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authorAl Viro <viro@zeniv.linux.org.uk>2016-05-17 02:17:59 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2016-05-17 02:17:59 -0400
commit0e0162bb8c008fa7742f69d4d4982c8a37b88f95 (patch)
tree4b230ab63b5698a44d2948e70a6cc22405c351e9 /mm/migrate.c
parentae05327a00fd47c34dfe25294b359a3f3fef96e8 (diff)
parent38b78a5f18584db6fa7441e0f4531b283b0e6725 (diff)
downloadlwn-0e0162bb8c008fa7742f69d4d4982c8a37b88f95.tar.gz
lwn-0e0162bb8c008fa7742f69d4d4982c8a37b88f95.zip
Merge branch 'ovl-fixes' into for-linus
Backmerge to resolve a conflict in ovl_lookup_real(); "ovl_lookup_real(): use lookup_one_len_unlocked()" instead, but it was too late in the cycle to rebase.
Diffstat (limited to 'mm/migrate.c')
-rw-r--r--mm/migrate.c8
1 files changed, 7 insertions, 1 deletions
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();