From ca63d166a3da24785e21ee0d227c42f9844d9f52 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Thu, 23 Mar 2017 19:41:53 -0500
Subject: [PATCH] os/bluestore: implement collect_metadata for BlueStore,
 BlueFS

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/os/bluestore/BlueFS.cc    | 10 ++++++++++
 src/os/bluestore/BlueFS.h     |  1 +
 src/os/bluestore/BlueStore.cc | 13 +++++++++++++
 src/os/bluestore/BlueStore.h  |  2 ++
 4 files changed, 26 insertions(+)

diff --git a/src/os/bluestore/BlueFS.cc b/src/os/bluestore/BlueFS.cc
index 3f7fa0f2a0c..4ca20860a76 100644
--- a/src/os/bluestore/BlueFS.cc
+++ b/src/os/bluestore/BlueFS.cc
@@ -434,6 +434,16 @@ void BlueFS::umount()
   _shutdown_logger();
 }
 
+void BlueFS::collect_metadata(map<string,string> *pm)
+{
+  if (bdev[BDEV_DB])
+    bdev[BDEV_DB]->collect_metadata("bluefs_db_", pm);
+  if (bdev[BDEV_WAL])
+    bdev[BDEV_WAL]->collect_metadata("bluefs_wal_", pm);
+  if (bdev[BDEV_SLOW])
+    bdev[BDEV_SLOW]->collect_metadata("bluefs_slow_", pm);
+}
+
 int BlueFS::fsck()
 {
   std::lock_guard<std::mutex> l(lock);
diff --git a/src/os/bluestore/BlueFS.h b/src/os/bluestore/BlueFS.h
index 28720cbb388..030cf1709d2 100644
--- a/src/os/bluestore/BlueFS.h
+++ b/src/os/bluestore/BlueFS.h
@@ -332,6 +332,7 @@ public:
   int mount();
   void umount();
 
+  void collect_metadata(map<string,string> *pm);
   int fsck();
 
   uint64_t get_fs_usage();
diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index 11c2147d22f..bf58c77ec6e 100644
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -5434,6 +5434,19 @@ int BlueStore::fsck(bool deep)
   return errors;
 }
 
+void BlueStore::collect_metadata(map<string,string> *pm)
+{
+  dout(10) << __func__ << dendl;
+  bdev->collect_metadata("bluestore_bdev_", pm);
+  if (bluefs) {
+    (*pm)["bluefs"] = "1";
+    (*pm)["bluefs_single_shared_device"] = stringify((int)bluefs_single_shared_device);
+    bluefs->collect_metadata(pm);
+  } else {
+    (*pm)["bluefs"] = "0";
+  }
+}
+
 int BlueStore::statfs(struct store_statfs_t *buf)
 {
   buf->reset();
diff --git a/src/os/bluestore/BlueStore.h b/src/os/bluestore/BlueStore.h
index fca4e20f2a4..86cd05b4c31 100644
--- a/src/os/bluestore/BlueStore.h
+++ b/src/os/bluestore/BlueStore.h
@@ -2031,6 +2031,8 @@ public:
 public:
   int statfs(struct store_statfs_t *buf) override;
 
+  void collect_metadata(map<string,string> *pm) override;
+
   bool exists(const coll_t& cid, const ghobject_t& oid) override;
   bool exists(CollectionHandle &c, const ghobject_t& oid) override;
   int set_collection_opts(
-- 
2.39.5