NFS/RDMA backport: check if kernel exports xprt_put symbol.

Signed-off-by: Jeff Becker <Jeffrey.C.Becker@nasa.gov>

diff --git a/config/rdma.m4 b/config/rdma.m4
index 0f133918d0947fde36a1ed560efd19145a67314d..aaddbef8d18d25f7c18ab249f4b0a923b9ade964 100644 (file)
--- a/config/rdma.m4
+++ b/config/rdma.m4
@@ -3499,6 +3499,12 @@ AC_DEFUN([LINUX_CONFIG_COMPAT],
                        [pat_enabled is exported by the kernel])],
        [])
 
+       LB_CHECK_SYMBOL_EXPORT([xprt_put],
+               [net/sunrpc/xprt.c],
+               [AC_DEFINE(HAVE_XPRT_PUT_EXPORTED, 1,
+                       [xprt_put is exported by the kernel])],
+       [])
+
        AC_MSG_CHECKING([if configfs.h default_groups is list_head])
        LB_LINUX_TRY_COMPILE([
                #include <linux/configfs.h>