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[Qemu-block] [PATCH v3 2/3] block/nbd-client: simplify check in nbd_co_r
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[Qemu-block] [PATCH v3 2/3] block/nbd-client: simplify check in nbd_co_receive_reply |
Date: |
Wed, 20 Sep 2017 15:45:06 +0300 |
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 <address@hidden>
---
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 acd8e5d007..486bfff9f7 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));
--
2.11.1