From: Richard Weinberger <richard@xxxxxx>
commit 1118dce773d84f39ebd51a9fe7261f9169cb056e upstream.
Export these symbols such that UBIFS can implement
->migratepage.
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Acked-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
[wt: also add the prototype to include/linux/migrate.h]
Signed-off-by: Willy Tarreau <w@xxxxxx>
---
include/linux/migrate.h | 3 +++
mm/migrate.c | 2 ++
2 files changed, 5 insertions(+)
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index a405d3dc..e986927 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -55,6 +55,9 @@ extern int migrate_vmas(struct mm_struct *mm,
extern void migrate_page_copy(struct page *newpage, struct page *page);
extern int migrate_huge_page_move_mapping(struct address_space *mapping,
struct page *newpage, struct page *page);
+extern int migrate_page_move_mapping(struct address_space *mapping,
+ struct page *newpage, struct page *page,
+ struct buffer_head *head, enum migrate_mode mode);
#else
static inline void putback_lru_pages(struct list_head *l) {}
diff --git a/mm/migrate.c b/mm/migrate.c
index a61500f..2ee28c2 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -412,6 +412,7 @@ static int migrate_page_move_mapping(struct address_space *mapping,
return MIGRATEPAGE_SUCCESS;
}
+EXPORT_SYMBOL(migrate_page_move_mapping);
/*
* The expected number of remaining references is the same as that
@@ -503,6 +504,7 @@ void migrate_page_copy(struct page *newpage, struct page *page)
if (PageWriteback(newpage))
end_page_writeback(newpage);
}
+EXPORT_SYMBOL(migrate_page_copy);
/************************************************************
* Migration functions
--
2.8.0.rc2.1.gbe9624a
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