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btrfs: kill magical embedded struct superblock

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2011-07-07 15:44:25 -04:00
parent fb408e6ccc
commit 0ee5dc676a
5 changed files with 32 additions and 23 deletions
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15
fs/btrfs/disk-io.c
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@@ -1077,12 +1077,7 @@ static int __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
init_completion(&root->kobj_unregister);
root->defrag_running = 0;
root->root_key.objectid = objectid;
root->anon_super.s_root = NULL;
root->anon_super.s_dev = 0;
INIT_LIST_HEAD(&root->anon_super.s_list);
INIT_LIST_HEAD(&root->anon_super.s_instances);
init_rwsem(&root->anon_super.s_umount);
root->anon_dev = 0;
return 0;
}
@@ -1311,7 +1306,7 @@ again:
spin_lock_init(&root->cache_lock);
init_waitqueue_head(&root->cache_wait);
ret = set_anon_super(&root->anon_super, NULL);
ret = get_anon_bdev(&root->anon_dev);
if (ret)
goto fail;
@@ -2393,10 +2388,8 @@ static void free_fs_root(struct btrfs_root *root)
{
iput(root->cache_inode);
WARN_ON(!RB_EMPTY_ROOT(&root->inode_tree));
if (root->anon_super.s_dev) {
down_write(&root->anon_super.s_umount);
kill_anon_super(&root->anon_super);
}
if (root->anon_dev)
free_anon_bdev(root->anon_dev);
free_extent_buffer(root->node);
free_extent_buffer(root->commit_root);
kfree(root->free_ino_ctl);