]> Zhao Yanbai Git Server - minix.git/commitdiff
Get rid of asynsend backup copy in VFS
authorErik van der Kouwe <erik@minix3.org>
Fri, 25 Jun 2010 14:57:54 +0000 (14:57 +0000)
committerErik van der Kouwe <erik@minix3.org>
Fri, 25 Jun 2010 14:57:54 +0000 (14:57 +0000)
servers/vfs/device.c

index 2ceba6d6622a4b86a1a6d6d3e19c69816597a91d..c1764ae8866852c0552191f44dd4395b213200bc 100644 (file)
@@ -1051,93 +1051,3 @@ PUBLIC void reopen_reply()
 
   restart_reopen(maj);
 }
-
-#if 0
-#define ASYN_NR        100
-PRIVATE asynmsg_t msgtable[ASYN_NR];
-PRIVATE int first_slot= 0, next_slot= 0;
-
-PUBLIC int asynsend(dst, mp)
-endpoint_t dst;
-message *mp;
-{
-       int r, src_ind, dst_ind;
-       unsigned flags;
-
-       /* Update first_slot */
-       for (; first_slot < next_slot; first_slot++)
-       {
-               flags= msgtable[first_slot].flags;
-               if ((flags & (AMF_VALID|AMF_DONE)) == (AMF_VALID|AMF_DONE))
-               {
-                       if (msgtable[first_slot].result != OK)
-                       {
-                               printf(
-                       "asynsend: found completed entry %d with error %d\n",
-                                       first_slot,
-                                       msgtable[first_slot].result);
-                       }
-                       continue;
-               }
-               if (flags != AMF_EMPTY)
-                       break;
-       }
-
-       if (first_slot >= next_slot)
-       {
-               /* Reset first_slot and next_slot */
-               next_slot= first_slot= 0;
-       }
-
-       if (next_slot >= ASYN_NR)
-       {
-               /* Tell the kernel to stop processing */
-               r= senda(NULL, 0);
-               if (r != OK)
-                       panic("asynsend: senda failed: %d", r);
-
-               dst_ind= 0;
-               for (src_ind= first_slot; src_ind<next_slot; src_ind++)
-               {
-                       flags= msgtable[src_ind].flags;
-                       if ((flags & (AMF_VALID|AMF_DONE)) ==
-                               (AMF_VALID|AMF_DONE))
-                       {
-                               if (msgtable[src_ind].result != OK)
-                               {
-                                       printf(
-                       "asynsend: found completed entry %d with error %d\n",
-                                               src_ind,
-                                               msgtable[src_ind].result);
-                               }
-                               continue;
-                       }
-                       if (flags == AMF_EMPTY)
-                               continue;
-#if 0
-                       printf("asynsend: copying entry %d to %d\n",
-                               src_ind, dst_ind);
-#endif
-                       if (src_ind != dst_ind)
-                               msgtable[dst_ind]= msgtable[src_ind];
-                       dst_ind++;
-               }
-               first_slot= 0;
-               next_slot= dst_ind;
-               if (next_slot >= ASYN_NR)
-                       panic("asynsend: msgtable full");
-       }
-
-       msgtable[next_slot].dst= dst;
-       msgtable[next_slot].msg= *mp;
-       msgtable[next_slot].flags= AMF_VALID;   /* Has to be last. The kernel 
-                                                * scans this table while we
-                                                * are sleeping.
-                                                */
-       next_slot++;
-
-       /* Tell the kernel to rescan the table */
-       return senda(msgtable+first_slot, next_slot-first_slot);
-}
-#endif
-