Re: [PATCH v3 4/5] kcmp: add KCMP_FILE_PRIVATE_DATA

From: Andy Lutomirski
Date: Wed Sep 30 2015 - 14:26:27 EST


On Wed, Sep 30, 2015 at 11:13 AM, Tycho Andersen
<tycho.andersen@xxxxxxxxxxxxx> wrote:
> This command allows comparing the underling private data of two fds. This
> is useful e.g. to find out if a seccomp filter is inherited, since struct
> seccomp_filter are unique across tasks and are the private_data seccomp
> fds.

This is very implementation-specific and may have nasty ABI
consequences far outside seccomp. Let's do something specific to
seccomp and/or eBPF.

--Andy
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