From: Rusty Russell <rusty@rustcorp.com.au>
To: Nick Piggin <npiggin@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: Is module refcounting racy?
Date: Mon, 29 Mar 2010 19:42:56 +1030 [thread overview]
Message-ID: <201003291942.56706.rusty@rustcorp.com.au> (raw)
In-Reply-To: <20100318105533.GE25636@laptop>
On Thu, 18 Mar 2010 09:25:34 pm Nick Piggin wrote:
> Hey,
>
> I've been looking at weird and wonderful ways to do scalable refcounting,
> for the vfs...
>
> Sadly, module refcounting doesn't fit my bill. But as far as I could see,
> it is racy.
Other than for advisory purposes, the refcount is only checked against zero
under stop_machine. For exactly this reason.
Hope that helps,
Rusty.
next prev parent reply other threads:[~2010-03-29 9:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-18 10:55 Is module refcounting racy? Nick Piggin
2010-03-29 9:12 ` Rusty Russell [this message]
2010-03-29 16:58 ` Nick Piggin
2010-03-31 3:44 ` Rusty Russell
2010-04-01 8:09 ` Nick Piggin
2010-04-01 15:55 ` Linus Torvalds
2010-04-06 2:39 ` Rusty Russell
2010-04-06 5:05 ` Nick Piggin
2010-04-06 6:19 ` Eric Dumazet
2010-04-06 7:38 ` Nick Piggin
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