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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@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kirill A. Shutemov 2017-04-13 14:56:23 -07:00 committed by Linus Torvalds
parent ced108037c
commit c0c379e293
1 changed files with 0 additions and 13 deletions
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13
include/linux/mmu_notifier.h
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@ -394,18 +394,6 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm)
___pud; \ ___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. * 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 * This is safe to start by updating the secondary MMUs, because the primary MMU
@ -489,7 +477,6 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm)
#define ptep_clear_flush_notify ptep_clear_flush #define ptep_clear_flush_notify ptep_clear_flush
#define pmdp_huge_clear_flush_notify pmdp_huge_clear_flush #define pmdp_huge_clear_flush_notify pmdp_huge_clear_flush
#define pudp_huge_clear_flush_notify pudp_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 #define set_pte_at_notify set_pte_at
#endif /* CONFIG_MMU_NOTIFIER */ #endif /* CONFIG_MMU_NOTIFIER */