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Message-ID: <987664A83D2D224EAE907B061CE93D530160554808@orsmsx505.amr.corp.intel.com>
Date:	Tue, 28 Sep 2010 21:55:01 -0700
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Kyle McMartin <kyle@...artin.ca>
CC:	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	Christoph Hellwig <hch@...radead.org>,
	"linux-alpha@...r.kernel.org" <linux-alpha@...r.kernel.org>,
	"linux-cris-kernel@...s.com" <linux-cris-kernel@...s.com>,
	"linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
	Yoshinori Sato <ysato@...rs.sourceforge.jp>,
	Hirokazu Takata <takata@...ux-m32r.org>,
	Greg Ungerer <gerg@...inux.org>, Jeff Dike <jdike@...toit.com>,
	"linux-parisc@...r.kernel.org" <linux-parisc@...r.kernel.org>,
	Chris Zankel <chris@...kel.net>,
	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>
Subject: RE: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing
 __do_IRQ() code

> Did you end up solving this? ia64 iosapic and parisc iosapic still look
> fairly similar... I hit the same issue of ->end() not being called in
> the handle_level_irq path and ended up just folding in the missing bit
> to ->unmask (we were already EOI the IOSAPIC, but missing the EOI for
> the parisc cpu.)

Kyle,

Yes. Take a look in today's linux-next kernel (tag next-20100929)
for commit: 5d4bff94f9e0877a85b4dc573eb7a3f1d97c13ae

Essentially I just added an "unmask_irq()" call into the ->end
routine, renamed it, and used it as ->unmask.

It seems to work okay - I tried migrating interrupts around by
poking at /proc/irq/NNN/smp_affinity - and that still works.

-Tony
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