Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <20200915115609.85106-1-qianjun.kernel@gmail.com>
 <20200915115609.85106-5-qianjun.kernel@gmail.com> <20200928092039.GB2628@hirez.programming.kicks-ass.net>
In-Reply-To: <20200928092039.GB2628@hirez.programming.kicks-ass.net>
From:   jun qian <qianjun.kernel@gmail.com>
Date:   Mon, 28 Sep 2020 19:15:50 +0800
Message-ID: <CAKc596KNqQg+EOu=dkbXnZYHw3011dvkWx6Y-PXnK_wDehfeZg@mail.gmail.com>
Subject: Re: [PATCH V7 4/4] softirq: Allow early break the softirq processing loop
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     Thomas Gleixner <tglx@linutronix.de>, will@kernel.org,
        luto@kernel.org, linux-kernel@vger.kernel.org,
        Yafang Shao <laoar.shao@gmail.com>, qais.yousef@arm.com,
        Uladzislau Rezki <urezki@gmail.com>, frederic@kernel.org
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

Peter Zijlstra <peterz@infradead.org> =E4=BA=8E2020=E5=B9=B49=E6=9C=8828=E6=
=97=A5=E5=91=A8=E4=B8=80 =E4=B8=8B=E5=8D=885:20=E5=86=99=E9=81=93=EF=BC=9A
>
> On Tue, Sep 15, 2020 at 07:56:09PM +0800, qianjun.kernel@gmail.com wrote:
> > From: jun qian <qianjun.kernel@gmail.com>
> >
> > Allow terminating the softirq processing loop without finishing the vec=
tors.
> >
> > Signed-off-by: jun qian <qianjun.kernel@gmail.com>
> > ---
> >  kernel/softirq.c | 113 ++++++++++++++++++++++++++++++++++++++++++++---=
--------
> >  1 file changed, 91 insertions(+), 22 deletions(-)
>
> This is still a ginormous patch for something that should be simple.
>

Yes, i think so. Because of the left pending bits need to be processed,
the code is going to be not simple.I will try my best to simplify this proc=
ess.

> I've put my patches (and a bunch on top) in:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git core/sof=
tirq
>
> but got a fairly significant regression report from 0day on that, and
> haven't had time/motivation to look at that.
>

OK, I am trying to slove the significant regression problem, maybe it
needs some time.

thanks

>