From: Yan, Zheng <zyan@redhat.com>
Date: Wed, 4 Feb 2015 12:22:54 +0000 (+0800)
Subject: mds: disallow layout changes for files with data
X-Git-Tag: v0.93~46^2~5^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=cbfa08e558c1f9914f6ffde784963df60c14ebd5;p=ceph.git

mds: disallow layout changes for files with data

Fixes: #10737
Signed-off-by: Yan, Zheng <zyan@redhat.com>
---

diff --git a/src/mds/Server.cc b/src/mds/Server.cc
index e31da938a0e5..036267409e46 100644
--- a/src/mds/Server.cc
+++ b/src/mds/Server.cc
@@ -3924,6 +3924,11 @@ void Server::handle_set_vxattr(MDRequestRef& mdr, CInode *cur,
 	respond_to_request(mdr, -EINVAL);
 	return;
       }
+      if (cur->get_projected_inode()->size ||
+	  cur->get_projected_inode()->truncate_seq > 1) {
+	respond_to_request(mdr, -ENOTEMPTY);
+	return;
+      }
       ceph_file_layout layout = cur->get_projected_inode()->layout;
       rest = name.substr(name.find("layout"));
       const OSDMap *osdmap = mds->objecter->get_osdmap_read();