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Get rid of asynsend backup copy in VFS

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This commit is contained in:
Erik van der Kouwe 2010-06-25 14:57:54 +00:00
parent 5c7d64b981
commit c0dfa2f3f1
1 changed files with 0 additions and 90 deletions
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90
servers/vfs/device.c
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@ -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