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authorPaolo Bonzini <pbonzini@redhat.com>2017-02-13 14:52:24 +0100
committerStefan Hajnoczi <stefanha@redhat.com>2017-02-21 11:14:08 +0000
commitff82911cd3f69f028f2537825c9720ff78bc3f19 (patch)
tree68ea48537278208b0246e42061fcf2ac9b22cf1d /nbd/client.c
parentc4c497d27f0be8552ae244e76ba2bce66bd2443e (diff)
downloadqemu-ff82911cd3f69f028f2537825c9720ff78bc3f19.tar.gz
nbd: convert to use qio_channel_yield
In the client, read the reply headers from a coroutine, switching the read side between the "read header" coroutine and the I/O coroutine that reads the body of the reply. In the server, if the server can read more requests it will create a new "read request" coroutine as soon as a request has been read. Otherwise, the new coroutine is created in nbd_request_put. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170213135235.12274-8-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'nbd/client.c')
-rw-r--r--nbd/client.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/nbd/client.c b/nbd/client.c
index ffb0743bce..5c9dee37fa 100644
--- a/nbd/client.c
+++ b/nbd/client.c
@@ -778,7 +778,7 @@ ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply)
ssize_t ret;
ret = read_sync(ioc, buf, sizeof(buf));
- if (ret < 0) {
+ if (ret <= 0) {
return ret;
}