[lxc-devel] [PATCH] c/r: enable tracefs

Stéphane Graber stgraber at ubuntu.com
Fri Aug 14 16:28:48 UTC 2015


On Fri, Aug 14, 2015 at 10:24:47AM -0600, Tycho Andersen wrote:
> tracefs is a new filesystem that can be mounted by users. Only the options
> and fs name need to be passed to restore the state, so we can use criu's
> auto fs feature.
> 
> Signed-off-by: Tycho Andersen <tycho.andersen at canonical.com>

Acked-by: Stéphane Graber <stgraber at ubuntu.com>

> ---
>  src/lxc/criu.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/src/lxc/criu.c b/src/lxc/criu.c
> index e939b37..bd6ecac 100644
> --- a/src/lxc/criu.c
> +++ b/src/lxc/criu.c
> @@ -49,7 +49,7 @@ lxc_log_define(lxc_criu, lxc);
>  void exec_criu(struct criu_opts *opts)
>  {
>  	char **argv, log[PATH_MAX];
> -	int static_args = 20, argc = 0, i, ret;
> +	int static_args = 22, argc = 0, i, ret;
>  	int netnr = 0;
>  	struct lxc_list *it;
>  
> @@ -60,7 +60,7 @@ void exec_criu(struct criu_opts *opts)
>  	 * --manage-cgroups action-script foo.sh -D $(directory) \
>  	 * -o $(directory)/$(action).log --ext-mount-map auto
>  	 * --enable-external-sharing --enable-external-masters
> -	 * --enable-fs hugetlbfs
> +	 * --enable-fs hugetlbfs --enable-fs tracefs
>  	 * +1 for final NULL */
>  
>  	if (strcmp(opts->action, "dump") == 0) {
> @@ -122,6 +122,8 @@ void exec_criu(struct criu_opts *opts)
>  	DECLARE_ARG("--enable-external-masters");
>  	DECLARE_ARG("--enable-fs");
>  	DECLARE_ARG("hugetlbfs");
> +	DECLARE_ARG("--enable-fs");
> +	DECLARE_ARG("tracefs");
>  	DECLARE_ARG("-D");
>  	DECLARE_ARG(opts->directory);
>  	DECLARE_ARG("-o");
> -- 
> 2.1.4
> 
> _______________________________________________
> lxc-devel mailing list
> lxc-devel at lists.linuxcontainers.org
> http://lists.linuxcontainers.org/listinfo/lxc-devel

-- 
Stéphane Graber
Ubuntu developer
http://www.ubuntu.com
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