From: Kemeng Shi Date: Mon, 17 Jul 2023 11:32:27 +0000 (+0800) Subject: mm/page_ext: move page_ext_operations definition under CONFIG_PAGE_EXTENSION X-Git-Tag: block-6.6-2023-09-08~16^2~228 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=67311a36e5e1e56dfa7264c93db759b18217e114;p=linux-block.git mm/page_ext: move page_ext_operations definition under CONFIG_PAGE_EXTENSION 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 Signed-off-by: Andrew Morton --- diff --git a/include/linux/page_ext.h b/include/linux/page_ext.h index 658d8d39a10e..be98564191e6 100644 --- a/include/linux/page_ext.h +++ b/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. */