From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx> Subject: mm: drop unused pmdp_huge_get_and_clear_notify() Dave noticed that after fixing MADV_DONTNEED vs. numa balancing race the last pmdp_huge_get_and_clear_notify() user is gone. Let's drop the helper. Link: http://lkml.kernel.org/r/20170306112047.24809-1-kirill.shutemov@xxxxxxxxxxxxxxx Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> Cc: Dave Hansen <dave.hansen@xxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/mmu_notifier.h | 13 ------------- 1 file changed, 13 deletions(-) diff -puN include/linux/mmu_notifier.h~mm-drop-unused-pmdp_huge_get_and_clear_notify include/linux/mmu_notifier.h --- a/include/linux/mmu_notifier.h~mm-drop-unused-pmdp_huge_get_and_clear_notify +++ a/include/linux/mmu_notifier.h @@ -394,18 +394,6 @@ static inline void mmu_notifier_mm_destr ___pud; \ }) -#define pmdp_huge_get_and_clear_notify(__mm, __haddr, __pmd) \ -({ \ - unsigned long ___haddr = __haddr & HPAGE_PMD_MASK; \ - pmd_t ___pmd; \ - \ - ___pmd = pmdp_huge_get_and_clear(__mm, __haddr, __pmd); \ - mmu_notifier_invalidate_range(__mm, ___haddr, \ - ___haddr + HPAGE_PMD_SIZE); \ - \ - ___pmd; \ -}) - /* * set_pte_at_notify() sets the pte _after_ running the notifier. * This is safe to start by updating the secondary MMUs, because the primary MMU @@ -489,7 +477,6 @@ static inline void mmu_notifier_mm_destr #define ptep_clear_flush_notify ptep_clear_flush #define pmdp_huge_clear_flush_notify pmdp_huge_clear_flush #define pudp_huge_clear_flush_notify pudp_huge_clear_flush -#define pmdp_huge_get_and_clear_notify pmdp_huge_get_and_clear #define set_pte_at_notify set_pte_at #endif /* CONFIG_MMU_NOTIFIER */ _