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fix leak in btrfs_drop_snapshot

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2007-03-12 09:03:27 -04:00 committed by David Woodhouse
parent 20524f0226
commit 83e15a28e0
2 changed files with 8 additions and 5 deletions
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2
fs/btrfs/disk-io.c
View File

@ -167,7 +167,7 @@ int commit_transaction(struct ctree_root *root, struct ctree_super_block *s)
root->node->count++;
ret = btrfs_drop_snapshot(root, snap);
BUG_ON(ret);
tree_block_release(root, snap);
// tree_block_release(root, snap);
}
write_ctree_super(root, s);
btrfs_finish_extent_commit(root);

11
fs/btrfs/extent-tree.c
View File

@ -441,15 +441,15 @@ int walk_down_tree(struct ctree_root *root, struct ctree_path *path, int *level)
}
BUG_ON(ret);
next = read_tree_block(root, blocknr);
if (path->nodes[*level-1]) {
if (path->nodes[*level-1])
tree_block_release(root, path->nodes[*level-1]);
}
path->nodes[*level-1] = next;
*level = node_level(next->node.header.flags);
path->slots[*level] = 0;
}
out:
ret = free_extent(root, path->nodes[*level]->blocknr, 1);
tree_block_release(root, path->nodes[*level]);
path->nodes[*level] = NULL;
*level += 1;
BUG_ON(ret);
@ -470,6 +470,8 @@ int walk_up_tree(struct ctree_root *root, struct ctree_path *path, int *level)
} else {
ret = free_extent(root,
path->nodes[*level]->blocknr, 1);
tree_block_release(root, path->nodes[*level]);
path->nodes[*level] = NULL;
*level = i + 1;
BUG_ON(ret);
}
@ -499,9 +501,10 @@ int btrfs_drop_snapshot(struct ctree_root *root, struct tree_buffer *snap)
if (ret > 0)
break;
}
for (i = 0; i < orig_level; i++) {
if (path.nodes[i])
for (i = 0; i <= orig_level; i++) {
if (path.nodes[i]) {
tree_block_release(root, path.nodes[i]);
}
}
return 0;