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| author | Sage Weil <sage@inktank.com> | 2013-01-16 06:49:09 +0400 |
|---|---|---|
| committer | Alex Elder <elder@inktank.com> | 2013-01-17 22:42:39 +0400 |
| commit | 7d7c1f6136bac00174842f845babe7fb3483724e (patch) | |
| tree | e4334780995901e60cfacbfc53b5026993fcb02e | |
| parent | 1604f488ac2dcce33c8218e75a000e8c5fb57e61 (diff) | |
| download | linux-7d7c1f6136bac00174842f845babe7fb3483724e.tar.xz | |
crush: avoid recursion if we have already collided
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>
| -rw-r--r-- | net/ceph/crush/mapper.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c index 96c8a58937db..cbd06a91941c 100644 --- a/net/ceph/crush/mapper.c +++ b/net/ceph/crush/mapper.c @@ -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], |