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authorTrond Myklebust <Trond.Myklebust@netapp.com>2009-03-11 21:38:01 +0300
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-03-11 21:38:01 +0300
commit5e3771ce2d6a69e10fcc870cdf226d121d868491 (patch)
tree3c20ee45ae8b87621ae95cedb6b385bf0e6d7a2f /net/sunrpc
parent8a2cec295f4499cc9d4452e9b02d4ed071bb42d3 (diff)
downloadlinux-5e3771ce2d6a69e10fcc870cdf226d121d868491.tar.xz
SUNRPC: Ensure that xs_nospace return values are propagated
If xs_nospace() finds that the socket has disconnected, it attempts to return ENOTCONN, however that value is then squashed by the callers. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/xprtsock.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 9f3e615d3e09..2e070679ab4a 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -521,11 +521,12 @@ static void xs_nospace_callback(struct rpc_task *task)
* @task: task to put to sleep
*
*/
-static void xs_nospace(struct rpc_task *task)
+static int xs_nospace(struct rpc_task *task)
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+ int ret = 0;
dprintk("RPC: %5u xmit incomplete (%u left of %u)\n",
task->tk_pid, req->rq_slen - req->rq_bytes_sent,
@@ -537,6 +538,7 @@ static void xs_nospace(struct rpc_task *task)
/* Don't race with disconnect */
if (xprt_connected(xprt)) {
if (test_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags)) {
+ ret = -EAGAIN;
/*
* Notify TCP that we're limited by the application
* window size
@@ -548,10 +550,11 @@ static void xs_nospace(struct rpc_task *task)
}
} else {
clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags);
- task->tk_status = -ENOTCONN;
+ ret = -ENOTCONN;
}
spin_unlock_bh(&xprt->transport_lock);
+ return ret;
}
/**
@@ -603,7 +606,7 @@ static int xs_udp_send_request(struct rpc_task *task)
/* Should we call xs_close() here? */
break;
case -EAGAIN:
- xs_nospace(task);
+ status = xs_nospace(task);
break;
default:
dprintk("RPC: sendmsg returned unrecognized error %d\n",
@@ -706,7 +709,7 @@ static int xs_tcp_send_request(struct rpc_task *task)
/* Should we call xs_close() here? */
break;
case -EAGAIN:
- xs_nospace(task);
+ status = xs_nospace(task);
break;
default:
dprintk("RPC: sendmsg returned unrecognized error %d\n",