From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alasdair G Kergon <agk@redhat.com>
Subject: Re: [PATCH]  DM RAID:  Ensure the bitmap region_size is a power of 2
Date: Tue, 11 Dec 2012 21:49:43 +0000
Message-ID: <20121211214943.GC12788@agk.fab.redhat.com>
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To: Jonathan Brassow <jbrassow@redhat.com>
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On Tue, Dec 11, 2012 at 03:37:05PM -0600, Jon Brassow wrote:
>  		if (min_region_size > (1 << 13)) {
> +			/* region_size must be a power of 2 */
> +			for (i = 13; min_region_size > (1 << i); i++);
> +
> +			region_size = (1 << i);

Can the loop be replaced with a direct bit calculation, perhaps?

Alasdair