linux-kernel - Re: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing __do

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Message-ID: <20100929004607.GA18362@bombadil.infradead.org>
Date:	Tue, 28 Sep 2010 20:46:07 -0400
From:	Kyle McMartin <kyle@...artin.ca>
To:	"Luck, Tony" <tony.luck@...el.com>
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

On Mon, Sep 27, 2010 at 12:01:51PM -0700, Luck, Tony wrote:
> > Hmm, why isn't chip->unmask() sufficient ?
>  
> That's a good question.  I'll take a look at what ia64 is doing
> in the ->unmask() and ->end() functions to see if I can fix this
> with some code shuffling.
> 

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
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