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Commit df031f07 authored by Liu Bo's avatar Liu Bo Committed by Chris Mason
Browse files

Btrfs: use helper for logical resolve 



We already have a helper, iterate_inodes_from_logical(), for logical resolve,
so just use it.

Signed-off-by: default avatarLiu Bo <bo.li.liu@oracle.com>
parent 69917e43

fs/btrfs/ioctl.c

+3 −16
Original line number Diff line number Diff line
@@ -3210,12 +3210,9 @@ static long btrfs_ioctl_logical_to_ino(struct btrfs_root *root, 
{

	int ret = 0;

	int size;

	u64 extent_item_pos;

	u64 flags = 0;

	struct btrfs_ioctl_logical_ino_args *loi;

	struct btrfs_data_container *inodes = NULL;

	struct btrfs_path *path = NULL;

	struct btrfs_key key;



	if (!capable(CAP_SYS_ADMIN))

		return -EPERM;
@@ -3241,23 +3238,13 @@ static long btrfs_ioctl_logical_to_ino(struct btrfs_root *root, 
		goto out;

	}



	ret = extent_from_logical(root->fs_info, loi->logical, path, &key,

				  &flags);

	btrfs_release_path(path);



	if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK)

	ret = iterate_inodes_from_logical(loi->logical, root->fs_info, path,

					  build_ino_list, inodes);

	if (ret == -EINVAL)

		ret = -ENOENT;

	if (ret < 0)

		goto out;



	extent_item_pos = loi->logical - key.objectid;

	ret = iterate_extent_inodes(root->fs_info, key.objectid,

					extent_item_pos, 0, build_ino_list,

					inodes);



	if (ret < 0)

		goto out;



	ret = copy_to_user((void *)(unsigned long)loi->inodes,

			   (void *)(unsigned long)inodes, size);

	if (ret)