On Wed, Mar 09, 2016 at 05:23:26PM +0530, Vineet Gupta wrote: > > I did not follow through the maze, I think the few archs implementing > > this simply do not include this file at all. > > > > I'll let the first person that cares about this worry about that :-) > > Ok - that's be me :-) although I really don't see much gains in case of ARC LLSC. > > For us, LD + BCLR + ST is very similar to LLOCK + BCLR + SCOND atleast in terms of > cache coherency transactions ! The win would be in not having to ever retry the SCOND. Although in this case, the contending CPU would be doing reads -- which I assume will not cause a SCOND to fail, so it might indeed not make any difference. -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html