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    Subject[tip:x86/boot] x86/mm: Mark __pgtable_l5_enabled __initdata
    Commit-ID:  e4e961e36f063484c48bed919013c106d178995d
    Gitweb: https://git.kernel.org/tip/e4e961e36f063484c48bed919013c106d178995d
    Author: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    AuthorDate: Fri, 18 May 2018 13:35:28 +0300
    Committer: Ingo Molnar <mingo@kernel.org>
    CommitDate: Sat, 19 May 2018 11:56:58 +0200

    x86/mm: Mark __pgtable_l5_enabled __initdata

    __pgtable_l5_enabled shouldn't be needed after system has booted.
    All preparation is done. We can now mark it as __initdata.

    Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
    Cc: Hugh Dickins <hughd@google.com>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Link: http://lkml.kernel.org/r/20180518103528.59260-8-kirill.shutemov@linux.intel.com
    Signed-off-by: Ingo Molnar <mingo@kernel.org>
    ---
    arch/x86/kernel/head64.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
    index 8047379e575a..a21d6ace648e 100644
    --- a/arch/x86/kernel/head64.c
    +++ b/arch/x86/kernel/head64.c
    @@ -44,7 +44,7 @@ static unsigned int __initdata next_early_pgt;
    pmdval_t early_pmd_flags = __PAGE_KERNEL_LARGE & ~(_PAGE_GLOBAL | _PAGE_NX);

    #ifdef CONFIG_X86_5LEVEL
    -unsigned int __pgtable_l5_enabled __ro_after_init;
    +unsigned int __pgtable_l5_enabled __initdata;
    unsigned int pgdir_shift __ro_after_init = 39;
    EXPORT_SYMBOL(pgdir_shift);
    unsigned int ptrs_per_p4d __ro_after_init = 1;
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