From e914da51a10ac4263a186980fb38da35a3916ef0 Mon Sep 17 00:00:00 2001
From: Matan Breizman <mbreizma@redhat.com>
Date: Tue, 7 Feb 2023 19:47:55 +0000
Subject: [PATCH] common/instrusive_lru: Implement for_each

Signed-off-by: Matan Breizman <mbreizma@redhat.com>
(cherry picked from commit 9f8e2329882a2d5101489b7c2445285a43d4ed13)
---
 src/common/intrusive_lru.h       | 8 ++++++++
 src/crimson/osd/object_context.h | 5 +++++
 2 files changed, 13 insertions(+)

diff --git a/src/common/intrusive_lru.h b/src/common/intrusive_lru.h
index d780b22119244..e8c3cda3e64e7 100644
--- a/src/common/intrusive_lru.h
+++ b/src/common/intrusive_lru.h
@@ -167,6 +167,14 @@ public:
       }
   }
 
+  template <class F>
+  void for_each(F&& f) {
+    for (auto& v : lru_set) {
+      access(v);
+      f(TRef{static_cast<T*>(&v)});
+    }
+  }
+
   /**
    * Returns the TRef corresponding to k if it exists or
    * nullptr otherwise.
diff --git a/src/crimson/osd/object_context.h b/src/crimson/osd/object_context.h
index a4ecc6ec329e6..48b28ae665f3f 100644
--- a/src/crimson/osd/object_context.h
+++ b/src/crimson/osd/object_context.h
@@ -268,6 +268,11 @@ public:
     obc_lru.clear_range(from, to);
   }
 
+  template <class F>
+  void for_each(F&& f) {
+    obc_lru.for_each(std::forward<F>(f));
+  }
+
   const char** get_tracked_conf_keys() const final;
   void handle_conf_change(const crimson::common::ConfigProxy& conf,
                           const std::set <std::string> &changed) final;
-- 
2.39.5