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authorJoe Thornber <ejt@redhat.com>2013-05-10 14:37:19 +0100
committerAlasdair G Kergon <agk@redhat.com>2013-05-10 14:37:19 +0100
commit24347e9595704464f62a4ed8f46abf62b4c79cdd (patch)
treed522f4239193edda8bb204d2c0b4251f2e982bbb /drivers/md/dm-thin-metadata.h
parent1921c56d95c4ac92b359ad44ffbc1e9a36060b29 (diff)
downloadlwn-24347e9595704464f62a4ed8f46abf62b4c79cdd.tar.gz
lwn-24347e9595704464f62a4ed8f46abf62b4c79cdd.zip
dm thin: detect metadata device resizing
Allow the dm thin pool metadata device to be extended. Whenever a pool is resumed, detect whether the size of the metadata device has increased, and if so, extend the metadata to use the new space. 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.h')
-rw-r--r--drivers/md/dm-thin-metadata.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm-thin-metadata.h b/drivers/md/dm-thin-metadata.h
index 0cecc3702885..ef8dd709e34e 100644
--- a/drivers/md/dm-thin-metadata.h
+++ b/drivers/md/dm-thin-metadata.h
@@ -185,6 +185,7 @@ int dm_pool_get_data_dev_size(struct dm_pool_metadata *pmd, dm_block_t *result);
* blocks would be lost.
*/
int dm_pool_resize_data_dev(struct dm_pool_metadata *pmd, dm_block_t new_size);
+int dm_pool_resize_metadata_dev(struct dm_pool_metadata *pmd, dm_block_t new_size);
/*
* Flicks the underlying block manager into read only mode, so you know