From: Peter Zijlstra <peterz@infradead.org>
To: Joerg Roedel <joerg.roedel@amd.com>
Cc: Greg KH <greg@kroah.com>, Joerg Roedel <joro@8bytes.org>,
Jesse Barnes <jbarnes@virtuousgeek.org>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: pci_get_dev_by_id() from interrupt handlers
Date: Wed, 21 Apr 2010 12:21:11 +0200 [thread overview]
Message-ID: <1271845271.1776.74.camel@laptop> (raw)
In-Reply-To: <20100421100528.GG31537@amd.com>
On Wed, 2010-04-21 at 12:05 +0200, Joerg Roedel wrote:
>
> > Why not do the whole thing in an interrupt task as the whole thing
> > sounds like something that shouldn't be done in interrupt context,
> > right? Now that we have this type of functionality, we should take
> > advantage of it :)
>
> Ok, I think I move the IOMMU interrupt handling to a tasklet.
>
tasklet is softirq context, and is not what gregkh was talking about.
You'd still need to change the klist spinlock to be softirq-safe.
next prev parent reply other threads:[~2010-04-21 10:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-20 16:04 pci_get_dev_by_id() from interrupt handlers Joerg Roedel
2010-04-20 16:32 ` Greg KH
2010-04-20 17:35 ` Joerg Roedel
2010-04-20 17:52 ` Greg KH
2010-04-21 10:05 ` Joerg Roedel
2010-04-21 10:21 ` Peter Zijlstra [this message]
2010-04-21 10:41 ` Joerg Roedel
2010-04-21 10:46 ` Peter Zijlstra
2010-04-21 10:55 ` Joerg Roedel
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