On Thu, Jul 06, 2023 at 12:41:04AM +0200, Peter Zijlstra wrote: > On Thu, Jul 06, 2023 at 12:23:57AM +0200, Frederic Weisbecker wrote: > > If this is just about a dozen, can we stuff them in the state like in the > > following? We can potentially add more of them especially on 64 bits we could > > afford 30 different works, this is just shrinking the RCU extended quiescent > > state counter space. Worst case that can happen is that RCU misses 65535 > > idle/user <-> kernel transitions and delays a grace period... > > We can make all this a 64bit only feature and use atomic_long_t :-) Works for me :)
