[merged mm-stable] mm-pgtable-introduce-generic-pagetable_dtor_free.patch removed from -mm tree

[Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>]

The quilt patch titled
     Subject: mm: pgtable: introduce generic pagetable_dtor_free()
has been removed from the -mm tree.  Its filename was
     mm-pgtable-introduce-generic-pagetable_dtor_free.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: Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx>
Subject: mm: pgtable: introduce generic pagetable_dtor_free()
Date: Wed, 8 Jan 2025 14:57:33 +0800

The pte_free(), pmd_free(), __pud_free() and __p4d_free() in
asm-generic/pgalloc.h and the generic __tlb_remove_table() are basically
the same, so let's introduce pagetable_dtor_free() to deduplicate them.

In addition, the pagetable_dtor_free() in s390 does the same thing, so
let's s390 also calls generic pagetable_dtor_free().

Link: https://lkml.kernel.org/r/1663a0565aca881d1338ceb7d1db4aa9c333abd6.1736317725.git.zhengqi.arch@xxxxxxxxxxxxx
Signed-off-by: Qi Zheng <zhengqi.arch@xxxxxxxxxxxxx>
Suggested-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Reviewed-by: Kevin Brodsky <kevin.brodsky@xxxxxxx>
Acked-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>	[s390]
Cc: Alexandre Ghiti <alex@xxxxxxxx>
Cc: Alexandre Ghiti <alexghiti@xxxxxxxxxxxx>
Cc: Andreas Larsson <andreas@xxxxxxxxxxx>
Cc: Aneesh Kumar K.V (Arm) <aneesh.kumar@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Jann Horn <jannh@xxxxxxxxxx>
Cc: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
Cc: Muchun Song <muchun.song@xxxxxxxxx>
Cc: Nicholas Piggin <npiggin@xxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Ryan Roberts <ryan.roberts@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Vishal Moola (Oracle) <vishal.moola@xxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Yu Zhao <yuzhao@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 arch/s390/mm/pgalloc.c        |    6 ------
 include/asm-generic/pgalloc.h |   12 ++++--------
 include/asm-generic/tlb.h     |    3 +--
 include/linux/mm.h            |    6 ++++++
 4 files changed, 11 insertions(+), 16 deletions(-)

--- a/arch/s390/mm/pgalloc.c~mm-pgtable-introduce-generic-pagetable_dtor_free
+++ a/arch/s390/mm/pgalloc.c
@@ -180,12 +180,6 @@ unsigned long *page_table_alloc(struct m
 	return table;
 }
 
-static void pagetable_dtor_free(struct ptdesc *ptdesc)
-{
-	pagetable_dtor(ptdesc);
-	pagetable_free(ptdesc);
-}
-
 void page_table_free(struct mm_struct *mm, unsigned long *table)
 {
 	struct ptdesc *ptdesc = virt_to_ptdesc(table);
--- a/include/asm-generic/pgalloc.h~mm-pgtable-introduce-generic-pagetable_dtor_free
+++ a/include/asm-generic/pgalloc.h
@@ -109,8 +109,7 @@ static inline void pte_free(struct mm_st
 {
 	struct ptdesc *ptdesc = page_ptdesc(pte_page);
 
-	pagetable_dtor(ptdesc);
-	pagetable_free(ptdesc);
+	pagetable_dtor_free(ptdesc);
 }
 
 
@@ -153,8 +152,7 @@ static inline void pmd_free(struct mm_st
 	struct ptdesc *ptdesc = virt_to_ptdesc(pmd);
 
 	BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
-	pagetable_dtor(ptdesc);
-	pagetable_free(ptdesc);
+	pagetable_dtor_free(ptdesc);
 }
 #endif
 
@@ -202,8 +200,7 @@ static inline void __pud_free(struct mm_
 	struct ptdesc *ptdesc = virt_to_ptdesc(pud);
 
 	BUG_ON((unsigned long)pud & (PAGE_SIZE-1));
-	pagetable_dtor(ptdesc);
-	pagetable_free(ptdesc);
+	pagetable_dtor_free(ptdesc);
 }
 
 #ifndef __HAVE_ARCH_PUD_FREE
@@ -248,8 +245,7 @@ static inline void __p4d_free(struct mm_
 	struct ptdesc *ptdesc = virt_to_ptdesc(p4d);
 
 	BUG_ON((unsigned long)p4d & (PAGE_SIZE-1));
-	pagetable_dtor(ptdesc);
-	pagetable_free(ptdesc);
+	pagetable_dtor_free(ptdesc);
 }
 
 #ifndef __HAVE_ARCH_P4D_FREE
--- a/include/asm-generic/tlb.h~mm-pgtable-introduce-generic-pagetable_dtor_free
+++ a/include/asm-generic/tlb.h
@@ -213,8 +213,7 @@ static inline void __tlb_remove_table(vo
 {
 	struct ptdesc *ptdesc = (struct ptdesc *)table;
 
-	pagetable_dtor(ptdesc);
-	pagetable_free(ptdesc);
+	pagetable_dtor_free(ptdesc);
 }
 #endif
 
--- a/include/linux/mm.h~mm-pgtable-introduce-generic-pagetable_dtor_free
+++ a/include/linux/mm.h
@@ -3001,6 +3001,12 @@ static inline void pagetable_dtor(struct
 	lruvec_stat_sub_folio(folio, NR_PAGETABLE);
 }
 
+static inline void pagetable_dtor_free(struct ptdesc *ptdesc)
+{
+	pagetable_dtor(ptdesc);
+	pagetable_free(ptdesc);
+}
+
 static inline bool pagetable_pte_ctor(struct ptdesc *ptdesc)
 {
 	struct folio *folio = ptdesc_folio(ptdesc);
_

Patches currently in -mm which might be from zhengqi.arch@xxxxxxxxxxxxx are