• Jaegeuk Kim's avatar
    f2fs: fix out-of free segments · a7881893
    Jaegeuk Kim authored
    This patch also reverts d0db7703 ("f2fs: do SSR in higher priority").
    
    This patch fixes out of free segments caused by many small file creation by
    1) mkfs -s 1 2G
    2) mount
    3) untar
     - preoduce 60000 small files burstly
    4) sync
     - flush node pages
     - flush imeta
    
    Here, when we do f2fs_balance_fs, we missed # of imeta blocks, resulting in
    skipping to check has_not_enough_free_secs.
    
    Another test is done by
    1) mkfs -s 12 2G
    2) mount
    3) untar
     - preoduce 60000 small files burstly
    4) sync
     - flush node pages
     - flush imeta
    
    In this case, this patch also fixes wrong block allocation under large section
    size.
    Reported-by: default avatarWilliam Brana <wbrana@gmail.com>
    Cc: <stable@vger.kernel.org>
    Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
    a7881893
data.c 51.2 KB