The patch titled
Subject: m68k: mark PMD folded and expose number of page table levels
has been added to the -mm tree. Its filename is
m68k-mark-pmd-folded-and-expose-number-of-page-table-levels.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/m68k-mark-pmd-folded-and-expose-number-of-page-table-levels.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/m68k-mark-pmd-folded-and-expose-number-of-page-table-levels.patch
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From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Subject: m68k: mark PMD folded and expose number of page table levels
We would want to use number of page table level to define mm_struct.
Let's expose it as CONFIG_PGTABLE_LEVELS.
Core mm expects __PAGETABLE_{PUD,PMD}_FOLDED to be defined if these page
table levels folded.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Tested-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/m68k/Kconfig | 4 ++++
arch/m68k/include/asm/pgtable_mm.h | 2 ++
2 files changed, 6 insertions(+)
diff -puN arch/m68k/Kconfig~m68k-mark-pmd-folded-and-expose-number-of-page-table-levels arch/m68k/Kconfig
--- a/arch/m68k/Kconfig~m68k-mark-pmd-folded-and-expose-number-of-page-table-levels
+++ a/arch/m68k/Kconfig
@@ -67,6 +67,10 @@ config HZ
default 1000 if CLEOPATRA
default 100
+config PGTABLE_LEVELS
+ default 2 if SUN3 || COLDFIRE
+ default 3
+
source "init/Kconfig"
source "kernel/Kconfig.freezer"
diff -puN arch/m68k/include/asm/pgtable_mm.h~m68k-mark-pmd-folded-and-expose-number-of-page-table-levels arch/m68k/include/asm/pgtable_mm.h
--- a/arch/m68k/include/asm/pgtable_mm.h~m68k-mark-pmd-folded-and-expose-number-of-page-table-levels
+++ a/arch/m68k/include/asm/pgtable_mm.h
@@ -54,10 +54,12 @@
*/
#ifdef CONFIG_SUN3
#define PTRS_PER_PTE 16
+#define __PAGETABLE_PMD_FOLDED
#define PTRS_PER_PMD 1
#define PTRS_PER_PGD 2048
#elif defined(CONFIG_COLDFIRE)
#define PTRS_PER_PTE 512
+#define __PAGETABLE_PMD_FOLDED
#define PTRS_PER_PMD 1
#define PTRS_PER_PGD 1024
#else
_
Patches currently in -mm which might be from kirill.shutemov@xxxxxxxxxxxxxxx are
mm-rename-foll_mlock-to-foll_populate.patch
mm-rename-__mlock_vma_pages_range-to-populate_vma_page_range.patch
mm-move-gup-posix-mlock-error-conversion-out-of-__mm_populate.patch
mm-move-mm_populate-related-code-to-mm-gupc.patch
mm-incorporate-zero-pages-into-transparent-huge-pages.patch
mm-incorporate-zero-pages-into-transparent-huge-pages-fix.patch
alpha-expose-number-of-page-table-levels-on-kconfig-level.patch
arm64-expose-number-of-page-table-levels-on-kconfig-level.patch
arm-expose-number-of-page-table-levels-on-kconfig-level.patch
frv-mark-pud-and-pmd-folded.patch
ia64-expose-number-of-page-table-levels-on-kconfig-level.patch
m32r-mark-pmd-folded.patch
m68k-mark-pmd-folded-and-expose-number-of-page-table-levels.patch
mips-expose-number-of-page-table-levels-on-kconfig-level.patch
mn10300-mark-pud-and-pmd-folded.patch
parisc-expose-number-of-page-table-levels-on-kconfig-level.patch
powerpc-expose-number-of-page-table-levels-on-kconfig-level.patch
s390-expose-number-of-page-table-levels.patch
sh-expose-number-of-page-table-levels.patch
sparc-expose-number-of-page-table-levels.patch
tile-expose-number-of-page-table-levels.patch
um-expose-number-of-page-table-levels.patch
x86-expose-number-of-page-table-levels-on-kconfig-level.patch
mm-define-default-pgtable_levels-to-two.patch
mm-do-not-add-nr_pmds-into-mm_struct-if-pmd-is-folded.patch
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