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c0a5d93a88
Patch series "add page_ext_data to get client data in page_ext". Current clients get data from page_ext by adding offset which is auto generated in page_ext core and exposes the data layout design inside page_ext core. This series adds a page_ext_data() to hide this from clients. Benefits include: 1. Future clients can call page_ext_data directly instead of defining a new function like get_page_owner to get the data. 2. There is no change to clients if the layout of page_ext data changes. This patch (of 3): Add common page_ext_data function to get client data. This could hide offset which is auto generated in page_ext core and expose the desgin of page_ext data layout. Link: https://lkml.kernel.org/r/20230718145812.1991717-1-shikemeng@huaweicloud.com Link: https://lkml.kernel.org/r/20230718145812.1991717-2-shikemeng@huaweicloud.com Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com> Reviewed-by: Andrew Morton <akpm@linux-foudation.org> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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