f2fs: check end_io for metapages before making next checkpoint blocks

This patch avoids to produce new checkpoint blocks before the previous meta
pages were written completely.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index c5a38e352a80952dc833c5740eec11f64eadec59..ff53405aee39e47094882bac8e90e02dc0802768 100644 (file)
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1000,6 +1000,11 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 
        start_blk = __start_cp_addr(sbi);
 
+       /* need to wait for end_io results */
+       wait_on_all_pages_writeback(sbi);
+       if (unlikely(f2fs_cp_error(sbi)))
+               return;
+
        /* write out checkpoint buffer at block 0 */
        update_meta_page(sbi, ckpt, start_blk++);