diff options
| -rw-r--r-- | mm/memory-failure.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index b62287db87a..dc47415a551 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -687,6 +687,8 @@ static int hwpoison_user_mappings(struct page *p, unsigned long pfn, /* * Propagate the dirty bit from PTEs to struct page first, because we * need this to decide if we should kill or just drop the page. + * XXX: the dirty test could be racy: set_page_dirty() may not always + * be called inside page lock (it's recommended but not enforced). */ mapping = page_mapping(p); if (!PageDirty(p) && mapping && mapping_cap_writeback_dirty(mapping)) { |