netdev - Re: [PATCH net-next] tcp: switch pacing timer to softirq based hrtimer

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Date:   Thu, 10 May 2018 18:00:31 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     eric.dumazet@...il.com
Cc:     edumazet@...gle.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] tcp: switch pacing timer to softirq based
 hrtimer

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Thu, 10 May 2018 13:55:00 -0700

> 
> 
> On 05/10/2018 12:49 PM, Eric Dumazet wrote:
>> linux-4.16 got support for softirq based hrtimers.
>> TCP can switch its pacing hrtimer to this variant, since this
>> avoids going through a tasklet and some atomic operations.
>> 
> 
> I need to send a V2, adding a test of hrtimer_cancel() return value
> in tcp_clear_xmit_timers() to eventually release the socket reference.

Ok.