diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory-failure.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 2020944398c9..27760c19bad7 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1861,6 +1861,19 @@ try_again: if (PageTransHuge(hpage)) { /* + * Bail out before SetPageHasHWPoisoned() if hpage is + * huge_zero_page, although PG_has_hwpoisoned is not + * checked in set_huge_zero_page(). + * + * TODO: Handle memory failure of huge_zero_page thoroughly. + */ + if (is_huge_zero_page(hpage)) { + action_result(pfn, MF_MSG_UNSPLIT_THP, MF_IGNORED); + res = -EBUSY; + goto unlock_mutex; + } + + /* * The flag must be set after the refcount is bumped * otherwise it may race with THP split. * And the flag can't be set in get_hwpoison_page() since |