On Wed, Apr 06, 2022, Li RongQing wrote: > pi_wakeup_handler is used to wakeup the sleep vCPUs by posted irq > list_for_each_entry is used in it, and whose input is other function > per_cpu(), That cause that per_cpu() be invoked at least twice when > there is one sleep vCPU > > so optimize pi_wakeup_handler it by reading once and same to per CPU > spinlock > > Signed-off-by: Li RongQing <lirongqing@xxxxxxxxx> > --- Reviewed-by: Sean Christopherson <seanjc@xxxxxxxxxx>
