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SUNRPC: Ensure that we grab the XPRT_LOCK before calling xprt_alloc_slot

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This throttles the allocation of new slots when the socket is busy
reconnecting and/or is out of buffer space.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2011-07-17 16:01:03 -04:00
parent f85ef69ce0
commit 43cedbf0e8
4 changed files with 50 additions and 31 deletions
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2
net/sunrpc/xprtsock.c
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@ -755,6 +755,8 @@ static void xs_tcp_release_xprt(struct rpc_xprt *xprt, struct rpc_task *task)
if (task == NULL)
goto out_release;
req = task->tk_rqstp;
if (req == NULL)
goto out_release;
if (req->rq_bytes_sent == 0)
goto out_release;
if (req->rq_bytes_sent == req->rq_snd_buf.len)