nfsd4: nfsd4_check_resp_size needn't recalculate length
We're keeping the length updated as we go now, so there's no need for the extra calculation here. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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@ -3752,32 +3752,20 @@ static nfsd4_enc nfsd4_enc_ops[] = {
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*/
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__be32 nfsd4_check_resp_size(struct nfsd4_compoundres *resp, u32 pad)
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{
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struct xdr_buf *xb = &resp->rqstp->rq_res;
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struct xdr_buf *buf = &resp->rqstp->rq_res;
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struct nfsd4_session *session = NULL;
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struct nfsd4_slot *slot = resp->cstate.slot;
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u32 length, tlen = 0;
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if (!nfsd4_has_session(&resp->cstate))
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return 0;
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session = resp->cstate.session;
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if (xb->page_len == 0) {
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length = (char *)resp->xdr.p - (char *)xb->head[0].iov_base + pad;
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} else {
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if (xb->tail[0].iov_base && xb->tail[0].iov_len > 0)
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tlen = (char *)resp->xdr.p - (char *)xb->tail[0].iov_base;
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length = xb->head[0].iov_len + xb->page_len + tlen + pad;
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}
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dprintk("%s length %u, xb->page_len %u tlen %u pad %u\n", __func__,
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length, xb->page_len, tlen, pad);
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if (length > session->se_fchannel.maxresp_sz)
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if (buf->len + pad > session->se_fchannel.maxresp_sz)
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return nfserr_rep_too_big;
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if ((slot->sl_flags & NFSD4_SLOT_CACHETHIS) &&
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length > session->se_fchannel.maxresp_cached)
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buf->len + pad > session->se_fchannel.maxresp_cached)
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return nfserr_rep_too_big_to_cache;
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return 0;
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