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Subject[PATCH v4 0/3] arm64: put objects into proper sections
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This series tries to put some objects into proper sections.

patch1 puts alloc_vectors_page() into .init section. This is a clean up
patch.
patch2 constify vm_special_mapping used for aarch32 vectors page.
patch3 apply __ro_after_init to some objects

Previously I only want to mark vdso_pages, vdso_spec, vectors_page and
cpu_ops as __read_mostly for performance reason. Then inspired by
Kees's patch[1], I think __ro_after_init is better.

[1] http://www.spinics.net/lists/arm-kernel/msg523188.html

Changes since v3:
- add <linux/cache.h> for remaining .c files. Thank Mark.
- make vdso.c headers sorted. Suggested by Mark.
- remove patch3 in v2 which turns out a style issue, the usage is
correct.

Changes since v2:
- include <linux/cache.h> for __ro_after_init, thank Mark's suggestions
- make vdso_spec[0].pages and vdso_spec[1].pages assignment style
consistent, thank Mark for pointing it out.

Changes since v1:
- use __ro_after_init instead of __read_mostly
- find more objects to be suitable for __ro_after_init
- add one more patch to fix the incorrect placement of __initdata and
__read_mostly



Jisheng Zhang (3):
arm64: vdso: add __init section marker to alloc_vectors_page
arm64: vdso: constify vm_special_mapping used for aarch32 vectors page
arm64: apply __ro_after_init to some objects

arch/arm64/kernel/cpu_ops.c | 3 ++-
arch/arm64/kernel/kaslr.c | 3 ++-
arch/arm64/kernel/vdso.c | 34 +++++++++++++++++-----------------
arch/arm64/mm/dma-mapping.c | 3 ++-
arch/arm64/mm/init.c | 5 +++--
arch/arm64/mm/mmu.c | 3 ++-
6 files changed, 28 insertions(+), 23 deletions(-)

--
2.8.1

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