])
#
-# LIBCFS_STRUCT_PAGE_LIST
-#
-# 2.6.4 no longer has page->list
-#
-AC_DEFUN([LIBCFS_STRUCT_PAGE_LIST],
-[AC_MSG_CHECKING([if struct page has a list field])
-LB_LINUX_TRY_COMPILE([
- #include <linux/mm.h>
-],[
- struct page page;
- &page.list;
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_PAGE_LIST, 1, [struct page has a list field])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LIBCFS_STRUCT_SIGHAND
-#
-# red hat 2.4 adds sighand to struct task_struct
-#
-AC_DEFUN([LIBCFS_STRUCT_SIGHAND],
-[AC_MSG_CHECKING([if task_struct has a sighand field])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- struct task_struct p;
- p.sighand = NULL;
-],[
- AC_DEFINE(CONFIG_RH_2_4_20, 1, [this kernel contains Red Hat 2.4.20 patches])
- AC_MSG_RESULT([yes])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
# LIBCFS_FUNC_CPU_ONLINE
#
# cpu_online is different in rh 2.4, vanilla 2.4, and 2.6
AC_DEFUN([LIBCFS_FUNC_CPU_ONLINE],
[AC_MSG_CHECKING([if kernel defines cpu_online()])
LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
+ #include <linux/sched.h>
],[
- cpu_online(0);
+ cpu_online(0);
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CPU_ONLINE, 1, [cpu_online found])
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_CPU_ONLINE, 1, [cpu_online found])
],[
- AC_MSG_RESULT([no])
+ AC_MSG_RESULT([no])
])
])
])
#
-# LIBCFS_TYPE_CPUMASK_T
-#
-# same goes for cpumask_t
-#
-AC_DEFUN([LIBCFS_TYPE_CPUMASK_T],
-[AC_MSG_CHECKING([if kernel defines cpumask_t])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- return sizeof (cpumask_t);
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CPUMASK_T, 1, [cpumask_t found])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
# LIBCFS_FUNC_SHOW_TASK
#
# we export show_task(), but not all kernels have it (yet)
[kernel/ksyms.c kernel/sched.c],[
AC_DEFINE(HAVE_SHOW_TASK, 1, [show_task is exported])
],[
+ LB_CHECK_SYMBOL_EXPORT([sched_show_task],
+ [kernel/ksyms.c kernel/sched.c],[
+ AC_DEFINE(HAVE_SCHED_SHOW_TASK, 1, [sched_show_task is exported])
+ ],[])
])
])
-# check userland & kernel __u64 type
-AC_DEFUN([LIBCFS_U64_LONG_LONG],
-[AC_MSG_CHECKING([u64 is long long type])
-tmp_flags="$CFLAGS"
-CFLAGS="$CFLAGS -Werror"
-AC_COMPILE_IFELSE([
- #include <linux/types.h>
- #include <linux/stddef.h>
- int main(void) {
- unsigned long long *data1;
- __u64 *data2 = NULL;
-
- data1 = data2;
- return 0;
- }
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
- [__u64 is long long type])
-],[
- AC_MSG_RESULT([no])
-])
-CFLAGS="$tmp_flags"
+# check kernel __u64 type
+AC_DEFUN([LIBCFS_U64_LONG_LONG_LINUX],
+[
AC_MSG_CHECKING([kernel __u64 is long long type])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="$EXTRA_KCFLAGS -Werror"
])
])
+#2.6.23 has new shrinker API
+AC_DEFUN([LC_REGISTER_SHRINKER],
+[AC_MSG_CHECKING([if kernel has register_shrinker])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/mm.h>
+],[
+ register_shrinker(NULL);
+], [
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_REGISTER_SHRINKER, 1,
+ [kernel has register_shrinker])
+],[
+ AC_MSG_RESULT([no])
+])
+])
+
# 2.6.24
AC_DEFUN([LIBCFS_NETLINK_CBMUTEX],
[AC_MSG_CHECKING([for mutex in netlink_kernel_create])
#
AC_DEFUN([LIBCFS_FUNC_DUMP_TRACE],
[LB_CHECK_SYMBOL_EXPORT([dump_trace],
-[kernel/ksyms.c arch/${LINUX_ARCH%_64}/kernel/traps_64.c],[
+[kernel/ksyms.c arch/${LINUX_ARCH%_64}/kernel/traps_64.c arch/x86/kernel/dumpstack_32.c arch/x86/kernel/dumpstack_64.c],[
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="-Werror"
AC_MSG_CHECKING([whether we can really use dump_trace])
])
#
+# LIBCFS_HAVE_IS_COMPAT_TASK
+#
+# Added in 2.6.17, it wasn't until 2.6.29 that all
+# Linux architectures have is_compat_task()
+#
+AC_DEFUN([LIBCFS_HAVE_IS_COMPAT_TASK],
+[AC_MSG_CHECKING([if is_compat_task() is declared])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/compat.h>
+],[
+ int i = is_compat_task();
+],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_IS_COMPAT_TASK, 1, [is_compat_task() is available])
+],[
+ AC_MSG_RESULT([no])
+])
+])
+
+#
+# LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
+#
+# 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
+#
+AC_DEFUN([LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK],
+[AC_MSG_CHECKING([if 'struct stacktrace_ops' has 'walk_stack' field])
+LB_LINUX_TRY_COMPILE([
+ #include <asm/stacktrace.h>
+ unsigned long walkstack(struct thread_info *tinfo,
+ unsigned long *stack,
+ unsigned long bp,
+ const struct stacktrace_ops *ops,
+ void *data,
+ unsigned long *end,
+ int *graph);
+],[
+ struct stacktrace_ops ops;
+
+ ops.walk_stack = walkstack;
+],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field])
+],[
+ AC_MSG_RESULT([no])
+])
+])
+
+#
+# LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
+#
+# 2.6.34 adds __add_wait_queue_exclusive
+#
+AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE],
+[AC_MSG_CHECKING([if __add_wait_queue_exclusive exists])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/wait.h>
+],[
+ wait_queue_head_t queue;
+ wait_queue_t wait;
+
+ __add_wait_queue_exclusive(&queue, &wait);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
+ [__add_wait_queue_exclusive exists])
+],[
+ AC_MSG_RESULT(no)
+])
+])
+
+# RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
+AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
+[AC_MSG_CHECKING([shrinker want self pointer in handler])
+LB_LINUX_TRY_COMPILE([
+ #include <linux/mm.h>
+],[
+ struct shrinker tmp = {0};
+ tmp.shrink(NULL, 0, 0);
+],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
+ [shrinker want self pointer in handler])
+],[
+ AC_MSG_RESULT(no)
+])
+])
+
+#
# LIBCFS_PROG_LINUX
#
# LNet linux kernel checks
[
LIBCFS_FUNC_CPU_ONLINE
LIBCFS_TYPE_GFP_T
-LIBCFS_TYPE_CPUMASK_T
LIBCFS_CONFIG_PANIC_DUMPLOG
-LIBCFS_STRUCT_PAGE_LIST
-LIBCFS_STRUCT_SIGHAND
LIBCFS_FUNC_SHOW_TASK
-LIBCFS_U64_LONG_LONG
-LIBCFS_SSIZE_T_LONG
-LIBCFS_SIZE_T_LONG
+LIBCFS_U64_LONG_LONG_LINUX
LIBCFS_TASK_RCU
# 2.6.18
LIBCFS_TASKLIST_LOCK
+LIBCFS_HAVE_IS_COMPAT_TASK
# 2.6.19
LIBCFS_NETLINK
LIBCFS_NLMSG_MULTICAST
# 2.6.23
LIBCFS_KMEM_CACHE_CREATE_DTOR
LIBCFS_NETLINK_CBMUTEX
+LC_REGISTER_SHRINKER
# 2.6.24
LIBCFS_SYSCTL_UNNUMBERED
LIBCFS_SCATTERLIST_SETPAGE
# 2.6.30
LIBCFS_FUNC_UNSHARE_FS_STRUCT
LIBCFS_SOCK_MAP_FD_2ARG
+# 2.6.32
+LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
+LC_SHRINKER_WANT_SHRINK_PTR
+# 2.6.34
+LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
])
#
[],
[#include <asm/types.h>])
+# check userland __u64 type
+AC_MSG_CHECKING([userspace __u64 is long long type])
+tmp_flags="$CFLAGS"
+CFLAGS="$CFLAGS -Werror"
+AC_COMPILE_IFELSE([
+ #include <stdio.h>
+ #include <linux/types.h>
+ #include <linux/stddef.h>
+ int main(void) {
+ unsigned long long *data1;
+ __u64 *data2 = NULL;
+
+ data1 = data2;
+ return 0;
+ }
+],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
+ [__u64 is long long type])
+],[
+ AC_MSG_RESULT([no])
+])
+CFLAGS="$tmp_flags"
+
# -------- Check for required packages --------------
git://git.whamcloud.com / fs / lustre-release.git / blobdiff