This is a note to let you know that I've just added the patch titled
mm: drop unused pmdp_huge_get_and_clear_notify()
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mm-drop-unused-pmdp_huge_get_and_clear_notify.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c0c379e2931b05facef538e53bf3b21f283d9a0b Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Date: Thu, 13 Apr 2017 14:56:23 -0700
Subject: mm: drop unused pmdp_huge_get_and_clear_notify()
From: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
commit c0c379e2931b05facef538e53bf3b21f283d9a0b upstream.
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>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
[jwang: adjust context for 4.4]
Signed-off-by: Jack Wang <jinpu.wang@xxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/linux/mmu_notifier.h | 13 -------------
1 file changed, 13 deletions(-)
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -381,18 +381,6 @@ static inline void mmu_notifier_mm_destr
___pmd; \
})
-#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
@@ -475,7 +463,6 @@ static inline void mmu_notifier_mm_destr
#define pmdp_clear_young_notify pmdp_test_and_clear_young
#define ptep_clear_flush_notify ptep_clear_flush
#define pmdp_huge_clear_flush_notify pmdp_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 stable-queue which might be from kirill.shutemov@xxxxxxxxxxxxxxx are
queue-4.4/mm-drop-unused-pmdp_huge_get_and_clear_notify.patch
queue-4.4/thp-fix-madv_dontneed-vs.-numa-balancing-race.patch
queue-4.4/thp-reduce-indentation-level-in-change_huge_pmd.patch