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.

diff --git a/lib/metadata/lv_manip.c b/lib/metadata/lv_manip.c
index d96137afffcf73650bf1bba9042577b1c48e76cc..5956d032c106673182a9384f5c32863a9b7ce686 100644 (file)
--- 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;