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kern: dev9p: Rwrite's count can be greater than Twrite's one

This commit is contained in:
Giacomo Tesio 2017-12-06 01:32:21 +01:00
parent 726217c766
commit 3946a06a98
1 changed files with 8 additions and 3 deletions
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11
sys/src/kern/port/dev9p.c
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@ -744,10 +744,15 @@ mntrdwr(int type, Chan *c, void *buf, long n, int64_t off)
r->request.count = nreq; r->request.count = nreq;
mountrpc(mnt, r); mountrpc(mnt, r);
nr = r->reply.count; nr = r->reply.count;
if(nr > nreq) if(type == Tread){
nr = nreq; /* in Jehanne, we let the server respond
if(type == Tread) * to Twrite with a count bigger than the
* requested
*/
if(nr > nreq)
nr = nreq;
nr = readblist(r->b, (uint8_t*)uba, nr, 0); nr = readblist(r->b, (uint8_t*)uba, nr, 0);
}
mntfree(r); mntfree(r);
poperror(); poperror();