Christophe Leroy's on April 6, 2020 3:44 am: > current is a volatile pointer hold by r2 register. > > READ_ONCE() is not required. > > Before: 327 cycles on null_syscall > Before: 325 cycles on null_syscall
Patches against Michael's next-test branch have a few small changes here. I need to look at the fallout on 64-bit code, although most likely it's not measurable so if it saves you a few cycles we can lean toward what ppc32 prefers. Same with the compat test. Thanks, Nick
