On Fri, 2013-08-23 at 18:48 -0500, Scott Wood wrote: > Actually, I changed my mind in the other direction in parallel. :-P > > I think it's probably safe.
Yes, I think it is as well ... but only because "current" is special and whatever the r13 for the thread is, r13->current will always be the same value for that thread :-) Note: That would NOT work if we used a C construct such as local_paca->current, because in that case, gcc might be stupid enough to *copy* r13 to another reg, and later on dereference using that other reg. At that point, the paca pointer itself might become stale when used. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
