Pdraig_Brady: > Are you always going to increase the size? > LOOP_SET_CAPACITY suggests you might be better to use > a more general --set-capacity option? Increase only, as xfs_growfs and resize2fs (during mounted) do. If other filesystem supports online shrinking, then --set-capacity will be better, I agree. > There is a patch in the works to give `truncate` an --allocate option > which will then in turn call posix_fallocate(). This has the advantage I see. > That strikes me as a little awkward but also I'm not sure > that losetup should be messing around with the file size at all, > especially considering the offset parameter (I didn't notice > handling of this in the patch). I don't think the offset is important at growing the backend file. Anyway as long as you don't like modifying losetup, I'd suggest a new utility logrow. Once "truncate" suppports --allocate, then losetup will support LOOP_SET_CAPACITY simply. J. R. Okajima -- To unsubscribe from this list: send the line "unsubscribe util-linux-ng" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html