+ mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix.patch added to mm-unstable branch

+ mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix
has been added to the -mm mm-unstable branch.  Its filename is
     mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days

------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix
Date: Fri Aug 22 06:45:39 PM PDT 2025

avoid negative shifts, per Zi Yan

Cc: Chris Li <chrisl@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Vineet Gupta <vgupta@kernel.org>
Cc: Ye Liu <liuye@kylinos.cn>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/mm.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/include/linux/mm.h~mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix
+++ a/include/linux/mm.h
@@ -75,8 +75,8 @@ extern void * high_memory;
  * PAGE_SHIFT is the shift for page size (e.g., 12 for 4KB pages)
  * So (20 - PAGE_SHIFT) converts between pages and MB
  */
-#define PAGES_TO_KB(pages) ((pages) >> (10 - PAGE_SHIFT))
-#define KB_TO_PAGES(kb)    ((kb) << (10 - PAGE_SHIFT))
+#define PAGES_TO_KB(pages) ((pages) << (PAGE_SHIFT - 10))
+#define KB_TO_PAGES(kb)    ((kb) >> (PAGE_SHIFT - 10))
 #define PAGES_TO_MB(pages) ((pages) >> (20 - PAGE_SHIFT))
 #define MB_TO_PAGES(mb)    ((mb) << (20 - PAGE_SHIFT))
 
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix.patch
mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix.patch
mm-damon-core-skip-needless-update-of-damon_attrs-in-damon_commit_ctx-fix.patch
mm-convert-core-mm-to-mm_flags_-accessors-fix.patch
memcg-optimize-exit-to-user-space-fix.patch
mm-page_table_check-reinstate-address-parameter-in-page_table_check_pud_set-fix.patch
lib-sys_info-handle-sys_info_mask==0-case-fix.patch

+ mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix
has been added to the -mm mm-unstable branch.  Its filename is
     mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days

------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix
Date: Tue Aug 26 04:06:31 PM PDT 2025

don't include mm.h due to include file ordering mess

Cc: Chris Li <chrisl@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Vineet Gupta <vgupta@kernel.org>
Cc: Ye Liu <liuye@kylinos.cn>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/arc/include/asm/arcregs.h |    2 --
 1 file changed, 2 deletions(-)

--- a/arch/arc/include/asm/arcregs.h~mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix
+++ a/arch/arc/include/asm/arcregs.h
@@ -146,8 +146,6 @@
 
 #ifndef __ASSEMBLER__
 
-#include <linux/mm.h>
-
 #include <soc/arc/arc_aux.h>
 
 /* Helpers */
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix.patch
mm-replace-20-page_shift-with-common-macros-for-pages-mb-conversion-fix-fix.patch
mm-damon-core-skip-needless-update-of-damon_attrs-in-damon_commit_ctx-fix.patch
mm-convert-core-mm-to-mm_flags_-accessors-fix.patch
memcg-optimize-exit-to-user-space-fix.patch