static int copy_symlink(struct btrfs_root *root, struct btrfs_key *key,
const char *file)
{
- struct btrfs_path *path;
+ struct btrfs_path path;
struct extent_buffer *leaf;
struct btrfs_file_extent_item *extent_item;
struct btrfs_inode_item *inode_item;
}
}
+ btrfs_init_path(&path);
key->type = BTRFS_EXTENT_DATA_KEY;
key->offset = 0;
-
- path = btrfs_alloc_path();
- if (!path)
- return -ENOMEM;
-
- ret = btrfs_search_slot(NULL, root, key, path, 0, 0);
+ ret = btrfs_search_slot(NULL, root, key, &path, 0, 0);
if (ret < 0)
goto out;
- leaf = path->nodes[0];
+ leaf = path.nodes[0];
if (!leaf) {
fprintf(stderr, "Error getting leaf for symlink '%s'\n", file);
ret = -1;
goto out;
}
- extent_item = btrfs_item_ptr(leaf, path->slots[0],
+ extent_item = btrfs_item_ptr(leaf, path.slots[0],
struct btrfs_file_extent_item);
len = btrfs_file_extent_inline_item_len(leaf,
- btrfs_item_nr(path->slots[0]));
+ btrfs_item_nr(path.slots[0]));
if (len >= PATH_MAX) {
fprintf(stderr, "Symlink '%s' target length %d is longer than PATH_MAX\n",
fs_name, len);
key->type = BTRFS_INODE_ITEM_KEY;
key->offset = 0;
- btrfs_release_path(path);
+ btrfs_release_path(&path);
- ret = btrfs_lookup_inode(NULL, root, path, key, 0);
+ ret = btrfs_lookup_inode(NULL, root, &path, key, 0);
if (ret) {
fprintf(stderr, "Failed to lookup inode for '%s'\n", file);
goto out;
}
- inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0],
+ inode_item = btrfs_item_ptr(path.nodes[0], path.slots[0],
struct btrfs_inode_item);
- ret = fchownat(-1, file, btrfs_inode_uid(path->nodes[0], inode_item),
- btrfs_inode_gid(path->nodes[0], inode_item),
+ ret = fchownat(-1, file, btrfs_inode_uid(path.nodes[0], inode_item),
+ btrfs_inode_gid(path.nodes[0], inode_item),
AT_SYMLINK_NOFOLLOW);
if (ret) {
fprintf(stderr, "Failed to change owner: %s\n",
}
bts = btrfs_inode_atime(inode_item);
- times[0].tv_sec = btrfs_timespec_sec(path->nodes[0], bts);
- times[0].tv_nsec = btrfs_timespec_nsec(path->nodes[0], bts);
+ times[0].tv_sec = btrfs_timespec_sec(path.nodes[0], bts);
+ times[0].tv_nsec = btrfs_timespec_nsec(path.nodes[0], bts);
bts = btrfs_inode_mtime(inode_item);
- times[1].tv_sec = btrfs_timespec_sec(path->nodes[0], bts);
- times[1].tv_nsec = btrfs_timespec_nsec(path->nodes[0], bts);
+ times[1].tv_sec = btrfs_timespec_sec(path.nodes[0], bts);
+ times[1].tv_nsec = btrfs_timespec_nsec(path.nodes[0], bts);
ret = utimensat(-1, file, times, AT_SYMLINK_NOFOLLOW);
if (ret)
fprintf(stderr, "Failed to set times: %s\n", strerror(errno));
out:
- btrfs_free_path(path);
+ btrfs_release_path(&path);
return ret;
}
const char *output_rootdir, const char *in_dir,
const regex_t *mreg)
{
- struct btrfs_path *path;
+ struct btrfs_path path;
struct extent_buffer *leaf;
struct btrfs_dir_item *dir_item;
struct btrfs_key found_key, location;
int loops = 0;
u8 type;
- path = btrfs_alloc_path();
- if (!path) {
- fprintf(stderr, "Ran out of memory\n");
- return -ENOMEM;
- }
-
+ btrfs_init_path(&path);
key->offset = 0;
key->type = BTRFS_DIR_INDEX_KEY;
-
- ret = btrfs_search_slot(NULL, root, key, path, 0, 0);
+ ret = btrfs_search_slot(NULL, root, key, &path, 0, 0);
if (ret < 0) {
fprintf(stderr, "Error searching %d\n", ret);
goto out;
ret = 0;
- leaf = path->nodes[0];
+ leaf = path.nodes[0];
while (!leaf) {
if (verbose > 1)
printf("No leaf after search, looking for the next "
"leaf\n");
- ret = next_leaf(root, path);
+ ret = next_leaf(root, &path);
if (ret < 0) {
fprintf(stderr, "Error getting next leaf %d\n",
ret);
ret = 0;
goto out;
}
- leaf = path->nodes[0];
+ leaf = path.nodes[0];
}
while (leaf) {
break;
}
- if (path->slots[0] >= btrfs_header_nritems(leaf)) {
+ if (path.slots[0] >= btrfs_header_nritems(leaf)) {
do {
- ret = next_leaf(root, path);
+ ret = next_leaf(root, &path);
if (ret < 0) {
fprintf(stderr, "Error searching %d\n",
ret);
ret = 0;
goto out;
}
- leaf = path->nodes[0];
+ leaf = path.nodes[0];
} while (!leaf);
continue;
}
- btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
+ btrfs_item_key_to_cpu(leaf, &found_key, path.slots[0]);
if (found_key.objectid != key->objectid) {
if (verbose > 1)
printf("Found objectid=%Lu, key=%Lu\n",
found_key.type, key->type);
break;
}
- dir_item = btrfs_item_ptr(leaf, path->slots[0],
+ dir_item = btrfs_item_ptr(leaf, path.slots[0],
struct btrfs_dir_item);
name_ptr = (unsigned long)(dir_item + 1);
name_len = btrfs_dir_name_len(leaf, dir_item);
if (ret < 0) {
if (ignore_errors)
goto next;
- btrfs_free_path(path);
+ btrfs_release_path(&path);
return ret;
}
}
next:
- path->slots[0]++;
+ path.slots[0]++;
}
if (restore_metadata) {
if (verbose)
printf("Done searching %s\n", in_dir);
out:
- btrfs_free_path(path);
+ btrfs_release_path(&path);
return ret;
}
struct btrfs_key key;
struct btrfs_key found_key;
struct btrfs_disk_key disk_key;
- struct btrfs_path *path;
+ struct btrfs_path path;
struct extent_buffer *leaf;
struct btrfs_root_item ri;
unsigned long offset;
int ret;
root = root->fs_info->tree_root;
- path = btrfs_alloc_path();
- if (!path) {
- fprintf(stderr, "Failed to alloc path\n");
- return -ENOMEM;
- }
+ btrfs_init_path(&path);
key.offset = 0;
key.objectid = 0;
key.type = BTRFS_ROOT_ITEM_KEY;
-
- ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
+ ret = btrfs_search_slot(NULL, root, &key, &path, 0, 0);
if (ret < 0) {
fprintf(stderr, "Failed to do search %d\n", ret);
- btrfs_free_path(path);
+ btrfs_release_path(&path);
return -1;
}
- leaf = path->nodes[0];
+ leaf = path.nodes[0];
while (1) {
- slot = path->slots[0];
+ slot = path.slots[0];
if (slot >= btrfs_header_nritems(leaf)) {
- ret = btrfs_next_leaf(root, path);
+ ret = btrfs_next_leaf(root, &path);
if (ret)
break;
- leaf = path->nodes[0];
- slot = path->slots[0];
+ leaf = path.nodes[0];
+ slot = path.slots[0];
}
btrfs_item_key(leaf, &disk_key, slot);
btrfs_disk_key_to_cpu(&found_key, &disk_key);
if (found_key.type != BTRFS_ROOT_ITEM_KEY) {
- path->slots[0]++;
+ path.slots[0]++;
continue;
}
btrfs_print_key(&disk_key);
printf(" %Lu level %d\n", btrfs_root_bytenr(&ri),
btrfs_root_level(&ri));
- path->slots[0]++;
+ path.slots[0]++;
}
- btrfs_free_path(path);
+ btrfs_release_path(&path);
return 0;
}
static int find_first_dir(struct btrfs_root *root, u64 *objectid)
{
- struct btrfs_path *path;
+ struct btrfs_path path;
struct btrfs_key found_key;
struct btrfs_key key;
int ret = -1;
int i;
+ btrfs_init_path(&path);
key.objectid = 0;
key.type = BTRFS_DIR_INDEX_KEY;
key.offset = 0;
-
- path = btrfs_alloc_path();
- if (!path) {
- fprintf(stderr, "Ran out of memory\n");
- return ret;
- }
-
- ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
+ ret = btrfs_search_slot(NULL, root, &key, &path, 0, 0);
if (ret < 0) {
fprintf(stderr, "Error searching %d\n", ret);
goto out;
}
- if (!path->nodes[0]) {
+ if (!path.nodes[0]) {
fprintf(stderr, "No leaf!\n");
goto out;
}
again:
- for (i = path->slots[0];
- i < btrfs_header_nritems(path->nodes[0]); i++) {
- btrfs_item_key_to_cpu(path->nodes[0], &found_key, i);
+ for (i = path.slots[0];
+ i < btrfs_header_nritems(path.nodes[0]); i++) {
+ btrfs_item_key_to_cpu(path.nodes[0], &found_key, i);
if (found_key.type != key.type)
continue;
goto out;
}
do {
- ret = next_leaf(root, path);
+ ret = next_leaf(root, &path);
if (ret < 0) {
fprintf(stderr, "Error getting next leaf %d\n",
ret);
fprintf(stderr, "No more leaves\n");
goto out;
}
- } while (!path->nodes[0]);
- if (path->nodes[0])
+ } while (!path.nodes[0]);
+ if (path.nodes[0])
goto again;
printf("Couldn't find a dir index item\n");
out:
- btrfs_free_path(path);
+ btrfs_release_path(&path);
return ret;
}