LU-2800 autoconf: update LC_EXPORT_TRUNCATE_COMPLETE

The LC_EXPORT_TRUNCATE_COMPLETE is under the heading for RHEL4 patches
which is misleading. The test checks for:

- exported truncate_complete_page, which was never in a release
- remove_from_page_cache, exported in v2.6.35
- delete_from_page_cache, exported in v2.6.39, replaced
  removed_from_page_cache

Let's update the comments and move the test into a place in the list
where it makes sense at a glance.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: James Simmons <uja.ornl@gmail.com>
Change-Id: I8e53cc10d72528f9107c375cd7bb8527a27fadbd
Reviewed-on: http://review.whamcloud.com/5335
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 90a26b3..3dc9cff 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -216,10 +216,10 @@ AC_DEFUN([LC_QUOTA_CONFIG],
        ])
 ])
 
        ])
 ])
 

-# truncate_complete_page() was exported from RHEL5/SLES10, but not in SLES11 SP0 (2.6.27)
+# truncate_complete_page() has never been exported from an upstream kernel

 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
 # delete_from_page_cache() is exported from 2.6.39
 # remove_from_page_cache() was exported between 2.6.35 and 2.6.38
 # delete_from_page_cache() is exported from 2.6.39

-AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
+AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE_PAGE],

          [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
                                  [mm/truncate.c],
                                  [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
          [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
                                  [mm/truncate.c],
                                  [AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,


@@ -1477,9 +1477,6 @@ AC_DEFUN([LC_PROG_LINUX],
          LC_CONFIG_LRU_RESIZE
          LC_LLITE_LLOOP_MODULE
 
          LC_CONFIG_LRU_RESIZE
          LC_LLITE_LLOOP_MODULE
 

-         # RHEL4 patches
-         LC_EXPORT_TRUNCATE_COMPLETE
-

          LC_CAPA_CRYPTO
          LC_CONFIG_RMTCLIENT
          LC_CONFIG_GSS
          LC_CAPA_CRYPTO
          LC_CONFIG_RMTCLIENT
          LC_CONFIG_GSS


@@ -1523,6 +1520,7 @@ AC_DEFUN([LC_PROG_LINUX],
          # 2.6.35, 3.0.0
          LC_FILE_FSYNC
          LC_EXPORT_SIMPLE_SETATTR
          # 2.6.35, 3.0.0
          LC_FILE_FSYNC
          LC_EXPORT_SIMPLE_SETATTR

+        LC_EXPORT_TRUNCATE_COMPLETE_PAGE

 
          # 2.6.36
          LC_FS_STRUCT_RWLOCK
 
          # 2.6.36
          LC_FS_STRUCT_RWLOCK