Patch "arm64: Fix typo in the pmdp_huge_get_and_clear() definition" has been added to the 4.4-stable tree

Patch "arm64: Fix typo in the pmdp_huge_get_and_clear() definition" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    arm64: Fix typo in the pmdp_huge_get_and_clear() definition

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:
     arm64-fix-typo-in-the-pmdp_huge_get_and_clear-definition.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@vger.kernel.org> know about it.


>From 911f56eeb87ee378f5e215469268a7a2f68a5a8a Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Thu, 5 May 2016 10:43:59 +0100
Subject: arm64: Fix typo in the pmdp_huge_get_and_clear() definition

From: Catalin Marinas <catalin.marinas@arm.com>

commit 911f56eeb87ee378f5e215469268a7a2f68a5a8a upstream.

With hardware AF/DBM support, pmd modifications (transparent huge pages)
should be performed atomically using load/store exclusive. The initial
patches defined the get-and-clear function and __HAVE_ARCH_* macro
without the "huge" word, leaving the pmdp_huge_get_and_clear() to the
default, non-atomic implementation.

Fixes: 2f4b829c625e ("arm64: Add support for hardware updates of the access and dirty pte bits")
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm64/include/asm/pgtable.h |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -590,9 +590,9 @@ static inline pte_t ptep_get_and_clear(s
 }
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-#define __HAVE_ARCH_PMDP_GET_AND_CLEAR
-static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
-				       unsigned long address, pmd_t *pmdp)
+#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
+static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
+					    unsigned long address, pmd_t *pmdp)
 {
 	return pte_pmd(ptep_get_and_clear(mm, address, (pte_t *)pmdp));
 }


Patches currently in stable-queue which might be from catalin.marinas@arm.com are

queue-4.4/arm64-fix-typo-in-the-pmdp_huge_get_and_clear-definition.patch
queue-4.4/arm64-implement-ptep_set_access_flags-for-hardware-af-dbm.patch
queue-4.4/arm64-implement-pmdp_set_access_flags-for-hardware-af-dbm.patch
queue-4.4/arm64-ensure-pmd_present-returns-false-after-pmd_mknotpresent.patch