> On 5/12/2014 2:11 AM, Rolf Eike Beer wrote: > > Am Sonntag, 11. Mai 2014, 18:40:50 schrieb John David Anglin: > >> The attached change significantly improves the performance of the LWS- > >> CAS code in syscall.S. > >> This allows a number of packages to build (e.g., zeromq3, gtest and > >> libxs) that previously failed because > >> slow LWS-CAS performance under contention. In particular, interrupts > >> taken while the lock was taken > >> degraded performance significantly. > > Sounds cool ;) > > > > The label cas_wouldblock would now only be defined in SMP case, which looks > > odd. Since I can't find any references to it I think it should just be dropped. > I was aware when I sent the change that the label cas_wouldblock is not > used. Possibly, it should change to a comment but maybe that's a separate cleanup. I left it in when I pushed your patch to my git tree: http://git.kernel.org/cgit/linux/kernel/git/deller/parisc-linux.git/log/?h=for-next I think it makes sense to leave it in because it makes this piece clear. In addition I added CC to push it backwards into kernels 3.13 and 3.14 too. Helge -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
