[CRIU] [PATCH 02/27] seccomp: Fetch seccomp flags if kernel provides

[Cyrill Gorcunov]

On Thu, Mar 01, 2018 at 02:18:40PM +0000, Dmitry Safonov wrote:
> Hi Cyrill,
> 
> 
> Should we possibly introduce kdat feature for SECCOMP_GET_METADATA?
> That will reflect the usual policy for kernel features and have two pros:
> 1. We will not make unneeded ptrace() syscalls on pre-v4.16 kernel that
> don't support this kind of request.
> 2. Someone interested may check it with `criu check --feature <...>`
> 
> I don't mind, but it looks to me that we better have the same policy applied
> for all new kernel features, having them in kdat..

Yes, I though of making it on top of the series. Together with new kcmp(FILTER)
or something which would allow us to drop memcmp completely.

	Cyrill