Re: [PATCH v2] x86, locking/spinlocks: Remove paravirt_ticketlocks_enabled
From: Boris Ostrovsky
Date: Thu Jan 12 2017 - 16:43:06 EST
> diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
> index e8a9ea7..25a7c43 100644
> --- a/arch/x86/xen/spinlock.c
> +++ b/arch/x86/xen/spinlock.c
> @@ -141,25 +141,6 @@ void __init xen_init_spinlocks(void)
> pv_lock_ops.vcpu_is_preempted = PV_CALLEE_SAVE(xen_vcpu_stolen);
> }
>
> -/*
> - * While the jump_label init code needs to happend _after_ the jump labels are
> - * enabled and before SMP is started. Hence we use pre-SMP initcall level
> - * init. We cannot do it in xen_init_spinlocks as that is done before
> - * jump labels are activated.
> - */
> -static __init int xen_init_spinlocks_jump(void)
> -{
> - if (!xen_pvspin)
> - return 0;
> -
> - if (!xen_domain())
> - return 0;
> -
> - static_key_slow_inc(¶virt_ticketlocks_enabled);
> - return 0;
> -}
> -early_initcall(xen_init_spinlocks_jump);
> -
> static __init int xen_parse_nopvspin(char *arg)
> {
> xen_pvspin = false;
Xen bits:
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>