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venti: fix sync deadlock, add /proc stub

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This commit is contained in:
Russ Cox 2007-10-29 14:33:17 -04:00
parent c5a183de10
commit 45ac814c86
20 changed files with 176 additions and 261 deletions
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21
src/cmd/venti/srv/index.c
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@ -541,20 +541,33 @@ ZZZ question: should this distinguish between an arena
filling up and real errors writing the clump?
*/
u64int
writeiclump(Index *ix, Clump *c, u8int *clbuf, u64int *pa)
writeiclump(Index *ix, Clump *c, u8int *clbuf)
{
u64int a;
int i;
IAddr ia;
AState as;
trace(TraceLump, "writeiclump enter");
qlock(&ix->writing);
for(i = ix->mapalloc; i < ix->narenas; i++){
a = writeaclump(ix->arenas[i], c, clbuf, ix->amap[i].start, pa);
a = writeaclump(ix->arenas[i], c, clbuf);
if(a != TWID64){
ix->mapalloc = i; /* assuming write is atomic, race is okay */
ix->mapalloc = i;
ia.addr = ix->amap[i].start + a;
ia.type = c->info.type;
ia.size = c->info.uncsize;
ia.blocks = (c->info.size + ClumpSize + (1<<ABlockLog) - 1) >> ABlockLog;
as.arena = ix->arenas[i];
as.aa = ia.addr;
as.stats = as.arena->memstats;
insertscore(c->info.score, &ia, IEDirty, &as);
qunlock(&ix->writing);
trace(TraceLump, "writeiclump exit");
return a;
return ia.addr;
}
}
qunlock(&ix->writing);
seterr(EAdmin, "no space left in arenas");
trace(TraceLump, "writeiclump failed");