static int orphan_object_destroy(const struct lu_env *env,
struct mdd_object *obj,
struct dt_key *key)
{
struct thandle *th = NULL;
struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
int rc = 0;
ENTRY;
mdd_txn_param_build(env, mdd, MDD_TXN_UNLINK_OP);
th = mdd_trans_start(env, mdd);
if (IS_ERR(th)) {
CERROR("Cannot get thandle\n");
RETURN(-ENOMEM);
}
mdd_write_lock(env, obj, MOR_TGT_CHILD);
if (likely(obj->mod_count == 0)) {
mdd_orphan_write_lock(env, mdd);
rc = mdd_orphan_delete_obj(env, mdd, key, th);
if (!rc)
orphan_object_kill(env, obj, mdd, th);
else
CERROR("could not delete object: rc = %d\n",rc);
mdd_orphan_write_unlock(env, mdd);
}
mdd_write_unlock(env, obj);
mdd_trans_stop(env, mdd, 0, th);
RETURN(rc);
}
static int orph_index_insert(const struct lu_env *env,
struct mdd_object *obj,
__u32 op,
struct thandle *th)
{
struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
struct dt_object *dor = mdd->mdd_orphans;
const struct lu_fid *lf_dor = lu_object_fid(&dor->do_lu);
struct dt_object *next = mdd_object_child(obj);
int rc;
ENTRY;
LASSERT(mdd_write_locked(env, obj) != 0);
LASSERT(!(obj->mod_flags & ORPHAN_OBJ));
mdd_orphan_write_lock(env, mdd);
rc = mdd_orphan_insert_obj(env, mdd, obj, op, th);
if (rc)
GOTO(out, rc);
mdo_ref_add(env, obj, th);
if (!S_ISDIR(mdd_object_type(obj)))
goto out;
mdo_ref_add(env, obj, th);
mdd_orphan_ref_add(env, mdd, th);
/* try best to fixup directory, dont return errors
* from here */
if (!dt_try_as_dir(env, next))
goto out;
next->do_index_ops->dio_delete(env, next,
(const struct dt_key *)dotdot,
th, BYPASS_CAPA);
next->do_index_ops->dio_insert(env, next,
(struct dt_rec *)lf_dor,
(const struct dt_key *)dotdot,
th, BYPASS_CAPA, 1);
out:
if (rc == 0)
obj->mod_flags |= ORPHAN_OBJ;
mdd_orphan_write_unlock(env, mdd);
RETURN(rc);
}
static int orphan_object_destroy(const struct lu_env *env,
struct mdd_object *obj,
struct dt_key *key)
{
struct thandle *th = NULL;
struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
int rc = 0;
ENTRY;
th = mdd_trans_create(env, mdd);
if (IS_ERR(th)) {
CERROR("Cannot get thandle\n");
RETURN(PTR_ERR(th));
}
rc = orph_declare_index_delete(env, obj, th);
if (rc)
GOTO(stop, rc);
rc = mdo_declare_destroy(env, obj, th);
if (rc)
GOTO(stop, rc);
rc = mdd_trans_start(env, mdd, th);
if (rc)
GOTO(stop, rc);
mdd_write_lock(env, obj, MOR_TGT_CHILD);
if (likely(obj->mod_count == 0)) {
mdd_orphan_write_lock(env, mdd);
rc = mdd_orphan_delete_obj(env, mdd, key, th);
if (rc == 0) {
mdo_ref_del(env, obj, th);
if (S_ISDIR(mdd_object_type(obj))) {
mdo_ref_del(env, obj, th);
mdd_orphan_ref_del(env, mdd, th);
}
rc = mdo_destroy(env, obj, th);
} else
CERROR("could not delete object: rc = %d\n", rc);
mdd_orphan_write_unlock(env, mdd);
}
mdd_write_unlock(env, obj);
stop:
rc = mdd_trans_stop(env, mdd, 0, th);
RETURN(rc);
}
static int orph_index_delete(const struct lu_env *env,
struct mdd_object *obj,
__u32 op,
struct thandle *th)
{
struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
struct dt_object *dor = mdd->mdd_orphans;
struct dt_key *key;
int rc;
ENTRY;
LASSERT(mdd_write_locked(env, obj) != 0);
LASSERT(obj->mod_flags & ORPHAN_OBJ);
LASSERT(obj->mod_count == 0);
LASSERT(dor);
key = orph_key_fill(env, mdo2fid(obj), op);
mdd_orphan_write_lock(env, mdd);
rc = mdd_orphan_delete_obj(env, mdd, key, th);
if (rc == -ENOENT) {
key = orph_key_fill_18(env, mdo2fid(obj));
rc = mdd_orphan_delete_obj(env, mdd, key, th);
}
if (!rc) {
/* lov objects will be destroyed by caller */
mdo_ref_del(env, obj, th);
if (S_ISDIR(mdd_object_type(obj))) {
mdo_ref_del(env, obj, th);
mdd_orphan_ref_del(env, mdd, th);
}
obj->mod_flags &= ~ORPHAN_OBJ;
} else {
CERROR("could not delete object: rc = %d\n",rc);
}
mdd_orphan_write_unlock(env, mdd);
RETURN(rc);
}
