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SUNRPC: Don't wake queued RPC calls multiple times in xprt_transmit 

Rather than waking up the entire queue of RPC messages a second time,
just wake up the task that was put to sleep.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
hifive-unleashed-5.1
Trond Myklebust 2018-08-29 09:30:19 -04:00
parent 5ce970393b
commit ec37a58fba
1 changed files with 3 additions and 6 deletions
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9
net/sunrpc/xprt.c
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@ -1079,13 +1079,10 @@ void xprt_transmit(struct rpc_task *task)
spin_lock(&xprt->recv_lock);
if (test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate)) {
rpc_sleep_on(&xprt->pending, task, xprt_timer);
/*
* Send an extra queue wakeup call if the
* connection was dropped in case the call to
* rpc_sleep_on() raced.
*/
/* Wake up immediately if the connection was dropped */
if (!xprt_connected(xprt))
xprt_wake_pending_tasks(xprt, -ENOTCONN);
rpc_wake_up_queued_task_set_status(&xprt->pending,
task, -ENOTCONN);
}
spin_unlock(&xprt->recv_lock);
}