linux-kernel - [PATCH 0/2] x86, Fix irq exhaustion issues with cpu hotplug

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Message-Id: <1399995575-3129-1-git-send-email-prarit@redhat.com>
Date:	Tue, 13 May 2014 11:39:33 -0400
From:	Prarit Bhargava <prarit@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Prarit Bhargava <prarit@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Seiji Aguchi <seiji.aguchi@....com>,
	Andi Kleen <ak@...ux.intel.com>,
	"K. Y. Srinivasan" <kys@...rosoft.com>,
	"Steven Rostedt (Red Hat)" <rostedt@...dmis.org>,
	Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 0/2] x86, Fix irq exhaustion issues with cpu hotplug

These patches have been previously submitted but appear to have been lost
on LKML.

There are still some issues with irq exhaustion when removing cpus.  These
two patches fix two serious bugs.  The first patch, from Yinghai Lu, corrects
the available vectors count for each cpu.  The second patch takes into account
the numa-awareness of an irq when reassigning the irq.

Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: x86@...nel.org
Cc: Seiji Aguchi <seiji.aguchi@....com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: "K. Y. Srinivasan" <kys@...rosoft.com>
Cc: "Steven Rostedt (Red Hat)" <rostedt@...dmis.org>
Cc: Yinghai Lu <yinghai@...nel.org>

Prarit Bhargava (1):
  x86, make check_irq_vectors_for_cpu_disable() aware of numa node irqs

Yinghai Lu (1):
  x86, irq: get correct available vectors for cpu disable

 arch/x86/kernel/irq.c |  158 ++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 116 insertions(+), 42 deletions(-)

-- 
1.7.9.3

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