LU-6215 libcfs: shrinker code needs atomic.h

In the latest linux kernel code struct shrinker now
includes a new atomic_long_t so atomic.h is required
for the libcfs autoconf test will pass.

Change-Id: I7b5a5cc030bc8e8fc4cbd0c47bc75f73b07742f7
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: http://review.whamcloud.com/14662
Tested-by: Jenkins
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Thomas Stibor <t.stibor@gsi.de>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>

diff --git a/libcfs/autoconf/lustre-libcfs.m4 b/libcfs/autoconf/lustre-libcfs.m4
index d5eb5cf..a3b6142 100644 (file)
--- a/libcfs/autoconf/lustre-libcfs.m4
+++ b/libcfs/autoconf/lustre-libcfs.m4
@@ -183,6 +183,7 @@ dump_trace_address, [
 AC_DEFUN([LC_SHRINK_CONTROL], [
 LB_CHECK_COMPILE([if 'shrink_control' is present],
 shrink_control, [
+       #include <linux/atomic.h>
        #include <linux/mm.h>
 ],[
        struct shrink_control tmp = {0};