Patch "mm: drop unused pmdp_huge_get_and_clear_notify()" has been added to the 4.4-stable tree

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 <[email protected]> know about it.

From: "Kirill A. Shutemov" <[email protected]>
Date: Thu, 13 Apr 2017 14:56:23 -0700
Subject: mm: drop unused pmdp_huge_get_and_clear_notify()

From: Kirill A. Shutemov <[email protected]>

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.

---
 include/linux/mmu_notifier.h |   13 -------------
 1 file changed, 13 deletions(-)

@@ -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 [email protected] 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