On Mon, 12 Feb 2007, Toby Thain wrote: [ ... ]
I'm no guru, but would not ZFS already require strict ordering for its transactions ... which property Peter was exploiting to get "fbarrier()" for free?
It achieves this by flushing the disk write cache when there's need to barrier. Which completes outstanding writes.
A "perfect fsync()" for ZFS shouldn't need to do way more; that it does right now is something, as I understand, that is being worked on.
FrankH. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss