From: Thomas Gleixner <tglx@linutronix.de>
To: Dimitri Sivanich <sivanich@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>,
mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org,
yinghai@kernel.org, suresh.b.siddha@intel.com
Subject: Re: [PATCH] Remove SMP ifdef from irq_desc
Date: Mon, 16 Nov 2009 11:49:08 +0100 (CET) [thread overview]
Message-ID: <alpine.LFD.2.00.0911161120550.24119@localhost.localdomain> (raw)
In-Reply-To: <20091110185716.GA4665@sgi.com>
On Tue, 10 Nov 2009, Dimitri Sivanich wrote:
> Remove the CONFIG_SMP ifdef from the irq_desc structure and consolidate
> initializers for the smp/non-smp cases.
>
> For the x86_32 case, this adds 4 bytes of text and 128 bytes of data.
> For the x86_64 case, this adds 15 bytes of text and 240 bytes of data.
Hmm, on ARM and PowerPC the increase of data is 4K and I expect it's
minimum the same on other architectures. Not sure if we should worry
about it, but it's definitely a significant number.
Thanks,
tglx
next prev parent reply other threads:[~2009-11-16 10:50 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-30 16:02 [PATCH] x86: SGU UV Fix irq affinity for hub based interrupts Dimitri Sivanich
2009-09-30 16:10 ` Robin Holt
2009-10-12 19:34 ` Ingo Molnar
2009-10-13 20:32 ` [PATCH] x86: Move SGI UV functionality out of generic IO-APIC code Dimitri Sivanich
2009-10-14 8:18 ` [tip:x86/apic] x86, apic: " tip-bot for Dimitri Sivanich
[not found] ` <20091012193704.GA8708@sgi.com>
[not found] ` <20091014071014.GK784@elte.hu>
[not found] ` <20091014120225.GA9674@sgi.com>
[not found] ` <20091014122653.GA15048@elte.hu>
2009-10-15 1:13 ` [PATCH v2] x86/apic: limit irq affinity Dimitri Sivanich
2009-10-15 5:30 ` Yinghai Lu
2009-10-15 13:50 ` Dimitri Sivanich
2009-10-20 12:56 ` Dimitri Sivanich
2009-10-20 13:38 ` [PATCH v3] " Dimitri Sivanich
2009-10-20 18:58 ` Yinghai Lu
2009-10-21 1:06 ` Dimitri Sivanich
2009-10-21 1:12 ` [PATCH v4] " Dimitri Sivanich
2009-11-08 13:07 ` [tip:x86/apic] x86/apic: Limit " tip-bot for Dimitri Sivanich
2009-11-08 14:53 ` Ingo Molnar
2009-11-09 16:02 ` Dimitri Sivanich
2009-11-10 4:40 ` Ingo Molnar
2009-11-10 16:31 ` Dimitri Sivanich
2009-11-10 17:19 ` Ingo Molnar
2009-11-10 18:57 ` [PATCH] Remove SMP ifdef from irq_desc Dimitri Sivanich
2009-11-16 10:49 ` Thomas Gleixner [this message]
2009-10-14 8:17 ` [tip:x86/apic] x86: SGI UV: Fix irq affinity for hub based interrupts tip-bot for Dimitri Sivanich
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