From 2649b27d13d364c6533d514b0d0df53fd6519551 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Mon, 7 Aug 2017 16:54:11 -0400
Subject: [PATCH] crush/CrushWrapper: remove unused 'unused' arg for
 trim_roots_with_classes

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/crush/CrushWrapper.cc      | 13 +++++--------
 src/crush/CrushWrapper.h       |  5 ++---
 src/test/crush/CrushWrapper.cc | 12 ++++--------
 3 files changed, 11 insertions(+), 19 deletions(-)

diff --git a/src/crush/CrushWrapper.cc b/src/crush/CrushWrapper.cc
index eb35ff7326ff5..06dfceb4ae248 100644
--- a/src/crush/CrushWrapper.cc
+++ b/src/crush/CrushWrapper.cc
@@ -364,11 +364,8 @@ bool CrushWrapper::_maybe_remove_last_instance(CephContext *cct, int item, bool
   return true;
 }
 
-int CrushWrapper::remove_root(int item, bool unused)
+int CrushWrapper::remove_root(int item)
 {
-  if (unused && _bucket_is_in_use(item))
-    return 0;
-
   crush_bucket *b = get_bucket(item);
   if (IS_ERR(b)) {
     // should be idempotent
@@ -383,7 +380,7 @@ int CrushWrapper::remove_root(int item, bool unused)
   for (unsigned n = 0; n < b->size; n++) {
     if (b->items[n] >= 0)
       continue;
-    int r = remove_root(b->items[n], unused);
+    int r = remove_root(b->items[n]);
     if (r < 0)
       return r;
   }
@@ -1426,14 +1423,14 @@ int CrushWrapper::populate_classes(
   return 0;
 }
 
-int CrushWrapper::trim_roots_with_class(bool unused)
+int CrushWrapper::trim_roots_with_class()
 {
   set<int> roots;
   find_shadow_roots(roots);
   for (auto &r : roots) {
     if (r >= 0)
       continue;
-    int res = remove_root(r, unused);
+    int res = remove_root(r);
     if (res)
       return res;
   }
@@ -1972,7 +1969,7 @@ int CrushWrapper::rebuild_roots_with_classes()
 {
   std::map<int32_t, map<int32_t, int32_t> > old_class_bucket = class_bucket;
   cleanup_dead_classes();
-  int r = trim_roots_with_class(false);
+  int r = trim_roots_with_class();
   if (r < 0)
     return r;
   class_bucket.clear();
diff --git a/src/crush/CrushWrapper.h b/src/crush/CrushWrapper.h
index 3808db08062ca..a75495bcc283d 100644
--- a/src/crush/CrushWrapper.h
+++ b/src/crush/CrushWrapper.h
@@ -834,10 +834,9 @@ public:
    * when a bucket is in use.
    *
    * @param item id to remove
-   * @param unused true if only unused items should be removed
    * @return 0 on success, negative on error
    */
-  int remove_root(int item, bool unused);
+  int remove_root(int item);
 
   /**
    * remove all instances of an item nested beneath a certain point from the map
@@ -1221,7 +1220,7 @@ public:
   void cleanup_dead_classes();
   int rebuild_roots_with_classes();
   /* remove unused roots generated for class devices */
-  int trim_roots_with_class(bool unused);
+  int trim_roots_with_class();
 
   void start_choose_profile() {
     free(crush->choose_tries);
diff --git a/src/test/crush/CrushWrapper.cc b/src/test/crush/CrushWrapper.cc
index 4502d0d0e69b3..cf651eb2a9636 100644
--- a/src/test/crush/CrushWrapper.cc
+++ b/src/test/crush/CrushWrapper.cc
@@ -1061,7 +1061,7 @@ TEST(CrushWrapper, choose_args_compat) {
   }
 }
 
-TEST(CrushWrapper, remove_unused_root) {
+TEST(CrushWrapper, remove_root) {
   CrushWrapper c;
   c.create();
   c.set_type_name(1, "host");
@@ -1087,9 +1087,9 @@ TEST(CrushWrapper, remove_unused_root) {
   ASSERT_TRUE(c.name_exists("default"));
   ASSERT_TRUE(c.name_exists("r11"));
   ASSERT_TRUE(c.name_exists("r12"));
-  ASSERT_EQ(c.remove_root(c.get_item_id("default"), true), 0);
+  ASSERT_EQ(c.remove_root(c.get_item_id("default")), 0);
   ASSERT_FALSE(c.name_exists("default"));
-  ASSERT_TRUE(c.name_exists("r11"));
+  ASSERT_FALSE(c.name_exists("r11"));
   ASSERT_FALSE(c.name_exists("r12"));
 }
 
@@ -1118,11 +1118,7 @@ TEST(CrushWrapper, trim_roots_with_class) {
 
   ASSERT_TRUE(c.name_exists("default"));
   ASSERT_TRUE(c.name_exists("default~ssd"));
-  c.trim_roots_with_class(true); // do nothing because still in use
-  ASSERT_TRUE(c.name_exists("default"));
-  ASSERT_TRUE(c.name_exists("default~ssd"));
-  c.class_bucket.clear();
-  c.trim_roots_with_class(true); // do nothing because still in use
+  c.trim_roots_with_class();
   ASSERT_TRUE(c.name_exists("default"));
   ASSERT_FALSE(c.name_exists("default~ssd"));
 }
-- 
2.39.5