Re: [RFC PATCH 01/35] syscalls: define goal to not call sys_xyzzy() from within the kernel

[Andy Lutomirski]

On Sun, Mar 11, 2018 at 10:55 AM, Dominik Brodowski
<linux@xxxxxxxxxxxxxxxxxxxx> wrote:
> The syscall entry points to the kernel defined by SYSCALL_DEFINEx()
> and COMPAT_SYSCALL_DEFINEx() should only be called from userspace
> through kernel entry points, but not from the kernel itself. This
> will allow cleanups and optimizations to the entry paths *and* to
> the parts of the kernel code which currently need to pretend to be
> userspace in order to make use of syscalls.
>

> +
> +/*
> + * The kernel should not use call syscalls (i.e., sys_xyzyyz()) directly.
> + * Instead, use one of the following functions which work equivalent to
> + * the syscall they are named for.

"Instead, use one of the functions which work equivalently, e.g. do_xysyyz()"