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Message-ID: <202007161223.19FB352B5@keescook>
Date: Thu, 16 Jul 2020 12:24:12 -0700
From: Kees Cook <keescook@...omium.org>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: Peter Zijlstra <peterz@...radead.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Thomas Gleixner <tglx@...utronix.de>,
Allen Pais <allen.lkml@...il.com>,
Oscar Carter <oscar.carter@....com>,
Romain Perier <romain.perier@...il.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Kevin Curtis <kevin.curtis@...site.co.uk>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Harald Freudenberger <freude@...ux.ibm.com>,
Heiko Carstens <hca@...ux.ibm.com>,
Vasily Gorbik <gor@...ux.ibm.com>,
Christian Borntraeger <borntraeger@...ibm.com>,
Jiri Slaby <jslaby@...e.com>, Felipe Balbi <balbi@...nel.org>,
Jason Wessel <jason.wessel@...driver.com>,
Daniel Thompson <daniel.thompson@...aro.org>,
Douglas Anderson <dianders@...omium.org>,
Mitchell Blank Jr <mitch@...oth.com>,
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Karsten Graul <kgraul@...ux.ibm.com>,
Ursula Braun <ubraun@...ux.ibm.com>,
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Nishka Dasgupta <nishkadg.linux@...il.com>,
Masahiro Yamada <masahiroy@...nel.org>,
Stephen Boyd <swboyd@...omium.org>,
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Wambui Karuga <wambui.karugax@...il.com>,
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Kyungtae Kim <kt0755@...il.com>,
Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
Jonathan Corbet <corbet@....net>, Will Deacon <will@...nel.org>,
linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
netdev@...r.kernel.org, linux-s390@...r.kernel.org,
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Subject: Re: [PATCH 0/3] Modernize tasklet callback API
On Thu, Jul 16, 2020 at 10:15:38AM +0200, Sebastian Andrzej Siewior wrote:
> On 2020-07-16 09:57:18 [+0200], Peter Zijlstra wrote:
> >
> > there appear to be hardly any users left.. Can't we stage an extinction
> > event here instead?
>
> Most of the time the tasklet is scheduled from an interrupt handler. So
> we could get rid of these tasklets by using threaded IRQs.
Perhaps I can add a comment above the tasklet API area in interrupt.h?
--
Kees Cook
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