On Mon, 14 Aug 2017, Boris Ostrovsky wrote: > > > + > > > + ret = bedata->rsp[req_id].ret; > > > > You can just return bedata->rsp[req_id].ret; > > Or maybe not. The slot may get reused by the time you get to the end.
Right! > > > > -boris > > > > > + /* read ret, then set this rsp slot to be reused */ > > > + smp_mb(); > > > + WRITE_ONCE(bedata->rsp[req_id].req_id, PVCALLS_INVALID_ID); > > > + WRITE_ONCE(map->passive.inflight_req_id, PVCALLS_INVALID_ID); > > > + return ret; > > > +} > _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
