Re: [PATCH -next] init/main: Init jump_labels before they are used to build zonelists

[Andrew Morton]

> > 
> > Will you be able to look into that? Openrisc doesnt have jump_label
> > support, so its no issue at the moment.
> > 
> > Archs that do have it:
> > 
> > arch/arm64/Kconfig:     select HAVE_ARCH_JUMP_LABEL
> > arch/mips/Kconfig:      select HAVE_ARCH_JUMP_LABEL
> > arch/s390/Kconfig:      select HAVE_ARCH_JUMP_LABEL
> > arch/sparc/Kconfig:     select HAVE_ARCH_JUMP_LABEL if SPARC64
> > arch/tile/Kconfig:      select HAVE_ARCH_JUMP_LABEL
> > arch/x86/Kconfig:       select HAVE_ARCH_JUMP_LABEL
> > arch/arm/Kconfig:       select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
> > arch/powerpc/Kconfig:   select HAVE_ARCH_JUMP_LABEL
> > 
> > I looked at a few (arm, tile) and I dont see their arch_jump_label_transform*
> > implementations depending on global state like ideal_nops from x86. They
> > should be ok.
> 
> Thanks, I'll try.
> 
> > If no time, Should you change your patch to not use static keys for
> > build_all_zonelists at least?
> 
> Yes that would be uglier but possible if I find issues or I'm not
> confident enough with the auditing...

We could just revert f5adbdff6a1c40e19 ("mm, page_alloc: convert
page_group_by_mobility_disable to static key")?