+ csky-drop-definition-of-pgd_order.patch added to mm-unstable branch

+ csky-drop-definition-of-pgd_order.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: csky: drop definition of PGD_ORDER
has been added to the -mm mm-unstable branch.  Its filename is
     csky-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/csky-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@linux.ibm.com>
Subject: csky: drop definition of PGD_ORDER
Date: Sun, 3 Jul 2022 17:11:51 +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/20220703141203.147893-3-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Xuerui Wang <kernel@xen0n.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/csky/include/asm/pgalloc.h |    2 +-
 arch/csky/include/asm/pgtable.h |    3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

--- a/arch/csky/include/asm/pgalloc.h~csky-drop-definition-of-pgd_order
+++ a/arch/csky/include/asm/pgalloc.h
@@ -44,7 +44,7 @@ static inline pgd_t *pgd_alloc(struct mm
 	pgd_t *ret;
 	pgd_t *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((unsigned long *)ret);
--- a/arch/csky/include/asm/pgtable.h~csky-drop-definition-of-pgd_order
+++ a/arch/csky/include/asm/pgtable.h
@@ -18,9 +18,8 @@
 /*
  * C-SKY is two-level paging structure:
  */
-#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_PMD	1
 #define PTRS_PER_PTE	(PAGE_SIZE / sizeof(pte_t))
 
_

Patches currently in -mm which might be from rppt@linux.ibm.com 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