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crush: avoid recursion if we have already collided

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This saves us some cycles, but does not affect the placement result at
all.

This corresponds to ceph.git commit 4abb53d4f.

Signed-off-by: Sage Weil <sage@inktank.com>
This commit is contained in:
Sage Weil 2013-01-15 18:49:09 -08:00 committed by Alex Elder
parent 1604f488ac
commit 7d7c1f6136
1 changed files with 1 additions and 1 deletions
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2
net/ceph/crush/mapper.c
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@ -392,7 +392,7 @@ static int crush_choose(const struct crush_map *map,
}
reject = 0;
if (recurse_to_leaf) {
if (!collide && recurse_to_leaf) {
if (item < 0) {
if (crush_choose(map,
map->buckets[-1-item],