LU-9704 grant: ignore grant info on read resend

[fs/lustre-release.git] / lustre / ofd / ofd_dev.c

diff --git a/lustre/ofd/ofd_dev.c b/lustre/ofd/ofd_dev.c
index 1261963..628e7c9 100644 (file)
--- a/lustre/ofd/ofd_dev.c
+++ b/lustre/ofd/ofd_dev.c
@@ -910,6 +910,19 @@ static int ofd_set_info_hdl(struct tgt_session_info *tsi)
        if (is_grant_shrink) {
                body = req_capsule_client_get(tsi->tsi_pill, &RMF_OST_BODY);
 
+               /*
+                * Because we already sync grant info with client when
+                * reconnect, grant info will be cleared for resent
+                * req, otherwise, outdated grant count in the rpc
+                * would de-sync grant counters
+                */
+               if (lustre_msg_get_flags(req->rq_reqmsg) &
+                   (MSG_RESENT | MSG_REPLAY)) {
+                       DEBUG_REQ(D_CACHE, req,
+                                 "clear resent/replay req grant info");
+                       body->oa.o_valid &= ~OBD_MD_FLGRANT;
+               }
+
                repbody = req_capsule_server_get(tsi->tsi_pill, &RMF_OST_BODY);
                *repbody = *body;