From: Bob Peterson <rpeterso@redhat.com>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] [PATCH 3/4] mkfs.gfs2: Create new resource groups on-demand
Date: Thu, 6 Jun 2013 09:07:38 -0400 (EDT) [thread overview]
Message-ID: <1672593147.48067930.1370524058619.JavaMail.root@redhat.com> (raw)
In-Reply-To: <1370520213-29676-3-git-send-email-anprice@redhat.com>
Hi,
| +static unsigned rgsize_for_data(uint64_t blksreq, unsigned bsize)
| +{
| + const uint32_t blks_rgrp = GFS2_NBBY * (bsize - sizeof(struct
| gfs2_rgrp));
| + const uint32_t blks_meta = GFS2_NBBY * (bsize - sizeof(struct
| gfs2_meta_header));
| + unsigned bitblocks = 1;
| + if (blksreq > blks_rgrp)
| + bitblocks += ((blksreq - blks_rgrp) + blks_meta) / blks_meta;
It looks like this may be rounding up to blks_meta, so shouldn't this be:
+ bitblocks += ((blksreq - blks_rgrp) + blks_meta - 1) / blks_meta;
Regards,
Bob Peterson
Red Hat File Systems
next prev parent reply other threads:[~2013-06-06 13:07 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-06 12:03 [Cluster-devel] [PATCH 1/4] mkfs.gfs2: Set sunit and swidth from probed io limits Andrew Price
2013-06-06 12:03 ` [Cluster-devel] [PATCH 2/4] mkfs.gfs2: Align resource groups to RAID stripes Andrew Price
2013-06-06 12:06 ` Steven Whitehouse
2013-06-06 12:19 ` Andrew Price
2013-06-06 12:57 ` Bob Peterson
2013-06-06 13:04 ` Andrew Price
2013-06-06 13:17 ` Bob Peterson
2013-06-06 13:11 ` Steven Whitehouse
2013-06-06 13:30 ` Bob Peterson
2013-06-06 15:17 ` Andrew Price
2013-06-06 12:03 ` [Cluster-devel] [PATCH 3/4] mkfs.gfs2: Create new resource groups on-demand Andrew Price
2013-06-06 13:07 ` Bob Peterson [this message]
2013-06-06 13:50 ` Andrew Price
2013-06-06 12:03 ` [Cluster-devel] [PATCH 4/4] mkfs.gfs2: Add align option and update docs Andrew Price
2013-06-06 12:15 ` Steven Whitehouse
2013-06-06 12:45 ` Andrew Price
2013-06-06 12:53 ` Steven Whitehouse
2013-06-06 13:13 ` Bob Peterson
2013-06-06 13:53 ` Andrew Price
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