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block/nbd-client: simplify check in nbd_co_receive_reply

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If we are woken up from while() loop in nbd_read_reply_entry
handles must be equal. If we are woken up from
nbd_recv_coroutines_wake_all s->quit must be true, so we do
not need checking handles equality.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20170920124507.18841-3-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2017-09-20 15:45:06 +03:00 • committed by Eric Blake
parent 319a56cde7
commit 9397067221
1 changed files with 2 additions and 1 deletions
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3
block/nbd-client.c
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@ -189,9 +189,10 @@ static int nbd_co_receive_reply(NBDClientSession *s,
s->requests[i].receiving = true;
qemu_coroutine_yield();
s->requests[i].receiving = false;
if (s->reply.handle != request->handle || !s->ioc || s->quit) {
if (!s->ioc || s->quit) {
ret = -EIO;
} else {
assert(s->reply.handle == request->handle);
ret = -s->reply.error;
if (qiov && s->reply.error == 0) {
assert(request->len == iov_size(qiov->iov, qiov->niov));