On Fri, Aug 16, 2013 at 04:22:12PM -0700, Andy Lutomirski wrote: > A fancier implementation could probably avoid an extra journal > transaction by adding a mapping_test_clear_cmtime call in > ext4_writepages, but this should already be a considerable > improvement -- we'll start one transaction per writepages call > instead of one per page. I'd like to see more than just an ext4 implementation - btrfs and XFS are the other main filesystems that should behave identically. Also, it's worthwhile to write a generic xfstest to ensure that they all update the timestamp appropriately - if its' in xfstests, then we can basically guarantee that it won't get randomly regressed in future, and other filesystems can be easily verified as well sa their implement this. 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
