On Tue, 17 Oct 2023 at 12:17, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > > On Tue, Oct 17, 2023 at 09:42:13AM +0200, Ard Biesheuvel wrote: > > > One question I have is whether the sequence > > > > spin_lock_irqsave(&unaccepted_memory_lock, flags); > > ... > > spin_unlock(&unaccepted_memory_lock); > > arch_accept_memory(phys_start, phys_end); > > spin_lock(&unaccepted_memory_lock); > > ... > > spin_unlock_irqrestore(&unaccepted_memory_lock, flags); > > > > is considered sound and is supported by all architectures? > > Yes. Thanks for the clarification I've queued this up now (with the cpu_relax() removed)
