Re: [PATCH V7 4/4] softirq: Allow early break the softirq processing loop

From: jun qian
Date: Mon Sep 28 2020 - 07:16:05 EST


Peter Zijlstra <peterz@xxxxxxxxxxxxx> 于2020年9月28日周一 下午5:20写道:
>
> On Tue, Sep 15, 2020 at 07:56:09PM +0800, qianjun.kernel@xxxxxxxxx wrote:
> > From: jun qian <qianjun.kernel@xxxxxxxxx>
> >
> > Allow terminating the softirq processing loop without finishing the vectors.
> >
> > Signed-off-by: jun qian <qianjun.kernel@xxxxxxxxx>
> > ---
> > 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 process.

> I've put my patches (and a bunch on top) in:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git core/softirq
>
> 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

>