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@xxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxx Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- 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@xxxxxxxxxxxxxxx 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