RE: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing __do_IRQ() code
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- To: Kyle McMartin <kyle@xxxxxxxxxxx>
- Subject: RE: [RFC trollpatch 1/1] genirq: Remove the fits all and nothing __do_IRQ() code
- From: "Luck, Tony" <tony.luck@xxxxxxxxx>
- Date: Tue, 28 Sep 2010 21:55:01 -0700
- Accept-language: en-US
- Acceptlanguage: en-US
- Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, "linux-alpha@xxxxxxxxxxxxxxx" <linux-alpha@xxxxxxxxxxxxxxx>, "linux-cris-kernel@xxxxxxxx" <linux-cris-kernel@xxxxxxxx>, "linux-ia64@xxxxxxxxxxxxxxx" <linux-ia64@xxxxxxxxxxxxxxx>, Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>, Hirokazu Takata <takata@xxxxxxxxxxxxxx>, Greg Ungerer <gerg@xxxxxxxxxxx>, Jeff Dike <jdike@xxxxxxxxxxx>, "linux-parisc@xxxxxxxxxxxxxxx" <linux-parisc@xxxxxxxxxxxxxxx>, Chris Zankel <chris@xxxxxxxxxx>, "linux-arch@xxxxxxxxxxxxxxx" <linux-arch@xxxxxxxxxxxxxxx>
- In-reply-to: <20100929004607.GA18362@xxxxxxxxxxxxxxxxxxxxxx>
- List-id: <linux-ia64.vger.kernel.org>
- References: <20100908152036.643594727@xxxxxxxxxxxxx> <AANLkTikVHO9DmyTX==CwViDK1rP0masBwjMakHZ0U=kZ@xxxxxxxxxxxxxx> <alpine.LFD.2.00.1009271953390.2416@xxxxxxxxxxxxxxxxxxxxxxx> <987664A83D2D224EAE907B061CE93D5301604712B4@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> <alpine.LFD.2.00.1009272048100.2416@xxxxxxxxxxxxxxxxxxxxxxx> <987664A83D2D224EAE907B061CE93D530160471328@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> <20100929004607.GA18362@xxxxxxxxxxxxxxxxxxxxxx>
- Thread-index: Actfb7cM3c15QnU1TyubPKQVIk/3kAAIeHnw
- Thread-topic: [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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