dm integrity: don't re-write metadata if discarding same blocks
If we discard already discarded blocks we do not need to write discard pattern to the metadata, because it is already there. Signed-off-by:Mikulas Patocka <mpatocka@redhat.com> Signed-off-by:
Mike Snitzer <snitzer@redhat.com>
parent
f99a8e43
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