[PATCH 4] mm: fix possible incorrect return value of move_pages() syscall

From: Joonsoo Kim
Date: Mon Jul 16 2012 - 13:16:09 EST

move_pages() syscall may return success in case that
do_move_page_to_node_array return positive value which means migration failed.
This patch changes return value of do_move_page_to_node_array
for not returning positive value. It can fix the problem.

Signed-off-by: Joonsoo Kim <js1304@xxxxxxxxx>
Cc: Brice Goglin <brice@xxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>

diff --git a/mm/migrate.c b/mm/migrate.c
index 294d52a..adabaf4 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1171,7 +1171,7 @@ set_status:

- return err;
+ return err > 0 ? -EIO : err;


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/