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9b9bf8786f
Currently lvm2 is not wiping signatures when creating 'metadata' volumes and raid _rmeta was the only exception - so make the behavior consistent with other metadata devices and drop wiping ATM. Drop also some extra debug since they are now more explanatory in wipe_lv() function. Also note - although lvm2 now does not wipe signatures - the error from such wipping used to be actually 'ignored' before wipe_lv() started to return error (with recent commit) and raid creation continued with 'unzeroed' metadata device. TODO: Several issues to resolve: 1. We may want to flip to wipping with all LVs (in that case we need to support passing --yet & --force). 2. Also we may want to clear whole metadata device - however current function is also used for wipping i.e. snapshot COW device which is likely not a good candidate for full device zeroing. We may also need to think about better logic when extent size is enforcing very large LVs, when only a small portion of LV is ever being used. 3. Using TRIM instead of zeroing metadata device might be worth to implement. mm