struct posix_acl *acl)
{
struct bch_fs *c = trans->c;
- struct btree_iter *dir_iter;
+ struct btree_iter *dir_iter = NULL;
+ struct btree_iter *inode_iter = NULL;
struct bch_hash_info hash = bch2_hash_info_init(c, new_inode);
- u64 now = bch2_current_time(trans->c);
+ u64 now = bch2_current_time(c);
+ u64 dir_offset = 0;
int ret;
dir_iter = bch2_inode_peek(trans, dir_u, dir_inum, BTREE_ITER_INTENT);
- if (IS_ERR(dir_iter))
- return PTR_ERR(dir_iter);
+ ret = PTR_ERR_OR_ZERO(dir_iter);
+ if (ret)
+ goto err;
bch2_inode_init_late(new_inode, now, uid, gid, mode, rdev, dir_u);
if (!name)
new_inode->bi_flags |= BCH_INODE_UNLINKED;
- ret = bch2_inode_create(trans, new_inode,
- BLOCKDEV_INODE_MAX, 0,
- &c->unused_inode_hint);
+ inode_iter = bch2_inode_create(trans, new_inode, U32_MAX);
+ ret = PTR_ERR_OR_ZERO(inode_iter);
if (ret)
- return ret;
+ goto err;
if (default_acl) {
ret = bch2_set_acl_trans(trans, new_inode, &hash,
default_acl, ACL_TYPE_DEFAULT);
if (ret)
- return ret;
+ goto err;
}
if (acl) {
ret = bch2_set_acl_trans(trans, new_inode, &hash,
acl, ACL_TYPE_ACCESS);
if (ret)
- return ret;
+ goto err;
}
if (name) {
ret = bch2_inode_write(trans, dir_iter, dir_u);
if (ret)
- return ret;
+ goto err;
ret = bch2_dirent_create(trans, dir_inum, &dir_hash,
mode_to_type(new_inode->bi_mode),
name, new_inode->bi_inum,
+ &dir_offset,
BCH_HASH_SET_MUST_CREATE);
if (ret)
- return ret;
+ goto err;
+ }
+
+ if (c->sb.version >= bcachefs_metadata_version_inode_backpointers) {
+ new_inode->bi_dir = dir_u->bi_inum;
+ new_inode->bi_dir_offset = dir_offset;
}
- return 0;
+ /* XXX use bch2_btree_iter_set_snapshot() */
+ inode_iter->snapshot = U32_MAX;
+ bch2_btree_iter_set_pos(inode_iter, SPOS(0, new_inode->bi_inum, U32_MAX));
+
+ ret = bch2_inode_write(trans, inode_iter, new_inode);
+err:
+ bch2_trans_iter_put(trans, inode_iter);
+ bch2_trans_iter_put(trans, dir_iter);
+ return ret;
}
int bch2_link_trans(struct btree_trans *trans, u64 dir_inum,
u64 inum, struct bch_inode_unpacked *dir_u,
struct bch_inode_unpacked *inode_u, const struct qstr *name)
{
- struct btree_iter *dir_iter, *inode_iter;
+ struct bch_fs *c = trans->c;
+ struct btree_iter *dir_iter = NULL, *inode_iter = NULL;
struct bch_hash_info dir_hash;
- u64 now = bch2_current_time(trans->c);
+ u64 now = bch2_current_time(c);
+ u64 dir_offset = 0;
+ int ret;
inode_iter = bch2_inode_peek(trans, inode_u, inum, BTREE_ITER_INTENT);
- if (IS_ERR(inode_iter))
- return PTR_ERR(inode_iter);
+ ret = PTR_ERR_OR_ZERO(inode_iter);
+ if (ret)
+ goto err;
inode_u->bi_ctime = now;
bch2_inode_nlink_inc(inode_u);
+ inode_u->bi_flags |= BCH_INODE_BACKPTR_UNTRUSTED;
+
dir_iter = bch2_inode_peek(trans, dir_u, dir_inum, 0);
- if (IS_ERR(dir_iter))
- return PTR_ERR(dir_iter);
+ ret = PTR_ERR_OR_ZERO(dir_iter);
+ if (ret)
+ goto err;
dir_u->bi_mtime = dir_u->bi_ctime = now;
- dir_hash = bch2_hash_info_init(trans->c, dir_u);
- bch2_trans_iter_put(trans, dir_iter);
+ dir_hash = bch2_hash_info_init(c, dir_u);
- return bch2_dirent_create(trans, dir_inum, &dir_hash,
- mode_to_type(inode_u->bi_mode),
- name, inum, BCH_HASH_SET_MUST_CREATE) ?:
- bch2_inode_write(trans, dir_iter, dir_u) ?:
+ ret = bch2_dirent_create(trans, dir_inum, &dir_hash,
+ mode_to_type(inode_u->bi_mode),
+ name, inum, &dir_offset,
+ BCH_HASH_SET_MUST_CREATE);
+ if (ret)
+ goto err;
+
+ if (c->sb.version >= bcachefs_metadata_version_inode_backpointers) {
+ inode_u->bi_dir = dir_inum;
+ inode_u->bi_dir_offset = dir_offset;
+ }
+
+ ret = bch2_inode_write(trans, dir_iter, dir_u) ?:
bch2_inode_write(trans, inode_iter, inode_u);
+err:
+ bch2_trans_iter_put(trans, dir_iter);
+ bch2_trans_iter_put(trans, inode_iter);
+ return ret;
}
int bch2_unlink_trans(struct btree_trans *trans,
struct bch_inode_unpacked *inode_u,
const struct qstr *name)
{
- struct btree_iter *dir_iter, *dirent_iter, *inode_iter;
+ struct bch_fs *c = trans->c;
+ struct btree_iter *dir_iter = NULL, *dirent_iter = NULL,
+ *inode_iter = NULL;
struct bch_hash_info dir_hash;
- u64 inum, now = bch2_current_time(trans->c);
+ u64 inum, now = bch2_current_time(c);
struct bkey_s_c k;
+ int ret;
dir_iter = bch2_inode_peek(trans, dir_u, dir_inum, BTREE_ITER_INTENT);
- if (IS_ERR(dir_iter))
- return PTR_ERR(dir_iter);
+ ret = PTR_ERR_OR_ZERO(dir_iter);
+ if (ret)
+ goto err;
- dir_hash = bch2_hash_info_init(trans->c, dir_u);
+ dir_hash = bch2_hash_info_init(c, dir_u);
dirent_iter = __bch2_dirent_lookup_trans(trans, dir_inum, &dir_hash,
name, BTREE_ITER_INTENT);
- if (IS_ERR(dirent_iter))
- return PTR_ERR(dirent_iter);
+ ret = PTR_ERR_OR_ZERO(dirent_iter);
+ if (ret)
+ goto err;
k = bch2_btree_iter_peek_slot(dirent_iter);
inum = le64_to_cpu(bkey_s_c_to_dirent(k).v->d_inum);
inode_iter = bch2_inode_peek(trans, inode_u, inum, BTREE_ITER_INTENT);
- if (IS_ERR(inode_iter))
- return PTR_ERR(inode_iter);
+ ret = PTR_ERR_OR_ZERO(inode_iter);
+ if (ret)
+ goto err;
dir_u->bi_mtime = dir_u->bi_ctime = inode_u->bi_ctime = now;
dir_u->bi_nlink -= S_ISDIR(inode_u->bi_mode);
bch2_inode_nlink_dec(inode_u);
- return (S_ISDIR(inode_u->bi_mode)
+ ret = (S_ISDIR(inode_u->bi_mode)
? bch2_empty_dir_trans(trans, inum)
: 0) ?:
bch2_dirent_delete_at(trans, &dir_hash, dirent_iter) ?:
bch2_inode_write(trans, dir_iter, dir_u) ?:
bch2_inode_write(trans, inode_iter, inode_u);
+err:
+ bch2_trans_iter_put(trans, inode_iter);
+ bch2_trans_iter_put(trans, dirent_iter);
+ bch2_trans_iter_put(trans, dir_iter);
+ return ret;
}
bool bch2_reinherit_attrs(struct bch_inode_unpacked *dst_u,
const struct qstr *dst_name,
enum bch_rename_mode mode)
{
- struct btree_iter *src_dir_iter, *dst_dir_iter = NULL;
- struct btree_iter *src_inode_iter, *dst_inode_iter = NULL;
+ struct bch_fs *c = trans->c;
+ struct btree_iter *src_dir_iter = NULL, *dst_dir_iter = NULL;
+ struct btree_iter *src_inode_iter = NULL, *dst_inode_iter = NULL;
struct bch_hash_info src_hash, dst_hash;
- u64 src_inode, dst_inode, now = bch2_current_time(trans->c);
+ u64 src_inode, src_offset, dst_inode, dst_offset;
+ u64 now = bch2_current_time(c);
int ret;
src_dir_iter = bch2_inode_peek(trans, src_dir_u, src_dir,
BTREE_ITER_INTENT);
- if (IS_ERR(src_dir_iter))
- return PTR_ERR(src_dir_iter);
+ ret = PTR_ERR_OR_ZERO(src_dir_iter);
+ if (ret)
+ goto err;
- src_hash = bch2_hash_info_init(trans->c, src_dir_u);
+ src_hash = bch2_hash_info_init(c, src_dir_u);
if (dst_dir != src_dir) {
dst_dir_iter = bch2_inode_peek(trans, dst_dir_u, dst_dir,
BTREE_ITER_INTENT);
- if (IS_ERR(dst_dir_iter))
- return PTR_ERR(dst_dir_iter);
+ ret = PTR_ERR_OR_ZERO(dst_dir_iter);
+ if (ret)
+ goto err;
- dst_hash = bch2_hash_info_init(trans->c, dst_dir_u);
+ dst_hash = bch2_hash_info_init(c, dst_dir_u);
} else {
dst_dir_u = src_dir_u;
dst_hash = src_hash;
ret = bch2_dirent_rename(trans,
src_dir, &src_hash,
dst_dir, &dst_hash,
- src_name, &src_inode,
- dst_name, &dst_inode,
+ src_name, &src_inode, &src_offset,
+ dst_name, &dst_inode, &dst_offset,
mode);
if (ret)
- return ret;
+ goto err;
src_inode_iter = bch2_inode_peek(trans, src_inode_u, src_inode,
BTREE_ITER_INTENT);
- if (IS_ERR(src_inode_iter))
- return PTR_ERR(src_inode_iter);
+ ret = PTR_ERR_OR_ZERO(src_inode_iter);
+ if (ret)
+ goto err;
if (dst_inode) {
dst_inode_iter = bch2_inode_peek(trans, dst_inode_u, dst_inode,
BTREE_ITER_INTENT);
- if (IS_ERR(dst_inode_iter))
- return PTR_ERR(dst_inode_iter);
+ ret = PTR_ERR_OR_ZERO(dst_inode_iter);
+ if (ret)
+ goto err;
+ }
+
+ if (c->sb.version >= bcachefs_metadata_version_inode_backpointers) {
+ src_inode_u->bi_dir = dst_dir_u->bi_inum;
+ src_inode_u->bi_dir_offset = dst_offset;
+
+ if (mode == BCH_RENAME_EXCHANGE) {
+ dst_inode_u->bi_dir = src_dir_u->bi_inum;
+ dst_inode_u->bi_dir_offset = src_offset;
+ }
}
if (mode == BCH_RENAME_OVERWRITE) {
if (S_ISDIR(src_inode_u->bi_mode) !=
- S_ISDIR(dst_inode_u->bi_mode))
- return -ENOTDIR;
+ S_ISDIR(dst_inode_u->bi_mode)) {
+ ret = -ENOTDIR;
+ goto err;
+ }
if (S_ISDIR(dst_inode_u->bi_mode) &&
- bch2_empty_dir_trans(trans, dst_inode))
- return -ENOTEMPTY;
+ bch2_empty_dir_trans(trans, dst_inode)) {
+ ret = -ENOTEMPTY;
+ goto err;
+ }
}
if (bch2_reinherit_attrs(src_inode_u, dst_dir_u) &&
- S_ISDIR(src_inode_u->bi_mode))
- return -EXDEV;
+ S_ISDIR(src_inode_u->bi_mode)) {
+ ret = -EXDEV;
+ goto err;
+ }
if (mode == BCH_RENAME_EXCHANGE &&
bch2_reinherit_attrs(dst_inode_u, src_dir_u) &&
- S_ISDIR(dst_inode_u->bi_mode))
- return -EXDEV;
+ S_ISDIR(dst_inode_u->bi_mode)) {
+ ret = -EXDEV;
+ goto err;
+ }
if (S_ISDIR(src_inode_u->bi_mode)) {
src_dir_u->bi_nlink--;
if (dst_inode)
dst_inode_u->bi_ctime = now;
- return bch2_inode_write(trans, src_dir_iter, src_dir_u) ?:
+ ret = bch2_inode_write(trans, src_dir_iter, src_dir_u) ?:
(src_dir != dst_dir
? bch2_inode_write(trans, dst_dir_iter, dst_dir_u)
: 0 ) ?:
(dst_inode
? bch2_inode_write(trans, dst_inode_iter, dst_inode_u)
: 0 );
+err:
+ bch2_trans_iter_put(trans, dst_inode_iter);
+ bch2_trans_iter_put(trans, src_inode_iter);
+ bch2_trans_iter_put(trans, dst_dir_iter);
+ bch2_trans_iter_put(trans, src_dir_iter);
+ return ret;
}
projects / bcachefs-tools-debian / blobdiff