On Wed, Aug 19, 2015 at 06:53:41AM -0400, Mikulas Patocka wrote: > On Tue, 18 Aug 2015, Mike Snitzer wrote: > > On Tue, Aug 18 2015 at 4:26pm -0400, > > Mikulas Patocka <mpatocka@xxxxxxxxxx> wrote: > > > Mike, please submit this patch to the upstream kernel before 4.2 is > > > released, so that the all the kernels that support the options > > > "precise_timestamps" and "histogram" also report these values back. > > > > Userspace will have to check the DM ioctl version to know if DM provides > > these extra keywords. > > > > Mike > > But if you don't send it, userspace will forever have to deal with kernels > that don't report this feature back. We'd either end up saying some kernels can't support it when they can, or have to carry some additional userspace clutter forever to provide a workaround. Regards, Bryn. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
