From: Joe Perches <joe@perches.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@au1.ibm.com>,
Ingo Molnar <mingo@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
"H. Peter Anvin" <hpa@zytor.com>,
James Hogan <james.hogan@imgtec.com>,
"James E.J. Bottomley" <jejb@parisc-linux.org>,
Helge Deller <deller@gmx.de>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH 7/7] x86: Tell about irq stack coverage
Date: Wed, 25 Sep 2013 17:40:27 -0700 [thread overview]
Message-ID: <1380156027.17366.39.camel@joe-AO722> (raw)
In-Reply-To: <20130925172121.00c23e416398139f4615943c@linux-foundation.org>
On Wed, 2013-09-25 at 17:21 -0700, Andrew Morton wrote:
> On Wed, 25 Sep 2013 16:08:20 -0700 Linus Torvalds <torvalds@linux-foundation.org> wrote:
>
> > On Wed, Sep 25, 2013 at 9:18 AM, Frederic Weisbecker <fweisbec@gmail.com> wrote:
> > > +#ifdef CONFIG_X86_64
> > > +# define __ARCH_IRQ_EXIT_ON_IRQ_STACK
> > > +#endif
> >
> > Ok, see the previous email, this should just be a single
> >
> > select IRQ_EXIT_ON_IRQ_STACK
> >
> > in under the "config X86_64" header in arch/x86/Kconfig.
> >
> > And as of right now, this patch series should do it for Power too,
> > since I just merged Ben's branch, which contained commit 0366a1c70b89
> > ("powerpc/irq: Run softirqs off the top of the irq stack"). Again,
> > just a single select in the arch/powerpc/Kconfig gile should be
> > sufficient.
> >
>
> This happens quite a lot. Perhaps Joe can cook us up a checkpatch
> rule. "#define [__]ARCH_HA" looks like a decent search pattern.
>
Huh? That matches all the ARCH_HAS_<foo> patterns.
What is it you want again?
next prev parent reply other threads:[~2013-09-26 0:40 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-25 16:17 [RFC PATCH 0/7] softirq: Consolidation and stack overrun fix v2 Frederic Weisbecker
2013-09-25 16:18 ` [PATCH 1/7] irq: Force hardirq exit's softirq processing on its own stack Frederic Weisbecker
2013-09-25 16:18 ` [PATCH 2/7] irq: Consolidate do_softirq() arch overriden implementations Frederic Weisbecker
2013-09-25 16:18 ` [PATCH 3/7] irq: Optimize call to softirq on hardirq exit Frederic Weisbecker
2013-09-25 16:18 ` [PATCH 4/7] irq: Improve a bit softirq debugging Frederic Weisbecker
2013-09-25 16:18 ` [PATCH 5/7] irq: Justify the various softirq stack choices Frederic Weisbecker
2013-09-25 16:18 ` [PATCH 6/7] irq: Optimize softirq stack selection in irq exit Frederic Weisbecker
2013-09-25 23:04 ` Linus Torvalds
2013-09-26 7:12 ` Frederic Weisbecker
2013-09-25 16:18 ` [PATCH 7/7] x86: Tell about irq stack coverage Frederic Weisbecker
2013-09-25 23:08 ` Linus Torvalds
2013-09-26 0:21 ` Andrew Morton
2013-09-26 0:40 ` Joe Perches [this message]
2013-09-26 1:26 ` Linus Torvalds
2013-09-26 2:00 ` [PATCH] checkpatch: Add test for #defines of ARCH_HAS_<foo> Joe Perches
2013-09-26 2:32 ` Andrew Morton
2013-09-26 2:40 ` Joe Perches
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1380156027.17366.39.camel@joe-AO722 \
--to=joe@perches.com \
--cc=akpm@linux-foundation.org \
--cc=benh@kernel.crashing.org \
--cc=davem@davemloft.net \
--cc=deller@gmx.de \
--cc=fweisbec@gmail.com \
--cc=heiko.carstens@de.ibm.com \
--cc=hpa@zytor.com \
--cc=james.hogan@imgtec.com \
--cc=jejb@parisc-linux.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=paulus@au1.ibm.com \
--cc=peterz@infradead.org \
--cc=schwidefsky@de.ibm.com \
--cc=tglx@linutronix.de \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).