Re: [PATCH 6/6] mm: migrate: Drop unused argument of migrate_page_move_mapping()

[Jan Kara <jack@suse.cz>]

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On Thu 13-12-18 17:17:46, Jan Kara wrote:
> On Thu 13-12-18 15:35:43, Mel Gorman wrote:
> > On Tue, Dec 11, 2018 at 06:21:43PM +0100, Jan Kara wrote:
> > > All callers of migrate_page_move_mapping() now pass NULL for 'head'
> > > argument. Drop it.
> > > 
> > > Signed-off-by: Jan Kara <jack@suse.cz>
> > 
> > Acked-by: Mel Gorman <mgorman@suse.de>
> 
> Thanks for review Mel! Andrew, can you please pick up the series? Thanks!

Andrew, Mel has spotted a bug in patch 1/6 or this series. Can you please
add the attached fixup to the patch 1? Thanks!

								Honza
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

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diff --git a/mm/migrate.c b/mm/migrate.c
index 789c7bc90a0c..816ce10e908f 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -438,7 +438,7 @@ static int expected_page_refs(struct page *page)
 	 */
 	expected_count += is_device_private_page(page);
 	expected_count += is_device_public_page(page);
-	if (page->mapping)
+	if (page_mapping(page))
 		expected_count += hpage_nr_pages(page) + page_has_private(page);
 
 	return expected_count;