On Tue, 16 Oct 2018 18:55:45 +0200 Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> wrote: > Also, ptr->var++ is not an atomic operation even on 64bit CPUs. Which > means if try_fill_recv() runs on CPU0 (via virtnet_receive()) then the > worker might run on CPU1. On modern CPU's increment of native types is atomic but not locked. u64_stats_update_begin is a no-op on UP and also if BIT_PER_LONG != 32 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
