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dm table: pass correct dev area size to device_area_is_valid

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Incorrect device area lengths are being passed to device_area_is_valid().

The regression appeared in 2.6.31-rc1 through commit
754c5fc7eb.

With the dm-stripe target, the size of the target (ti->len) was used
instead of the stripe_width (ti->len/#stripes).  An example of a
consequent incorrect error message is:

  device-mapper: table: 254:0: sdb too small for target

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Mike Snitzer
2009-07-23 20:30:42 +01:00
committed by Alasdair G Kergon
parent a732c207d1
commit 5dea271b6d
8 changed files with 17 additions and 16 deletions
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4
drivers/md/dm-delay.c
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@@ -324,12 +324,12 @@ static int delay_iterate_devices(struct dm_target *ti,
struct delay_c *dc = ti->private;
int ret = 0;
ret = fn(ti, dc->dev_read, dc->start_read, data);
ret = fn(ti, dc->dev_read, dc->start_read, ti->len, data);
if (ret)
goto out;
if (dc->dev_write)
ret = fn(ti, dc->dev_write, dc->start_write, data);
ret = fn(ti, dc->dev_write, dc->start_write, ti->len, data);
out:
return ret;