From: xie xingguo <xie.xingguo@zte.com.cn>
Date: Wed, 3 Feb 2016 02:41:04 +0000 (+0800)
Subject: KernelDevice: put a guard for sync read
X-Git-Tag: v10.0.4~32^2~2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=b675b2eb190ef39c844280a1dc87e36e4ffb045b;p=ceph.git

KernelDevice: put a guard for sync read

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

diff --git a/src/os/bluestore/KernelDevice.cc b/src/os/bluestore/KernelDevice.cc
index 173926b567ae..f0ef28c6f091 100644
--- a/src/os/bluestore/KernelDevice.cc
+++ b/src/os/bluestore/KernelDevice.cc
@@ -466,6 +466,7 @@ int KernelDevice::read(uint64_t off, uint64_t len, bufferlist *pbl,
     r = -errno;
     goto out;
   }
+  assert((uint64_t)r == len);
   pbl->clear();
   pbl->push_back(p);