From: Alasdair G Kergon <agk@redhat.com>
To: Jonathan Brassow <jbrassow@redhat.com>
Cc: linux-raid@vger.kernel.org, neilb@suse.de, 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 [thread overview]
Message-ID: <20121211214943.GC12788@agk.fab.redhat.com> (raw)
In-Reply-To: <1355261825.26828.6.camel@f16>
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
next prev parent reply other threads:[~2012-12-11 21:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-11 21:37 [PATCH] DM RAID: Ensure the bitmap region_size is a power of 2 Jonathan Brassow
2012-12-11 21:49 ` Alasdair G Kergon [this message]
2012-12-12 14:53 ` Jonathan Brassow
2012-12-12 16:10 ` Alasdair G Kergon
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