From c6e086e0c9b2133f38563707c96b22fd0906f570 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Fri, 22 Mar 2019 16:12:22 -0400 Subject: dm space map common: zero entire ll_disk Otherwise, memory that is allocated (and potentially not previously zeroed) will get written to disk as part of the space maps. Signed-off-by: Mike Snitzer --- drivers/md/persistent-data/dm-space-map-common.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/md') diff --git a/drivers/md/persistent-data/dm-space-map-common.c b/drivers/md/persistent-data/dm-space-map-common.c index 0a3b8ae4a29c..b8a62188f6be 100644 --- a/drivers/md/persistent-data/dm-space-map-common.c +++ b/drivers/md/persistent-data/dm-space-map-common.c @@ -190,6 +190,8 @@ static int sm_find_free(void *addr, unsigned begin, unsigned end, static int sm_ll_init(struct ll_disk *ll, struct dm_transaction_manager *tm) { + memset(ll, 0, sizeof(struct ll_disk)); + ll->tm = tm; ll->bitmap_info.tm = tm; -- cgit v1.2.3