From 9d003dec972563efb8ce14c9962af3652d0e201d Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Wed, 10 Sep 2025 15:29:19 +0100 Subject: mm: remove page->order We already use page->private for storing the order of a page while it's in the buddy allocator system; extend that to also storing the order while it's in the pcp_llist. Link: https://lkml.kernel.org/r/20250910142923.2465470-4-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Acked-by: Alexei Starovoitov Acked-by: Vlastimil Babka Signed-off-by: Andrew Morton --- include/linux/mm_types.h | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index f048dc80646e..6920c816f6c6 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -97,10 +97,7 @@ struct page { /* Or, free page */ struct list_head buddy_list; struct list_head pcp_list; - struct { - struct llist_node pcp_llist; - unsigned int order; - }; + struct llist_node pcp_llist; }; struct address_space *mapping; union { @@ -111,7 +108,8 @@ struct page { * @private: Mapping-private opaque data. * Usually used for buffer_heads if PagePrivate. * Used for swp_entry_t if swapcache flag set. - * Indicates order in the buddy system if PageBuddy. + * Indicates order in the buddy system if PageBuddy + * or on pcp_llist. */ unsigned long private; }; -- cgit v1.2.3