From: Yinghai Lu <yinghai@kernel.org>
To: Ingo Molnar <mingo@elte.hu>, Mike Travis <travis@sgi.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH] x86: use nr_cpus in max_nr_irqs()
Date: Sun, 11 Jan 2009 21:43:49 -0800 [thread overview]
Message-ID: <496AD895.10701@kernel.org> (raw)
Impact: get more small nr_irqs
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
arch/x86/include/asm/apicdef.h | 7 +------
arch/x86/include/asm/irq_vectors.h | 4 ++--
2 files changed, 3 insertions(+), 8 deletions(-)
Index: linux-2.6/arch/x86/include/asm/irq_vectors.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/irq_vectors.h
+++ linux-2.6/arch/x86/include/asm/irq_vectors.h
@@ -122,8 +122,8 @@
/* defined as a macro so nr_irqs = max_nr_irqs(nr_cpu_ids) can be used */
# define max_nr_irqs(nr_cpus) \
- ((8 * nr_cpus) > (32 * MAX_IO_APICS) ? \
- (NR_VECTORS + (8 * NR_CPUS)) : \
+ ((8 * (nr_cpus)) > (32 * MAX_IO_APICS) ? \
+ (NR_VECTORS + (8 * (nr_cpus)) : \
(NR_VECTORS + (32 * MAX_IO_APICS))) \
# define NR_IRQS max_nr_irqs(NR_CPUS)
next reply other threads:[~2009-01-12 5:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-12 5:43 Yinghai Lu [this message]
2009-01-12 18:31 ` Mike Travis
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