diff --git a/[refs] b/[refs]
index d56d8c32bf00..1f05959a3424 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 15745320f374aa6cbfe4836b76469159c0f49640
+refs/heads/master: 4efa53f0907bb4378015c129a2c11b8d3a90bce2
diff --git a/trunk/fs/cifs/file.c b/trunk/fs/cifs/file.c
index b1807fd1ac40..792549193865 100644
--- a/trunk/fs/cifs/file.c
+++ b/trunk/fs/cifs/file.c
@@ -545,6 +545,7 @@ int cifs_close(struct inode *inode, struct file *file)
 	} else
 		rc = -EBADF;
 
+	read_lock(&GlobalSMBSeslock);
 	if (list_empty(&(CIFS_I(inode)->openFileList))) {
 		cFYI(1, ("closing last open instance for inode %p", inode));
 		/* if the file is not open we do not know if we can cache info
@@ -552,6 +553,7 @@ int cifs_close(struct inode *inode, struct file *file)
 		CIFS_I(inode)->clientCanCacheRead = FALSE;
 		CIFS_I(inode)->clientCanCacheAll  = FALSE;
 	}
+	read_unlock(&GlobalSMBSeslock);
 	if ((rc == 0) && CIFS_I(inode)->write_behind_rc)
 		rc = CIFS_I(inode)->write_behind_rc;
 	FreeXid(xid);