os/bluestore: Add operator<< for BufferSpace

Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index 0ab8a77c1ed0067d22a98dd694cc604e7eda423e..c7cfbf9029c0ff61efb0b2ae496c7eb12a07bc60 100644 (file)
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -1943,6 +1943,23 @@ void BlueStore::BufferSpace::split(BufferCacheShard* cache, size_t pos, BlueStor
   cache->_trim();
 }
 
+// lists content of BufferSpace
+// BufferSpace must be under exclusive access
+std::ostream& operator<<(std::ostream& out, const BlueStore::BufferSpace& bc)
+{
+  for (auto& [i, j] : bc.buffer_map) {
+    out << " [0x" << std::hex << i << "]=" << *j << std::dec;
+  }
+  if (!bc.writing.empty()) {
+    out << " writing:";
+    for (auto i = bc.writing.begin(); i != bc.writing.end(); ++i) {
+      out << " " << *i;
+    }
+  }
+  return out;
+}
+
+
 // OnodeSpace
 
 #undef dout_prefix

diff --git a/src/os/bluestore/BlueStore.h b/src/os/bluestore/BlueStore.h
index ef8e380dbb367ac94e6b42ffe6f0eb77c4b37439..e2ed810c0b3580af1eb4d91b40a96b8531d7f0ea 100644 (file)
--- a/src/os/bluestore/BlueStore.h
+++ b/src/os/bluestore/BlueStore.h
@@ -477,6 +477,7 @@ public:
       }
       f->close_section();
     }
+    friend std::ostream& operator<<(std::ostream& out, const BufferSpace& bc);
   };
 
   struct SharedBlobSet;