From 8e0d46e13833b06832395e7eacccae8af8743461 Mon Sep 17 00:00:00 2001 From: Mike Sager Date: Thu, 17 Dec 2009 12:06:26 -0500 Subject: nfs41: Adjust max cache response size value For the CREATE_SESSION attribute ca_maxresponsesize_cached, calculate the value based on the rpc reply header size plus the maximum nfs compound reply size. Signed-off-by: Mike Sager Signed-off-by: Trond Myklebust --- fs/nfs/nfs4xdr.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'fs/nfs/nfs4xdr.c') diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index e437fd6a819f..020ebf151184 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -1578,6 +1578,14 @@ static void encode_create_session(struct xdr_stream *xdr, char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; uint32_t len; struct nfs_client *clp = args->client; + u32 max_resp_sz_cached; + + /* + * Assumes OPEN is the biggest non-idempotent compound. + * 2 is the verifier. + */ + max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + + RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; len = scnprintf(machine_name, sizeof(machine_name), "%s", clp->cl_ipaddr); @@ -1592,7 +1600,7 @@ static void encode_create_session(struct xdr_stream *xdr, *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ - *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ + *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ -- cgit v1.2.3-55-g7522