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dm: zero silently drop discards
[pandora-kernel.git]
/
drivers
/
md
/
dm-zero.c
diff --git
a/drivers/md/dm-zero.c
b/drivers/md/dm-zero.c
index
bbc9703
..
cc2b3cb
100644
(file)
--- a/
drivers/md/dm-zero.c
+++ b/
drivers/md/dm-zero.c
@@
-22,6
+22,11
@@
static int zero_ctr(struct dm_target *ti, unsigned int argc, char **argv)
return -EINVAL;
}
+ /*
+ * Silently drop discards, avoiding -EOPNOTSUPP.
+ */
+ ti->num_discard_requests = 1;
+
return 0;
}