linux-kernel - Re: [PATCH 1/8] idr: fix overflow bug for the max-high layer

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Message-ID: <20140418171022.GB23576@htj.dyndns.org>
Date:	Fri, 18 Apr 2014 13:10:22 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Lai Jiangshan <laijs@...fujitsu.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, stable@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jean Delvare <jdelvare@...e.de>,
	Monam Agarwal <monamagarwal123@...il.com>,
	Jeff Layton <jlayton@...hat.com>,
	Andreas Gruenbacher <agruen@...bit.com>,
	Stephen Hemminger <stephen@...workplumber.org>
Subject: Re: [PATCH 1/8] idr: fix overflow bug for the max-high layer

On Sat, Apr 19, 2014 at 01:08:46AM +0800, Lai Jiangshan wrote:
> On Sat, Apr 19, 2014 at 12:29 AM, Tejun Heo <tj@...nel.org> wrote:
> > Hello,
> 
> Hi,
> 
> Should I resend the patch with your updated changelog?
> Or something else I need to do?

Yeah, please resend with the description updated.

> >> static void test5(void)
> >> {
> >>       int id;
> >>       DEFINE_IDR(test_idr);
> >> #define TEST5_START ((1<<27)+42) /* use the highest layer */
> >>
> >>       printk(KERN_INFO "Start test5\n");
> >>       id = idr_alloc(&test_idr, (void *)1, TEST5_START, 0, GFP_KERNEL);
> >>       BUG_ON(id != TEST5_START);
> >>       TEST_BUG_ON(idr_replace(&test_idr, (void *)2, TEST5_START) != (void *)1);
> >>       idr_destroy(&test_idr);
> >>       printk(KERN_INFO "End of test5\n");
> >> }
> 
> Does the above testing code need to be kept in the changelog.

Yeah, why not?  It makes what's failing very clear.

Thanks.

-- 
tejun
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