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author | Sage Weil <sage@newdream.net> | 2011-12-07 21:10:26 +0400 |
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committer | Sage Weil <sage@newdream.net> | 2011-12-12 21:09:45 +0400 |
commit | f1932fc1a6d899c754676b1dd8b17de93b052d43 (patch) | |
tree | 97c26910626172e22b8495024f9e0025ba9f2343 | |
parent | be655596b3de5873f994ddbe205751a5ffb4de39 (diff) | |
download | linux-f1932fc1a6d899c754676b1dd8b17de93b052d43.tar.xz |
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: Sage Weil <sage@newdream.net>
-rw-r--r-- | net/ceph/crush/mapper.c | 35 |
1 files changed, 13 insertions, 22 deletions
diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c index 42599e31dcad..3a94eae7abe9 100644 --- a/net/ceph/crush/mapper.c +++ b/net/ceph/crush/mapper.c @@ -477,7 +477,6 @@ int crush_do_rule(struct crush_map *map, int i, j; int numrep; int firstn; - int rc = -1; BUG_ON(ruleno >= map->max_rules); @@ -491,23 +490,18 @@ int crush_do_rule(struct crush_map *map, * that this may or may not correspond to the specific types * referenced by the crush rule. */ - if (force >= 0) { - if (force >= map->max_devices || - map->device_parents[force] == 0) { - /*dprintk("CRUSH: forcefed device dne\n");*/ - rc = -1; /* force fed device dne */ - goto out; - } - if (!is_out(map, weight, force, x)) { - while (1) { - force_context[++force_pos] = force; - if (force >= 0) - force = map->device_parents[force]; - else - force = map->bucket_parents[-1-force]; - if (force == 0) - break; - } + if (force >= 0 && + force < map->max_devices && + map->device_parents[force] != 0 && + !is_out(map, weight, force, x)) { + while (1) { + force_context[++force_pos] = force; + if (force >= 0) + force = map->device_parents[force]; + else + force = map->bucket_parents[-1-force]; + if (force == 0) + break; } } @@ -600,10 +594,7 @@ int crush_do_rule(struct crush_map *map, BUG_ON(1); } } - rc = result_len; - -out: - return rc; + return result_len; } |