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| author | Chuck Lever <chuck.lever@oracle.com> | 2019-02-11 11:25:41 -0500 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2019-02-14 11:58:44 -0500 |
| commit | 2c94b8eca1a26cd46010d6e73a23da5f2e93a19d (patch) | |
| tree | cd90799dc57ddabf330e8540ff939743292162c7 /net | |
| parent | 35e77d21baa04b554bf3dc9a08dfa7e569286e51 (diff) | |
| download | linux-0-day-2c94b8eca1a26cd46010d6e73a23da5f2e93a19d.tar.gz linux-0-day-2c94b8eca1a26cd46010d6e73a23da5f2e93a19d.tar.xz | |
SUNRPC: Use au_rslack when computing reply buffer size
au_rslack is significantly smaller than (au_cslack << 2). Using
that value results in smaller receive buffers. In some cases this
eliminates an extra segment in Reply chunks (RPC/RDMA).
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/clnt.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 99bfeb17367cb..241e8423fd0c9 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -1690,7 +1690,7 @@ call_refreshresult(struct rpc_task *task) static void call_allocate(struct rpc_task *task) { - unsigned int slack = task->tk_rqstp->rq_cred->cr_auth->au_cslack; + const struct rpc_auth *auth = task->tk_rqstp->rq_cred->cr_auth; struct rpc_rqst *req = task->tk_rqstp; struct rpc_xprt *xprt = req->rq_xprt; const struct rpc_procinfo *proc = task->tk_msg.rpc_proc; @@ -1715,9 +1715,10 @@ call_allocate(struct rpc_task *task) * and reply headers, and convert both values * to byte sizes. */ - req->rq_callsize = RPC_CALLHDRSIZE + (slack << 1) + proc->p_arglen; + req->rq_callsize = RPC_CALLHDRSIZE + (auth->au_cslack << 1) + + proc->p_arglen; req->rq_callsize <<= 2; - req->rq_rcvsize = RPC_REPHDRSIZE + slack + proc->p_replen; + req->rq_rcvsize = RPC_REPHDRSIZE + auth->au_rslack + proc->p_replen; req->rq_rcvsize <<= 2; status = xprt->ops->buf_alloc(task); |