From 3440668d0503d7474bfb2b1e6a73c3e943055436 Mon Sep 17 00:00:00 2001 From: Joe Thornber Date: Wed, 11 Jul 2012 15:48:52 +0100 Subject: [PATCH 25/41] dm thin metadata: zero the uuid The uuid is an unused field in the superblock. Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer --- 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 c3f6ba3..365b982 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; -- 1.7.1