LU-1199 build: Remove obsolete check for 2.4 kernels

[fs/lustre-release.git] / build / autoconf / lustre-build-linux.m4

diff --git a/build/autoconf/lustre-build-linux.m4 b/build/autoconf/lustre-build-linux.m4
index d933e26..0ea5b1a 100644 (file)
--- a/build/autoconf/lustre-build-linux.m4
+++ b/build/autoconf/lustre-build-linux.m4
@@ -1,48 +1,34 @@
 #
 # LB_LINUX_VERSION
 #
-# Set things accordingly for a 2.5 kernel
+# Set things accordingly for a linux kernel
 #
-AC_DEFUN([LB_LINUX_VERSION],
-[LB_CHECK_FILE([$LINUX/include/linux/namei.h],
+AC_DEFUN([LB_LINUX_VERSION],[
+KMODEXT=".ko"
+
+MODULE_TARGET="SUBDIRS"
+makerule="$PWD/build"
+AC_MSG_CHECKING([for external module build support])
+rm -f build/conftest.i
+LB_LINUX_TRY_MAKE([],[],
+       [$makerule LUSTRE_KERNEL_TEST=conftest.i],
+       [test -s build/conftest.i],
        [
-               linux25="yes"
-               KMODEXT=".ko"
+               AC_MSG_RESULT([no])
        ],[
-               KMODEXT=".o"
-               linux25="no"
+               makerule="_module_$makerule"
+               MODULE_TARGET="M"
+               LB_LINUX_TRY_MAKE([],[],
+                       [$makerule LUSTRE_KERNEL_TEST=conftest.i],
+                       [test -s build/conftest.i],
+                       [
+                               AC_MSG_RESULT([yes])
+                       ],[
+                               AC_MSG_ERROR([unknown; check config.log for details])
+                       ])
        ])
-AC_MSG_CHECKING([if you are using Linux 2.6])
-AC_MSG_RESULT([$linux25])
-
-MODULE_TARGET="SUBDIRS"
-if test $linux25 = "yes" ; then
-       makerule="$PWD/build"
-       AC_MSG_CHECKING([for external module build support])
-       rm -f build/conftest.i
-       LB_LINUX_TRY_MAKE([],[],
-               [$makerule LUSTRE_KERNEL_TEST=conftest.i],
-               [test -s build/conftest.i],
-               [
-                       AC_MSG_RESULT([no])
-               ],[
-                       makerule="_module_$makerule"
-                       MODULE_TARGET="M"
-                       LB_LINUX_TRY_MAKE([],[],
-                               [$makerule LUSTRE_KERNEL_TEST=conftest.i],
-                               [test -s build/conftest.i],
-                               [
-                                       AC_MSG_RESULT([yes])
-                               ],[
-                                       AC_MSG_ERROR([unknown; check config.log for details])
-                               ])
-               ])
-else
-       makerule="_dir_$PWD/build"
-fi
 
 AC_SUBST(MODULE_TARGET)
-AC_SUBST(linux25)
 AC_SUBST(KMODEXT)
 ])
 
@@ -482,27 +468,6 @@ AC_DEFUN([LB_LINUX_TRY_MAKE],
 )
 
 #
-# LB_LINUX_CONFIG_BIG_STACK
-#
-# check for big stack patch
-#
-AC_DEFUN([LB_LINUX_CONFIG_BIG_STACK],
-[if test "x$ARCH_UM" = "x" -a "x$linux25" = "xno" ; then
-       case $target_cpu in
-               i?86 | x86_64)
-                       LB_LINUX_CONFIG([STACK_SIZE_16KB],[],[
-                               LB_LINUX_CONFIG([STACK_SIZE_32KB],[],[
-                                       LB_LINUX_CONFIG([STACK_SIZE_64KB],[],[
-                                               AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 16KB stack.])
-                                       ])
-                               ])
-                       ])
-                       ;;
-       esac
-fi
-])
-
-#
 # LB_CONFIG_OFED_BACKPORTS
 #
 # include any OFED backport headers in all compile commands
@@ -622,8 +587,6 @@ fi
 # 2.6.28
 LC_MODULE_LOADING
 
-#LB_LINUX_CONFIG_BIG_STACK
-
 # it's ugly to be doing anything with OFED outside of the lnet module, but
 # this has to be done here so that the backports path is set before all of
 # the LN_PROG_LINUX checks are done
@@ -631,16 +594,6 @@ LB_CONFIG_OFED_BACKPORTS
 ])
 
 #
-# LB_LINUX_CONDITIONALS
-#
-# AM_CONDITIONALS for linux
-#
-AC_DEFUN([LB_LINUX_CONDITIONALS],
-[AM_CONDITIONAL(LINUX25, test x$linux25 = xyes)
-])
-
-
-#
 # LB_CHECK_SYMBOL_EXPORT
 # check symbol exported or not
 # $1 - symbol