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dm thin: fix metadata dev resize detection 

Fix detection of the need to resize the dm thin metadata device.

The code incorrectly tried to extend the metadata device when it
didn't need to due to a merging error with patch 24347e9 ("dm thin:
detect metadata device resizing").

  device-mapper: transaction manager: couldn't open metadata space map
  device-mapper: thin metadata: tm_open_with_sm failed
  device-mapper: thin: aborting transaction failed
  device-mapper: thin: switching pool to failure mode

Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Alasdair G Kergon 2013-05-19 18:57:50 +01:00
parent f722406faa
commit 610bba8b93
1 changed files with 2 additions and 2 deletions
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4
drivers/md/dm-thin.c
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@ -2188,7 +2188,7 @@ static int maybe_resize_metadata_dev(struct dm_target *ti, bool *need_commit)
*need_commit = false;
metadata_dev_size = get_metadata_dev_size(pool->md_dev);
metadata_dev_size = get_metadata_dev_size_in_blocks(pool->md_dev);
r = dm_pool_get_metadata_dev_size(pool->pmd, &sb_metadata_dev_size);
if (r) {
@ -2197,7 +2197,7 @@ static int maybe_resize_metadata_dev(struct dm_target *ti, bool *need_commit)
}
if (metadata_dev_size < sb_metadata_dev_size) {
DMERR("metadata device (%llu sectors) too small: expected %llu",
DMERR("metadata device (%llu blocks) too small: expected %llu",
metadata_dev_size, sb_metadata_dev_size);
return -EINVAL;