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crush: fix force for non-root TAKE

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Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2011-12-12 09:35:22 -08:00
parent 3d8eb7a94e
commit e11b05d31f
1 changed files with 8 additions and 3 deletions
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11
net/ceph/crush/mapper.c
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@ -510,10 +510,15 @@ int crush_do_rule(struct crush_map *map,
switch (rule->steps[step].op) { switch (rule->steps[step].op) {
case CRUSH_RULE_TAKE: case CRUSH_RULE_TAKE:
w[0] = rule->steps[step].arg1; 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--; force_pos--;
} /* and move past it */
if (force_pos >= 0)
force_pos--;
wsize = 1; wsize = 1;
break; break;