LU-7408 target: declare write for reply data

declare reply_data at max possible offset - this ensures
enough credits reserved.

Signed-off-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Change-Id: I08466452e1e95b803f316abae777a8c8f4a8626e
Reviewed-on: http://review.whamcloud.com/17086
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>

diff --git a/lustre/target/tgt_lastrcvd.c b/lustre/target/tgt_lastrcvd.c
index 39b697c..0c9cc87 100644 (file)
--- a/lustre/target/tgt_lastrcvd.c
+++ b/lustre/target/tgt_lastrcvd.c
@@ -1722,6 +1722,18 @@ int tgt_txn_start_cb(const struct lu_env *env, struct thandle *th,
        if (rc)
                return rc;
 
+       if (tgt_is_multimodrpcs_client(tsi->tsi_exp)) {
+               tti->tti_off = atomic_read(&tgt->lut_num_clients) * 8
+                               * sizeof(struct lsd_reply_data);
+               tti->tti_buf.lb_buf = NULL;
+               tti->tti_buf.lb_len = sizeof(struct lsd_reply_data);
+               dto = dt_object_locate(tgt->lut_reply_data, th->th_dev);
+               rc = dt_declare_record_write(env, dto, &tti->tti_buf,
+                                            tti->tti_off, th);
+               if (rc)
+                       return rc;
+       }
+
        if (tsi->tsi_vbr_obj != NULL &&
            !lu_object_remote(&tsi->tsi_vbr_obj->do_lu)) {
                dto = dt_object_locate(tsi->tsi_vbr_obj, th->th_dev);