On Thu, Apr 16, 2015 at 09:28:02AM +0200, Ingo Molnar wrote: > > * Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > > > For fixed sized copies, copy_to_user() will utilize __put_user_size > > fastpaths. However, it is missing the translation for 64bit copies on > > x86/32. Testing on a Pinetrail Atom, the 64 bit put_user fastpath is > > substantially faster than the generic copy_to_user() fallback. > > > > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > > Cc: Ingo Molnar <mingo@xxxxxxxxxx> > > Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> > > Cc: x86@xxxxxxxxxx > > CC: linux-kernel@xxxxxxxxxxxxxxx > > The patch makes sense, but your Signed-off-by line is missing. Sorry, totally forgot that when rewriting the changelog. Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
