From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Andrea Arcangeli <aarcange@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Dave Hansen <dave.hansen@intel.com>
Subject: [PATCH] mm: drop unused pmdp_huge_get_and_clear_notify()
Date: Mon, 6 Mar 2017 14:20:47 +0300 [thread overview]
Message-ID: <20170306112047.24809-1-kirill.shutemov@linux.intel.com> (raw)
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.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
---
include/linux/mmu_notifier.h | 13 -------------
1 file changed, 13 deletions(-)
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index 51891fb0d3ce..c91b3bcd158f 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -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 */
--
2.11.0
--
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reply other threads:[~2017-03-06 11:20 UTC|newest]
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