static dmu_buf_t *osd_mkdir(const struct lu_env *env, struct osd_object *obj,
struct lu_attr *la, struct osd_thandle *oh)
{
dmu_buf_t *db;
int rc;
LASSERT(S_ISDIR(la->la_mode));
rc = __osd_zap_create(env, osd_obj2dev(obj), &db, oh->ot_tx, la, 0);
if (rc)
return ERR_PTR(rc);
return db;
}
static dmu_buf_t *osd_mkdir(const struct lu_env *env, struct osd_device *osd,
struct lu_attr *la, struct osd_thandle *oh)
{
dmu_buf_t *db;
int rc;
LASSERT(S_ISDIR(la->la_mode));
rc = __osd_zap_create(env, &osd->od_objset, &db, oh->ot_tx, la,
osd_obj_tag, 0);
if (rc)
return ERR_PTR(rc);
return db;
}
static dmu_buf_t *osd_mkidx(const struct lu_env *env, struct osd_device *osd,
struct lu_attr *la, struct osd_thandle *oh)
{
dmu_buf_t *db;
int rc;
/* Index file should be created as regular file in order not to confuse
* ZPL which could interpret them as directory.
* We set ZAP_FLAG_UINT64_KEY to let ZFS know than we are going to use
* binary keys */
LASSERT(S_ISREG(la->la_mode));
rc = __osd_zap_create(env, &osd->od_objset, &db, oh->ot_tx, la,
osd_obj_tag, ZAP_FLAG_UINT64_KEY);
if (rc)
return ERR_PTR(rc);
return db;
}
int
__osd_xattr_set(const struct lu_env *env, struct osd_object *obj,
const struct lu_buf *buf, const char *name, int fl,
struct osd_thandle *oh)
{
struct osd_device *osd = osd_obj2dev(obj);
dmu_buf_t *xa_zap_db = NULL;
dmu_buf_t *xa_data_db = NULL;
uint64_t xa_data_obj;
sa_handle_t *sa_hdl = NULL;
dmu_tx_t *tx = oh->ot_tx;
uint64_t size;
int rc;
LASSERT(obj->oo_sa_hdl);
if (obj->oo_xattr == ZFS_NO_OBJECT) {
struct lu_attr *la = &osd_oti_get(env)->oti_la;
la->la_valid = LA_MODE;
la->la_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO;
rc = __osd_zap_create(env, osd, &xa_zap_db, tx, la,
obj->oo_db->db_object, 0);
if (rc)
return rc;
obj->oo_xattr = xa_zap_db->db_object;
rc = osd_object_sa_update(obj, SA_ZPL_XATTR(osd),
&obj->oo_xattr, 8, oh);
if (rc)
goto out;
}
rc = -zap_lookup(osd->od_os, obj->oo_xattr, name, sizeof(uint64_t), 1,
&xa_data_obj);
if (rc == 0) {
if (fl & LU_XATTR_CREATE) {
rc = -EEXIST;
goto out;
}
/*
* Entry already exists.
* We'll truncate the existing object.
*/
rc = __osd_obj2dbuf(env, osd->od_os, xa_data_obj,
&xa_data_db);
if (rc)
goto out;
rc = -sa_handle_get(osd->od_os, xa_data_obj, NULL,
SA_HDL_PRIVATE, &sa_hdl);
if (rc)
goto out;
rc = -sa_lookup(sa_hdl, SA_ZPL_SIZE(osd), &size, 8);
if (rc)
goto out_sa;
rc = -dmu_free_range(osd->od_os, xa_data_db->db_object,
0, DMU_OBJECT_END, tx);
if (rc)
goto out_sa;
} else if (rc == -ENOENT) {
struct lu_attr *la = &osd_oti_get(env)->oti_la;
/*
* Entry doesn't exist, we need to create a new one and a new
* object to store the value.
*/
if (fl & LU_XATTR_REPLACE) {
/* should be ENOATTR according to the
* man, but that is undefined here */
rc = -ENODATA;
goto out;
}
la->la_valid = LA_MODE;
la->la_mode = S_IFREG | S_IRUGO | S_IWUSR;
rc = __osd_object_create(env, obj, &xa_data_db, tx, la,
obj->oo_xattr);
if (rc)
goto out;
xa_data_obj = xa_data_db->db_object;
rc = -sa_handle_get(osd->od_os, xa_data_obj, NULL,
SA_HDL_PRIVATE, &sa_hdl);
if (rc)
goto out;
rc = -zap_add(osd->od_os, obj->oo_xattr, name, sizeof(uint64_t),
1, &xa_data_obj, tx);
if (rc)
goto out_sa;
} else {
/* There was an error looking up the xattr name */
goto out;
}
/* Finally write the xattr value */
dmu_write(osd->od_os, xa_data_obj, 0, buf->lb_len, buf->lb_buf, tx);
size = buf->lb_len;
rc = -sa_update(sa_hdl, SA_ZPL_SIZE(osd), &size, 8, tx);
out_sa:
sa_handle_destroy(sa_hdl);
out:
if (xa_data_db != NULL)
dmu_buf_rele(xa_data_db, FTAG);
if (xa_zap_db != NULL)
dmu_buf_rele(xa_zap_db, FTAG);
return rc;
}
