Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2008 Red Hat.  All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include "ctree.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include "disk-io.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) int btrfs_insert_orphan_item(struct btrfs_trans_handle *trans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 			     struct btrfs_root *root, u64 offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	struct btrfs_path *path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	struct btrfs_key key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	key.objectid = BTRFS_ORPHAN_OBJECTID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	key.type = BTRFS_ORPHAN_ITEM_KEY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	key.offset = offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	path = btrfs_alloc_path();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	if (!path)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	ret = btrfs_insert_empty_item(trans, root, path, &key, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	btrfs_free_path(path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) int btrfs_del_orphan_item(struct btrfs_trans_handle *trans,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 			  struct btrfs_root *root, u64 offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	struct btrfs_path *path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	struct btrfs_key key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	key.objectid = BTRFS_ORPHAN_OBJECTID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	key.type = BTRFS_ORPHAN_ITEM_KEY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	key.offset = offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	path = btrfs_alloc_path();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	if (!path)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	ret = btrfs_search_slot(trans, root, &key, path, -1, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	if (ret) { /* JDM: Really? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 		ret = -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	ret = btrfs_del_item(trans, root, path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	btrfs_free_path(path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }