From: Jarek Poplawski <jarkao2@gmail.com>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "Martin MOKREJŠ" <mmokrejs@ribosome.natur.cuni.cz>,
akpm@linux-foundation.org, netdev@vger.kernel.org,
bugme-daemon@bugzilla.kernel.org, vegard.nossum@gmail.com,
a.p.zijlstra@chello.nl, davem@davemloft.net
Subject: Re: [Bugme-new] [Bug 12515] New: possible circular locking #0: (sk_lock-AF_PACKET){--..}, at: [<c1279838>] sock_setsockopt+0x12b/0x4a4
Date: Fri, 30 Jan 2009 13:56:17 +0000 [thread overview]
Message-ID: <20090130135617.GA16106@ff.dom.local> (raw)
In-Reply-To: <20090130124947.GA6886@gondor.apana.org.au>
On Fri, Jan 30, 2009 at 11:49:47PM +1100, Herbert Xu wrote:
...
> Dave pointed out that a spin lock is illegal for this purpose
> as vm_insert_page can do a GFP_KERNEL allocation. So I've added
> a mutex for this.
...
> I resisted the temptation to create a new spin lock because the
> mmap path isn't exactly common.
So, Dave is stronger than the temptation...
Jarek P.
next prev parent reply other threads:[~2009-01-30 13:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-12515-10286@http.bugzilla.kernel.org/>
2009-01-27 21:43 ` [Bugme-new] [Bug 12515] New: possible circular locking #0: (sk_lock-AF_PACKET){--..}, at: [<c1279838>] sock_setsockopt+0x12b/0x4a4 Andrew Morton
2009-01-27 21:53 ` Martin MOKREJŠ
2009-01-28 1:15 ` Martin MOKREJŠ
2009-01-30 12:49 ` Herbert Xu
2009-01-30 13:56 ` Jarek Poplawski [this message]
2009-01-30 22:01 ` Herbert Xu
2009-01-30 22:05 ` David Miller
2009-01-30 17:17 ` Martin MOKREJŠ
2009-01-30 22:13 ` David Miller
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