From: xie xingguo <xie.xingguo@zte.com.cn>
Date: Mon, 20 Jun 2016 10:52:51 +0000 (+0800)
Subject: os/bluestore: add sanity check when try to rm_buffer
X-Git-Tag: v11.0.0~97^2~3
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=28503b94d54e539bb66d09daad747de8828cac2d;p=ceph-ci.git

os/bluestore: add sanity check when try to rm_buffer

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

diff --git a/src/os/bluestore/BlueStore.h b/src/os/bluestore/BlueStore.h
index bbe33083e15..b2b3d3373a4 100644
--- a/src/os/bluestore/BlueStore.h
+++ b/src/os/bluestore/BlueStore.h
@@ -223,6 +223,7 @@ public:
     }
     void _rm_buffer(map<uint64_t,std::unique_ptr<Buffer>>::iterator p) {
       cache->_audit_lru("_rm_buffer start");
+      assert(cache->buffer_size >= p->second->length);
       cache->buffer_size -= p->second->length;
       cache->buffer_lru.erase(cache->buffer_lru.iterator_to(*p->second));
       if (p->second->is_writing()) {