提交 8985ef0b 编写于 作者: J J. Bruce Fields

svcrpc: complete svsk processing on cb receive failure

Currently when there's some failure to receive a callback (because we
couldn't find a matching xid, for example), we exit svc_recv with
sk_tcplen still set but without any pages saved with the socket.  This
will cause a crash later in svc_tcp_restore_pages.

Instead, make sure we reset that tcp information whether the callback
received failed or succeeded.
Signed-off-by: NJ. Bruce Fields <bfields@redhat.com>
上级 d6c55837
......@@ -1143,11 +1143,8 @@ static int svc_tcp_recvfrom(struct svc_rqst *rqstp)
p = (__be32 *)rqstp->rq_arg.head[0].iov_base;
calldir = p[1];
if (calldir) {
if (calldir)
len = receive_cb_reply(svsk, rqstp);
if (len < 0)
goto error;
}
/* Reset TCP read info */
svsk->sk_reclen = 0;
......@@ -1156,6 +1153,8 @@ static int svc_tcp_recvfrom(struct svc_rqst *rqstp)
if (svc_recv_available(svsk) > sizeof(rpc_fraghdr))
set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
if (len < 0)
goto error;
svc_xprt_copy_addrs(rqstp, &svsk->sk_xprt);
if (serv->sv_stats)
......
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