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dm space map common: zero entire ll_disk

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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 <snitzer@redhat.com>
This commit is contained in:
Mike Snitzer 2019-03-22 16:12:22 -04:00
parent 84420b1e5d
commit c6e086e0c9
1 changed files with 2 additions and 0 deletions
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2
drivers/md/persistent-data/dm-space-map-common.c
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@ -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;