On Wed, Jun 01, 2011 at 05:50:49PM -0400, Vivek Goyal wrote: > Hi, > > If I throttle a DIO/AIO WRITE bio at block device in a cgroup, will it > lead to any kind of serialization of ext4 file system. IOW, is there any > filesystem operation which will wait for that DIO/AIO WRITE to finish > before other filesystem can make progress (fsync, journalling etc?) Truncate? (XFS explicitly serialises truncate against in flight DIO, regardless of whether ext4 does.) Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
