LU-1484 lprocfs: enable HAVE_PROCFS_USERS for rhel kernels

For rhel kernels, given only the kernel-devel rpm it is not possible
to tell if proc_dir_entry_aux is defined, so assume it is.  It has
been included since late in the 5.x release cycle.

Originally Change-Id: If17ecb0902ec90a1af6228d2b9b1b72bc68a6672

Test-Parameters: envdefinitions=SLOW=yes clientdistro=el5   serverdistro=el5 clientarch=x86_64 serverarch=x86_64   testlist=recovery-small
Signed-off-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Change-Id: I7cde85592759abe020ff31fbf4840717b3e95bef
Reviewed-on: http://review.whamcloud.com/5468
Reviewed-by: Bobi Jam <bobijam@gmail.com>
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Jian Yu <jian.yu@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 297b3a5..ba47d60 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -1625,7 +1625,14 @@ LB_LINUX_TRY_COMPILE([
                AC_DEFINE(HAVE_PROCFS_USERS, 1,
                        [kernel has pde_users member in proc_dir_entry_aux])
        ],[
-               AC_MSG_RESULT([no])
+               if test x$RHEL_KERNEL = xyes; then
+                       AC_MSG_RESULT([yes])
+                       AC_DEFINE(HAVE_PROCFS_USERS, 1,
+                               [assuming kernel has pde_users member in proc_dir_entry_aux])
+                       AC_MSG_WARN([Assuming kernel has proc_dir_entry_aux])
+               else
+                       AC_MSG_RESULT([no])
+               fi
        ])
 ])
 ])