90 enum requeststatus build_rq_buffer(struct rqelement *rqe, struct plex *plex);
125     struct plex *plex;  in bre5()  local
138     plex = &PLEX[plexno];                                       /* point to the plex */  in bre5()
142 …   if (*diskaddr >= plex->length)                                  /* beyond the end of the plex */  in bre5()
153           m.stripeoffset = *diskaddr % (plex->stripesize * (plex->subdisks - 1));  in bre5()
162           if (plex->organization == plex_raid5)  in bre5()
163               m.psdno = plex->subdisks - 1  in bre5()
164                     - (*diskaddr / (plex->stripesize * (plex->subdisks - 1)))  in bre5()
165                     % plex->subdisks;  in bre5()
167               m.psdno = plex->subdisks - 1;  in bre5()
173           m.firstsdno = m.stripeoffset / plex->stripesize;  in bre5()
181           m.initoffset = m.stripeoffset % plex->stripesize;  in bre5()
184           m.sdbase = m.stripebase / (plex->subdisks - 1);  in bre5()
193 …          plex->stripesize - m.initoffset);                 /* and the amount left in this block */  in bre5()
201               plex->stripesize * (plex->subdisks - 1) - m.stripeoffset);  in bre5()
204           m.sdcount = (m.stripesectors + m.initoffset + plex->stripesize - 1) / plex->stripesize;  in bre5()
350 …plex->multiblock++;                                         /* more than one block for the request…  in bre5()
357               if (rsectors < plex->stripesize) {  in bre5()
363           if (SD[plex->sdnos[m.psdno]].state < sd_reborn)       /* is our parity subdisk down? */  in bre5()
369                     if (mysdno == plex->subdisks)               /* wraparound */  in bre5()
374                     if (SD[plex->sdnos[mysdno]].state < sd_reborn) { /* got a bad subdisk, */  in bre5()
381                         plex->recovered_reads++;                /* count another one */  in bre5()
388 …             m.datalen = umin(rsectors, plex->stripesize); /* amount that will fit in this block */  in bre5()
394                     if (mysdno == plex->subdisks)               /* wraparound */  in bre5()
399                     sd = &SD[plex->sdnos[mysdno]];  in bre5()
414                                   struct sd *sd = &SD[plex->sdnos[sdno]];  in bre5()
422                         plex->degraded_writes++;                /* count another one */  in bre5()
441 …             m.datalen = umin(rsectors, plex->stripesize); /* amount that will fit in this block */  in bre5()
444                     struct sd *psd = &SD[plex->sdnos[m.psdno]];  in bre5()
452                     plex->parityless_writes++;                  /* count another one */  in bre5()
463               m.rqcount = plex->subdisks;                                 /* all subdisks */  in bre5()
488               sd = &SD[plex->sdnos[m.psdno]];                   /* the subdisk in question */  in bre5()
495               if (build_rq_buffer(rqe, plex))                   /* build the buffer */  in bre5()
509               if (mysdno == plex->subdisks)                     /* got to the end, */  in bre5()
515               sd = &SD[plex->sdnos[mysdno]];                    /* the subdisk in question */  in bre5()
534               if (build_rq_buffer(rqe, plex))                   /* build the buffer */  in bre5()
544               m.datalen = umin(m.stripesectors, plex->stripesize);    /* and recalculate */  in bre5()
560                     if (mysdno == plex->subdisks)               /* got to the end, */  in bre5()
566 …                sd = &SD[plex->sdnos[mysdno]];                        /* the subdisk in question */  in bre5()
579                     if (build_rq_buffer(rqe, plex))                       /* build the buffer */  in bre5()
594               plex->multistripe++;                              /* count another one */  in bre5()