[PATCH 12/18] kernel: add ksys_personality()

[Mark Rutland]

On Mon, May 14, 2018 at 05:07:56AM -0700, Christoph Hellwig wrote:
> On Mon, May 14, 2018 at 10:46:34AM +0100, Mark Rutland wrote:
> > Using this helper allows us to avoid the in-kernel call to the
> > sys_personality() syscall. The ksys_ prefix denotes that this function
> > is meant as a drop-in replacement for the syscall. In particular, it
> > uses the same calling convention as sys_personality().
> > 
> > This is necessary to enable conversion of arm64's syscall handling to
> > use pt_regs wrappers.
> 
> Plese just opencode the trivial sys_personality logic instead.

Sure, I'll make that a static inline in <linux/syscalls.h> as with
ksys_close() and friends.

Thanks,
Mark.