Re: [PATCH v4 3/4] sched_setattr: switch to copy_struct_from_user()

On Tue, Oct 01, 2019 at 11:10:54AM +1000, Aleksa Sarai wrote:

The change is very straightforward, and helps unify the syscall
interface for struct-from-userspace syscalls. Ideally we could also
unify sched_getattr(2)-style syscalls as well, but unfortunately the
correct semantics for such syscalls are much less clear (see [1] for
more detail). In future we could come up with a more sane idea for how
the syscall interface should look.

[1]: commit 1251201c0d34 ("sched/core: Fix uclamp ABI bug, clean up and
     robustify sched_read_attr() ABI logic and code")

Reviewed-by: Kees Cook <redacted>
Signed-off-by: Aleksa Sarai <redacted>

Reviewed-by: Christian Brauner <redacted>