Re: [PATCH v2 1/2] syscall_user_dispatch: Make it configurable in Kconfig
From: Gregory Price
Date: Sat Jul 04 2026 - 11:29:16 EST
On Sat, Jul 04, 2026 at 04:22:20PM +0100, Matthew Wilcox wrote:
> On Fri, Jul 03, 2026 at 09:58:58PM -0400, Gregory Price wrote:
> > +config SYSCALL_USER_DISPATCH
> > + bool "Syscall User Dispatch"
> > + depends on GENERIC_ENTRY
> > + default y
> > + help
> > + Syscall User Dispatch lets a thread have its own system calls outside
> > + an allowed IP address range to be intercepted and redirected to a
> > + userspace signal handler.
>
> I was very confused when I read this. IP expands to Internet Protocol
> long before it gets to Instruction Pointer in my brain.
Hah, fair, i was just going with tglx's [1] explanation.
https://lore.kernel.org/all/87a4s8m69c.ffs@fw13/