linux-kernel - Re: [PATCH 1/5] mtd: fix bdev exclusive open bugs in block2mtd::add

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Message-ID: <4CDE6BB2.5070806@kernel.org>
Date:	Sat, 13 Nov 2010 11:42:58 +0100
From:	Tejun Heo <tj@...nel.org>
To:	dedekind1@...il.com
CC:	axboe@...nel.dk, hch@...radead.org, linux-kernel@...r.kernel.org,
	petero2@...ia.com, schwidefsky@...ibm.com,
	heiko.carstens@...ibm.com, jack@...e.cz, akpm@...ux-foundation.org,
	adilger.kernel@...ger.ca, tytso@....edu, mfasheh@...e.com,
	joel.becker@...cle.com, aelder@....com, dm-devel@...hat.com,
	drbd-dev@...ts.linbit.com, neilb@...e.de, leochen@...adcom.com,
	sbranden@...adcom.com, chris.mason@...cle.com, swhiteho@...hat.com,
	shaggy@...ux.vnet.ibm.com, joern@...fs.org,
	konishi.ryusuke@....ntt.co.jp, reiserfs-devel@...r.kernel.org,
	viro@...iv.linux.org.uk, linux-mtd@...ts.infradead.org
Subject: Re: [PATCH 1/5] mtd: fix bdev exclusive open bugs in block2mtd::add_device()

Hello,

On 11/13/2010 11:38 AM, Artem Bityutskiy wrote:
> On Mon, 2010-11-01 at 17:15 +0100, Tejun Heo wrote:
>> +			if (!IS_ERR(bdev)) {
>> +				int ret;
>> +				ret = bd_claim(bdev, dev);
>> +				if (ret) {
>> +					blkdev_put(bdev,
>> +						   FMODE_READ | FMODE_WRITE);
> 
> Would be a bit cleaner to define ea temporary variable:
> 
> fmode_t mode = FMODE_READ | FMODE_WRITE;
> 
> Would you to re-send with this little change please?

Yeap, sure.

> And ideally, 2 independent patches would be nicer because you fix 2
> independent issues.

Hmmm... not really.  The patch is small enough and splitting it won't
really buy as any better bisectability.  Splitting patches into
logical changes is a good thing but it's no religious dogma.  Let's
apply it to the point it actually helps.

Thank you.

-- 
tejun
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