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authorJoe Thornber <ejt@redhat.com>2013-05-10 14:37:18 +0100
committerAlasdair G Kergon <agk@redhat.com>2013-05-10 14:37:18 +0100
commitb17446df2ebcaf32889376d90f4b9b2baebb2db6 (patch)
tree53d98c3dcb15542d90a6e39c5373a5ab41d47c02 /drivers/md/dm-thin-metadata.c
parent8c5008fac4af85c7a597c4e7f2c328ac90652bc2 (diff)
downloadlinaro-lsk-b17446df2ebcaf32889376d90f4b9b2baebb2db6.tar.gz
dm thin: refactor data dev resize
Refactor device size functions in preparation for similar metadata device resizing functions. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-thin-metadata.c')
-rw-r--r--drivers/md/dm-thin-metadata.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 00cee02f8fc..9452a489ed9 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -1645,12 +1645,12 @@ int dm_thin_get_highest_mapped_block(struct dm_thin_device *td,
return r;
}
-static int __resize_data_dev(struct dm_pool_metadata *pmd, dm_block_t new_count)
+static int __resize_space_map(struct dm_space_map *sm, dm_block_t new_count)
{
int r;
dm_block_t old_count;
- r = dm_sm_get_nr_blocks(pmd->data_sm, &old_count);
+ r = dm_sm_get_nr_blocks(sm, &old_count);
if (r)
return r;
@@ -1658,11 +1658,11 @@ static int __resize_data_dev(struct dm_pool_metadata *pmd, dm_block_t new_count)
return 0;
if (new_count < old_count) {
- DMERR("cannot reduce size of data device");
+ DMERR("cannot reduce size of space map");
return -EINVAL;
}
- return dm_sm_extend(pmd->data_sm, new_count - old_count);
+ return dm_sm_extend(sm, new_count - old_count);
}
int dm_pool_resize_data_dev(struct dm_pool_metadata *pmd, dm_block_t new_count)
@@ -1671,7 +1671,7 @@ int dm_pool_resize_data_dev(struct dm_pool_metadata *pmd, dm_block_t new_count)
down_write(&pmd->root_lock);
if (!pmd->fail_io)
- r = __resize_data_dev(pmd, new_count);
+ r = __resize_space_map(pmd->data_sm, new_count);
up_write(&pmd->root_lock);
return r;