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From: Suresh Siddha <suresh.b.siddha@intel.com>
To: "Maciej W. Rozycki" <macro@linux-mips.org>,
	hpa@zytor.com, mingo@elte.hu, tglx@linutronix.de,
	ebiederm@xmission.com, garyhade@us.ibm.com
Cc: linux-kernel@vger.kernel.org, Suresh Siddha <suresh.b.siddha@intel.com>
Subject: [patch 4/4] x86: remove unnecessary mdelay() from cpu_disable_common()
Date: Tue, 01 Dec 2009 15:31:18 -0800	[thread overview]
Message-ID: <20091201233335.232177348@sbs-t61.sc.intel.com> (raw)
In-Reply-To: 20091201233334.975416130@sbs-t61.sc.intel.com

[-- Attachment #1: fix_cpu_disable_mdelay.patch --]
[-- Type: text/plain, Size: 878 bytes --]

fixup_irqs() already has a mdelay(). Remove the extra and unnecessary mdelay()
from cpu_disable_common()

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
---
 arch/x86/kernel/smpboot.c |    9 ---------
 1 file changed, 9 deletions(-)

Index: tip/arch/x86/kernel/smpboot.c
===================================================================
--- tip.orig/arch/x86/kernel/smpboot.c
+++ tip/arch/x86/kernel/smpboot.c
@@ -1250,16 +1250,7 @@ static void __ref remove_cpu_from_maps(i
 void cpu_disable_common(void)
 {
 	int cpu = smp_processor_id();
-	/*
-	 * HACK:
-	 * Allow any queued timer interrupts to get serviced
-	 * This is only a temporary solution until we cleanup
-	 * fixup_irqs as we do for IA64.
-	 */
-	local_irq_enable();
-	mdelay(1);
 
-	local_irq_disable();
 	remove_siblinginfo(cpu);
 
 	/* It's now safe to remove this processor from the online map */



  parent reply	other threads:[~2009-12-02  0:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-01 23:31 [patch 1/4] x86, io-apic: move the effort of clearing remoteIRR explicitly before migrating the irq Suresh Siddha
2009-12-01 23:31 ` [patch 2/4] x86, ioapic: fix the EOI register detection mechanism Suresh Siddha
2009-12-02 10:43   ` [tip:x86/apic] x86, ioapic: Fix " tip-bot for Suresh Siddha
2009-12-01 23:31 ` [patch 3/4] x86, ioapic: document another case when level irq is seen as an edge Suresh Siddha
2009-12-02 10:43   ` [tip:x86/apic] x86, ioapic: Document " tip-bot for Suresh Siddha
2009-12-01 23:31 ` Suresh Siddha [this message]
2009-12-02 10:44   ` [tip:x86/apic] x86: Remove unnecessary mdelay() from cpu_disable_common() tip-bot for Suresh Siddha
2009-12-02 10:43 ` [tip:x86/apic] x86, io-apic: Move the effort of clearing remoteIRR explicitly before migrating the irq tip-bot for Maciej W. Rozycki

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