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    x86/mm: Drop unneeded __always_inline for p4d page table helpers · b8c1e429
    Kirill A. Shutemov 提交于
    This reverts the following commits:
    
      1ea66554 ("x86/mm: Mark p4d_offset() __always_inline")
      046c0dbe ("x86: Mark native_set_p4d() as __always_inline")
    
    p4d_offset(), native_set_p4d() and native_p4d_clear() were marked
    __always_inline in attempt to move __pgtable_l5_enabled into __initdata
    section.
    
    It was required as KASAN initialization code is a user of
    USE_EARLY_PGTABLE_L5, so all pgtable_l5_enabled() translated to
    __pgtable_l5_enabled there. This includes pgtable_l5_enabled() called
    from inline p4d helpers.
    
    If compiler would decided to not inline these p4d helpers, but leave
    them standalone, we end up with section mismatch.
    
    We don't need __always_inline here anymore. __pgtable_l5_enabled moved
    back to be __ro_after_init. See the following commit:
    
      51be1335 ("Revert "x86/mm: Mark __pgtable_l5_enabled __initdata"")
    Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com>
    Cc: Arnd Bergmann <arnd@arndb.de>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Link: http://lkml.kernel.org/r/20180626100341.49910-1-kirill.shutemov@linux.intel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
    b8c1e429
pgtable_64.h 8.9 KB