From 93970672210ca1ee45fdebbc11e1fd97916c7c8e Mon Sep 17 00:00:00 2001 From: Vladimir Sementsov-Ogievskiy Date: Wed, 20 Sep 2017 15:45:06 +0300 Subject: [PATCH] block/nbd-client: simplify check in nbd_co_receive_reply 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 Reviewed-by: Eric Blake Message-Id: <20170920124507.18841-3-vsementsov@virtuozzo.com> Signed-off-by: Eric Blake --- block/nbd-client.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/block/nbd-client.c b/block/nbd-client.c index 5168a2cab6..ac93c4c0d0 100644 --- a/block/nbd-client.c +++ b/block/nbd-client.c @@ -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));