The patch titled
Subject: nios2: drop definition of PGD_ORDER
has been added to the -mm mm-unstable branch. Its filename is
nios2-drop-definition-of-pgd_order.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/nios2-drop-definition-of-pgd_order.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Subject: nios2: drop definition of PGD_ORDER
Date: Sun, 3 Jul 2022 17:11:57 +0300
This is the order of the page table allocation, not the order of a PGD.
Since its always hardwired to 0, simply drop it.
Link: https://lkml.kernel.org/r/20220703141203.147893-9-rppt@xxxxxxxxxx
Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Dinh Nguyen <dinguyen@xxxxxxxxxx>
Cc: Guo Ren <guoren@xxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: Huacai Chen <chenhuacai@xxxxxxxxxx>
Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
Cc: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Cc: Max Filippov <jcmvbkbc@xxxxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Cc: Xuerui Wang <kernel@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/nios2/include/asm/pgtable.h | 4 +---
arch/nios2/mm/init.c | 3 +--
arch/nios2/mm/pgtable.c | 2 +-
3 files changed, 3 insertions(+), 6 deletions(-)
--- a/arch/nios2/include/asm/pgtable.h~nios2-drop-definition-of-pgd_order
+++ a/arch/nios2/include/asm/pgtable.h
@@ -52,9 +52,7 @@ struct mm_struct;
#define PAGE_COPY MKP(0, 0, 1)
-#define PGD_ORDER 0
-
-#define PTRS_PER_PGD ((PAGE_SIZE << PGD_ORDER) / sizeof(pgd_t))
+#define PTRS_PER_PGD (PAGE_SIZE / sizeof(pgd_t))
#define PTRS_PER_PTE (PAGE_SIZE / sizeof(pte_t))
#define USER_PTRS_PER_PGD \
--- a/arch/nios2/mm/init.c~nios2-drop-definition-of-pgd_order
+++ a/arch/nios2/mm/init.c
@@ -78,8 +78,7 @@ void __init mmu_init(void)
flush_tlb_all();
}
-#define __page_aligned(order) __aligned(PAGE_SIZE << (order))
-pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned(PGD_ORDER);
+pgd_t swapper_pg_dir[PTRS_PER_PGD] __aligned(PAGE_SIZE);
pte_t invalid_pte_table[PTRS_PER_PTE] __aligned(PAGE_SIZE);
static struct page *kuser_page[1];
--- a/arch/nios2/mm/pgtable.c~nios2-drop-definition-of-pgd_order
+++ a/arch/nios2/mm/pgtable.c
@@ -54,7 +54,7 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
{
pgd_t *ret, *init;
- ret = (pgd_t *) __get_free_pages(GFP_KERNEL, PGD_ORDER);
+ ret = (pgd_t *) __get_free_page(GFP_KERNEL);
if (ret) {
init = pgd_offset(&init_mm, 0UL);
pgd_init(ret);
_
Patches currently in -mm which might be from rppt@xxxxxxxxxxxxx are
csky-drop-definition-of-pte_order.patch
csky-drop-definition-of-pgd_order.patch
mips-rename-pud_order-to-pud_table_order.patch
mips-drop-definitions-of-pte_order.patch
mips-rename-pgd_order-to-pgd_table_order.patch
nios2-drop-definition-of-pte_order.patch
nios2-drop-definition-of-pgd_order.patch
loongarch-drop-definition-of-pte_order.patch
loongarch-drop-definition-of-pmd_order.patch
loongarch-drop-definition-of-pud_order.patch
loongarch-drop-definition-of-pgd_order.patch
parisc-rename-pgd_order-to-pgd_table_order.patch
xtensa-drop-definition-of-pgd_order.patch
