From: Samuel Just <sam.just@inktank.com>
Date: Wed, 29 May 2013 22:05:51 +0000 (-0700)
Subject: WBThrottle: add some comments and some asserts
X-Git-Tag: v0.65~194^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=a55e03cdfe45754b2aff8110aa1a0518404f1218;p=ceph.git

WBThrottle: add some comments and some asserts

Signed-off-by: Samuel Just <sam.just@inktank.com>
---

diff --git a/src/os/WBThrottle.cc b/src/os/WBThrottle.cc
index 23e24765cc24..4673488f8334 100644
--- a/src/os/WBThrottle.cc
+++ b/src/os/WBThrottle.cc
@@ -206,6 +206,8 @@ void WBThrottle::clear()
   lru.clear();
   rev_lru.clear();
   cond.Signal();
+  assert(cur_ios == 0);
+  assert(cur_size == 0);
 }
 
 void WBThrottle::clear_object(const hobject_t &hoid)
diff --git a/src/os/WBThrottle.h b/src/os/WBThrottle.h
index 797a6e78246b..070de08e1230 100644
--- a/src/os/WBThrottle.h
+++ b/src/os/WBThrottle.h
@@ -46,6 +46,10 @@ enum {
 class WBThrottle : Thread, public md_config_obs_t {
   hobject_t clearing;
 
+  /* *_limits.first is the start_flusher limit and
+   * *_limits.second is the hard limit
+   */
+
   /// Limits on unflushed bytes
   pair<uint64_t, uint64_t> size_limits;