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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
include/linux/device-mapper.h
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@ -84,7 +84,7 @@ typedef int (*dm_merge_fn) (struct dm_target *ti, struct bvec_merge_data *bvm,
typedef int (*iterate_devices_callout_fn) (struct dm_target *ti,
struct dm_dev *dev,
sector_t physical_start,
sector_t start, sector_t len,
void *data);
typedef int (*dm_iterate_devices_fn) (struct dm_target *ti,
@ -104,7 +104,7 @@ void dm_error(const char *message);
* Combine device limits.
*/
int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev,
sector_t start, void *data);
sector_t start, sector_t len, void *data);
struct dm_dev {
struct block_device *bdev;