From: Randy Dunlap <randy.dunlap@oracle.com>
To: Iwo Mergler <iwo@call-direct.com.au>
Cc: linux-kernel@vger.kernel.org, Jes Sorensen <jes@trained-monkey.org>
Subject: Re: Fix for genalloc locking
Date: Tue, 21 Oct 2008 08:39:49 -0700 [thread overview]
Message-ID: <20081021083949.3b1473c8.randy.dunlap@oracle.com> (raw)
In-Reply-To: <48F83400.90901@call-direct.com.au>
On Fri, 17 Oct 2008 16:43:12 +1000 Iwo Mergler wrote:
> Hi,
>
> I hit a little problem while using genalloc with a mix
> of interrupt/non-interrupt context. I believe the correct
> fix is to replace the locking calls with the _irqsave/_irqrestore
> variants. Patch follows.
>
> Is this correct?
>
> BTW, is there any documentation on the Lockdep warnings?
> What exactly is the meaning of {--+.} in
>
> (&pool->lock){--+.}, at: [<c0125d1c>] gen_pool_free+0x34/0x120
Did you read Documentation/lockdep-design.txt ?
---
~Randy
next prev parent reply other threads:[~2008-10-21 15:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-17 6:43 Iwo Mergler
2008-10-17 6:46 ` [PATCH] " Iwo Mergler
2008-10-21 15:39 ` Randy Dunlap [this message]
2008-10-21 22:20 ` Iwo Mergler
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