From 3e664bd5dd5fec48669e6e64328a1efc08cc76bd Mon Sep 17 00:00:00 2001
From: WANG Guoqin <wangguoqin1001@gmail.com>
Date: Thu, 21 Sep 2017 16:24:43 +0800
Subject: [PATCH] ceph-bluestore-tool: check if bdev is empty on
 'bluefs-bdev-expand'

Signed-off-by: WANG Guoqin <wangguoqin1001@gmail.com>
---
 src/os/bluestore/bluestore_tool.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/os/bluestore/bluestore_tool.cc b/src/os/bluestore/bluestore_tool.cc
index 23d59544208..ba2ff2a688a 100644
--- a/src/os/bluestore/bluestore_tool.cc
+++ b/src/os/bluestore/bluestore_tool.cc
@@ -297,6 +297,7 @@ int main(int argc, char **argv)
     for (int devid : { BlueFS::BDEV_WAL, BlueFS::BDEV_DB }) {
       interval_set<uint64_t> before;
       fs->get_block_extents(devid, &before);
+      if (before.empty()) continue;
       uint64_t end = before.range_end();
       uint64_t size = fs->get_block_device_size(devid);
       if (end < size) {
-- 
2.47.3