From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
lkml <linux-kernel@vger.kernel.org>,
"linux-arch" <linux-arch@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [RFC][PATCH] irq: remove IRQF_DISABLED
Date: Mon, 2 Mar 2009 20:18:03 +0100 [thread overview]
Message-ID: <200903022018.03736.bzolnier@gmail.com> (raw)
In-Reply-To: <alpine.LFD.2.00.0903021101460.3111@localhost.localdomain>
On Monday 02 March 2009, Linus Torvalds wrote:
>
> On Mon, 2 Mar 2009, Bartlomiej Zolnierkiewicz wrote:
> >
> > Hmm, I said nothing about how it is implemented in the IDE code itself. :)
>
> Bart, you're missing the point. I'm _also_ not at all interested in how
> it's implemented in the IDE code.
>
> The whole - and only - point is that there are drivers that are _known_ to
> require non-IRQF_DISABLED semantics. IDE is one such one.
>
> > Fixing this is on long-term TODO (there was just a ton of more high-prio
> > stuff to take care of first).
>
> Even if you can fix IDE to do everything using softirq's or other tricks
> (threads, whatever), nothing really changes. It just means that now there
> is one less driver that may need the non-IRQF_DISABLED semantics.
I didn't meant non-IRQF_DISABLED semantics (I see absolutely no point in
changing it) but IDE's internal "disable IRQs just to enable them" issue.
[ Sorry for poorly explaining things. ]
Thanks,
Bart
next prev parent reply other threads:[~2009-03-02 19:16 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-02 12:21 [RFC][PATCH] irq: remove IRQF_DISABLED Peter Zijlstra
2009-03-02 14:43 ` Ingo Molnar
2009-03-02 15:47 ` Matthew Wilcox
2009-03-02 15:59 ` Peter Zijlstra
2009-03-02 16:32 ` Matthew Wilcox
2009-03-02 21:01 ` Russell King
2009-03-02 21:17 ` Ingo Molnar
2009-03-02 17:11 ` Linus Torvalds
2009-03-02 17:55 ` Bartlomiej Zolnierkiewicz
2009-03-02 18:02 ` Peter Zijlstra
2009-03-02 18:07 ` Peter Zijlstra
2009-03-02 18:27 ` Bartlomiej Zolnierkiewicz
2009-03-02 18:29 ` Linus Torvalds
2009-03-02 18:48 ` Bartlomiej Zolnierkiewicz
2009-03-02 19:06 ` Linus Torvalds
2009-03-02 19:18 ` Bartlomiej Zolnierkiewicz [this message]
2009-03-02 17:56 ` Peter Zijlstra
2009-03-02 18:45 ` Vadim Lobanov
2009-03-02 18:54 ` Linus Torvalds
2009-03-05 15:40 ` Mark Lord
2009-03-02 21:17 ` Alan Cox
2009-03-06 8:58 ` Benjamin Herrenschmidt
2009-03-06 9:12 ` Peter Zijlstra
2009-03-06 9:59 ` Benjamin Herrenschmidt
2009-03-06 10:05 ` Benjamin Herrenschmidt
2009-03-06 10:24 ` Peter Zijlstra
2009-03-06 17:02 ` Peter Zijlstra
2009-03-06 21:40 ` Benjamin Herrenschmidt
2009-03-02 17:55 ` Andrew Morton
2009-03-02 18:10 ` Peter Zijlstra
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