f2fs: check node page again in write end io

Check node page again in write end io in case of
data corruption during inflght IO.

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 304b899..31add84 100644 (file)
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -114,6 +114,10 @@ static void f2fs_write_end_io(struct bio *bio)
                        if (type == F2FS_WB_CP_DATA)
                                f2fs_stop_checkpoint(sbi, true);
                }
+
+               f2fs_bug_on(sbi, page->mapping == NODE_MAPPING(sbi) &&
+                                       page->index != nid_of_node(page));
+
                dec_page_count(sbi, type);
                clear_cold_data(page);
                end_page_writeback(page);