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);
}
/**
* add an orphan \a obj to the orphan index.
* \param obj file or directory.
* \param th transaction for index insert.
*
* \pre obj nlink == 0 && obj->mod_count != 0
*
* \retval 0 success
* \retval -ve index operation error.
*/
int mdd_orphan_insert(const struct lu_env *env, struct mdd_object *obj,
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);
struct dt_insert_rec *rec = &mdd_env_info(env)->mti_dt_rec;
int rc;
ENTRY;
LASSERT(mdd_write_locked(env, obj) != 0);
LASSERT(!(obj->mod_flags & ORPHAN_OBJ));
dt_write_lock(env, mdd->mdd_orphans, MOR_TGT_ORPHAN);
rc = mdd_orphan_insert_obj(env, mdd, obj, th);
if (rc)
GOTO(out, rc);
mdo_ref_add(env, obj, th);
if (!S_ISDIR(mdd_object_type(obj)))
GOTO(out, rc = 0);
mdo_ref_add(env, obj, th);
dt_ref_add(env, mdd->mdd_orphans, th);
/* try best to fixup directory, do not return errors from here */
if (!dt_try_as_dir(env, next))
GOTO(out, rc = 0);
dt_delete(env, next, (const struct dt_key *)dotdot, th);
rec->rec_fid = lf_dor;
rec->rec_type = S_IFDIR;
dt_insert(env, next, (const struct dt_rec *)rec,
(const struct dt_key *)dotdot, th);
out:
if (rc == 0)
obj->mod_flags |= ORPHAN_OBJ;
dt_write_unlock(env, mdd->mdd_orphans);
RETURN(rc);
}
/**
* delete an orphan \a obj from orphan index.
* \param obj file or directory.
* \param th transaction for index deletion and object destruction.
*
* \pre obj->mod_count == 0 && ORPHAN_OBJ is set for obj.
*
* \retval 0 success
* \retval -ve index operation error.
*/
int mdd_orphan_delete(const struct lu_env *env, struct mdd_object *obj,
struct thandle *th)
{
struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
struct dt_object *dor = mdd->mdd_orphans;
struct dt_key *key;
int rc = 0;
ENTRY;
LASSERT(mdd_write_locked(env, obj) != 0);
LASSERT(obj->mod_flags & ORPHAN_OBJ);
LASSERT(obj->mod_count == 0);
LASSERT(dor);
key = mdd_orphan_key_fill(env, mdo2fid(obj));
dt_write_lock(env, mdd->mdd_orphans, MOR_TGT_ORPHAN);
if (OBD_FAIL_CHECK(OBD_FAIL_MDS_ORPHAN_DELETE))
goto ref_del;
rc = dt_delete(env, mdd->mdd_orphans, key, th);
if (rc == -ENOENT) {
key = mdd_orphan_key_fill_20(env, mdo2fid(obj));
rc = dt_delete(env, mdd->mdd_orphans, key, th);
}
ref_del:
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);
dt_ref_del(env, mdd->mdd_orphans, th);
}
obj->mod_flags &= ~ORPHAN_OBJ;
} else {
CERROR("%s: could not delete orphan object "DFID": rc = %d\n",
mdd2obd_dev(mdd)->obd_name, PFID(mdo2fid(obj)), rc);
}
dt_write_unlock(env, mdd->mdd_orphans);
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);
}