Commit f8facb61 authored Aug 12, 2010 by Mike Snitzer Committed by Alasdair G Kergon Aug 12, 2010

dm: zero silently drop discards



Have the zero target silently drop a discard rather than fail the
request with -EOPNOTSUPP.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

parent b441a262

drivers/md/dm-zero.c

+5 −0

Original line number	Original line	Diff line number	Diff line
	@@ -22,6 +22,11 @@ static int zero_ctr(struct dm_target ti, unsigned int argc, char *argv)
	return -EINVAL;		return -EINVAL;
	}		}

			/*
			* Silently drop discards, avoiding -EOPNOTSUPP.
			*/
			ti->num_discard_requests = 1;

	return 0;		return 0;
	}		}