>>>>>> "Stephen" == Stephen C Tweedie <sct@redhat.com> writes: > > Stephen> Hi, On Tue, 2003-02-11 at 13:11, Stephan van Hienen wrote: > > Stephen> I've no idea. Ben has some lb patches up at > > Stephen> http://people.redhat.com/bcrl/lb/ > > Stephen> but there's nothing broken out against the latest lbd diffs. > > > Ben's patches are against a very old version of the kernel (2.4.6-pre8) and > require linking against libgcc to get 64-bit division. > > > The main issue is 64-bit division. In the limited time I had I > couldn't convince myself that I could rely on all divisors being less than > 2^31 in the raid4/5 code. If you can convince yourself of that, then t's a > straightforward but tedious task to make raid1, raid4 and raid5 LBD-safe. > -- Hi, Is this in a speed-sensitive area? If not, you could consider 64-bit software divide functions, such as found at http://nemesis.sourceforge.net/browse/lib/static/intmath/ix86/intmath.c.html, which would only be used on 32-bit CPUs, of course. -- ~Randy - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
