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md: Make mddev->chunk_size sector-based.

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This patch renames the chunk_size field to chunk_sectors with the
implied change of semantics.  Since

	is_power_of_2(chunk_size) = is_power_of_2(chunk_sectors << 9)
				  = is_power_of_2(chunk_sectors)

these bits don't need an adjustment for the shift.

Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Andre Noll
2009-06-18 08:45:01 +10:00
committed by NeilBrown
parent fbb704efb7
commit 9d8f036362
7 changed files with 74 additions and 68 deletions
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4
drivers/md/raid1.c
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@@ -2161,10 +2161,10 @@ static int raid1_reshape(mddev_t *mddev)
int d, d2, err;
/* Cannot change chunk_size, layout, or level */
if (mddev->chunk_size != mddev->new_chunk ||
if (mddev->chunk_sectors << 9 != mddev->new_chunk ||
mddev->layout != mddev->new_layout ||
mddev->level != mddev->new_level) {
mddev->new_chunk = mddev->chunk_size;
mddev->new_chunk = mddev->chunk_sectors << 9;
mddev->new_layout = mddev->layout;
mddev->new_level = mddev->level;
return -EINVAL;