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x86/alternatives: Introduce init_or_livepatch_ro_after_init
... and use it for ideal_nops and toolchain_nops_are_ideal; both of which are invariant after arch_init_ideal_nops() has run. No functional change. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Jan Beulich <jbeulich@suse.com>
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@@ -47,7 +47,7 @@ static const unsigned char p6_nops[] init_or_livepatch_const = {
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};
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#endif
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static const unsigned char *ideal_nops init_or_livepatch_data = p6_nops;
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static const unsigned char *init_or_livepatch_ro_after_init ideal_nops = p6_nops;
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#ifdef HAVE_AS_NOPS_DIRECTIVE
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@@ -56,7 +56,7 @@ asm ( ".pushsection .init.rodata, \"a\", @progbits\n\t"
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"toolchain_nops: .nops " __stringify(ASM_NOP_MAX) "\n\t"
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".popsection\n\t");
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extern char toolchain_nops[ASM_NOP_MAX];
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static bool init_or_livepatch_read_mostly toolchain_nops_are_ideal;
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static bool init_or_livepatch_ro_after_init toolchain_nops_are_ideal;
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#else
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# define toolchain_nops_are_ideal false
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@@ -28,14 +28,16 @@
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# define init_or_livepatch_const
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# define init_or_livepatch_constrel
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# define init_or_livepatch_data
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# define init_or_livepatch_read_mostly __read_mostly
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# define init_or_livepatch_read_mostly __read_mostly
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# define init_or_livepatch_ro_after_init __ro_after_init
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# define init_or_livepatch
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#else /* !CONFIG_LIVEPATCH */
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# define init_or_livepatch_const __initconst
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# define init_or_livepatch_constrel __initconstrel
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# define init_or_livepatch_data __initdata
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# define init_or_livepatch_read_mostly __initdata
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# define init_or_livepatch __init
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# define init_or_livepatch_const __initconst
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# define init_or_livepatch_constrel __initconstrel
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# define init_or_livepatch_data __initdata
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# define init_or_livepatch_read_mostly __initdata
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# define init_or_livepatch_ro_after_init __initdata
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# define init_or_livepatch __init
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#endif /* !CONFIG_LIVEPATCH */
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/* These macros are used to mark some functions or
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