From: Yan, Zheng <zyan@redhat.com>
Date: Wed, 13 Jan 2016 07:55:02 +0000 (+0800)
Subject: client: check if Fh is readable before read
X-Git-Tag: v10.0.3~12^2~1^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=eae97f8d10f6577349a316bf2045dc06486da783;p=ceph.git

client: check if Fh is readable before read

Fixes: #11517
Signed-off-by: Yan, Zheng <zyan@redhat.com>
---

diff --git a/src/client/Client.cc b/src/client/Client.cc
index 9a0c36a5f46..44c3e76e19c 100644
--- a/src/client/Client.cc
+++ b/src/client/Client.cc
@@ -7405,6 +7405,8 @@ int Client::_read(Fh *f, int64_t offset, uint64_t size, bufferlist *bl)
   const md_config_t *conf = cct->_conf;
   Inode *in = f->inode.get();
 
+  if ((f->mode & CEPH_FILE_MODE_RD) == 0)
+    return -EBADF;
   //bool lazy = f->mode == CEPH_FILE_MODE_LAZY;
 
   bool movepos = false;