On Mon, Nov 07, 2016 at 09:48:41AM -0800, Mark Fasheh wrote: > also on XFS with the dedupe ioctl (I believe this should be out with > Linux-4.9). It's already there in 4.9-rc1, although you need a special version of xfsprogs (possibly already released, I didn't check). It's an experimental feature that needs to be enabled with "-m reflink=1". Despite that experimental status, I'd strongly recommend James to test his tool on xfs as well, as it's the second major implementation of this API[1]. Mark has already included XFS in documentation of duperemove, all that looks amiss is btrfs-extent-same having an obsolete name. But then, I never did any non-superficial tests on XFS, beyond "seems to work". Meow! [1]. For some reasons zfs-on-linux guys didn't implement this yet, despite it being an obvious thing on ZFS. -- A MAP07 (Dead Simple) raspberry tincture recipe: 0.5l 95% alcohol, 1kg raspberries, 0.4kg sugar; put into a big jar for 1 month. Filter out and throw away the fruits (can dump them into a cake, etc), let the drink age at least 3-6 months. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
