mm/mmap.c: mark protection_map as __ro_after_init

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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>

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Daniel Micay 2017-07-06 15:36:47 -07:00 • committed by Linus Torvalds

parent c4e1be9ec1

commit ac34ceaf1c

1 changed files with 1 additions and 1 deletions

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mm/mmap.c

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