From: Andrew Morton <akpm@linux-foundation.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: lenb@kernel.org, ebiederm@xmission.com, protasnb@gmail.com,
ak@suse.de, tglx@linutronix.de, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] i386 IOAPIC: de-fang IRQ compression
Date: Tue, 4 Dec 2007 16:39:46 -0800 [thread overview]
Message-ID: <20071204163946.63ac73ce.akpm@linux-foundation.org> (raw)
In-Reply-To: <20071204122649.GB27286@elte.hu>
On Tue, 4 Dec 2007 13:26:49 +0100
Ingo Molnar <mingo@elte.hu> wrote:
> * Len Brown <lenb@kernel.org> wrote:
>
> > So while the irq compression code on i386 should really
> > be deleted -- even before merging the x86_64 irq-overhaul,
> > this patch simply disables it on all high volume systems
> > to avoid problems #1 and #2 on most all i386 systems.
> >
> > A large system with pin numbers >=64 will still have compression
> > to conserve limited IRQ numbers for sparse IOAPICS. However,
> > the vast majority of the planet, those with only pin numbers < 64
> > will use an identity GSI -> IRQ mapping.
> >
> > Signed-off-by: Len Brown <len.brown@intel.com>
>
> thanks for the patch and the extensive description. I've applied this to
> x86.git.
Len applied it to his tree too.
next prev parent reply other threads:[~2007-12-05 0:40 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-28 6:21 [PATCH] i386 IOAPIC: de-fang IRQ compression Len Brown
2007-11-28 7:09 ` Eric W. Biederman
2007-12-04 12:26 ` Ingo Molnar
2007-12-04 18:46 ` Eric W. Biederman
2007-12-04 20:55 ` Christian Kujau
2007-12-04 21:28 ` Ingo Molnar
2007-12-05 0:39 ` Andrew Morton [this message]
2007-12-05 9:48 ` Ingo Molnar
2007-12-07 2:41 ` Len Brown
2007-12-07 19:16 ` Eric W. Biederman
2007-12-07 20:26 ` Ingo Molnar
2007-12-07 20:31 ` Ingo Molnar
2007-12-07 21:09 ` Eric W. Biederman
2007-12-05 13:25 ` Natalie Protasevich
2007-12-05 23:25 ` Eric W. Biederman
2007-12-05 23:48 ` Natalie Protasevich
2007-12-06 2:20 ` Eric W. Biederman
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