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Commit 1cf9ec20 authored by Laura Abbott's avatar Laura Abbott Committed by Matt Wagantall
Browse files

mm: Add is_cma_pageblock definition 



Bring back the is_cma_pageblock definition for determining if a
page is CMA or not.

Change-Id: I39fd546e22e240b752244832c79514f109c8e84b
Signed-off-by: default avatarLaura Abbott <lauraa@codeaurora.org>
parent a558f6c1

include/linux/mmzone.h

+2 −0
Original line number Diff line number Diff line
@@ -72,8 +72,10 @@ enum { 
extern int *get_migratetype_fallbacks(int mtype);



#ifdef CONFIG_CMA

bool is_cma_pageblock(struct page *page);

#  define is_migrate_cma(migratetype) unlikely((migratetype) == MIGRATE_CMA)

#else

#  define is_cma_pageblock(page) false

#  define is_migrate_cma(migratetype) false

#endif

mm/page_alloc.c

+5 −0
Original line number Diff line number Diff line
@@ -817,6 +817,11 @@ void __free_pages_bootmem(struct page *page, unsigned int order) 
}



#ifdef CONFIG_CMA

bool is_cma_pageblock(struct page *page)

{

	return get_pageblock_migratetype(page) == MIGRATE_CMA;

}



/* Free whole pageblock and set its migration type to MIGRATE_CMA. */

void __init init_cma_reserved_pageblock(struct page *page)

{