Postpone resetting page->mapping till final remove_migration_ptes(),
otherwise expression PageAnon(migration_entry_to_page(entry)) does not work.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>
---
mm/migrate.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/mm/migrate.c b/mm/migrate.c
index 177aca4..f59cd76 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -386,7 +386,6 @@ void migrate_page_copy(struct page *newpage, struct page *page)
ClearPageSwapCache(page);
ClearPagePrivate(page);
set_page_private(page, 0);
- page->mapping = NULL;
/*
* If any waiters have accumulated on the new page then
@@ -614,6 +613,7 @@ static int move_to_new_page(struct page *newpage, struct page *page,
} else {
if (remap_swapcache)
remove_migration_ptes(page, newpage);
+ page->mapping = NULL;
}
unlock_page(newpage);
--
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