From 9e910bff74be819aad751e82270682f3c405d199 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 7 Apr 2019 13:58:53 -0400 Subject: SUNRPC: Ensure that the transport layer respect major timeouts Ensure that when in the transport layer, we don't sleep past a major timeout. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker --- net/sunrpc/xprt.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 36af1a1929af..642cc0f64e44 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -73,6 +73,15 @@ static void xprt_destroy(struct rpc_xprt *xprt); static DEFINE_SPINLOCK(xprt_list_lock); static LIST_HEAD(xprt_list); +static unsigned long xprt_request_timeout(const struct rpc_rqst *req) +{ + unsigned long timeout = jiffies + req->rq_timeout; + + if (time_before(timeout, req->rq_majortimeo)) + return timeout; + return req->rq_majortimeo; +} + /** * xprt_register_transport - register a transport implementation * @transport: transport to register @@ -212,7 +221,7 @@ out_sleep: task->tk_status = -EAGAIN; if (RPC_IS_SOFT(task)) rpc_sleep_on_timeout(&xprt->sending, task, NULL, - jiffies + req->rq_timeout); + xprt_request_timeout(req)); else rpc_sleep_on(&xprt->sending, task, NULL); return 0; @@ -279,7 +288,7 @@ out_sleep: task->tk_status = -EAGAIN; if (RPC_IS_SOFT(task)) rpc_sleep_on_timeout(&xprt->sending, task, NULL, - jiffies + req->rq_timeout); + xprt_request_timeout(req)); else rpc_sleep_on(&xprt->sending, task, NULL); return 0; @@ -795,7 +804,7 @@ void xprt_connect(struct rpc_task *task) if (!xprt_connected(xprt)) { task->tk_rqstp->rq_connect_cookie = xprt->connect_cookie; rpc_sleep_on_timeout(&xprt->pending, task, NULL, - jiffies + task->tk_rqstp->rq_timeout); + xprt_request_timeout(task->tk_rqstp)); if (test_bit(XPRT_CLOSING, &xprt->state)) return; @@ -1087,7 +1096,7 @@ void xprt_wait_for_reply_request_def(struct rpc_task *task) struct rpc_rqst *req = task->tk_rqstp; rpc_sleep_on_timeout(&req->rq_xprt->pending, task, xprt_timer, - jiffies + req->rq_timeout); + xprt_request_timeout(req)); } EXPORT_SYMBOL_GPL(xprt_wait_for_reply_request_def); -- cgit v1.2.3