nfs41: V2 adjust max_rqst_sz, max_resp_sz w.r.t to rsize, wsize

The v4.1 client should take into account the desired rsize, wsize when
negotiating the max size in CREATE_SESSION. Accordingly, it should use
rsize, wsize that are smaller than the session negotiated values.

Signed-off-by: Alexandros Batsakis <batsakis@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 7466d24893f7..83a9284b83c7 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -191,6 +191,10 @@ extern __be32 *nfs3_decode_dirent(__be32 *, struct nfs_entry *, int);
 #ifdef CONFIG_NFS_V4
 extern __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus);
 #endif
+#ifdef CONFIG_NFS_V4_1
+extern const u32 nfs41_maxread_overhead;
+extern const u32 nfs41_maxwrite_overhead;
+#endif
 
 /* nfs4proc.c */
 extern void nfs4_restart_rpc(struct rpc_task *, const struct nfs_client *,