diff options
| author | Joe Thornber <ejt@redhat.com> | 2012-07-27 15:08:11 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2012-07-27 15:08:11 +0100 |
| commit | 583ceee2ed1d171718aee348163f2ed25d461772 (patch) | |
| tree | 997074e27de9a2f8204ad89751613eb46dea1d61 | |
| parent | 270938bac53b03b83b4b0b65b760f32975df72b1 (diff) | |
| download | linux-583ceee2ed1d171718aee348163f2ed25d461772.tar.gz linux-583ceee2ed1d171718aee348163f2ed25d461772.tar.bz2 linux-583ceee2ed1d171718aee348163f2ed25d461772.zip | |
dm thin metadata: zero unused superblock uuid
Zero the unused uuid when initialising the metadata superblock.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
| -rw-r--r-- | drivers/md/dm-thin-metadata.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 934b3fc7bfc9..9f7c1e01dda2 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -455,6 +455,7 @@ static int __write_initial_superblock(struct dm_pool_metadata *pmd) disk_super = dm_block_data(sblock); disk_super->flags = 0; + memset(disk_super->uuid, 0, sizeof(disk_super->uuid)); disk_super->magic = cpu_to_le64(THIN_SUPERBLOCK_MAGIC); disk_super->version = cpu_to_le32(THIN_VERSION); disk_super->time = 0; |