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authorTrond Myklebust <trondmy@gmail.com>2019-04-07 13:58:49 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2019-04-25 14:18:13 -0400
commit6b2e6856275d7b8d0acbf06d2e8da72e1a6bc857 (patch)
treec16d3740c787caef985e09c1069591f3722a847f /net/sunrpc/xprt.c
parent8357a9b60fe7500699a9dec540ca1c48df3cb455 (diff)
SUNRPC: Add function rpc_sleep_on_timeout()
Clean up the RPC task sleep interfaces by replacing the task->tk_timeout 'hidden parameter' to rpc_sleep_on() with a new function that takes an absolute timeout. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprt.c')
-rw-r--r--net/sunrpc/xprt.c36
1 files changed, 21 insertions, 15 deletions
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 5afffa669d04..7c3623b17493 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -209,9 +209,12 @@ out_unlock:
out_sleep:
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;
- rpc_sleep_on(&xprt->sending, task, NULL);
+ if (RPC_IS_SOFT(task))
+ rpc_sleep_on_timeout(&xprt->sending, task, NULL,
+ jiffies + req->rq_timeout);
+ else
+ rpc_sleep_on(&xprt->sending, task, NULL);
return 0;
}
EXPORT_SYMBOL_GPL(xprt_reserve_xprt);
@@ -273,9 +276,12 @@ out_unlock:
xprt_clear_locked(xprt);
out_sleep:
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;
- rpc_sleep_on(&xprt->sending, task, NULL);
+ if (RPC_IS_SOFT(task))
+ rpc_sleep_on_timeout(&xprt->sending, task, NULL,
+ jiffies + req->rq_timeout);
+ else
+ rpc_sleep_on(&xprt->sending, task, NULL);
return 0;
}
EXPORT_SYMBOL_GPL(xprt_reserve_xprt_cong);
@@ -787,9 +793,9 @@ void xprt_connect(struct rpc_task *task)
xprt->ops->close(xprt);
if (!xprt_connected(xprt)) {
- task->tk_timeout = task->tk_rqstp->rq_timeout;
task->tk_rqstp->rq_connect_cookie = xprt->connect_cookie;
- rpc_sleep_on(&xprt->pending, task, NULL);
+ rpc_sleep_on_timeout(&xprt->pending, task, NULL,
+ jiffies + task->tk_rqstp->rq_timeout);
if (test_bit(XPRT_CLOSING, &xprt->state))
return;
@@ -1080,8 +1086,8 @@ void xprt_wait_for_reply_request_def(struct rpc_task *task)
{
struct rpc_rqst *req = task->tk_rqstp;
- task->tk_timeout = req->rq_timeout;
- rpc_sleep_on(&req->rq_xprt->pending, task, xprt_timer);
+ rpc_sleep_on_timeout(&req->rq_xprt->pending, task, xprt_timer,
+ jiffies + req->rq_timeout);
}
EXPORT_SYMBOL_GPL(xprt_wait_for_reply_request_def);
@@ -1099,12 +1105,14 @@ void xprt_wait_for_reply_request_rtt(struct rpc_task *task)
struct rpc_rtt *rtt = clnt->cl_rtt;
struct rpc_rqst *req = task->tk_rqstp;
unsigned long max_timeout = clnt->cl_timeout->to_maxval;
+ unsigned long timeout;
- task->tk_timeout = rpc_calc_rto(rtt, timer);
- task->tk_timeout <<= rpc_ntimeo(rtt, timer) + req->rq_retries;
- if (task->tk_timeout > max_timeout || task->tk_timeout == 0)
- task->tk_timeout = max_timeout;
- rpc_sleep_on(&req->rq_xprt->pending, task, xprt_timer);
+ timeout = rpc_calc_rto(rtt, timer);
+ timeout <<= rpc_ntimeo(rtt, timer) + req->rq_retries;
+ if (timeout > max_timeout || timeout == 0)
+ timeout = max_timeout;
+ rpc_sleep_on_timeout(&req->rq_xprt->pending, task, xprt_timer,
+ jiffies + timeout);
}
EXPORT_SYMBOL_GPL(xprt_wait_for_reply_request_rtt);
@@ -1656,7 +1664,6 @@ void xprt_reserve(struct rpc_task *task)
if (task->tk_rqstp != NULL)
return;
- task->tk_timeout = 0;
task->tk_status = -EAGAIN;
if (!xprt_throttle_congested(xprt, task))
xprt_do_reserve(xprt, task);
@@ -1679,7 +1686,6 @@ void xprt_retry_reserve(struct rpc_task *task)
if (task->tk_rqstp != NULL)
return;
- task->tk_timeout = 0;
task->tk_status = -EAGAIN;
xprt_do_reserve(xprt, task);
}