Patch "arm64: Implement pmdp_set_access_flags() for hardware AF/DBM" has been added to the 4.6-stable tree

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

arm64: Implement pmdp_set_access_flags() for hardware AF/DBM

to the 4.6-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-implement-pmdp_set_access_flags-for-hardware-af-dbm.patch
and it can be found in the queue-4.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Catalin Marinas <[email protected]>
Date: Thu, 5 May 2016 10:44:00 +0100
Subject: arm64: Implement pmdp_set_access_flags() for hardware AF/DBM

From: Catalin Marinas <[email protected]>

commit 282aa7051b0169991b34716f0f22d9c2f59c46c4 upstream.

The update to the accessed or dirty states for block mappings must be done atomically on hardware with support for automatic AF/DBM. The ptep_set_access_flags() function has been fixed as part of commit 66dbd6e61a52 ("arm64: Implement ptep_set_access_flags() for hardware AF/DBM"). This patch brings pmdp_set_access_flags() in line with the pte counterpart.

---
 arch/arm64/include/asm/pgtable.h |   10 ++++++++++
 1 file changed, 10 insertions(+)

@@ -531,6 +531,16 @@ extern int ptep_set_access_flags(struct
 				 unsigned long address, pte_t *ptep,
 				 pte_t entry, int dirty);
 
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#define __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS
+static inline int pmdp_set_access_flags(struct vm_area_struct *vma,
+					unsigned long address, pmd_t *pmdp,
+					pmd_t entry, int dirty)
+{
+	return ptep_set_access_flags(vma, address, (pte_t *)pmdp, pmd_pte(entry), dirty);
+}
+#endif
+
 /*
  * Atomic pte/pmd modifications.
  */

Patches currently in stable-queue which might be from [email protected] are

queue-4.6/arm64-fix-typo-in-the-pmdp_huge_get_and_clear-definition.patch queue-4.6/arm64-implement-ptep_set_access_flags-for-hardware-af-dbm.patch queue-4.6/arm64-implement-pmdp_set_access_flags-for-hardware-af-dbm.patch queue-4.6/arm64-ensure-pmd_present-returns-false-after-pmd_mknotpresent.patch