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authorJoonsoo Kim <iamjoonsoo.kim@lge.com>2020-08-12 04:37:14 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-12 20:58:02 +0300
commitb4b382238ed2f94f0d3860f9120b66404fa99463 (patch)
tree90637dc6904c05f2919849b5c102fd32bbcba61a /include/linux/migrate.h
parentc7073bab5772e0e2ab2c766a05f68174974b1ab5 (diff)
downloadlinux-b4b382238ed2f94f0d3860f9120b66404fa99463.tar.xz
mm/migrate: move migration helper from .h to .c
It's not performance sensitive function. Move it to .c. This is a preparation step for future change. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Mike Kravetz <mike.kravetz@oracle.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Roman Gushchin <guro@fb.com> Link: http://lkml.kernel.org/r/1594622517-20681-3-git-send-email-iamjoonsoo.kim@lge.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/migrate.h')
-rw-r--r--include/linux/migrate.h33
1 files changed, 5 insertions, 28 deletions
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 540998d9810b..abeb4b15b297 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -31,34 +31,6 @@ enum migrate_reason {
/* In mm/debug.c; also keep sync with include/trace/events/migrate.h */
extern const char *migrate_reason_names[MR_TYPES];
-static inline struct page *new_page_nodemask(struct page *page,
- int preferred_nid, nodemask_t *nodemask)
-{
- gfp_t gfp_mask = GFP_USER | __GFP_MOVABLE | __GFP_RETRY_MAYFAIL;
- unsigned int order = 0;
- struct page *new_page = NULL;
-
- if (PageHuge(page))
- return alloc_huge_page_nodemask(page_hstate(compound_head(page)),
- preferred_nid, nodemask);
-
- if (PageTransHuge(page)) {
- gfp_mask |= GFP_TRANSHUGE;
- order = HPAGE_PMD_ORDER;
- }
-
- if (PageHighMem(page) || (zone_idx(page_zone(page)) == ZONE_MOVABLE))
- gfp_mask |= __GFP_HIGHMEM;
-
- new_page = __alloc_pages_nodemask(gfp_mask, order,
- preferred_nid, nodemask);
-
- if (new_page && PageTransHuge(new_page))
- prep_transhuge_page(new_page);
-
- return new_page;
-}
-
#ifdef CONFIG_MIGRATION
extern void putback_movable_pages(struct list_head *l);
@@ -67,6 +39,8 @@ extern int migrate_page(struct address_space *mapping,
enum migrate_mode mode);
extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free,
unsigned long private, enum migrate_mode mode, int reason);
+extern struct page *new_page_nodemask(struct page *page,
+ int preferred_nid, nodemask_t *nodemask);
extern int isolate_movable_page(struct page *page, isolate_mode_t mode);
extern void putback_movable_page(struct page *page);
@@ -85,6 +59,9 @@ static inline int migrate_pages(struct list_head *l, new_page_t new,
free_page_t free, unsigned long private, enum migrate_mode mode,
int reason)
{ return -ENOSYS; }
+static inline struct page *new_page_nodemask(struct page *page,
+ int preferred_nid, nodemask_t *nodemask)
+ { return NULL; }
static inline int isolate_movable_page(struct page *page, isolate_mode_t mode)
{ return -EBUSY; }