        if (dir_de) {
                sysv_set_link(dir_de, dir_page, new_dir);