On Wed, Oct 29, 2008 at 04:07:30PM +0100, Heinz Mauelshagen wrote: > Am Mittwoch, den 29.10.2008, 13:56 +0000 schrieb Alasdair G Kergon: > > On Wed, Oct 29, 2008 at 02:02:08PM +0100, Heinz Mauelshagen wrote: > > The validation should be consistent between userspace and kernel. > It should be sufficiently restrictive in the kernel to prevent > programming errors causing oopses. It can be called via the kernel > interface by any application anyway, so doesn't need to enforce our > uspace restrictions (think direct IOCTL calls). Surely the validation in the two places should match? Why would userspace need a tighter restriction than the kernel? One or the other is incorrect. - E.g. Does kcopyd handle sub-page regions OK now? Alasdair -- agk@xxxxxxxxxx -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
