int orph_declare_index_delete(const struct lu_env *env,
struct mdd_object *obj,
struct thandle *th)
{
struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
struct dt_key *key;
int rc;
key = orph_key_fill(env, mdo2fid(obj), ORPH_OP_UNLINK);
rc = dt_declare_delete(env, mdd->mdd_orphans, key, th);
if (rc)
return rc;
rc = mdo_declare_ref_del(env, obj, th);
if (rc)
return rc;
if (S_ISDIR(mdd_object_type(obj))) {
rc = mdo_declare_ref_del(env, obj, th);
if (rc)
return rc;
rc = dt_declare_ref_del(env, mdd->mdd_orphans, th);
}
return rc;
}
int mdd_orphan_declare_delete(const struct lu_env *env, struct mdd_object *obj,
struct thandle *th)
{
struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
struct dt_key *key;
int rc;
key = mdd_orphan_key_fill(env, mdo2fid(obj));
rc = dt_declare_delete(env, mdd->mdd_orphans, key, th);
if (rc)
return rc;
if (!mdd_object_exists(obj))
return -ENOENT;
rc = mdo_declare_ref_del(env, obj, th);
if (rc)
return rc;
if (S_ISDIR(mdd_object_type(obj))) {
rc = mdo_declare_ref_del(env, obj, th);
if (rc)
return rc;
rc = dt_declare_ref_del(env, mdd->mdd_orphans, th);
}
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);
}
int orph_declare_index_insert(const struct lu_env *env,
struct mdd_object *obj,
umode_t mode, struct thandle *th)
{
struct dt_insert_rec *rec = &mdd_env_info(env)->mti_dt_rec;
struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
struct dt_key *key;
int rc;
key = orph_key_fill(env, mdo2fid(obj), ORPH_OP_UNLINK);
rec->rec_fid = mdo2fid(obj);
rec->rec_type = mode;
rc = dt_declare_insert(env, mdd->mdd_orphans,
(const struct dt_rec *)rec, key, th);
if (rc != 0)
return rc;
rc = mdo_declare_ref_add(env, obj, th);
if (rc)
return rc;
if (!S_ISDIR(mode))
return 0;
rc = mdo_declare_ref_add(env, obj, th);
if (rc)
return rc;
rc = dt_declare_ref_add(env, mdd->mdd_orphans, th);
if (rc)
return rc;
rc = mdo_declare_index_delete(env, obj, dotdot, th);
if (rc)
return rc;
rc = mdo_declare_index_insert(env, obj,
lu_object_fid(&mdd->mdd_orphans->do_lu),
S_IFDIR, dotdot, th);
return rc;
}
static inline int mdd_orphan_insert_obj(const struct lu_env *env,
struct mdd_device *mdd,
struct mdd_object *obj,
__u32 op, struct thandle *th)
{
struct dt_insert_rec *rec = &mdd_env_info(env)->mti_dt_rec;
struct dt_object *dor = mdd->mdd_orphans;
const struct lu_fid *lf = mdo2fid(obj);
struct dt_key *key = orph_key_fill(env, lf, op);
rec->rec_fid = lf;
rec->rec_type = mdd_object_type(obj);
return dt_insert(env, dor, (const struct dt_rec *)rec, key, th, 1);
}
static inline int mdd_orphan_insert_obj(const struct lu_env *env,
struct mdd_device *mdd,
struct mdd_object *obj,
__u32 op,
struct thandle *th)
{
struct dt_object *dor = mdd->mdd_orphans;
const struct lu_fid *lf = mdo2fid(obj);
struct dt_key *key = orph_key_fill(env, lf, op);
ENTRY;
return dor->do_index_ops->dio_insert(env, dor,
(struct dt_rec *)lf,
key, th,
BYPASS_CAPA, 1);
}
int orph_declare_index_insert(const struct lu_env *env,
struct mdd_object *obj,
cfs_umode_t mode, struct thandle *th)
{
struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
struct dt_key *key;
int rc;
key = orph_key_fill(env, mdo2fid(obj), ORPH_OP_UNLINK);
rc = dt_declare_insert(env, mdd->mdd_orphans, NULL, key, th);
if (rc)
return rc;
rc = mdo_declare_ref_add(env, obj, th);
if (rc)
return rc;
if (!S_ISDIR(mode))
return 0;
rc = mdo_declare_ref_add(env, obj, th);
if (rc)
return rc;
rc = dt_declare_ref_add(env, mdd->mdd_orphans, th);
if (rc)
return rc;
rc = mdo_declare_index_delete(env, obj, dotdot, th);
if (rc)
return rc;
rc = mdo_declare_index_insert(env, obj, NULL, dotdot, th);
return rc;
}
static int mdd_orphan_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);
bool orphan_exists = true;
int rc = 0;
ENTRY;
th = mdd_trans_create(env, mdd);
if (IS_ERR(th)) {
rc = PTR_ERR(th);
if (rc != -EINPROGRESS)
CERROR("%s: cannot get orphan thandle: rc = %d\n",
mdd2obd_dev(mdd)->obd_name, rc);
RETURN(rc);
}
mdd_write_lock(env, obj, MOR_TGT_CHILD);
rc = mdd_orphan_declare_delete(env, obj, th);
if (rc == -ENOENT)
orphan_exists = false;
else if (rc)
GOTO(unlock, rc);
if (orphan_exists) {
rc = mdo_declare_destroy(env, obj, th);
if (rc)
GOTO(unlock, rc);
}
rc = mdd_trans_start(env, mdd, th);
if (rc)
GOTO(unlock, rc);
if (likely(obj->mod_count == 0)) {
dt_write_lock(env, mdd->mdd_orphans, MOR_TGT_ORPHAN);
rc = dt_delete(env, mdd->mdd_orphans, key, th);
if (rc) {
CERROR("%s: could not delete orphan "DFID": rc = %d\n",
mdd2obd_dev(mdd)->obd_name, PFID(mdo2fid(obj)),
rc);
} else if (orphan_exists) {
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);
}
rc = mdo_destroy(env, obj, th);
} else {
CWARN("%s: orphan %s "DFID" doesn't exist\n",
mdd2obd_dev(mdd)->obd_name, (char *)key,
PFID(mdo2fid(obj)));
}
dt_write_unlock(env, mdd->mdd_orphans);
}
unlock:
mdd_write_unlock(env, obj);
rc = mdd_trans_stop(env, mdd, 0, th);
RETURN(rc);
}