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authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>2017-09-20 15:45:06 +0300
committerEric Blake <eblake@redhat.com>2017-09-25 08:21:26 -0500
commit93970672210ca1ee45fdebbc11e1fd97916c7c8e (patch)
treeaf001062ac01c14413ba00598551909088e9ad91 /block/nbd-client.c
parent319a56cde7313ca42a72e0a145ffa8e7832ada86 (diff)
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 <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>
Diffstat (limited to 'block/nbd-client.c')
-rw-r--r--block/nbd-client.c3
1 files changed, 2 insertions, 1 deletions
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));