From 79c99152a374c72c8b90c27b3d46d990641951bb Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 9 Sep 2018 13:53:05 -0400 Subject: [PATCH] SUNRPC: Convert the xprt->sending queue back to an ordinary wait queue We no longer need priority semantics on the xprt->sending queue, because the order in which tasks are sent is now dictated by their position in the send queue. Note that the backlog queue remains a priority queue, meaning that slot resources are still managed in order of task priority. Signed-off-by: Trond Myklebust --- net/sunrpc/xprt.c | 20 +++----------------- 1 file changed, 3 insertions(+), 17 deletions(-) diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 480461ad0c86..7333874c6595 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -192,7 +192,6 @@ static void xprt_clear_locked(struct rpc_xprt *xprt) int xprt_reserve_xprt(struct rpc_xprt *xprt, struct rpc_task *task) { struct rpc_rqst *req = task->tk_rqstp; - int priority; if (test_and_set_bit(XPRT_LOCKED, &xprt->state)) { if (task == xprt->snd_task) @@ -212,13 +211,7 @@ int xprt_reserve_xprt(struct rpc_xprt *xprt, struct rpc_task *task) task->tk_pid, xprt); task->tk_timeout = RPC_IS_SOFT(task) ? req->rq_timeout : 0; task->tk_status = -EAGAIN; - if (req == NULL) - priority = RPC_PRIORITY_LOW; - else if (!req->rq_ntrans) - priority = RPC_PRIORITY_NORMAL; - else - priority = RPC_PRIORITY_HIGH; - rpc_sleep_on_priority(&xprt->sending, task, NULL, priority); + rpc_sleep_on(&xprt->sending, task, NULL); return 0; } EXPORT_SYMBOL_GPL(xprt_reserve_xprt); @@ -260,7 +253,6 @@ xprt_test_and_clear_congestion_window_wait(struct rpc_xprt *xprt) int xprt_reserve_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task) { struct rpc_rqst *req = task->tk_rqstp; - int priority; if (test_and_set_bit(XPRT_LOCKED, &xprt->state)) { if (task == xprt->snd_task) @@ -283,13 +275,7 @@ int xprt_reserve_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task) dprintk("RPC: %5u failed to lock transport %p\n", task->tk_pid, xprt); task->tk_timeout = RPC_IS_SOFT(task) ? req->rq_timeout : 0; task->tk_status = -EAGAIN; - if (req == NULL) - priority = RPC_PRIORITY_LOW; - else if (!req->rq_ntrans) - priority = RPC_PRIORITY_NORMAL; - else - priority = RPC_PRIORITY_HIGH; - rpc_sleep_on_priority(&xprt->sending, task, NULL, priority); + rpc_sleep_on(&xprt->sending, task, NULL); return 0; } EXPORT_SYMBOL_GPL(xprt_reserve_xprt_cong); @@ -1796,7 +1782,7 @@ static void xprt_init(struct rpc_xprt *xprt, struct net *net) rpc_init_wait_queue(&xprt->binding, "xprt_binding"); rpc_init_wait_queue(&xprt->pending, "xprt_pending"); - rpc_init_priority_wait_queue(&xprt->sending, "xprt_sending"); + rpc_init_wait_queue(&xprt->sending, "xprt_sending"); rpc_init_priority_wait_queue(&xprt->backlog, "xprt_backlog"); xprt_init_xid(xprt);