On Wed, 2008-08-13 at 13:19 +0100, Jamie Lokier wrote: > You're right, as long as it's not aio, there's no way to sensibly > order it with concurrent writes; I take it back. > > (Aside: You would issue writes to *different* sectors before > BLKDISCARD, and they must be done in that order. That is how you > implement journalling.) Yes, but you implement flushes or barriers to handle that case _anyway_. Normal writes can cross each other too, when they're on different pages. -- David Woodhouse Open Source Technology Centre David.Woodhouse@xxxxxxxxx Intel Corporation -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html