[Devel] [PATCH vz7] modules: allow NFS modules autoload in containers

[Stanislav Kinsburskiy]

28.12.2016 14:49, Dmitry Safonov пишет:
> On 12/28/2016 04:37 PM, Stanislav Kinsburskiy wrote:
>> Otherwise migration can fail
>>
>> https://jira.sw.ru/browse/PSBM-58178
>>
>> Signed-off-by: Stanislav Kinsburskiy <skinsbursky at virtuozzo.com>
>
> Just for check - these modules should be loaded on sys_mount()?
> In this case it should be prefixed with 'fs-'.
> Look: do_new_mount() calls get_fs_type() which does request_module():
> >    if (!fs && (request_module("fs-%.*s", len, name) == 0))
>
> Otherwise, it will fail to autoload these modules on mount().
> So, what is the expected call-path for autoloading nfs modules?
>

We shouldn't really care, because modules load is performed by modprobe 
via UMH,
and looks like modprobe handles these types of module requests properly.
I tested the patch, it works.

>> ---
>>  kernel/kmod.c |    4 ++++
>>  1 file changed, 4 insertions(+)
>>
>> diff --git a/kernel/kmod.c b/kernel/kmod.c
>> index 63748d4..5253cae 100644
>> --- a/kernel/kmod.c
>> +++ b/kernel/kmod.c
>> @@ -422,6 +422,10 @@ static const char * const ve0_allowed_mod[] = {
>>
>>      "rtnl-link-dummy",
>>      "rtnl-link-vxlan",
>> +
>> +    /* NFS */
>> +    "nfsv3",
>> +    "nfsv4",
>>  };
>>
>>  /*
>>
>