From 6a24dfb645dbcb05b34d08b991d082bdaa3ff072 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 8 Jan 2013 09:48:15 -0500 Subject: [PATCH] SUNRPC: Pass pointers to struct rpc_xprt to the congestion window Avoid access to task->tk_xprt Signed-off-by: Trond Myklebust --- include/linux/sunrpc/xprt.h | 4 ++-- net/sunrpc/xprt.c | 6 +++--- net/sunrpc/xprtsock.c | 6 +++--- 3 files changed, 8 insertions(+), 8 deletions(-) diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 7dd598a5c9aa..30834be03011 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -122,7 +122,7 @@ struct rpc_xprt_ops { void (*buf_free)(void *buffer); int (*send_request)(struct rpc_task *task); void (*set_retrans_timeout)(struct rpc_task *task); - void (*timer)(struct rpc_task *task); + void (*timer)(struct rpc_xprt *xprt, struct rpc_task *task); void (*release_request)(struct rpc_task *task); void (*close)(struct rpc_xprt *xprt); void (*destroy)(struct rpc_xprt *xprt); @@ -313,7 +313,7 @@ void xprt_set_retrans_timeout_rtt(struct rpc_task *task); void xprt_wake_pending_tasks(struct rpc_xprt *xprt, int status); void xprt_wait_for_buffer_space(struct rpc_task *task, rpc_action action); void xprt_write_space(struct rpc_xprt *xprt); -void xprt_adjust_cwnd(struct rpc_task *task, int result); +void xprt_adjust_cwnd(struct rpc_xprt *xprt, struct rpc_task *task, int result); struct rpc_rqst * xprt_lookup_rqst(struct rpc_xprt *xprt, __be32 xid); void xprt_complete_rqst(struct rpc_task *task, int copied); void xprt_release_rqst_cong(struct rpc_task *task); diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 774025109e2f..e1e439ea177f 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -438,15 +438,15 @@ EXPORT_SYMBOL_GPL(xprt_release_rqst_cong); /** * xprt_adjust_cwnd - adjust transport congestion window + * @xprt: pointer to xprt * @task: recently completed RPC request used to adjust window * @result: result code of completed RPC request * * We use a time-smoothed congestion estimator to avoid heavy oscillation. */ -void xprt_adjust_cwnd(struct rpc_task *task, int result) +void xprt_adjust_cwnd(struct rpc_xprt *xprt, struct rpc_task *task, int result) { struct rpc_rqst *req = task->tk_rqstp; - struct rpc_xprt *xprt = task->tk_xprt; unsigned long cwnd = xprt->cwnd; if (result >= 0 && cwnd <= xprt->cong) { @@ -834,7 +834,7 @@ static void xprt_timer(struct rpc_task *task) spin_lock_bh(&xprt->transport_lock); if (!req->rq_reply_bytes_recvd) { if (xprt->ops->timer) - xprt->ops->timer(task); + xprt->ops->timer(xprt, task); } else task->tk_status = 0; spin_unlock_bh(&xprt->transport_lock); diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index f7d6e4f8c162..37cbda63f45c 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -1005,7 +1005,7 @@ static void xs_udp_data_ready(struct sock *sk, int len) UDPX_INC_STATS_BH(sk, UDP_MIB_INDATAGRAMS); - xprt_adjust_cwnd(task, copied); + xprt_adjust_cwnd(xprt, task, copied); xprt_complete_rqst(task, copied); out_unlock: @@ -1646,9 +1646,9 @@ static void xs_udp_set_buffer_size(struct rpc_xprt *xprt, size_t sndsize, size_t * * Adjust the congestion window after a retransmit timeout has occurred. */ -static void xs_udp_timer(struct rpc_task *task) +static void xs_udp_timer(struct rpc_xprt *xprt, struct rpc_task *task) { - xprt_adjust_cwnd(task, -ETIMEDOUT); + xprt_adjust_cwnd(xprt, task, -ETIMEDOUT); } static unsigned short xs_get_random_port(void) -- 2.20.1