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Groups > linux.kernel > #1460424

RE: [PATCH net 2/4] hv_netvsc: reset vf_inject on VF removal

From Yuval Mintz <Yuval.Mintz@qlogic.com>
Newsgroups linux.kernel
Subject RE: [PATCH net 2/4] hv_netvsc: reset vf_inject on VF removal
Date 2016-08-11 13:50 +0200
Message-ID <s4WEN-3hd-5@gated-at.bofh.it> (permalink)
References <s4VSv-2Iy-13@gated-at.bofh.it> <s4VSv-2Iy-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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> +static void netvsc_inject_enable(struct net_device_context
> +*net_device_ctx) {
> +	net_device_ctx->vf_inject = true;
> +}
> +
> +static void netvsc_inject_disable(struct net_device_context
> +*net_device_ctx) {
> +	net_device_ctx->vf_inject = false;
> +
> +	/* Wait for currently active users to drain out. */
> +	while (atomic_read(&net_device_ctx->vf_use_cnt) != 0)
> +		udelay(50);
> +}

That was already the behavior before, but are you certain you
want to unconditionally block without any possible timeout?

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Thread

[PATCH net 2/4] hv_netvsc: reset vf_inject on VF removal Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-08-11 13:00 +0200
  RE: [PATCH net 2/4] hv_netvsc: reset vf_inject on VF removal Yuval Mintz <Yuval.Mintz@qlogic.com> - 2016-08-11 13:50 +0200
    Re: [PATCH net 2/4] hv_netvsc: reset vf_inject on VF removal Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-08-11 14:20 +0200
      Re: [PATCH net 2/4] hv_netvsc: reset vf_inject on VF removal Stephen Hemminger <stephen@networkplumber.org> - 2016-08-12 16:50 +0200
  Re: [PATCH net 2/4] hv_netvsc: reset vf_inject on VF removal David Miller <davem@davemloft.net> - 2016-08-13 05:50 +0200
  [RFC 2/2] netvsc: use RCU for VF net device reference Stephen Hemminger <stephen@networkplumber.org> - 2016-08-14 13:20 +0200
    Re: [RFC 2/2] netvsc: use RCU for VF net device reference Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-08-15 12:10 +0200
  [RFC 1/2] netvsc: reference counting fix Stephen Hemminger <stephen@networkplumber.org> - 2016-08-14 13:30 +0200
    Re: [RFC 1/2] netvsc: reference counting fix David Miller <davem@davemloft.net> - 2016-08-15 06:40 +0200

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