On Fri, 04 Nov 2022 06:20:59 +0000, Usama Arif <usama.arif@xxxxxxxxxxxxx> wrote: > > This patchset adds support for vcpu_is_preempted in arm64, which allows the guest > to check if a vcpu was scheduled out, which is useful to know incase it was > holding a lock. vcpu_is_preempted can be used to improve > performance in locking (see owner_on_cpu usage in mutex_spin_on_owner, > mutex_can_spin_on_owner, rtmutex_spin_on_owner and osq_lock) and scheduling > (see available_idle_cpu which is used in several places in kernel/sched/fair.c > for e.g. in wake_affine to determine which CPU can run soonest): Please refrain from reposting a series only two days after the initial one. One week is a minimum, and only if there is enough review comments to justify a respin (there were no valuable comments so far). Reposting more often only results in the review process being exponentially delayed. Thanks, M. -- Without deviation from the norm, progress is not possible.
