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Date: Mon, 4 Nov 2019 00:02:22 +0200
From: Konstantin Belousov <kostikbel@gmail.com>
To: Vladimir Kondratyev <wulf@FreeBSD.org>
Cc: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: Re: svn commit: r354322 - head/sys/dev/ichiic
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On Sun, Nov 03, 2019 at 09:17:51PM +0000, Vladimir Kondratyev wrote:
> Author: wulf
> Date: Sun Nov  3 21:17:50 2019
> New Revision: 354322
> URL: https://svnweb.freebsd.org/changeset/base/354322
> 
> Log:
>   [ig4] Convert ithread interrupt handler to filter based one.
And why ?

You need some reason to use filters/spinlocks, otherwise it only
taxes system latency.