Fix ext3 bugs:
      zcat sync_fs.patch.gz | patch -p1
      zcat ext3-use-after-free.patch.gz | patch -p1
      zcat sync_fs-fix.patch.gz | patch -p1
      zcat sync_fs-fix-2.patch.gz | patch -p1
      zcat ext3-scheduling-storm.patch.gz | patch -p1