From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dimitri Sivanich <sivanich@sgi.com>
Date: Fri, 17 Mar 2006 00:31:14 +0000
Subject: [PATCH] Add SA_PERCPU_IRQ flag support
Message-Id: <20060317003114.GA1735@sgi.com>
List-Id: <linux-ia64.vger.kernel.org>
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To: Linus Torvalds <torvalds@osdl.org>
Cc: linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org, Christoph Hellwig <hch@infradead.org>, Christoph Lameter <clameter@sgi.com>, Jes Sorensen <jes@sgi.com>

The generic request_irq/setup_irq code should support the SA_PERCPU_IRQ flag.

Not sure why it was left out, but this patch adds that support.

Signed-off-by: Dimitri Sivanich <sivanich@sgi.com>

Index: linux/kernel/irq/manage.c
=================================--- linux.orig/kernel/irq/manage.c	2006-03-16 14:05:27.957927445 -0600
+++ linux/kernel/irq/manage.c	2006-03-16 14:06:02.283661867 -0600
@@ -201,6 +201,9 @@ int setup_irq(unsigned int irq, struct i
 	 * The following block of code has to be executed atomically
 	 */
 	spin_lock_irqsave(&desc->lock,flags);
+	if (new->flags & SA_PERCPU_IRQ) {
+		desc->status |= IRQ_PER_CPU;
+	}
 	p = &desc->action;
 	if ((old = *p) != NULL) {
 		/* Can't share interrupts unless both agree to */