crush: add SET_CHOOSE_TRIES rule step
Since we can specify the recursive retries in a rule, we may as well also
specify the non-recursive tries too for completeness.
Reflects ceph.git commit d1b97462cffccc871914859eaee562f2786abfd1.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
diff --git a/include/linux/crush/crush.h b/include/linux/crush/crush.h
index 07b8fd4..5f95969 100644
--- a/include/linux/crush/crush.h
+++ b/include/linux/crush/crush.h
@@ -47,7 +47,8 @@
CRUSH_RULE_CHOOSE_LEAF_FIRSTN = 6,
CRUSH_RULE_CHOOSE_LEAF_INDEP = 7,
- CRUSH_RULE_SET_CHOOSE_LEAF_TRIES = 9,
+ CRUSH_RULE_SET_CHOOSE_TRIES = 8, /* override choose_total_tries */
+ CRUSH_RULE_SET_CHOOSE_LEAF_TRIES = 9, /* override chooseleaf_descend_once */
};
/*
diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c
index c343205..a1acdea 100644
--- a/net/ceph/crush/mapper.c
+++ b/net/ceph/crush/mapper.c
@@ -661,6 +661,11 @@
wsize = 1;
break;
+ case CRUSH_RULE_SET_CHOOSE_TRIES:
+ if (curstep->arg1 > 0)
+ choose_tries = curstep->arg1;
+ break;
+
case CRUSH_RULE_SET_CHOOSE_LEAF_TRIES:
if (curstep->arg1 > 0)
choose_leaf_tries = curstep->arg1;