X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=mm%2Fmigrate.c;h=f9dfb18a4ebac9f2f36d798ce6fa6b4ecd4d3c77;hb=d4bf7078c43e11097e0d6f04d3fb999bf92c4fb0;hp=6c822a7b27e066148d38fd9ed47f80a3ad4de055;hpb=a34d5df85ebb8317592360b1611354f8b9853e55;p=deliverable%2Flinux.git

diff --git a/mm/migrate.c b/mm/migrate.c
index 6c822a7b27e0..f9dfb18a4eba 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -975,7 +975,13 @@ out:
 		dec_zone_page_state(page, NR_ISOLATED_ANON +
 				page_is_file_cache(page));
 		/* Soft-offlined page shouldn't go through lru cache list */
-		if (reason == MR_MEMORY_FAILURE) {
+		if (reason == MR_MEMORY_FAILURE && rc == MIGRATEPAGE_SUCCESS) {
+			/*
+			 * With this release, we free successfully migrated
+			 * page and set PG_HWPoison on just freed page
+			 * intentionally. Although it's rather weird, it's how
+			 * HWPoison flag works at the moment.
+			 */
 			put_page(page);
 			if (!test_set_page_hwpoison(page))
 				num_poisoned_pages_inc();