From: Sage Weil <sage@redhat.com>
Date: Thu, 27 Jul 2017 14:07:31 +0000 (-0400)
Subject: crush/CrushWrapper: rule_has_take
X-Git-Tag: v12.2.2~61^2~99
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=073f23734c8058e3efcb440df89adab818510695;p=ceph.git

crush/CrushWrapper: rule_has_take

Signed-off-by: Sage Weil <sage@redhat.com>
(cherry picked from commit ef140de639078b40c05971fb219f7b8c12d83228)
---

diff --git a/src/crush/CrushWrapper.h b/src/crush/CrushWrapper.h
index 007737794715..607b7c61e7a4 100644
--- a/src/crush/CrushWrapper.h
+++ b/src/crush/CrushWrapper.h
@@ -984,6 +984,17 @@ public:
       return true;
     return false;
   }
+  bool rule_has_take(unsigned ruleno, int take) const {
+    if (!crush) return false;
+    crush_rule *rule = get_rule(ruleno);
+    for (unsigned i = 0; i < rule->len; ++i) {
+      if (rule->steps[i].op == CRUSH_RULE_TAKE &&
+	  rule->steps[i].arg1 == take) {
+	return true;
+      }
+    }
+    return false;
+  }
   int get_rule_len(unsigned ruleno) const {
     crush_rule *r = get_rule(ruleno);
     if (IS_ERR(r)) return PTR_ERR(r);