On Wed, Nov 11, 2020 at 02:39:01PM +0100, Christophe Leroy wrote: > Hello, > > Le 11/11/2020 à 12:07, Nicholas Piggin a écrit : > > This passes atomic64 selftest on ppc32 on qemu (uniprocessor only) > > both before and after powerpc is converted to use ARCH_ATOMIC. > > Can you explain what this change does and why it is needed ? That certainly should've been in the Changelog. This enables atomic instrumentation, see asm-generic/atomic-instrumented.h. IOW, it makes atomic ops visible to K*SAN.
