From: xie xingguo <xie.xingguo@zte.com.cn>
Date: Mon, 18 Jul 2016 07:49:04 +0000 (+0800)
Subject: os/bluestore: assert available of stat doesn't underflow
X-Git-Tag: ses5-milestone5~354^2~2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=93978195225439dffee6d0acb0deea9cbc3db399;p=ceph.git

os/bluestore: assert available of stat doesn't underflow

Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>
---

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index 8f1548a7c9762..af987e1f837df 100644
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -3268,6 +3268,7 @@ int BlueStore::statfs(struct store_statfs_t *buf)
 
   buf->reset();
   buf->total = bdev->get_size();
+  assert(alloc->get_free() >= bluefs_len);
   buf->available = (alloc->get_free() - bluefs_len);
 
   bufferlist bl;