On Wed, Sep 4, 2019 at 1:20 PM Aleksa Sarai <cyphar@xxxxxxxxxx> wrote:
>
> A common pattern for syscall extensions is increasing the size of a
> struct passed from userspace, such that the zero-value of the new fields
> result in the old kernel behaviour (allowing for a mix of userspace and
> kernel vintages to operate on one another in most cases).
Ack, this makes the whole series (and a few unrelated system calls) cleaner.
Linus
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