[merged mm-stable] mm-arm-remove-pmd_thp_or_huge.patch removed from -mm tree

[merged mm-stable] mm-arm-remove-pmd_thp_or_huge.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/arm: remove pmd_thp_or_huge()
has been removed from the -mm tree.  Its filename was
     mm-arm-remove-pmd_thp_or_huge.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Peter Xu <peterx@redhat.com>
Subject: mm/arm: remove pmd_thp_or_huge()
Date: Mon, 18 Mar 2024 16:04:03 -0400

ARM/ARM64 used to define pmd_thp_or_huge().  Now this macro is completely
redundant.  Remove it and use pmd_leaf().

Link: https://lkml.kernel.org/r/20240318200404.448346-14-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/arm/include/asm/pgtable-2level.h |    1 -
 arch/arm/include/asm/pgtable-3level.h |    1 -
 arch/arm/lib/uaccess_with_memcpy.c    |    4 ++--
 arch/arm64/include/asm/pgtable.h      |    2 --
 4 files changed, 2 insertions(+), 6 deletions(-)

--- a/arch/arm64/include/asm/pgtable.h~mm-arm-remove-pmd_thp_or_huge
+++ a/arch/arm64/include/asm/pgtable.h
@@ -517,8 +517,6 @@ static inline pmd_t pmd_mkinvalid(pmd_t
 	return pmd;
 }
 
-#define pmd_thp_or_huge(pmd)	(pmd_leaf(pmd) || pmd_trans_huge(pmd))
-
 #define pmd_write(pmd)		pte_write(pmd_pte(pmd))
 
 #define pmd_mkhuge(pmd)		(__pmd(pmd_val(pmd) & ~PMD_TABLE_BIT))
--- a/arch/arm/include/asm/pgtable-2level.h~mm-arm-remove-pmd_thp_or_huge
+++ a/arch/arm/include/asm/pgtable-2level.h
@@ -241,7 +241,6 @@ static inline pmd_t *pmd_offset(pud_t *p
  * define empty stubs for use by pin_page_for_write.
  */
 #define pmd_hugewillfault(pmd)	(0)
-#define pmd_thp_or_huge(pmd)	(0)
 
 #endif /* __ASSEMBLY__ */
 
--- a/arch/arm/include/asm/pgtable-3level.h~mm-arm-remove-pmd_thp_or_huge
+++ a/arch/arm/include/asm/pgtable-3level.h
@@ -190,7 +190,6 @@ static inline pte_t pte_mkspecial(pte_t
 #define pmd_dirty(pmd)		(pmd_isset((pmd), L_PMD_SECT_DIRTY))
 
 #define pmd_hugewillfault(pmd)	(!pmd_young(pmd) || !pmd_write(pmd))
-#define pmd_thp_or_huge(pmd)	(pmd_leaf(pmd) || pmd_trans_huge(pmd))
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 #define pmd_trans_huge(pmd)	(pmd_val(pmd) && !pmd_table(pmd))
--- a/arch/arm/lib/uaccess_with_memcpy.c~mm-arm-remove-pmd_thp_or_huge
+++ a/arch/arm/lib/uaccess_with_memcpy.c
@@ -56,10 +56,10 @@ pin_page_for_write(const void __user *_a
 	 * to see that it's still huge and whether or not we will
 	 * need to fault on write.
 	 */
-	if (unlikely(pmd_thp_or_huge(*pmd))) {
+	if (unlikely(pmd_leaf(*pmd))) {
 		ptl = &current->mm->page_table_lock;
 		spin_lock(ptl);
-		if (unlikely(!pmd_thp_or_huge(*pmd)
+		if (unlikely(!pmd_leaf(*pmd)
 			|| pmd_hugewillfault(*pmd))) {
 			spin_unlock(ptl);
 			return 0;
_

Patches currently in -mm which might be from peterx@redhat.com are

mm-userfaultfd-reset-ptes-when-close-for-wr-protected-ones.patch
mm-hugetlb-assert-hugetlb_lock-in-__hugetlb_cgroup_commit_charge.patch
mm-page_table_check-support-userfault-wr-protect-entries.patch