On Thu, May 31 2007, Phillip Susi wrote: > David Chinner wrote: > >That sounds like a good idea - we can leave the existing > >WRITE_BARRIER behaviour unchanged and introduce a new WRITE_ORDERED > >behaviour that only guarantees ordering. The filesystem can then > >choose which to use where appropriate.... > > So what if you want a synchronous write, but DON'T care about the order? > They need to be two completely different flags which you can choose > to combine, or use individually. If you have a use case for that, we can easily support it as well... Depending on the drive capabilities (FUA support or not), it may be nearly as slow as a "real" barrier write. -- Jens Axboe -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
