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SUNRPC: Clean up transport write space handling

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Treat socket write space handling in the same way we now treat transport
congestion: by denying the XPRT_LOCK until the transport signals that it
has free buffer space.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust
2018-09-03 23:39:27 -04:00
parent 36bd7de949
commit c544577dad
8 changed files with 73 additions and 82 deletions
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2
net/sunrpc/svc_xprt.c
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@@ -171,7 +171,6 @@ void svc_xprt_init(struct net *net, struct svc_xprt_class *xcl,
mutex_init(&xprt->xpt_mutex);
spin_lock_init(&xprt->xpt_lock);
set_bit(XPT_BUSY, &xprt->xpt_flags);
rpc_init_wait_queue(&xprt->xpt_bc_pending, "xpt_bc_pending");
xprt->xpt_net = get_net(net);
strcpy(xprt->xpt_remotebuf, "uninitialized");
}
@@ -895,7 +894,6 @@ int svc_send(struct svc_rqst *rqstp)
else
len = xprt->xpt_ops->xpo_sendto(rqstp);
mutex_unlock(&xprt->xpt_mutex);
rpc_wake_up(&xprt->xpt_bc_pending);
trace_svc_send(rqstp, len);
svc_xprt_release(rqstp);