From: Neil Brown <neilb@suse.de>
To: Avi Kivity <avi@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>,
Kulikov Vasiliy <segooon@gmail.com>,
kernel-janitors@vger.kernel.org, Jens Axboe <jaxboe@fusionio.com>,
linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] md: do not use ++ in rcu_dereference() argument
Date: Fri, 17 Sep 2010 13:18:53 +1000 [thread overview]
Message-ID: <20100917131853.225f6fa1@notabene> (raw)
In-Reply-To: <4C921385.2080205@redhat.com>
On Thu, 16 Sep 2010 14:54:29 +0200
Avi Kivity <avi@redhat.com> wrote:
> On 09/06/2010 08:29 AM, Neil Brown wrote:
> > I've taken the opportunity to substantially re-write that code.
> >
> >
>
> It's better to have two patches, one a backportable one liner that fixes
> the bug, the other, on top, that cleans up the code but has no sematic
> changes.
>
> This makes it substantially easier to review. When considering the
> first patch you see the change plainly. When reviewing the second patch
> you make sure no semantic changes were made at all.
>
Good advice, I agree.
However the conversation seem have drifted towards viewing the new macro
definition as the bug, and the pre-increment in an argument as a valid thing
to do.
In that case, there is no bug to fix, just a code clean up required.
So I'm currently planning on just submitting that cleanup in the next merge
window, and leaving the rcu guys to 'fix' the macro.
Thanks,
NeilBrown
next prev parent reply other threads:[~2010-09-17 3:18 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-05 18:32 [PATCH] md: do not use ++ in rcu_dereference() argument Kulikov Vasiliy
2010-09-05 19:01 ` Sam Ravnborg
2010-09-05 19:23 ` Kulikov Vasiliy
2010-09-05 20:39 ` Sam Ravnborg
2010-09-06 5:29 ` Neil Brown
2010-09-06 7:43 ` walter harms
2010-09-06 11:05 ` Neil Brown
2010-09-06 19:21 ` Sam Ravnborg
2010-09-08 7:04 ` Neil Brown
2010-09-16 12:54 ` Avi Kivity
2010-09-17 3:18 ` Neil Brown [this message]
2010-09-06 20:10 ` Arnd Bergmann
2010-09-07 19:21 ` Kulikov Vasiliy
2010-09-07 20:00 ` Arnd Bergmann
2010-09-07 20:50 ` Paul E. McKenney
2010-09-09 15:14 ` Arnd Bergmann
2010-09-10 3:46 ` Paul E. McKenney
2010-09-14 0:33 ` Paul E. McKenney
2010-09-15 12:28 ` Arnd Bergmann
2010-09-16 6:15 ` Paul E. McKenney
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