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mm: page_alloc: use get_freepage_migratetype() instead of page_private()

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The page allocator uses set_page_private and page_private for handling
migratetype when it frees page.  Let's replace them with [set|get]
_freepage_migratetype to make it more clear.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Xishi Qiu <qiuxishi@huawei.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Minchan Kim
2012-10-08 16:32:08 -07:00
committed by Linus Torvalds
parent d95ea5d18e
commit b12c4ad14e
3 changed files with 16 additions and 4 deletions
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12
include/linux/mm.h
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@@ -237,6 +237,18 @@ struct inode;
#define page_private(page) ((page)->private)
#define set_page_private(page, v) ((page)->private = (v))
/* It's valid only if the page is free path or free_list */
static inline void set_freepage_migratetype(struct page *page, int migratetype)
{
set_page_private(page, migratetype);
}
/* It's valid only if the page is free path or free_list */
static inline int get_freepage_migratetype(struct page *page)
{
return page_private(page);
}
/*
* FIXME: take this include out, include page-flags.h in
* files which need it (119 of them)