netdev - Re: xfrm in RT

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Message-ID: <Z4oSIkXb8e3GJSaC@gauss3.secunet.de>
Date: Fri, 17 Jan 2025 09:17:38 +0100
From: Steffen Klassert <steffen.klassert@...unet.com>
To: Sebastian Sewior <bigeasy@...utronix.de>
CC: Alexei Starovoitov <alexei.starovoitov@...il.com>, Network Development
	<netdev@...r.kernel.org>, Jakub Kicinski <kuba@...nel.org>
Subject: Re: xfrm in RT

On Wed, Dec 18, 2024 at 05:07:45PM +0100, Sebastian Sewior wrote:
> On 2024-12-18 16:44:27 [+0100], To Steffen Klassert wrote:
> > time (your current get_cpu() -> put_cpu() span) you could do something
> > like
> 
> While at, may I promote rcuref? This would get rid of your cmpxchg()
> loop that you have otherwise in refcount_inc_not_zero(). In case you
> have performance test:

I have currently no test setup running that could show a performance
difference, but anyway the change looks OK to me.