On 01/26/2012 02:35 AM, Greta Yorsh wrote: > Before the change, __sync_lock_release expanded into STRD, storing DI value 0.
The most important question is: Is STRD guaranteed to perform the store
atomically? (And conversely, does LDRD perform the load atomically?)
If so (even for a subset of arch revisions going forward), then the
correct solution is to define atomic_{load,store}di patterns.
If not, then your patch is correct.
r~
