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btrfs-progs: check: use on-stack path buffer in recow_extent_buffer

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We don't need to conserve stack space too much unlike kernel, also
remove one error condition.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2016-11-03 00:37:51 +01:00
parent d0c3fa4d5b
commit 29bfb8318b
1 changed files with 7 additions and 12 deletions
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19
cmds-check.c
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@ -10471,7 +10471,7 @@ static int reinit_extent_tree(struct btrfs_trans_handle *trans,
static int recow_extent_buffer(struct btrfs_root *root, struct extent_buffer *eb)
{
struct btrfs_path *path;
struct btrfs_path path;
struct btrfs_trans_handle *trans;
struct btrfs_key key;
int ret;
@ -10488,25 +10488,20 @@ static int recow_extent_buffer(struct btrfs_root *root, struct extent_buffer *eb
return PTR_ERR(root);
}
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
trans = btrfs_start_transaction(root, 1);
if (IS_ERR(trans)) {
btrfs_free_path(path);
if (IS_ERR(trans))
return PTR_ERR(trans);
}
path->lowest_level = btrfs_header_level(eb);
if (path->lowest_level)
btrfs_init_path(&path);
path.lowest_level = btrfs_header_level(eb);
if (path.lowest_level)
btrfs_node_key_to_cpu(eb, &key, 0);
else
btrfs_item_key_to_cpu(eb, &key, 0);
ret = btrfs_search_slot(trans, root, &key, path, 0, 1);
ret = btrfs_search_slot(trans, root, &key, &path, 0, 1);
btrfs_commit_transaction(trans, root);
btrfs_free_path(path);
btrfs_release_path(&path);
return ret;
}