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Commit f1932fc1 authored by Sage Weil's avatar Sage Weil
Browse files

crush: fix mapping calculation when force argument doesn't exist 



If the force argument isn't valid, we should continue calculating a
mapping as if it weren't specified.

Signed-off-by: default avatarSage Weil <sage@newdream.net>
parent be655596

net/ceph/crush/mapper.c

+13 −22
Original line number Original line Diff line number Diff line
@@ -477,7 +477,6 @@ int crush_do_rule(struct crush_map *map, 
	int i, j;

	int i, j;

	int numrep;

	int numrep;

	int firstn;

	int firstn;

	int rc = -1;





	BUG_ON(ruleno >= map->max_rules);

	BUG_ON(ruleno >= map->max_rules);
@@ -491,14 +490,10 @@ int crush_do_rule(struct crush_map *map, 
	 * that this may or may not correspond to the specific types

	 * that this may or may not correspond to the specific types

	 * referenced by the crush rule.

	 * referenced by the crush rule.

	 */

	 */

	if (force >= 0) {

	if (force >= 0 &&

		if (force >= map->max_devices ||

	    force < map->max_devices &&

		    map->device_parents[force] == 0) {

	    map->device_parents[force] != 0 &&

			/*dprintk("CRUSH: forcefed device dne\n");*/

	    !is_out(map, weight, force, x)) {

			rc = -1;  /* force fed device dne */

			goto out;

		}

		if (!is_out(map, weight, force, x)) {

		while (1) {

		while (1) {

			force_context[++force_pos] = force;

			force_context[++force_pos] = force;

			if (force >= 0)

			if (force >= 0)
@@ -509,7 +504,6 @@ int crush_do_rule(struct crush_map *map, 
				break;

				break;

		}

		}

	}

	}

	}





	for (step = 0; step < rule->len; step++) {

	for (step = 0; step < rule->len; step++) {

		firstn = 0;

		firstn = 0;
@@ -600,10 +594,7 @@ int crush_do_rule(struct crush_map *map, 
			BUG_ON(1);

			BUG_ON(1);

		}

		}

	}

	}

	rc = result_len;

	return result_len;



out:

	return rc;

}

}