On Thu, Nov 19, 2020 at 01:38:27PM +0100, Peter Zijlstra wrote:

On Tue, Nov 17, 2020 at 10:28:33PM -0500, Gabriel Krisman Bertazi wrote:

quoted

Gabriel Krisman Bertazi (7):
  x86: vdso: Expose sigreturn address on vdso to the kernel
  signal: Expose SYS_USER_DISPATCH si_code type
  kernel: Implement selective syscall userspace redirection
  entry: Support Syscall User Dispatch on common syscall entry
  selftests: Add kselftest for syscall user dispatch
  selftests: Add benchmark for syscall user dispatch
  docs: Document Syscall User Dispatch

Aside from the one little nit this looks good to me.

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>

Agreed, and thank you Gabriel for the SYSCALL_WORK series too. :) That's
so nice to have!

-- 
Kees Cook