[Devel] [PATCH vz10] ve/module: export sysfs initstate in containers

[Vasileios Almpanis]

Reviewed-by: Vasileios Almpanis <vasileios.almpanis at virtuozzo.com>

On 6/16/26 11:28 AM, Eva Kurchatova wrote:
> Running modprobe in VE containers can't access module initstate, and
> assumes the module isn't loaded, failing the module load later.
>
> Fix by exporting /sys/module/<NAME>/initstate to VE containers.
>
> Signed-off-by: Eva Kurchatova <eva.kurchatova at virtuozzo.com>
>
> Feature: sysfs: Virtualize module initstate
> https://virtuozzo.atlassian.net/browse/VSTOR-132134
> ---
>   kernel/module/sysfs.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/kernel/module/sysfs.c b/kernel/module/sysfs.c
> index 8811ef4eb4df..e181ab4a6044 100644
> --- a/kernel/module/sysfs.c
> +++ b/kernel/module/sysfs.c
> @@ -380,7 +380,7 @@ static ssize_t module_sysfs_perm_set_ve_real(struct module *mod,
>   	 * catched since they would not see their new subdirs.
>   	 * currently the only subdir is holders.
>   	 */
> -#define VE_LONGEST_SUBDIR "holders"
> +#define VE_LONGEST_SUBDIR "initstate"
>   #define PERM_PATH_LEN (sizeof("module") + 2 + sizeof(VE_LONGEST_SUBDIR) + \
>   				MODULE_NAME_LEN + 1)
>   	char path[PERM_PATH_LEN+1];
> @@ -412,11 +412,14 @@ static int module_sysfs_ve_init(struct module *mod)
>   	err = module_sysfs_expose_dir_ve(mod, NULL);
>   	if (!err)
>   		err = module_sysfs_expose_dir_ve(mod, "holders");
> +	if (!err)
> +		err = module_sysfs_expose_dir_ve(mod, "initstate");
>   	return err;
>   }
>   
>   static void module_sysfs_ve_fini(struct module *mod)
>   {
> +	(void) module_sysfs_hide_dir_ve(mod, "initstate");
>   	(void) module_sysfs_hide_dir_ve(mod, "holders");
>   	(void) module_sysfs_hide_dir_ve(mod, NULL);
>   }

-- 
Best regards, Vasileios Almpanis
Software Developer, Virtuozzo.