From: Jakub Kicinski <kuba@kernel.org>
To: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Eric Dumazet <edumazet@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
Eric Dumazet <eric.dumazet@gmail.com>,
David Miller <davem@davemloft.net>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: Remove __napi_schedule_irqoff?
Date: Sun, 18 Oct 2020 11:02:19 -0700 [thread overview]
Message-ID: <20201018110219.1b635ad9@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> (raw)
In-Reply-To: <92aed1ab-efa3-c667-7f20-8a2b8fc67469@gmail.com>
On Sun, 18 Oct 2020 19:57:53 +0200 Heiner Kallweit wrote:
> > Dunno how acceptable this is to run in an IRQ handler on RT..
>
> If I understand this code right then it's not a loop that actually
> waits for something. It just retries if the value of n->state has
> changed in between. So I don't think we'll ever see the loop being
> executed more than twice.
Right, but WCET = inf. IDK if that's acceptable.
next prev parent reply other threads:[~2020-10-18 18:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-17 13:45 Remove __napi_schedule_irqoff? Heiner Kallweit
2020-10-17 23:29 ` Jakub Kicinski
2020-10-18 8:02 ` Eric Dumazet
2020-10-18 8:20 ` Heiner Kallweit
2020-10-18 17:19 ` Jakub Kicinski
2020-10-18 17:57 ` Heiner Kallweit
2020-10-18 18:02 ` Jakub Kicinski [this message]
2020-10-19 10:33 ` Thomas Gleixner
2020-10-19 17:55 ` Jakub Kicinski
2020-10-23 19:21 ` Grygorii Strashko
2020-10-18 9:55 ` Thomas Gleixner
2020-10-18 11:57 ` Heiner Kallweit
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