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Commit c0c379e2 authored by Kirill A. Shutemov's avatar Kirill A. Shutemov Committed by Linus Torvalds
Browse files

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: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent ced10803

include/linux/mmu_notifier.h

+0 −13
Original line number Diff line number Diff line
@@ -394,18 +394,6 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm) 
	___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_destroy(struct mm_struct *mm) 
#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 */