LU-15973 build: remove AC_DEFINE(__state, state, ...)

RHEL 8.6 build failed with MLNX_OFED 5.6-2.0.9.0 as follows:

error: 'struct task_struct' has no member named 'state'; did you mean '__state'?
 #define __state state
                 ^~~~~

The failure was introduced by
commit bb7c82f13e7a01891edcdf0626c6fb91a240e56e and a proper
way to resolve the original issue was in
commit c04adbcd76725a360f411f09c63df785bf7db426. So, let's
remove the improper way AC_DEFINE(__state, state, ...).

Test-Parameters: trivial fstype=ldiskfs \
clientdistro=el8.6 serverdistro=el8.6 testlist=sanity

Test-Parameters: trivial fstype=zfs \
clientdistro=el8.6 serverdistro=el8.6 testlist=sanity

Change-Id: Icbc897cf5870352311262af8bd59ec24ea9d7301
Fixes: bb7c82f13e7 ("LU-15795 kernel: RHEL 8.6 server support")
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/47799
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Minh Diep <mdiep@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 11d69e7..57c5576 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -2602,29 +2602,6 @@ EXTRA_KCFLAGS="$tmp_flags"
 ]) # LC_HAVE_USER_NAMESPACE_ARG
 
 #
-# LC_TASK_STRUCT_HAS_NEW_STATE
-#
-# kernel 5.13 commit 2f064a59a11ff9bc22e52e9678bc601404c7cb34
-# Change the type and name of task_struct::state. Drop the volatile and
-# shrink it to an 'unsigned int'. Rename it in order to find all uses
-# such that we can use READ_ONCE/WRITE_ONCE as appropriate.
-#
-AC_DEFUN([LC_TASK_STRUCT_HAS_NEW_STATE], [
-tmp_flags="$EXTRA_KCFLAGS"
-EXTRA_KCFLAGS="-Werror"
-LB_CHECK_COMPILE([if 'struct task_struct' has a '__state' member],
-task_struct_state, [
-       #include <linux/sched.h>
-],[
-       ((struct task_struct *)NULL)->__state = 0;
-],[
-       AC_DEFINE(__state, state,
-               ['struct task_struct' has a '__state' member])
-])
-EXTRA_KCFLAGS="$tmp_flags"
-]) # LC_TASK_STRUCT_HAS_NEW_STATE
-
-#
 # LC_HAVE_GET_ACL_RCU_ARG
 #
 # kernel 5.15 commit 0cad6246621b5887d5b33fea84219d2a71f2f99a
@@ -2845,9 +2822,6 @@ AC_DEFUN([LC_PROG_LINUX], [
        # 5.12
        LC_HAVE_USER_NAMESPACE_ARG
 
-       # 5.13
-       LC_TASK_STRUCT_HAS_NEW_STATE
-
        # 5.15
        LC_HAVE_GET_ACL_RCU_ARG