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x86: Reduce memory usage for large count NR_CPUs fixup V2

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  1. v1 Latest4 patches 0 repliesNew

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#Subject and filesSizeRepliesApplied
1/4x86: Change size of node ids from u8 to s16 fixup V2arch/x86/Kconfig arch/x86/mm/numa_64.c include/asm-x86/mmzone_64.h +2 more+16 -150 replies
2/4x86: Change NR_CPUS arrays in numa_64 fixup V2arch/x86/kernel/setup64.c arch/x86/kernel/smpboot_64.c arch/x86/mm/numa_64.c +2 more+66 -410 replies
3/4x86: Change bios_cpu_apicid to percpu data variable fixup V2arch/x86/kernel/apic_64.c arch/x86/kernel/setup64.c arch/x86/kernel/setup_64.c+7 -30 replies
4/4x86: Add debug of invalid per_cpu map accesses fixup V2arch/x86/Kconfig.debug arch/x86/mm/numa_64.c include/asm-x86/topology.h+25 -20 replies

Reviews trailers per patch

3 of 4 patches have a Reviewed-by or Acked-by.

PatchChristoph Lameter
1/4R-b
2/4R-b
3/4R-b
4/4

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.

Read the v1 thread

Cover letter [PATCH 0/4] x86: Reduce memory usage for large count NR_CPUs fixup V2

Fixup change NR_CPUS patchset by rebasing on 2.6.24-rc8-mm1 (from 2.6.24-rc6-mm1) and adding changes suggested by reviews.

Based on 2.6.24-rc8-mm1

Note there are two versions of this patchset:
- 2.6.24-rc8-mm1
- 2.6.24-rc8-mm1 + latest (08/1/21) git-x86

---
Fixup-V2:
- pulled the SMP_MAX patch as it's not strictly needed and some more work on local cpumask_t variables needs to be done before NR_CPUS is allowed to increase.

- changes to X86_32 have been removed (except for build errors)

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