On Mon, 2015-03-09 at 17:53 +1100, Benjamin Herrenschmidt wrote: > On Sat, 2015-03-07 at 19:19 +0800, Kevin Hao wrote: > > It makes no sense to use a variant lock token on a platform which > > doesn't support for shared-processor logical partitions. Actually we > > can eliminate a memory load by using a fixed lock token on these > > platforms. > > Does this provide an actual measurable benefit ? I found that the lock > token was quite handy for debugging ...
Yeah. It can be very useful to know which cpu holds a lock when you get into a dead lock. Unless you can show this is a performance boost I'm inclined to leave it as-is. cheers _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
