}
EXPORT_SYMBOL(req_capsule_shrink);
-int req_capsule_server_grow(struct req_capsule *pill,
- const struct req_msg_field *field,
- unsigned int newlen)
-{
- struct ptlrpc_reply_state *rs = pill->rc_req->rq_reply_state, *nrs;
- char *from, *to;
- int offset, len, rc;
-
- LASSERT(pill->rc_fmt != NULL);
- LASSERT(__req_format_is_sane(pill->rc_fmt));
- LASSERT(req_capsule_has_field(pill, field, RCL_SERVER));
- LASSERT(req_capsule_field_present(pill, field, RCL_SERVER));
-
- len = req_capsule_get_size(pill, field, RCL_SERVER);
- offset = __req_capsule_offset(pill, field, RCL_SERVER);
- if (pill->rc_req->rq_repbuf_len >=
- lustre_packed_msg_size(pill->rc_req->rq_repmsg) - len + newlen)
- CERROR("Inplace repack might be done\n");
-
- pill->rc_req->rq_reply_state = NULL;
- req_capsule_set_size(pill, field, RCL_SERVER, newlen);
- rc = req_capsule_server_pack(pill);
- if (rc) {
- /* put old rs back, the caller will decide what to do */
- pill->rc_req->rq_reply_state = rs;
- return rc;
- }
- nrs = pill->rc_req->rq_reply_state;
- /* Now we need only buffers, copy first chunk */
- to = lustre_msg_buf(nrs->rs_msg, 0, 0);
- from = lustre_msg_buf(rs->rs_msg, 0, 0);
- len = (char *)lustre_msg_buf(rs->rs_msg, offset, 0) - from;
- memcpy(to, from, len);
- /* check if we have tail and copy it too */
- if (rs->rs_msg->lm_bufcount > offset + 1) {
- to = lustre_msg_buf(nrs->rs_msg, offset + 1, 0);
- from = lustre_msg_buf(rs->rs_msg, offset + 1, 0);
- offset = rs->rs_msg->lm_bufcount - 1;
- len = (char *)lustre_msg_buf(rs->rs_msg, offset, 0) +
- cfs_size_round(rs->rs_msg->lm_buflens[offset]) - from;
- memcpy(to, from, len);
- }
- /* drop old reply if everything is fine */
- if (rs->rs_difficult) {
- /* copy rs data */
- int i;
-
- nrs->rs_difficult = 1;
- nrs->rs_no_ack = rs->rs_no_ack;
- for (i = 0; i < rs->rs_nlocks; i++) {
- nrs->rs_locks[i] = rs->rs_locks[i];
- nrs->rs_modes[i] = rs->rs_modes[i];
- nrs->rs_nlocks++;
- }
- rs->rs_nlocks = 0;
- rs->rs_difficult = 0;
- rs->rs_no_ack = 0;
- }
- ptlrpc_rs_decref(rs);
- return 0;
-}
-EXPORT_SYMBOL(req_capsule_server_grow);
/* __REQ_LAYOUT_USER__ */
#endif