Gitweb: https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=fe78cd4082cb9af1058018... Commit: fe78cd4082cb9af10580180d61898fcef93dc624 Parent: 40266faaab07f5578d137f9e400fbc9190edabcd Author: Zdenek Kabelac zkabelac@redhat.com AuthorDate: Wed Jul 8 10:38:36 2020 +0200 Committer: Zdenek Kabelac zkabelac@redhat.com CommitterDate: Wed Jul 8 11:12:54 2020 +0200
wipe_lv: always zero at least 4K
When zero_sectors passed value like 1 - we could zero only 1 sector. Reinstantiate we always zero at least 4K block. --- lib/metadata/lv_manip.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/lib/metadata/lv_manip.c b/lib/metadata/lv_manip.c index d96137aff..5956d032c 100644 --- a/lib/metadata/lv_manip.c +++ b/lib/metadata/lv_manip.c @@ -7642,7 +7642,9 @@ int wipe_lv(struct logical_volume *lv, struct wipe_params wp) if (wp.is_metadata) /* Verbosely notify metadata will not be fully zeroed */ log_verbose("Metadata logical volume %s not fully zeroed and may contain stale data.", display_lvname(lv)); - zero_sectors = wp.zero_sectors ? : UINT64_C(4096) >> SECTOR_SHIFT; + zero_sectors = UINT64_C(4096) >> SECTOR_SHIFT; + if (wp.zero_sectors > zero_sectors) + zero_sectors = wp.zero_sectors;
if (zero_sectors > lv->size) zero_sectors = lv->size;
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