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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-03-23 16:10:00 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-03-27 12:24:36 -0400
commit0695314ef0920b745423510f1e96bf60415a404a (patch)
tree5a226e4308ff50a130f16c3365ba5e06d7ce6b5b /net/sunrpc/xprt.c
parent09a330f4b9324e40947cc4fff13606719382c580 (diff)
SUNRPC: Fix a regression when reconnecting
If the task needs to give up the socket lock in order to allow a reconnect to occur, then it must also clear the 'rq_bytes_sent' field so that when it retransmits, it knows to start from the beginning. Fixes: 718ba5b87343 ("SUNRPC: Add helpers to prevent socket create from racing") Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'net/sunrpc/xprt.c')
-rw-r--r--net/sunrpc/xprt.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index e3015aede0d9..ed4aa786c240 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -326,6 +326,15 @@ out_unlock:
xprt_clear_locked(xprt);
}
+static void xprt_task_clear_bytes_sent(struct rpc_task *task)
+{
+ if (task != NULL) {
+ struct rpc_rqst *req = task->tk_rqstp;
+ if (req != NULL)
+ req->rq_bytes_sent = 0;
+ }
+}
+
/**
* xprt_release_xprt - allow other requests to use a transport
* @xprt: transport with other tasks potentially waiting
@@ -336,11 +345,7 @@ out_unlock:
void xprt_release_xprt(struct rpc_xprt *xprt, struct rpc_task *task)
{
if (xprt->snd_task == task) {
- if (task != NULL) {
- struct rpc_rqst *req = task->tk_rqstp;
- if (req != NULL)
- req->rq_bytes_sent = 0;
- }
+ xprt_task_clear_bytes_sent(task);
xprt_clear_locked(xprt);
__xprt_lock_write_next(xprt);
}
@@ -358,11 +363,7 @@ EXPORT_SYMBOL_GPL(xprt_release_xprt);
void xprt_release_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task)
{
if (xprt->snd_task == task) {
- if (task != NULL) {
- struct rpc_rqst *req = task->tk_rqstp;
- if (req != NULL)
- req->rq_bytes_sent = 0;
- }
+ xprt_task_clear_bytes_sent(task);
xprt_clear_locked(xprt);
__xprt_lock_write_next_cong(xprt);
}
@@ -700,6 +701,7 @@ bool xprt_lock_connect(struct rpc_xprt *xprt,
goto out;
if (xprt->snd_task != task)
goto out;
+ xprt_task_clear_bytes_sent(task);
xprt->snd_task = cookie;
ret = true;
out: