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authorSage Weil <sage@newdream.net>2011-12-12 09:35:22 -0800
committerSage Weil <sage@newdream.net>2012-01-10 08:56:57 -0800
commite11b05d31f21f0ea39ea288af667887cd6c21c80 (patch)
tree59768fe6ec9ef15f5e01817d76257f7489df1d5e /net/ceph/crush
parent3d8eb7a94e8f25a33362f708974ac7daae9e84f8 (diff)
downloadlinux-e11b05d31f21f0ea39ea288af667887cd6c21c80.tar.gz
crush: fix force for non-root TAKE
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'net/ceph/crush')
-rw-r--r--net/ceph/crush/mapper.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c
index 3a94eae7abe..b79747c4b64 100644
--- a/net/ceph/crush/mapper.c
+++ b/net/ceph/crush/mapper.c
@@ -510,10 +510,15 @@ int crush_do_rule(struct crush_map *map,
switch (rule->steps[step].op) {
case CRUSH_RULE_TAKE:
w[0] = rule->steps[step].arg1;
- if (force_pos >= 0) {
- BUG_ON(force_context[force_pos] != w[0]);
+
+ /* find position in force_context/hierarchy */
+ while (force_pos >= 0 &&
+ force_context[force_pos] != w[0])
force_pos--;
- }
+ /* and move past it */
+ if (force_pos >= 0)
+ force_pos--;
+
wsize = 1;
break;