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authorJoonsoo Kim <iamjoonsoo.kim@lge.com>2014-01-21 15:51:18 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-21 16:19:49 -0800
commit78d5506e82b21a1a1de68c24182db2c2fe521422 (patch)
treed3a0632291ff79bc1118e68cbceb1d5e92350dab
parent59c82b70dcd9cc273c21fae5abc29e41fc732a17 (diff)
downloadlinux-78d5506e82b21a1a1de68c24182db2c2fe521422.tar.bz2
mm/migrate: remove unused function, fail_migrate_page()
fail_migrate_page() isn't used anywhere, so remove it. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Christoph Lameter <cl@linux.com> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Rafael Aquini <aquini@redhat.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Rik van Riel <riel@redhat.com> Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/migrate.h4
-rw-r--r--mm/migrate.c8
2 files changed, 0 insertions, 12 deletions
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 2a411bc0097f..84a31ad0b791 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -41,9 +41,6 @@ extern int migrate_page(struct address_space *,
extern int migrate_pages(struct list_head *l, new_page_t x,
unsigned long private, enum migrate_mode mode, int reason);
-extern int fail_migrate_page(struct address_space *,
- struct page *, struct page *);
-
extern int migrate_prep(void);
extern int migrate_prep_local(void);
extern int migrate_vmas(struct mm_struct *mm,
@@ -84,7 +81,6 @@ static inline int migrate_huge_page_move_mapping(struct address_space *mapping,
/* Possible settings for the migrate_page() method in address_operations */
#define migrate_page NULL
-#define fail_migrate_page NULL
#endif /* CONFIG_MIGRATION */
diff --git a/mm/migrate.c b/mm/migrate.c
index 8a73d66be102..a8025befc323 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -552,14 +552,6 @@ void migrate_page_copy(struct page *newpage, struct page *page)
* Migration functions
***********************************************************/
-/* Always fail migration. Used for mappings that are not movable */
-int fail_migrate_page(struct address_space *mapping,
- struct page *newpage, struct page *page)
-{
- return -EIO;
-}
-EXPORT_SYMBOL(fail_migrate_page);
-
/*
* Common logic to directly migrate a single page suitable for
* pages that do not use PagePrivate/PagePrivate2.