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SUNRPC: Return EAGAIN instead of ENOTCONN when waking up xprt->pending

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While we should definitely return socket errors to the task that is
currently trying to send data, there is no need to propagate the same error
to all the other tasks on xprt->pending. Doing so actually slows down
recovery, since it causes more than one tasks to attempt socket recovery.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2009-03-11 14:38:00 -04:00
parent 482f32e65d
commit 2a4919919a
3 changed files with 41 additions and 52 deletions
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15
net/sunrpc/clnt.c
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@@ -1032,27 +1032,20 @@ call_connect_status(struct rpc_task *task)
dprint_status(task);
task->tk_status = 0;
if (status >= 0) {
if (status >= 0 || status == -EAGAIN) {
clnt->cl_stats->netreconn++;
task->tk_action = call_transmit;
return;
}
/* Something failed: remote service port may have changed */
rpc_force_rebind(clnt);
switch (status) {
case -ENOTCONN:
case -EAGAIN:
task->tk_action = call_bind;
if (!RPC_IS_SOFT(task))
return;
/* if soft mounted, test if we've timed out */
case -ETIMEDOUT:
task->tk_action = call_timeout;
return;
break;
default:
rpc_exit(task, -EIO);
}
rpc_exit(task, -EIO);
}
/*