Commit 28fb54f6 authored by Vishal Moola (Oracle)'s avatar Vishal Moola (Oracle) Committed by Andrew Morton
Browse files

mmzone: introduce folio_migratetype() 

Introduce folio_migratetype() as a folio equivalent for
get_pageblock_migratetype().  This function intends to return the
migratetype the folio is located in, hence the name choice.

Link: https://lkml.kernel.org/r/20230614021312.34085-3-vishal.moola@gmail.com


Signed-off-by: default avatarVishal Moola (Oracle) <vishal.moola@gmail.com>
Reviewed-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 708ff491

include/linux/mmzone.h

+3 −0
Original line number Diff line number Diff line
@@ -105,6 +105,9 @@ extern int page_group_by_mobility_disabled; 
#define get_pageblock_migratetype(page)					\

	get_pfnblock_flags_mask(page, page_to_pfn(page), MIGRATETYPE_MASK)



#define folio_migratetype(folio)				\

	get_pfnblock_flags_mask(&folio->page, folio_pfn(folio),		\

			MIGRATETYPE_MASK)

struct free_area {

	struct list_head	free_list[MIGRATE_TYPES];

	unsigned long		nr_free;