os/bluestore/BlueFS: interface to get bluefs space usage

Returns total bytes consumed by BlueFS across devs

Signed-off-by: Varada Kari <varada.kari@sandisk.com>

diff --git a/src/os/bluestore/BlueFS.cc b/src/os/bluestore/BlueFS.cc
index 919e07e5fc583e96fde96b3d6714199a92adeb67..189b9cd1af9805f4f13dd99cd55584d5ac35271a 100644 (file)
--- a/src/os/bluestore/BlueFS.cc
+++ b/src/os/bluestore/BlueFS.cc
@@ -186,6 +186,15 @@ int BlueFS::reclaim_blocks(unsigned id, uint64_t want,
   return 0;
 }
 
+uint64_t BlueFS::get_fs_usage()
+{
+  uint64_t total_bytes = 0;
+  for (auto& p : file_map) {
+    total_bytes += p.second->fnode.get_allocated();
+  }
+  return total_bytes;
+}
+
 uint64_t BlueFS::get_total(unsigned id)
 {
   std::lock_guard<std::mutex> l(lock);

diff --git a/src/os/bluestore/BlueFS.h b/src/os/bluestore/BlueFS.h
index f3bf5700ac84d2270fe2a266244d3a83d5a5092a..a71a11b5c91d9896dbed2b4309ad66bcf5f07b7f 100644 (file)
--- a/src/os/bluestore/BlueFS.h
+++ b/src/os/bluestore/BlueFS.h
@@ -296,6 +296,7 @@ public:
 
   int fsck();
 
+  uint64_t get_fs_usage();
   uint64_t get_total(unsigned id);
   uint64_t get_free(unsigned id);
   void get_usage(vector<pair<uint64_t,uint64_t>> *usage); // [<free,total> ...]