1 // SPDX-License-Identifier: GPL-2.0+
3  * BTRFS filesystem implementation for U-Boot
15 static int readdir_callback(const struct btrfs_root *root,  in readdir_callback()  argument
34 	if (btrfs_lookup_inode(root, &item->location, &inode, NULL)) {  in readdir_callback()
36 		       __func__, item->name_len, name);  in readdir_callback()
43 	if (item->type == BTRFS_FT_SYMLINK) {  in readdir_callback()
47 		if (target && btrfs_readlink(root, item->location.objectid,  in readdir_callback()
57 	printf("<%s> ", typestr[item->type]);  in readdir_callback()
58 	if (item->type == BTRFS_FT_CHRDEV || item->type == BTRFS_FT_BLKDEV)  in readdir_callback()
64 	printf("%24.24s  %.*s", filetime, item->name_len, name);  in readdir_callback()
66 	if (item->type == BTRFS_FT_SYMLINK) {  in readdir_callback()
67 		printf(" -> %s", target ? target : "?");  in readdir_callback()
86 		return -1;  in btrfs_probe()
90 		return -1;  in btrfs_probe()
94 	btrfs_info.tree_root.bytenr = btrfs_info.sb.root;  in btrfs_probe()
100 		return -1;  in btrfs_probe()
106 		return -1;  in btrfs_probe()
114 	struct btrfs_root root = btrfs_info.fs_root;  in btrfs_ls()  local
118 	inr = btrfs_lookup_path(&root, root.root_dirid, path, &type, NULL, 40);  in btrfs_ls()
120 	if (inr == -1ULL) {  in btrfs_ls()
130 	if (btrfs_readdir(&root, inr, readdir_callback)) {  in btrfs_ls()
140 	struct btrfs_root root = btrfs_info.fs_root;  in btrfs_exists()  local
144 	inr = btrfs_lookup_path(&root, root.root_dirid, file, &type, NULL, 40);  in btrfs_exists()
146 	return (inr != -1ULL && type == BTRFS_FT_REG_FILE);  in btrfs_exists()
151 	struct btrfs_root root = btrfs_info.fs_root;  in btrfs_size()  local
156 	inr = btrfs_lookup_path(&root, root.root_dirid, file, &type, &inode,  in btrfs_size()
159 	if (inr == -1ULL) {  in btrfs_size()
176 	struct btrfs_root root = btrfs_info.fs_root;  in btrfs_read()  local
181 	inr = btrfs_lookup_path(&root, root.root_dirid, file, &type, &inode,  in btrfs_read()
184 	if (inr == -1ULL) {  in btrfs_read()
197 	if (len > inode.size - offset)  in btrfs_read()
198 		len = inode.size - offset;  in btrfs_read()
200 	rd = btrfs_file_read(&root, inr, offset, len, buf);  in btrfs_read()
201 	if (rd == -1ULL) {  in btrfs_read()
221 	return -ENOSYS;  in btrfs_uuid()