When the inline threshold size is set to large values (say, 32KB) any NFSv4.1 CB request from the server gets a reply with status NFS4ERR_RESOURCE. Looks like there are some upper layer assumptions about the maximum size of a reply (for example, in process_op). Cap the size of the NFSv4 client's reply resources at a page. Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx> --- net/sunrpc/xprtrdma/backchannel.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/sunrpc/xprtrdma/backchannel.c b/net/sunrpc/xprtrdma/backchannel.c index 2c472e1..24fedd4 100644 --- a/net/sunrpc/xprtrdma/backchannel.c +++ b/net/sunrpc/xprtrdma/backchannel.c @@ -55,7 +55,8 @@ static int rpcrdma_bc_setup_rqst(struct rpcrdma_xprt *r_xprt, if (IS_ERR(rb)) goto out_fail; req->rl_sendbuf = rb; - xdr_buf_init(&rqst->rq_snd_buf, rb->rg_base, size); + xdr_buf_init(&rqst->rq_snd_buf, rb->rg_base, + min_t(size_t, size, PAGE_SIZE)); rpcrdma_set_xprtdata(rqst, req); return 0; @@ -191,6 +192,7 @@ size_t xprt_rdma_bc_maxpayload(struct rpc_xprt *xprt) size_t maxmsg; maxmsg = min_t(unsigned int, cdata->inline_rsize, cdata->inline_wsize); + maxmsg = min_t(unsigned int, maxmsg, PAGE_SIZE); return maxmsg - RPCRDMA_HDRLEN_MIN; } -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
