[PATCH v2 0/2] mm: PAGE_KERNEL_* fallbacks

From: Luis R. Rodriguez
Date: Wed May 09 2018 - 21:45:08 EST


While dusting out the firmware loader closet I spotted a PAGE_KERNEL_*
fallback hack. This hurts my eyes, and it should also be blinding
others. Turns out we have other PAGE_KERNEL_* fallback hacks in
other places.

This moves them to asm-generic, and keeps track of architectures which
need some love or review. At least 0-day was happy with the changes.

Matthew Wilcox did put together a PAGE_KERNEL_RO patch for ia64, that
needs review and testing, and if it goes well it should be merged.

Luis R. Rodriguez (2):
mm: provide a fallback for PAGE_KERNEL_RO for architectures
mm: provide a fallback for PAGE_KERNEL_EXEC for architectures

drivers/base/firmware_loader/fallback.c | 5 ----
include/asm-generic/pgtable.h | 36 +++++++++++++++++++++++++
mm/nommu.c | 4 ---
mm/vmalloc.c | 4 ---
4 files changed, 36 insertions(+), 13 deletions(-)

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2.17.0