[LTP] [PATCH 1/2] Add test for per-NS NFS client statistics

[Petr Vorel]

Hi Martin,

> Check that /proc/net/rpc/nfs file exists in nested network namespaces.

> Signed-off-by: Martin Doucha <mdoucha@suse.cz>
> ---

> Only do the minimal check here. If the file exists in namespaces,
> nfsstat01.sh will take care of functional testing.

>  runtest/net.nfs                              |  2 ++
>  testcases/network/nfs/nfsstat01/nfsstat02.sh | 23 ++++++++++++++++++++
>  2 files changed, 25 insertions(+)
>  create mode 100755 testcases/network/nfs/nfsstat01/nfsstat02.sh

> diff --git a/runtest/net.nfs b/runtest/net.nfs
> index 929868a7b..7f84457bc 100644
> --- a/runtest/net.nfs
> +++ b/runtest/net.nfs
> @@ -116,6 +116,8 @@ nfsstat01_v40_ip6t nfsstat01.sh -6 -v 4 -t tcp
>  nfsstat01_v41_ip6t nfsstat01.sh -6 -v 4.1 -t tcp
>  nfsstat01_v42_ip6t nfsstat01.sh -6 -v 4.2 -t tcp

> +nfsstat02 nfsstat02.sh
> +
>  fsx_v30_ip4u fsx.sh -v 3 -t udp
>  fsx_v30_ip4t fsx.sh -v 3 -t tcp
>  fsx_v40_ip4t fsx.sh -v 4 -t tcp
> diff --git a/testcases/network/nfs/nfsstat01/nfsstat02.sh b/testcases/network/nfs/nfsstat01/nfsstat02.sh
> new file mode 100755
> index 000000000..1e1bebe97
> --- /dev/null
> +++ b/testcases/network/nfs/nfsstat01/nfsstat02.sh
> @@ -0,0 +1,23 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0-or-later
> +# Copyright (c) 2024 SUSE LLC <mdoucha@suse.cz>
> +
> +TST_TESTFUNC="do_test"
> +
> +# PURPOSE:  Check that /proc/net/rpc/nfs exists in nested network namespaces
I would point here a commit which added it or a patchset.

Shell API does not have functionality to point out missing kernel git commit,
but that might change. But even without it a comment is useful.

Maybe point out d47151b79e32 ("nfs: expose /proc/net/sunrpc/nfs in net namespaces")
and whole patchset
https://lore.kernel.org/linux-nfs/cover.1708026931.git.josef@toxicpanda.com/

Reviewed-by: Petr Vorel <pvorel@suse.cz>
Tested on 6.8 and 6.11 mainline
Tested-by: Petr Vorel <pvorel@suse.cz>

Thanks for this test!

Kind regards,
Petr

> +do_test()
> +{
> +	local procfile="/proc/net/rpc/nfs"
> +
> +	if tst_rhost_run -c "test -e '$procfile'"; then
> +		tst_res TPASS "$procfile exists in net namespaces"
> +	else
> +		tst_res TFAIL "$procfile missing in net namespaces"
> +	fi
> +}
> +
> +# Force use of nested net namespace
> +unset RHOST
> +
> +. nfs_lib.sh
> +tst_run