[CRIU] [PATCH] opts: Add -n "all" option

[Pavel Emelyanov]

On 05/28/2013 07:25 PM, Cyrill Gorcunov wrote:
> It accumulates all ns options we can handle.

This option is deprecated and is about to be removed.

> Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
> ---
>  Documentation/criu.txt | 2 ++
>  crtools.c              | 3 +++
>  2 files changed, 5 insertions(+)
> 
> diff --git a/Documentation/criu.txt b/Documentation/criu.txt
> index 7d8ca2b..57425c7 100644
> --- a/Documentation/criu.txt
> +++ b/Documentation/criu.txt
> @@ -65,6 +65,8 @@ OPTIONS
>  *-n*, *--namespaces* 'ns'[,'ns'...]::
>      Checkpoint namespaces. Namespaces must be separated by comma.
>      Currently supported namespaces: *uts*, *ipc*, *mnt*, *pid*, *net*.
> +    If all supported namespaces are to be checkpointed the option
> +    argument can be shortened with *all* keyword.
>  
>  *-r*, *--root* 'path'::
>      Change the root filesystem (when run in mount namespace).
> diff --git a/crtools.c b/crtools.c
> index ea31e94..dcc04a5 100644
> --- a/crtools.c
> +++ b/crtools.c
> @@ -35,6 +35,7 @@ struct cr_options opts;
>  
>  static int parse_ns_string(const char *ptr)
>  {
> +	const unsigned int all = (-1u) & ~CLONE_NEWUSER;
>  	const char *end = ptr + strlen(ptr);
>  
>  	do {
> @@ -50,6 +51,8 @@ static int parse_ns_string(const char *ptr)
>  			opts.rst_namespaces_flags |= CLONE_NEWPID;
>  		else if (!strncmp(ptr, "net", 3))
>  			opts.rst_namespaces_flags |= CLONE_NEWNET;
> +		else if (!strncmp(ptr, "all", 3))
> +			opts.rst_namespaces_flags  = all;
>  		else
>  			goto bad_ns;
>  		ptr += 4;
>