This patch set implements CONFIG_DEBUG_RODATA on Powerpc32
after fixing a few issues related to kernel code page protection.
The second patch of the set was initially submitted as standalone.
This new version takes into account Michael comments. It is part
of the set because it is now based on function change_page_attr()
Christophe Leroy (3):
powerpc/mm: Ensure change_page_attr() doesn't invalidate pinned TLBs
powerpc/mm: Fix kernel RAM protection after freeing unused memory on
PPC32
powerpc/mm: Implement CONFIG_DEBUG_RODATA on PPC32
arch/powerpc/Kconfig.debug | 11 +++++++
arch/powerpc/include/asm/pgtable.h | 8 ++++++
arch/powerpc/kernel/ftrace.c | 2 ++
arch/powerpc/mm/init_32.c | 3 +-
arch/powerpc/mm/mem.c | 1 +
arch/powerpc/mm/mmu_decl.h | 3 ++
arch/powerpc/mm/pgtable_32.c | 59 +++++++++++++++++++++++++++++++++-----
7 files changed, 79 insertions(+), 8 deletions(-)
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2.12.0
