summaryrefslogtreecommitdiffstats
path: root/fs/nfs/nfs4xdr.c
diff options
context:
space:
mode:
authorMike Sager <sager@netapp.com>2009-12-17 12:06:26 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-02-10 08:30:54 -0500
commit8e0d46e13833b06832395e7eacccae8af8743461 (patch)
tree8670415c7be9a3d24e25c566b7629823cd0a38c2 /fs/nfs/nfs4xdr.c
parent5a51f13adf7909caec2f8182767485c30e21364e (diff)
downloadop-kernel-dev-8e0d46e13833b06832395e7eacccae8af8743461.zip
op-kernel-dev-8e0d46e13833b06832395e7eacccae8af8743461.tar.gz
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 <sager@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4xdr.c')
-rw-r--r--fs/nfs/nfs4xdr.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index e437fd6..020ebf1 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 */
OpenPOWER on IntegriCloud