tree f06d0c4f732aabe00f879dfb0a33b2d9ada3beae
parent c4e1be9ec1130fff4d691cdc0e0f9d666009f9ae
author Daniel Micay <danielmicay@gmail.com> 1499380607 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1499383471 -0700

mm/mmap.c: mark protection_map as __ro_after_init

The protection map is only modified by per-arch init code so it can be
protected from writes after the init code runs.

This change was extracted from PaX where it's part of KERNEXEC.

Link: http://lkml.kernel.org/r/20170510174441.26163-1-danielmicay@gmail.com
Signed-off-by: Daniel Micay <danielmicay@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>