The patch titled
Subject: mm: drop unused pmdp_huge_get_and_clear_notify()
has been added to the -mm tree. Its filename is
mm-drop-unused-pmdp_huge_get_and_clear_notify.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-drop-unused-pmdp_huge_get_and_clear_notify.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-drop-unused-pmdp_huge_get_and_clear_notify.patch
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------------------------------------------------------
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>
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 */
_
Patches currently in -mm which might be from kirill.shutemov@xxxxxxxxxxxxxxx are
rmap-fix-null-pointer-dereference-on-thp-munlocking.patch
thp-fix-another-corner-case-of-munlock-vs-thps.patch
thp-reduce-indentation-level-in-change_huge_pmd.patch
thp-fix-madv_dontneed-vs-numa-balancing-race.patch
mm-drop-unused-pmdp_huge_get_and_clear_notify.patch
thp-fix-madv_dontneed-vs-madv_free-race.patch
thp-fix-madv_dontneed-vs-madv_free-race-fix.patch
thp-fix-madv_dontneed-vs-clear-soft-dirty-race.patch
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