NFS: rsize and wsize settings ignored on v4 mounts

NFSv4 mounts ignore the rsize and wsize mount options, and always use
the default transfer size for both.  This seems to be because all
NFSv4 mounts are now cloned, and the cloning logic doesn't copy the
rsize and wsize settings from the parent nfs_server.

I tested Fedora's 2.6.32.11-99 and it seems to have this problem as
well, so I'm guessing that .33, .32, and perhaps older kernels have
this issue as well.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Stable <stable@kernel.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index a8766c4ef2e09f143b52a69d464b320ad1b5d76d..acc9c4943b84723639cdcf88dd2656c06c67010f 100644 (file)
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -966,6 +966,8 @@ out_error:
 static void nfs_server_copy_userdata(struct nfs_server *target, struct nfs_server *source)
 {
        target->flags = source->flags;
+       target->rsize = source->rsize;
+       target->wsize = source->wsize;
        target->acregmin = source->acregmin;
        target->acregmax = source->acregmax;
        target->acdirmin = source->acdirmin;