linux-kernel - Re: [PATCH] x86_64 irq: reset more to default when clear irq_vector for destroy

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Date:	Fri, 27 Oct 2006 22:44:36 -0700
From:	"Yinghai Lu" <yinghai.lu@....com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	"Muli Ben-Yehuda" <muli@...ibm.com>, "Andi Kleen" <ak@....de>,
	"Andrew Morton" <akpm@...l.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86_64 irq: reset more to default when clear irq_vector for destroy_irq

revised version according to Eric. and it can be applied clearly to
current Linus's Tree.

Clear the irq releated entries in irq_vector, irq_domain and vector_irq
instead of clearing irq_vector only. So when new irq is created, it
could reuse that vector. (actually is the second loop scanning from
FIRST_DEVICE_VECTOR+8). This could avoid the vectors are used up
with enough module inserting and removing

Cc: Eric W. Biedierman <ebiederm@...ssion.com>
Cc: Muli Ben-Yehuda <muli@...ibm.com>
Signed-off-By: Yinghai Lu <yinghai.lu@....com>

View attachment "io_apic_clear_irq_vector_1027.diff" of type "text/x-patch" (898 bytes)