+ mm-page_ext-move-page_ext_operations-definition-under-config_page_extension.patch added to mm-unstable branch

+ mm-page_ext-move-page_ext_operations-definition-under-config_page_extension.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/page_ext: move page_ext_operations definition under CONFIG_PAGE_EXTENSION
has been added to the -mm mm-unstable branch.  Its filename is
     mm-page_ext-move-page_ext_operations-definition-under-config_page_extension.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_ext-move-page_ext_operations-definition-under-config_page_extension.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: Kemeng Shi <shikemeng@huaweicloud.com>
Subject: mm/page_ext: move page_ext_operations definition under CONFIG_PAGE_EXTENSION
Date: Mon, 17 Jul 2023 19:32:27 +0800

page_ext_operations should only be defined when CONFIG_PAGE_EXTENSION is
enabled.

Besides, this may detect missing reliance on CONFIG_PAGE_EXTENSION from
future Page Extension clients at compile time.

Link: https://lkml.kernel.org/r/20230717113227.1897173-4-shikemeng@huaweicloud.com
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/page_ext.h |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/include/linux/page_ext.h~mm-page_ext-move-page_ext_operations-definition-under-config_page_extension
+++ a/include/linux/page_ext.h
@@ -8,6 +8,7 @@
 
 struct pglist_data;
 
+#ifdef CONFIG_PAGE_EXTENSION
 /**
  * struct page_ext_operations - per page_ext client operations
  * @offset: Offset to the client's data within page_ext. Offset is returned to
@@ -29,8 +30,6 @@ struct page_ext_operations {
 	bool need_shared_flags;
 };
 
-#ifdef CONFIG_PAGE_EXTENSION
-
 /*
  * The page_ext_flags users must set need_shared_flags to true.
  */
_

Patches currently in -mm which might be from shikemeng@huaweicloud.com are

mm-correct-stale-comment-of-function-check_pte.patch
mm-page_table_check-remove-unused-parameters-in-page_table_check_clear.patch
mm-page_table_check-remove-unused-parameters-in-page_table_check_set.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pte_clear.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pmd_clear.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pud_clear.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pte_set.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pmd_set.patch
mm-page_table_check-remove-unused-parameter-in-page_table_check_pud_set.patch
mm-page_ext-remove-unused-return-value-of-offline_page_ext.patch
mm-page_ext-remove-rollback-for-untouched-mem_section-in-online_page_ext.patch
mm-page_ext-move-functions-around-for-minor-cleanups-to-page_ext.patch
mm-page_ext-add-common-function-to-get-client-data-from-page_ext.patch
mm-page_ext-use-page_ext_data-helper-in-page_table_check.patch
mm-page_ext-use-page_ext_data-helper-in-page_owner.patch
mm-rmap-correct-stale-comment-of-rmap_walk_anon-and-rmap_walk_file.patch
mm-page_poison-remove-unused-page_exth-from-page_poison.patch
mm-vmstat-remove-unused-page_exth-from-vmstat.patch
mm-page_ext-move-page_ext_operations-definition-under-config_page_extension.patch