#
-# LN_CONFIG_CDEBUG
+# LIBCFS_CONFIG_CDEBUG
#
# whether to enable various libcfs debugs (CDEBUG, ENTRY/EXIT, LASSERT, etc.)
#
-AC_DEFUN([LN_CONFIG_CDEBUG],
-[
+AC_DEFUN([LIBCFS_CONFIG_CDEBUG], [
AC_MSG_CHECKING([whether to enable CDEBUG, CWARN])
AC_ARG_ENABLE([libcfs_cdebug],
AC_HELP_STRING([--disable-libcfs-cdebug],
- [disable libcfs CDEBUG, CWARN]),
- [],[enable_libcfs_cdebug='yes'])
+ [disable libcfs CDEBUG, CWARN]),
+ [], [enable_libcfs_cdebug="yes"])
AC_MSG_RESULT([$enable_libcfs_cdebug])
-if test x$enable_libcfs_cdebug = xyes; then
- AC_DEFINE(CDEBUG_ENABLED, 1, [enable libcfs CDEBUG, CWARN])
-else
- AC_DEFINE(CDEBUG_ENABLED, 0, [disable libcfs CDEBUG, CWARN])
-fi
+AS_IF([test "x$enable_libcfs_cdebug" = xyes],
+ [AC_DEFINE(CDEBUG_ENABLED, 1, [enable libcfs CDEBUG, CWARN])])
AC_MSG_CHECKING([whether to enable ENTRY/EXIT])
AC_ARG_ENABLE([libcfs_trace],
AC_HELP_STRING([--disable-libcfs-trace],
- [disable libcfs ENTRY/EXIT]),
- [],[enable_libcfs_trace='yes'])
+ [disable libcfs ENTRY/EXIT]),
+ [], [enable_libcfs_trace="yes"])
AC_MSG_RESULT([$enable_libcfs_trace])
-if test x$enable_libcfs_trace = xyes; then
- AC_DEFINE(CDEBUG_ENTRY_EXIT, 1, [enable libcfs ENTRY/EXIT])
-else
- AC_DEFINE(CDEBUG_ENTRY_EXIT, 0, [disable libcfs ENTRY/EXIT])
-fi
+AS_IF([test "x$enable_libcfs_trace" = xyes],
+ [AC_DEFINE(CDEBUG_ENTRY_EXIT, 1, [enable libcfs ENTRY/EXIT])])
AC_MSG_CHECKING([whether to enable LASSERT, LASSERTF])
AC_ARG_ENABLE([libcfs_assert],
AC_HELP_STRING([--disable-libcfs-assert],
- [disable libcfs LASSERT, LASSERTF]),
- [],[enable_libcfs_assert='yes'])
+ [disable libcfs LASSERT, LASSERTF]),
+ [], [enable_libcfs_assert="yes"])
AC_MSG_RESULT([$enable_libcfs_assert])
-if test x$enable_libcfs_assert = xyes; then
- AC_DEFINE(LIBCFS_DEBUG, 1, [enable libcfs LASSERT, LASSERTF])
-fi
-])
+AS_IF([test x$enable_libcfs_assert = xyes],
+ [AC_DEFINE(LIBCFS_DEBUG, 1, [enable libcfs LASSERT, LASSERTF])])
+]) # LIBCFS_CONFIG_CDEBUG
#
# LIBCFS_CONFIG_PANIC_DUMPLOG
#
# check if tunable panic_dumplog is wanted
#
-AC_DEFUN([LIBCFS_CONFIG_PANIC_DUMPLOG],
-[AC_MSG_CHECKING([for tunable panic_dumplog support])
+AC_DEFUN([LIBCFS_CONFIG_PANIC_DUMPLOG], [
+AC_MSG_CHECKING([whether to use tunable 'panic_dumplog' support])
AC_ARG_ENABLE([panic_dumplog],
- AC_HELP_STRING([--enable-panic_dumplog],
- [enable panic_dumplog]),
- [],[enable_panic_dumplog='no'])
-if test x$enable_panic_dumplog = xyes ; then
- AC_DEFINE(LNET_DUMP_ON_PANIC, 1, [use dumplog on panic])
- AC_MSG_RESULT([yes (by request)])
-else
- AC_MSG_RESULT([no])
-fi
-])
-
-# 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"
-LB_LINUX_TRY_COMPILE([
- #include <linux/types.h>
- #include <linux/stddef.h>
+ AC_HELP_STRING([--enable-panic_dumplog],
+ [enable panic_dumplog]),
+ [], [enable_panic_dumplog="no"])
+AC_MSG_RESULT([$enable_panic_dumplog])
+AS_IF([test "x$enable_panic_dumplog" = xyes],
+ [AC_DEFINE(LNET_DUMP_ON_PANIC, 1, [use dumplog on panic])])
+]) # LIBCFS_CONFIG_PANIC_DUMPLOG
+
+#
+# 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], [
+LB_CHECK_COMPILE([if 'struct stacktrace_ops' has 'walk_stack' field],
+stacktrace_ops_walk_stack, [
+ #include <asm/stacktrace.h>
+],[
+ ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
],[
- unsigned long long *data;
+ AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1,
+ ['struct stacktrace_ops' has 'walk_stack' field])
+])
+]) # LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
- data = (__u64*)sizeof(data);
+#
+# LIBCFS_STACKTRACE_WARNING
+#
+# 3.0 removes stacktrace_ops warning* functions
+#
+AC_DEFUN([LIBCFS_STACKTRACE_WARNING], [
+LB_CHECK_COMPILE([if 'stacktrace_ops.warning' is exist],
+stacktrace_ops_warning, [
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
- [kernel __u64 is long long type])
+ ((struct stacktrace_ops *)0)->warning(NULL, NULL);
],[
- AC_MSG_RESULT([no])
+ AC_DEFINE(HAVE_STACKTRACE_WARNING, 1,
+ [stacktrace_ops.warning is exist])
])
-EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_STACKTRACE_WARNING
+
+#
+# LC_SHRINKER_WANT_SHRINK_PTR
+#
+# RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
+#
+AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR], [
+LB_CHECK_COMPILE([if 'shrinker' want self pointer in handler],
+shrink_self_pointer, [
+ #include <linux/mm.h>
+],[
+ struct shrinker *tmp = NULL;
+ tmp->shrink(tmp, 0, 0);
+],[
+ AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
+ [shrinker want self pointer in handler])
])
+]) # LC_SHRINKER_WANT_SHRINK_PTR
-# check cpumask_size (2.6.28)
-AC_DEFUN([LIBCFS_CPUMASK_SIZE],
-[AC_MSG_CHECKING([whether have cpumask_size()])
-LB_LINUX_TRY_COMPILE([
- #include <linux/cpumask.h>
+#
+# LIBCFS_SYSCTL_CTLNAME
+#
+# 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
+#
+AC_DEFUN([LIBCFS_SYSCTL_CTLNAME], [
+LB_CHECK_COMPILE([if 'ctl_table' has a 'ctl_name' field],
+ctl_table_ctl_name, [
+ #include <linux/sysctl.h>
],[
- int size = cpumask_size();
+ struct ctl_table ct;
+ ct.ctl_name = sizeof(ct);
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_CPUMASK_SIZE, 1, [have cpumask_size()])
+ AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
+ [ctl_table has ctl_name field])
+])
+]) # LIBCFS_SYSCTL_CTLNAME
+
+#
+# LIBCFS_MODULE_LOCKING
+#
+# 2.6.36 introduced locking to module params. RHEL6 lacks this support
+#
+AC_DEFUN([LIBCFS_MODULE_LOCKING],[
+LB_CHECK_COMPILE([does the kernel support module param locking],
+module_param_locking, [
+ #include <linux/moduleparam.h>
+],[
+ __kernel_param_lock(NULL);
+ __kernel_param_unlock(NULL);
],[
- AC_MSG_RESULT(NO)
+ AC_DEFINE(HAVE_MODULE_PARAM_LOCKING, 1,
+ [locking module param is supported])
])
+]) # LIBCFS_MODULE_LOCKING
+
+#
+# LIBCFS_KSTRTOUL
+#
+# 2.6.38 kstrtoul is added
+#
+AC_DEFUN([LIBCFS_KSTRTOUL], [
+LB_CHECK_COMPILE([if Linux kernel has 'kstrtoul'],
+kstrtoul, [
+ #include <linux/kernel.h>
+],[
+ unsigned long result;
+ return kstrtoul("12345", 0, &result);
+],[
+ AC_DEFINE(HAVE_KSTRTOUL, 1,
+ [kernel has kstrtoul])
])
+]) # LIBCFS_KSTRTOUL
-# check cpu topology functions
#
-# topology_core_cpumask (2.6.29, not on all archs)
-# topology_core_siblings (not on all archs)
-# topology_thread_cpumask (2.6.29, not on all archs)
-# topology_thread_siblings (not on all archs)
-# cpumask_of_node/node_to_cpumask (not always exported)
-AC_DEFUN([LIBCFS_CPU_TOPOLOGY],
-[AC_MSG_CHECKING([whether have topology.h])
-LB_LINUX_TRY_COMPILE([
- #include <linux/topology.h>
-],[],[
- AC_DEFINE(HAVE_CPU_TOPOLOGY, 1, [have CPU topology])
- AC_MSG_RESULT(yes)
+# LIBCFS_DUMP_TRACE_ADDRESS
+#
+# 2.6.39 adds a base pointer address argument to dump_trace
+#
+AC_DEFUN([LIBCFS_DUMP_TRACE_ADDRESS], [
+LB_CHECK_COMPILE([if 'dump_trace' want address],
+dump_trace_address, [
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
+],[
+ dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
+],[
+ AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
+ [dump_trace want address argument])
+])
+]) # LIBCFS_DUMP_TRACE_ADDRESS
- AC_MSG_CHECKING([whether have topology_core_cpumask])
- LB_LINUX_TRY_COMPILE([
- #include <linux/topology.h>
- ],[
- cpumask_t *mask = topology_core_cpumask(0);
- ],[
- AC_DEFINE(HAVE_TOPOLOGY_CORE_CPUMASK, 1,
- [have topology_core_cpumask])
- AC_MSG_RESULT(yes)
- ],[
- AC_MSG_RESULT(no)
- ])
+#
+# LC_SHRINK_CONTROL
+#
+# FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
+# pressure shrinker from Linux 3.0
+#
+AC_DEFUN([LC_SHRINK_CONTROL], [
+LB_CHECK_COMPILE([if 'shrink_control' is present],
+shrink_control, [
+ #include <linux/atomic.h>
+ #include <linux/mm.h>
+],[
+ struct shrink_control tmp = {0};
+ tmp.nr_to_scan = sizeof(tmp);
+],[
+ AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
+ [shrink_control is present])
+])
+]) # LC_SHRINK_CONTROL
- AC_MSG_CHECKING([whether have topology_core_siblings])
- LB_LINUX_TRY_COMPILE([
- #include <linux/topology.h>
- ],[
- cpumask_t mask = topology_core_siblings(0);
- ],[
- AC_DEFINE(HAVE_TOPOLOGY_CORE_SIBLINGS, 1,
- [have topology_core_siblings])
- AC_MSG_RESULT(yes)
- ],[
- AC_MSG_RESULT(no)
- ])
+#
+# LIBCFS_PROCESS_NAMESPACE
+#
+# 3.5 introduced process namespace
+AC_DEFUN([LIBCFS_PROCESS_NAMESPACE], [
+LB_CHECK_LINUX_HEADER([linux/uidgid.h], [
+ AC_DEFINE(HAVE_UIDGID_HEADER, 1,
+ [uidgid.h is present])])
+]) # LIBCFS_PROCESS_NAMESPACE
- AC_MSG_CHECKING([whether have topology_thread_cpumask])
- LB_LINUX_TRY_COMPILE([
- #include <linux/topology.h>
- ],[
- cpumask_t *mask = topology_thread_cpumask(0);
- ],[
- AC_DEFINE(HAVE_TOPOLOGY_THREAD_CPUMASK, 1,
- [have topology_thread_cpumask])
- AC_MSG_RESULT(yes)
- ],[
- AC_MSG_RESULT(no)
- ])
+#
+# LIBCFS_I_UID_READ
+#
+# 3.5 added helpers to read the new uid/gid types from VFS structures
+# SLE11 SP3 has uidgid.h but not the helpers
+#
+AC_DEFUN([LIBCFS_I_UID_READ], [
+LB_CHECK_COMPILE([if 'i_uid_read' is present],
+i_uid_read, [
+ #include <linux/fs.h>
+],[
+ i_uid_read(NULL);
+],[
+ AC_DEFINE(HAVE_I_UID_READ, 1, [i_uid_read is present])
+])
+]) # LIBCFS_I_UID_READ
- AC_MSG_CHECKING([whether have topology_thread_siblings])
- LB_LINUX_TRY_COMPILE([
- #include <linux/topology.h>
- ],[
- cpumask_t mask = topology_thread_siblings(0);
- ],[
- AC_DEFINE(HAVE_TOPOLOGY_THREAD_SIBLINGS, 1,
- [have topology_thread_siblings])
- AC_MSG_RESULT(yes)
- ],[
- AC_MSG_RESULT(no)
- ])
+#
+# LIBCFS_HAVE_CRC32
+#
+AC_DEFUN([LIBCFS_HAVE_CRC32], [
+LB_CHECK_CONFIG_IM([CRC32],
+ [have_crc32="yes"], [have_crc32="no"])
+AS_IF([test "x$have_crc32" = xyes],
+ [AC_DEFINE(HAVE_CRC32, 1,
+ [kernel compiled with CRC32 functions])])
+]) # LIBCFS_HAVE_CRC32
- AC_MSG_CHECKING([whether OFED backports have cpumask_of_node])
- # Some OFED has cpumask_of_node backports defined in
- # its private include/linux/cpumask.h. However, it is
- # defined conflictingly with kernel's cpumask_of_node.
- if test -f $OFED_BACKPORT_PATH/linux/cpumask.h; then
- grep -q cpumask_of_node $OFED_BACKPORT_PATH/linux/cpumask.h 2>/dev/null
- rc=$?
- if test $rc -eq 0; then
- AC_DEFINE(HAVE_OFED_CPUMASK_OF_NODE, 1, [have cpumask_of_node])
- AC_MSG_RESULT(yes)
- else
- AC_MSG_RESULT(no)
- fi
- fi
-
- AC_MSG_CHECKING([whether have cpumask_of_node])
- LB_LINUX_TRY_COMPILE([
- #include <linux/topology.h>
- ],[
- cpumask_t *mask = cpumask_of_node(0);
- ],[
- AC_DEFINE(HAVE_CPUMASK_OF_NODE, 1, [have cpumask_of_node])
- AC_MSG_RESULT(yes)
- ],[
- AC_MSG_RESULT(no)
- ])
+#
+# LIBCFS_ENABLE_CRC32_ACCEL
+#
+AC_DEFUN([LIBCFS_ENABLE_CRC32_ACCEL], [
+LB_CHECK_CONFIG_IM([CRYPTO_CRC32_PCLMUL],
+ [enable_crc32_crypto="no"], [enable_crc32_crypto="yes"])
+AS_IF([test "x$have_crc32" = xyes -a "x$enable_crc32_crypto" = xyes], [
+ AC_DEFINE(NEED_CRC32_ACCEL, 1, [need pclmulqdq based crc32])
+ AC_MSG_WARN([No crc32 pclmulqdq crypto api found, enable internal pclmulqdq based crc32])])
+]) # LIBCFS_ENABLE_CRC32_ACCEL
- AC_MSG_CHECKING([whether have cpumask_copy])
- LB_LINUX_TRY_COMPILE([
- #include <linux/cpumask.h>
- ],[
- cpumask_copy(NULL, NULL);
- ],[
- AC_DEFINE(HAVE_CPUMASK_COPY, 1, [have cpumask_copy])
- AC_MSG_RESULT(yes)
- ],[
- AC_MSG_RESULT(no)
- ])
+#
+# LIBCFS_ENABLE_CRC32C_ACCEL
+#
+AC_DEFUN([LIBCFS_ENABLE_CRC32C_ACCEL], [
+LB_CHECK_CONFIG_IM([CRYPTO_CRC32C_INTEL],
+ [enable_crc32c_crypto="no"], [enable_crc32c_crypto="yes"])
+AS_IF([test "x$enable_crc32c_crypto" = xyes], [
+ AC_DEFINE(NEED_CRC32C_ACCEL, 1, [need pclmulqdq based crc32c])
+ AC_MSG_WARN([No crc32c pclmulqdq crypto api found, enable internal pclmulqdq based crc32c])])
+]) # LIBCFS_ENABLE_CRC32C_ACCEL
- AC_MSG_CHECKING([whether have node_to_cpumask])
- LB_LINUX_TRY_COMPILE([
- #include <linux/topology.h>
- ],[
- cpumask_t mask = node_to_cpumask(0);
- ],[
- AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1, [have node_to_cpumask])
- AC_MSG_RESULT(yes)
- ],[
- AC_MSG_RESULT(no)
- ])
+#
+# Kernel version 3.11 introduced ktime_get_ts64
+#
+AC_DEFUN([LIBCFS_KTIME_GET_TS64],[
+LB_CHECK_COMPILE([does function 'ktime_get_ts64' exist],
+ktime_get_ts64, [
+ #include <linux/hrtimer.h>
+ #include <linux/ktime.h>
],[
- AC_MSG_RESULT(NO)
+ struct timespec64 *ts = NULL;
+
+ ktime_get_ts64(ts);
+],[
+ AC_DEFINE(HAVE_KTIME_GET_TS64, 1,
+ ['ktime_get_ts64' is available])
])
+]) # LIBCFS_KTIME_GET_TS64
+
+#
+# Kernel version 3.12-rc4 commit c2d816443ef30 added prepare_to_wait_event()
+#
+AC_DEFUN([LIBCFS_PREPARE_TO_WAIT_EVENT],[
+LB_CHECK_COMPILE([does function 'prepare_to_wait_event' exist],
+prepare_to_wait_event, [
+ #include <linux/wait.h>
+],[
+ prepare_to_wait_event(NULL, NULL, 0);
+],[
+ AC_DEFINE(HAVE_PREPARE_TO_WAIT_EVENT, 1,
+ ['prepare_to_wait_event' is available])
+])
+]) # LIBCFS_PREPARE_TO_WAIT_EVENT
+
+#
+# Linux kernel 3.12 introduced struct kernel_param_ops
+# This has been backported to all lustre supported
+# clients except RHEL6. We have to handle the differences.
+#
+AC_DEFUN([LIBCFS_KERNEL_PARAM_OPS],[
+LB_CHECK_COMPILE([does 'struct kernel_param_ops' exist],
+kernel_param_ops, [
+ #include <linux/module.h>
+],[
+ struct kernel_param_ops ops;
+
+ ops.set = NULL;
+],[
+ AC_DEFINE(HAVE_KERNEL_PARAM_OPS, 1,
+ ['struct kernel_param_ops' is available])
])
+]) # LIBCFS_KERNEL_PARAM_OPS
+#
+# Kernel version 3.12 introduced ktime_add
+#
+AC_DEFUN([LIBCFS_KTIME_ADD],[
+LB_CHECK_COMPILE([does function 'ktime_add' exist],
+ktime_add, [
+ #include <linux/hrtimer.h>
+ #include <linux/ktime.h>
+],[
+ ktime_t start = ktime_set(0, 0);
+ ktime_t end = start;
+ ktime_t total;
-# 2.6.24 request not use real numbers for ctl_name
-AC_DEFUN([LIBCFS_SYSCTL_UNNUMBERED],
-[AC_MSG_CHECKING([for CTL_UNNUMBERED])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sysctl.h>
+ total = ktime_add(start, end);
],[
- #ifndef CTL_UNNUMBERED
- #error CTL_UNNUMBERED not exist in kernel
- #endif
+ AC_DEFINE(HAVE_KTIME_ADD, 1,
+ [ktime_add is available])
+])
+]) # LIBCFS_KTIME_ADD
+
+#
+# Kernel version 3.12 introduced ktime_after
+#
+AC_DEFUN([LIBCFS_KTIME_AFTER],[
+LB_CHECK_COMPILE([does function 'ktime_after' exist],
+ktime_after, [
+ #include <linux/hrtimer.h>
+ #include <linux/ktime.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SYSCTL_UNNUMBERED, 1,
- [sysctl has CTL_UNNUMBERED])
+ ktime_t start = ktime_set(0, 0);
+ ktime_t end = start;
+
+ ktime_after(start, end);
],[
- AC_MSG_RESULT(NO)
+ AC_DEFINE(HAVE_KTIME_AFTER, 1,
+ [ktime_after is available])
])
+]) # LIBCFS_KTIME_AFTER
+
+#
+# Kernel version 3.12 introduced ktime_before
+# See linux commit 67cb9366ff5f99868100198efba5ca88aaa6ad25
+#
+AC_DEFUN([LIBCFS_KTIME_BEFORE],[
+LB_CHECK_COMPILE([does function 'ktime_before' exist],
+ktime_before, [
+ #include <linux/hrtimer.h>
+ #include <linux/ktime.h>
+],[
+ ktime_t start = ktime_set(0, 0);
+ ktime_t end = start;
+
+ ktime_before(start, end);
+],[
+ AC_DEFINE(HAVE_KTIME_BEFORE, 1,
+ [ktime_before is available])
])
+]) # LIBCFS_KTIME_BEFORE
#
-# LIBCFS_FUNC_DUMP_TRACE
+# Kernel version 3.12 introduced ktime_compare
#
-# 2.6.23 exports dump_trace() so we can dump_stack() on any task
-# 2.6.24 has stacktrace_ops.address with "reliable" parameter
+AC_DEFUN([LIBCFS_KTIME_COMPARE],[
+LB_CHECK_COMPILE([does function 'ktime_compare' exist],
+ktime_compare, [
+ #include <linux/hrtimer.h>
+ #include <linux/ktime.h>
+],[
+ ktime_t start = ktime_set(0, 0);
+ ktime_t end = start;
+
+ ktime_compare(start, end);
+],[
+ AC_DEFINE(HAVE_KTIME_COMPARE, 1,
+ [ktime_compare is available])
+])
+]) # LIBCFS_KTIME_COMPARE
+
#
-AC_DEFUN([LIBCFS_FUNC_DUMP_TRACE],
-[LB_CHECK_SYMBOL_EXPORT([dump_trace],
-[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])
- LB_LINUX_TRY_COMPILE([
- struct task_struct;
- struct pt_regs;
- #include <asm/stacktrace.h>
- ],[
- ],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_DUMP_TRACE, 1, [dump_trace is exported])
- ],[
- AC_MSG_RESULT(no)
- ],[
- ])
- AC_MSG_CHECKING([whether print_trace_address has reliable argument])
- LB_LINUX_TRY_COMPILE([
- struct task_struct;
- struct pt_regs;
- #include <asm/stacktrace.h>
- ],[
- ((struct stacktrace_ops *)0)->address(NULL, 0, 0);
- ],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_TRACE_ADDRESS_RELIABLE, 1,
- [print_trace_address has reliable argument])
- ],[
- AC_MSG_RESULT(no)
- ],[
- ])
- AC_MSG_CHECKING([whether stacktrace_ops.warning is exist])
- LB_LINUX_TRY_COMPILE([
- struct task_struct;
- struct pt_regs;
- #include <asm/stacktrace.h>
- ],[
- ((struct stacktrace_ops *)0)->warning(NULL, NULL);
- ],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, [stacktrace_ops.warning is exist])
- ],[
- AC_MSG_RESULT(no)
- ],[
- ])
- AC_MSG_CHECKING([dump_trace want address])
- LB_LINUX_TRY_COMPILE([
- struct task_struct;
- struct pt_regs;
- #include <asm/stacktrace.h>
- ],[
- dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
- ],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
- [dump_trace want address argument])
- ],[
- AC_MSG_RESULT(no)
- ],[
- ])
+# FC19 3.12 kernel struct shrinker change
+#
+AC_DEFUN([LIBCFS_SHRINKER_COUNT],[
+LB_CHECK_COMPILE([shrinker has 'count_objects'],
+shrinker_count_objects, [
+ #include <linux/mmzone.h>
+ #include <linux/shrinker.h>
+],[
+ struct shrinker shrinker;
+ shrinker.count_objects = NULL;
+],[
+ AC_DEFINE(HAVE_SHRINKER_COUNT, 1,
+ [shrinker has count_objects member])
+])
+]) # LIBCFS_SHRINKER_COUNT
+
+#
+# LIBCFS_IOV_ITER_HAS_TYPE
+#
+# kernel 3.15-rc4 commit 71d8e532b1549a478e6a6a8a44f309d050294d00
+# start adding the tag to iov_iter
+#
+AC_DEFUN([LIBCFS_IOV_ITER_HAS_TYPE], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if iov_iter has member type],
+iov_iter_has_type_member, [
+ #include <linux/uio.h>
+],[
+ struct iov_iter iter = { .type = ITER_KVEC };
+ (void)iter;
+],[
+ AC_DEFINE(HAVE_IOV_ITER_HAS_TYPE_MEMBER, 1,
+ [if iov_iter has member type])
+])
EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_IOV_ITER_HAS_TYPE
+
+#
+# Kernel version 3.17 changed hlist_add_after to
+# hlist_add_behind
+#
+AC_DEFUN([LIBCFS_HLIST_ADD_AFTER],[
+LB_CHECK_COMPILE([does function 'hlist_add_after' exist],
+hlist_add_after, [
+ #include <linux/list.h>
+],[
+ hlist_add_after(NULL, NULL);
+],[
+ AC_DEFINE(HAVE_HLIST_ADD_AFTER, 1,
+ [hlist_add_after is available])
])
+]) # LIBCFS_HLIST_ADD_AFTER
+
+#
+# Kernel version 3.17 introduced struct timespec64
+#
+AC_DEFUN([LIBCFS_TIMESPEC64],[
+LB_CHECK_COMPILE([does 'struct timespec64' exist],
+timespec64, [
+ #include <linux/time.h>
+],[
+ struct timespec64 ts;
+
+ ts.tv_sec = 0;
+ ts.tv_nsec = 0;
+],[
+ AC_DEFINE(HAVE_TIMESPEC64, 1,
+ ['struct timespec64' is available])
])
+]) # LIBCFS_TIMESPEC64
+#
+# Kernel version 3.17 introduced ktime_get_real_ts64
+#
+AC_DEFUN([LIBCFS_KTIME_GET_REAL_TS64],[
+LB_CHECK_COMPILE([does function 'ktime_get_real_ts64' exist],
+ktime_get_real_ts64, [
+ #include <linux/ktime.h>
+],[
+ struct timespec64 *ts = NULL;
-# 2.6.27 have second argument to sock_map_fd
-AC_DEFUN([LIBCFS_SOCK_MAP_FD_2ARG],
-[AC_MSG_CHECKING([sock_map_fd have second argument])
-LB_LINUX_TRY_COMPILE([
- #include <linux/net.h>
+ ktime_get_real_ts64(ts);
],[
- sock_map_fd(NULL, 0);
+ AC_DEFINE(HAVE_KTIME_GET_REAL_TS64, 1,
+ ['ktime_get_real_ts64' is available])
+])
+]) # LIBCFS_KTIME_GET_REAL_TS64
+
+#
+# Kernel version 3.17 introduced ktime_get_real_seconds
+#
+AC_DEFUN([LIBCFS_KTIME_GET_REAL_SECONDS],[
+LB_CHECK_COMPILE([does function 'ktime_get_real_seconds' exist],
+ktime_get_real_seconds, [
+ #include <linux/hrtimer.h>
+ #include <linux/ktime.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SOCK_MAP_FD_2ARG, 1,
- [sock_map_fd have second argument])
+ time64_t now;
+
+ now = ktime_get_real_seconds();
],[
- AC_MSG_RESULT(NO)
+ AC_DEFINE(HAVE_KTIME_GET_REAL_SECONDS, 1,
+ ['ktime_get_real_seconds' is available])
])
+]) # LIBCFS_KTIME_GET_REAL_SECONDS
+
+#
+# Kernel version 3.17 created ktime_get_ns wrapper
+#
+AC_DEFUN([LIBCFS_KTIME_GET_NS],[
+LB_CHECK_COMPILE([does function 'ktime_get_ns' exist],
+ktime_get_ns, [
+ #include <linux/hrtimer.h>
+ #include <linux/ktime.h>
+],[
+ u64 nanoseconds;
+
+ nanoseconds = ktime_get_ns();
+],[],[
+ AC_DEFINE(NEED_KTIME_GET_NS, 1,
+ ['ktime_get_ns' is not available])
])
+]) # LIBCFS_KTIME_GET_NS
#
-# LIBCFS_HAVE_IS_COMPAT_TASK
+# Kernel version 3.17 created ktime_get_real_ns wrapper
#
-# Added in 2.6.17, it wasn't until 2.6.29 that all
-# Linux architectures have is_compat_task()
+AC_DEFUN([LIBCFS_KTIME_GET_REAL_NS],[
+LB_CHECK_COMPILE([does function 'ktime_get_real_ns' exist],
+ktime_get_real_ns, [
+ #include <linux/hrtimer.h>
+ #include <linux/ktime.h>
+],[
+ u64 nanoseconds;
+
+ nanoseconds = ktime_get_real_ns();
+],[],[
+ AC_DEFINE(NEED_KTIME_GET_REAL_NS, 1,
+ ['ktime_get_real_ns' is not available])
+])
+]) # LIBCFS_KTIME_GET_REAL_NS
+
+#
+# Kernel version 3.17 introduced ktime_to_timespec64
#
-AC_DEFUN([LIBCFS_HAVE_IS_COMPAT_TASK],
-[AC_MSG_CHECKING([if is_compat_task() is declared])
-LB_LINUX_TRY_COMPILE([
- #include <linux/compat.h>
+AC_DEFUN([LIBCFS_KTIME_TO_TIMESPEC64],[
+LB_CHECK_COMPILE([does function 'ktime_to_timespec64' exist],
+ktime_to_timespec64, [
+ #include <linux/hrtimer.h>
+ #include <linux/ktime.h>
+],[
+ ktime_t now = ktime_set(0, 0);
+ struct timespec64 ts;
+
+ ts = ktime_to_timespec64(now);
],[
- int i __attribute__ ((unused));
- i = is_compat_task();
+ AC_DEFINE(HAVE_KTIME_TO_TIMESPEC64, 1,
+ ['ktime_to_timespec64' is available])
+])
+]) # LIBCFS_KTIME_TO_TIMESPEC64
+
+#
+# Kernel version 3.17 introduced timespec64_sub
+#
+AC_DEFUN([LIBCFS_TIMESPEC64_SUB],[
+LB_CHECK_COMPILE([does function 'timespec64_sub' exist],
+timespec64_sub, [
+ #include <linux/time.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_IS_COMPAT_TASK, 1, [is_compat_task() is available])
+ struct timespec64 later = { }, earlier = { }, diff;
+
+ diff = timespec64_sub(later, earlier);
],[
- AC_MSG_RESULT([no])
+ AC_DEFINE(HAVE_TIMESPEC64_SUB, 1,
+ ['timespec64_sub' is available])
])
+]) # LIBCFS_TIMESPEC64_SUB
+
+#
+# Kernel version 3.17 introduced timespec64_to_ktime
+#
+AC_DEFUN([LIBCFS_TIMESPEC64_TO_KTIME],[
+LB_CHECK_COMPILE([does function 'timespec64_to_ktime' exist],
+timespec64_to_ktime, [
+ #include <linux/ktime.h>
+],[
+ struct timespec64 ts;
+ ktime_t now;
+
+ now = timespec64_to_ktime(ts);
+],[
+ AC_DEFINE(HAVE_TIMESPEC64_TO_KTIME, 1,
+ ['timespec64_to_ktime' is available])
])
+]) # LIBCFS_TIMESPEC64_TO_KTIME
#
-# LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
+# Kernel version 3.19 introduced ktime_get_seconds
#
-# 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
+AC_DEFUN([LIBCFS_KTIME_GET_SECONDS],[
+LB_CHECK_COMPILE([does function 'ktime_get_seconds' exist],
+ktime_get_seconds, [
+ #include <linux/ktime.h>
+],[
+ time64_t now;
+
+ now = ktime_get_seconds();
+],[
+ AC_DEFINE(HAVE_KTIME_GET_SECONDS, 1,
+ ['ktime_get_seconds' is available])
+])
+]) # LIBCFS_KTIME_GET_SECONDS
+
+#
+# Kernel version 4.0 commit 41fbf3b39d5eca01527338b4d0ee15ee1ae1023c
+# introduced the helper function ktime_ms_delta.
#
-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>
+AC_DEFUN([LIBCFS_KTIME_MS_DELTA],[
+LB_CHECK_COMPILE([does function 'ktime_ms_delta' exist],
+ktime_ms_delta, [
+ #include <linux/ktime.h>
],[
- ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
+ ktime_t start = ktime_set(0, 0);
+ ktime_t end = start;
+
+ ktime_ms_delta(start, end);
+],[
+ AC_DEFINE(HAVE_KTIME_MS_DELTA, 1,
+ ['ktime_ms_delta' is available])
+])
+]) # LIBCFS_KTIME_MS_DELTA
+
+#
+# Kernel version 4.1 commit b51d23e4e9fea6f264d39535c2a62d1f51e7ccc3
+# create per module locks which added kernel_param_[un]lock(). Older
+# kernels you have to use __kernel_param_[un]lock(). In that case its
+# a global lock for all modules but that is okay since its a rare event.
+#
+AC_DEFUN([LIBCFS_KERNEL_PARAM_LOCK],[
+LB_CHECK_COMPILE([does function 'kernel_param_[un]lock' exist],
+kernel_param_lock, [
+ #include <linux/moduleparam.h>
],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field])
+ kernel_param_lock(NULL);
+ kernel_param_unlock(NULL);
],[
- AC_MSG_RESULT([no])
+ AC_DEFINE(HAVE_KERNEL_PARAM_LOCK, 1,
+ ['kernel_param_[un]lock' is available])
])
+]) # LIBCFS_KERNEL_PARAM_LOCK
+
+#
+# Kernel version 4.2 changed topology_thread_cpumask
+# to topology_sibling_cpumask
+#
+AC_DEFUN([LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK],[
+LB_CHECK_COMPILE([does function 'topology_sibling_cpumask' exist],
+topology_sibling_cpumask, [
+ #include <linux/topology.h>
+],[
+ const struct cpumask *mask;
+
+ mask = topology_sibling_cpumask(0);
+],[
+ AC_DEFINE(HAVE_TOPOLOGY_SIBLING_CPUMASK, 1,
+ [topology_sibling_cpumask is available])
])
+]) # LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
-AC_DEFUN([LIBCFS_HAVE_KEYTYPE_H],
-[LB_CHECK_FILE([$LINUX/include/linux/key-type.h], [
- AC_DEFINE(HAVE_LINUX_KEYTYPE_H, 1,
- [kernel has include/key-type.h])
+#
+# Kernel version 4.2 commit df6b35f409af0a8ff1ef62f552b8402f3fef8665
+# header file i387.h was renamed to fpu/api.h
+#
+AC_DEFUN([LIBCFS_FPU_API], [
+LB_CHECK_LINUX_HEADER([asm/fpu/api.h], [
+ AC_DEFINE(HAVE_FPU_API_HEADER, 1,
+ [fpu/api.h is present])])
+]) # LIBCFS_FPU_API
+
+#
+# Kernel version 4.4 commit ef951599074ba4fad2d0efa0a977129b41e6d203
+# introduced kstrtobool and kstrtobool_from_user.
+#
+AC_DEFUN([LIBCFS_KSTRTOBOOL_FROM_USER], [
+LB_CHECK_COMPILE([if Linux kernel has 'kstrtobool_from_user'],
+kstrtobool_from_user, [
+ #include <linux/kernel.h>
+],[
+ bool result;
+ return kstrtobool_from_user(NULL, 0, &result);
],[
- AC_MSG_RESULT([no])
+ AC_DEFINE(HAVE_KSTRTOBOOL_FROM_USER, 1,
+ [kernel has kstrtobool_from_user])
])
+]) # LIBCFS_KSTRTOBOOL_FROM_USER
+
+#
+# Kernel version 4.5-rc1 commit d12481bc58fba89427565f8592e88446ec084a24
+# added crypto hash helpers
+#
+AC_DEFUN([LIBCFS_CRYPTO_HASH_HELPERS], [
+LB_CHECK_COMPILE([does crypto hash helper functions exist],
+crypto_hash_helpers, [
+ #include <crypto/hash.h>
+],[
+ crypto_ahash_alg_name(NULL);
+ crypto_ahash_driver_name(NULL);
+],[
+ AC_DEFINE(HAVE_CRYPTO_HASH_HELPERS, 1,
+ [crypto hash helper functions are available])
])
+]) # LIBCFS_CRYPTO_HASH_HELPERS
#
-# RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
+# Kernel version 4.5-rc1 commit 3502cad73c4bbf8f6365d539e814159275252c59
+# introduced rhashtable_replace_fast
#
-AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
-[AC_MSG_CHECKING([shrinker want self pointer in handler])
-LB_LINUX_TRY_COMPILE([
- #include <linux/mm.h>
+AC_DEFUN([LIBCFS_RHASHTABLE_REPLACE], [
+LB_CHECK_COMPILE([if 'rhashtable_replace_fast' exists],
+rhashtable_replace_fast, [
+ #include <linux/rhashtable.h>
],[
- struct shrinker *tmp = NULL;
- tmp->shrink(tmp, 0, 0);
+ const struct rhashtable_params params = { 0 };
+
+ rhashtable_replace_fast(NULL, NULL, NULL, params);
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
- [shrinker want self pointer in handler])
+ AC_DEFINE(HAVE_RHASHTABLE_REPLACE, 1,
+ [rhashtable_replace_fast() is available])
+])
+]) # LIBCFS_RHASHTABLE_REPLACE
+
+#
+# Kernel version 4.5-rc3 commit 2fe829aca9d7bed5fd6b49c6a1452e5e486b6cc3dd
+# made kset_find_obj() exportable to modules
+#
+AC_DEFUN([LIBCFS_EXPORT_KSET_FIND_OBJ], [
+LB_CHECK_EXPORT([kset_find_obj], [lib/kobject.c],
+ [AC_DEFINE(HAVE_KSET_FIND_OBJ, 1,
+ [kset_find_obj is exported by the kernel])])
+]) # LIBCFS_EXPORT_KSET_FIND_OBJ
+
+#
+# Kernel version 4.6+ commit ef703f49a6c5b909a85149bb6625c4ed0d697186
+# fixed the brokenness of hash_64(). The fix removed GOLDEN_RATIO_PRIME_64
+# since it was a poor prime value.
+#
+AC_DEFUN([LIBCFS_BROKEN_HASH_64], [
+LB_CHECK_COMPILE([kernel has fixed hash_64()],
+broken_hash_64, [
+ #include <linux/hash.h>
],[
- AC_MSG_RESULT(no)
+ int tmp = GOLDEN_RATIO_PRIME_64;
+],[
+ AC_DEFINE(HAVE_BROKEN_HASH_64, 1, [kernel hash_64() is broken])
])
+]) # LIBCFS_BROKEN_HASH_64
+
+#
+# LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
+#
+# linux 4.6 kernel changed stacktrace_ops address to return an int
+#
+AC_DEFUN([LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT], [
+LB_CHECK_COMPILE([if 'struct stacktrace_ops' address function returns an int],
+stacktrace_ops_address_return_int, [
+ #include <asm/stacktrace.h>
+],[
+ int rc;
+
+ rc = ((struct stacktrace_ops *)0)->address(NULL, 0, 0);
+],[
+ AC_DEFINE(STACKTRACE_OPS_ADDRESS_RETURN_INT, 1,
+ ['struct stacktrace_ops' address function returns an int])
])
+]) # LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
#
-# 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
+# Kernel version 4.6 removed both struct task_struct and struct mm_struct
+# arguments to get_user_pages
#
-AC_DEFUN([LIBCFS_SYSCTL_CTLNAME],
-[AC_MSG_CHECKING([if ctl_table has a ctl_name field])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sysctl.h>
+AC_DEFUN([LIBCFS_GET_USER_PAGES_6ARG], [
+LB_CHECK_COMPILE([if 'get_user_pages()' takes 6 arguments],
+get_user_pages_6arg, [
+ #include <linux/mm.h>
],[
- struct ctl_table ct;
- ct.ctl_name = sizeof(ct);
+ int rc;
+
+ rc = get_user_pages(0, 0, 0, 0, NULL, NULL);
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
- [ctl_table has ctl_name field])
+ AC_DEFINE(HAVE_GET_USER_PAGES_6ARG, 1,
+ [get_user_pages takes 6 arguments])
+])
+]) # LIBCFS_GET_USER_PAGES_6ARG
+
+#
+# LIBCFS_STRINGHASH
+#
+# 4.6 kernel created stringhash.h which moved stuff out of dcache.h
+# commit f4bcbe792b8f434e32487cff9d9e30ab45a3ce02
+#
+AC_DEFUN([LIBCFS_STRINGHASH], [
+LB_CHECK_LINUX_HEADER([linux/stringhash.h], [
+ AC_DEFINE(HAVE_STRINGHASH, 1,
+ [stringhash.h is present])])
+]) # LIBCFS_STRINGHASH
+
+#
+# LIBCFS_RHASHTABLE_INSERT_FAST
+#
+# 4.7+ kernel commit 5ca8cc5bf11faed257c762018aea9106d529232f
+# changed __rhashtable_insert_fast to support the new function
+# rhashtable_lookup_get_insert_key().
+#
+AC_DEFUN([LIBCFS_RHASHTABLE_INSERT_FAST], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if internal '__rhashtable_insert_fast()' returns int],
+rhashtable_insert_fast, [
+ #include <linux/rhashtable.h>
],[
- AC_MSG_RESULT(no)
+ const struct rhashtable_params params = { 0 };
+ int rc;
+
+ rc = __rhashtable_insert_fast(NULL, NULL, NULL, params);
+],[
+ AC_DEFINE(HAVE_HASHTABLE_INSERT_FAST_RETURN_INT, 1,
+ ['__rhashtable_insert_fast()' returns int])
])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_RHASHTABLE_INSERT_FAST
+
+#
+# Kernel version 4.7-rc1 commit 8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697
+# added 3rd arg to rhashtable_walk_init
+#
+AC_DEFUN([LIBCFS_RHASHTABLE_WALK_INIT_3ARG], [
+LB_CHECK_COMPILE([if 'rhashtable_walk_init' has 3 args],
+rhashtable_walk_init, [
+ #include <linux/gfp.h>
+ #include <linux/rhashtable.h>
+],[
+ rhashtable_walk_init(NULL, NULL, GFP_KERNEL);
+],[
+ AC_DEFINE(HAVE_3ARG_RHASHTABLE_WALK_INIT, 1,
+ [rhashtable_walk_init() has 3 args])
])
+]) # LIBCFS_RHASHTABLE_REPLACE
#
-# LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
+# Kernel version 4.8-rc6 commit ca26893f05e86497a86732768ec53cd38c0819ca
+# introduced rhashtable_lookup
+#
+AC_DEFUN([LIBCFS_RHASHTABLE_LOOKUP], [
+LB_CHECK_COMPILE([if 'rhashtable_lookup' exist],
+rhashtable_lookup, [
+ #include <linux/rhashtable.h>
+],[
+ const struct rhashtable_params params = { 0 };
+ void *ret;
+
+ ret = rhashtable_lookup(NULL, NULL, params);
+],[
+ AC_DEFINE(HAVE_RHASHTABLE_LOOKUP, 1,
+ [rhashtable_lookup() is available])
+])
+]) # LIBCFS_RHASHTABLE_LOOKUP
+
#
-# 2.6.34 adds __add_wait_queue_exclusive
+# LIBCFS_RHLTABLE
+# Kernel version 4.8-rc6 commit ca26893f05e86497a86732768ec53cd38c0819ca
+# created the rhlist interface to allow inserting duplicate objects
+# into the same table.
#
-AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE],
-[AC_MSG_CHECKING([if __add_wait_queue_exclusive exists])
-LB_LINUX_TRY_COMPILE([
- #include <linux/wait.h>
+AC_DEFUN([LIBCFS_RHLTABLE], [
+LB_CHECK_COMPILE([does 'struct rhltable' exist],
+rhtable, [
+ #include <linux/rhashtable.h>
],[
- wait_queue_head_t queue;
- wait_queue_t wait;
+ struct rhltable *hlt;
- __add_wait_queue_exclusive(&queue, &wait);
+ rhltable_destroy(hlt);
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
- [__add_wait_queue_exclusive exists])
+ AC_DEFINE(HAVE_RHLTABLE, 1,
+ [struct rhltable exist])
+])
+]) # LIBCFS_RHLTABLE
+
+#
+# LIBCFS_STACKTRACE_OPS
+#
+# Kernel version 4.8 commit c8fe4609827aedc9c4b45de80e7cdc8ccfa8541b
+# removed both struct stacktrace_ops and dump_trace() function
+#
+AC_DEFUN([LIBCFS_STACKTRACE_OPS], [
+LB_CHECK_COMPILE([if 'struct stacktrace_ops' exists],
+stacktrace_ops, [
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
],[
- AC_MSG_RESULT(no)
+ struct stacktrace_ops ops;
+ ops.stack = NULL;
+],[
+ AC_DEFINE(HAVE_STACKTRACE_OPS, 1,
+ [struct stacktrace_ops exists])
])
+]) # LIBCFS_STACKTRACE_OPS
+
+#
+# Kernel version 4.9-rc1 commit 246779dd090bd1b74d2652b3a6ca7759f593b27a
+# introduced rhashtable_walk_enter
+#
+AC_DEFUN([LIBCFS_RHASHTABLE_WALK_ENTER], [
+LB_CHECK_COMPILE([if 'rhashtable_walk_enter' exists],
+rhashtable_walk_enter, [
+ #include <linux/rhashtable.h>
+],[
+ rhashtable_walk_enter(NULL, NULL);
+],[
+ AC_DEFINE(HAVE_RHASHTABLE_WALK_ENTER, 1,
+ [rhashtable_walk_enter() is available])
])
+]) # LIBCFS_RHASHTABLE_REPLACE
#
-# 2.6.35 kernel has sk_sleep function
+# Kernel version 4.9 commit 768ae309a96103ed02eb1e111e838c87854d8b51
+# mm: replace get_user_pages() write/force parameters with gup_flags
#
-AC_DEFUN([LC_SK_SLEEP],
-[AC_MSG_CHECKING([if kernel has sk_sleep])
-LB_LINUX_TRY_COMPILE([
- #include <net/sock.h>
+AC_DEFUN([LIBCFS_GET_USER_PAGES_GUP_FLAGS], [
+LB_CHECK_COMPILE([if 'get_user_pages()' takes gup_flags in arguments],
+get_user_pages_gup_flags, [
+ #include <linux/mm.h>
],[
- sk_sleep(NULL);
+ int rc;
+ rc = get_user_pages(0, 0, FOLL_WRITE, NULL, NULL);
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SK_SLEEP, 1, [kernel has sk_sleep])
+ AC_DEFINE(HAVE_GET_USER_PAGES_GUP_FLAGS, 1,
+ [get_user_pages takes gup_flags in arguments])
+])
+]) # LIBCFS_GET_USER_PAGES_GUP_FLAGS
+
+#
+# Kernel version 4.10 commit 7b737965b33188bd3dbb44e938535c4006d97fbb
+# libcfs: Convert to hotplug state machine
+#
+AC_DEFUN([LIBCFS_HOTPLUG_STATE_MACHINE], [
+LB_CHECK_COMPILE([if libcfs supports CPU hotplug state machine],
+cpu_hotplug_state_machine, [
+ #include <linux/cpuhotplug.h>
],[
- AC_MSG_RESULT(no)
+ cpuhp_remove_state(CPUHP_LUSTRE_CFS_DEAD);
+],[
+ AC_DEFINE(HAVE_HOTPLUG_STATE_MACHINE, 1,
+ [hotplug state machine is supported])
])
+]) # LIBCFS_HOTPLUG_STATE_MACHINE
+
+#
+# LIBCFS_SCHED_HEADERS
+#
+# 4.11 has broken up sched.h into more headers.
+#
+AC_DEFUN([LIBCFS_SCHED_HEADERS], [
+LB_CHECK_LINUX_HEADER([linux/sched/signal.h], [
+ AC_DEFINE(HAVE_SCHED_HEADERS, 1,
+ [linux/sched header directory exist])])
+]) # LIBCFS_SCHED_HEADERS
+
+#
+# Kernel version 4.11-rc1 commit da20420f83ea0fbcf3d03afda08d971ea1d8a356
+# introduced rht_bucket_var
+#
+AC_DEFUN([LIBCFS_RHT_BUCKET_VAR], [
+LB_CHECK_COMPILE([if 'rht_bucket_var' exists],
+rht_bucket_var, [
+ #include <linux/rhashtable.h>
+],[
+
+ rht_bucket_var(NULL, 0);
+],[
+ AC_DEFINE(HAVE_RHT_BUCKET_VAR, 1,
+ [rht_bucket_var() is available])
])
+]) # LIBCFS_RHT_BUCKET_VAR
#
-# FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
-# pressure shrinker from Linux 3.0
+# Kernel version 4.11 commit f9fe1c12d126f9887441fa5bb165046f30ddd4b5
+# introduced rhashtable_lookup_get_insert_fast
#
-AC_DEFUN([LC_SHRINK_CONTROL],
-[AC_MSG_CHECKING([shrink_control is present])
-LB_LINUX_TRY_COMPILE([
- #include <linux/mm.h>
+AC_DEFUN([LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST], [
+LB_CHECK_COMPILE([if 'rhashtable_lookup_get_insert_fast' exist],
+rhashtable_lookup_get_insert_fast, [
+ #include <linux/rhashtable.h>
],[
- struct shrink_control tmp = {0};
- tmp.nr_to_scan = sizeof(tmp);
+ const struct rhashtable_params params = { 0 };
+ void *ret;
+
+ ret = rhashtable_lookup_get_insert_fast(NULL, NULL, params);
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
- [shrink_control is present])
+ AC_DEFINE(HAVE_RHASHTABLE_LOOKUP_GET_INSERT_FAST, 1,
+ [rhashtable_lookup_get_insert_fast() is available])
+])
+]) # LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST
+
+#
+# Kernel version 4.12-rc3 f9727a17db9bab71ddae91f74f11a8a2f9a0ece6
+# renamed uuid_be to uuid_t
+#
+AC_DEFUN([LIBCFS_UUID_T], [
+LB_CHECK_COMPILE([if 'uuid_t' exist],
+uuid_t, [
+ #include <linux/uuid.h>
],[
- AC_MSG_RESULT(no)
+ uuid_t uuid;
+
+ memset(uuid.b, 0, 16);
+],[
+ AC_DEFINE(HAVE_UUID_T, 1, ['uuid_t' exist])
+])
+]) # LIBCFS_UUID_T
+
+#
+# Kernel version 4.12-rc3 commit fd851a3cdc196bfc1d229b5f22369069af532bf8
+# introduce processor.h
+#
+AC_DEFUN([LIBCFS_HAVE_PROCESSOR_HEADER], [
+LB_CHECK_LINUX_HEADER([linux/processor.h], [
+ AC_DEFINE(HAVE_PROCESSOR_H, 1,
+ [processor.h is present])])
+]) # LIBCFS_HAVE_PROCESSOR_HEADER
+
+#
+# Kernel verison 4.12-rc6 commit 5dd43ce2f69d42a71dcacdb13d17d8c0ac1fe8f7
+# created wait_bit.h
+#
+AC_DEFUN([LIBCFS_HAVE_WAIT_BIT_HEADER], [
+LB_CHECK_LINUX_HEADER([linux/wait_bit.h], [
+ AC_DEFINE(HAVE_WAIT_BIT_HEADER_H, 1,
+ [wait_bit.h is present])])
+]) # LIBCFS_HAVE_WAIT_BIT_HEADER
+
+#
+# Kernel version 4.12-rc6 commmit 2055da97389a605c8a00d163d40903afbe413921
+# changed:
+# struct wait_queue_head::task_list => ::head
+# struct wait_queue_entry::task_list => ::entry
+#
+AC_DEFUN([LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME], [
+LB_CHECK_COMPILE([if linux wait_queue_head list_head is named head],
+wait_queue_task_list, [
+ #include <linux/wait.h>
+],[
+ wait_queue_head_t e;
+
+ INIT_LIST_HEAD(&e.head);
+],[
+ AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY_LIST, 1,
+ [linux wait_queue_head_t list_head is name head])
])
+]) # LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME
+
+#
+# LIBCFS_WAIT_QUEUE_ENTRY
+#
+# Kernel version 4.13 ac6424b981bce1c4bc55675c6ce11bfe1bbfa64f
+# Rename wait_queue_t => wait_queue_entry_t
+#
+AC_DEFUN([LIBCFS_WAIT_QUEUE_ENTRY], [
+LB_CHECK_COMPILE([if 'wait_queue_entry_t' exists],
+wait_queue_entry, [
+ #include <linux/wait.h>
+],[
+ wait_queue_entry_t e;
+
+ e.flags = 0;
+],[
+ AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY, 1,
+ ['wait_queue_entry_t' is available])
])
+]) # LIBCFS_WAIT_QUEUE_ENTRY
#
-# FC18 3.7.2-201 unexport sock_map_fd() change to
-# use sock_alloc_file().
-# upstream commit 56b31d1c9f1e6a3ad92e7bfe252721e05d92b285
+# LIBCFS_NEW_KERNEL_WRITE
#
-AC_DEFUN([LIBCFS_SOCK_ALLOC_FILE],
-[AC_MSG_CHECKING([sock_alloc_file is exported])
-LB_CHECK_SYMBOL_EXPORT([sock_alloc_file], [net/socket.c],[
- LB_LINUX_TRY_COMPILE([
- #include <linux/net.h>
- ],[
- sock_alloc_file(NULL, 0, NULL);
- ],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SOCK_ALLOC_FILE_3ARGS, 1,
- [sock_alloc_file takes 3 arguments])
+# Kernel version 4.14 e13ec939e96b13e664bb6cee361cc976a0ee621a
+# changed kernel_write prototype to make is plug compatible
+# with the unexported vfs_write()
+#
+AC_DEFUN([LIBCFS_NEW_KERNEL_WRITE], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if 'kernel_write' matches other read/write helpers],
+kernel_write_match, [
+ #include <linux/fs.h>
+],[
+ const void *buf = NULL;
+ loff_t pos = 0;
+ return kernel_write(NULL, buf, 0, &pos);
+],[
+ AC_DEFINE(HAVE_NEW_KERNEL_WRITE, 1,
+ ['kernel_write' aligns with read/write helpers])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_NEW_KERNEL_WRITE
+
+#
+# LIBCFS_MM_TOTALRAM_PAGES_FUNC
+#
+# kernel 5.0 commit ca79b0c211af63fa3276f0e3fd7dd9ada2439839
+# mm: convert totalram_pages and totalhigh_pages variables to atomic
+#
+AC_DEFUN([LIBCFS_MM_TOTALRAM_PAGES_FUNC], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if totalram_pages is a function],
+totalram_pages, [
+ #include <linux/mm.h>
+],[
+ totalram_pages_inc();
+],[
+ AC_DEFINE(HAVE_TOTALRAM_PAGES_AS_FUNC, 1,
+ [if totalram_pages is a function])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_MM_TOTALRAM_PAGES_FUNC
+
+#
+# LIBCFS_NEW_KERNEL_WRITE
+#
+# 4.14 commit bdd1d2d3d251c65b74ac4493e08db18971c09240 changed
+# the signature of kernel_read to match other read/write helpers
+# and place offset last.
+#
+AC_DEFUN([LIBCFS_NEW_KERNEL_READ], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if 'kernel_read()' has loff_t *pos as last parameter],
+kernel_read, [
+ #include <linux/fs.h>
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SOCK_ALLOC_FILE, 1,
- [sock_alloc_file is exported])
- ])
+ loff_t pos = 0;
+ kernel_read(NULL, NULL, 0, &pos);
+],[
+ AC_DEFINE(HAVE_KERNEL_READ_LAST_POSP, 1,
+ [kernel_read() signature ends with loff_t *pos])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_NEW_KERNEL_READ
+
+#
+# LIBCFS_DEFINE_TIMER
+#
+# Kernel version 4.14 commit 1d27e3e2252ba9d949ca82fbdb73cde102cb2067
+# remove expires and data arguments from DEFINE_TIMER. Also the callback
+# when from using unsigned long argument to using struct timer_list pointer.
+#
+AC_DEFUN([LIBCFS_DEFINE_TIMER], [
+LB_CHECK_COMPILE([if DEFINE_TIMER takes only 2 arguments],
+define_timer, [
+ #include <linux/timer.h>
+],[
+ static DEFINE_TIMER(my_timer, NULL);
],[
+ AC_DEFINE(HAVE_NEW_DEFINE_TIMER, 1,
+ [DEFINE_TIMER uses only 2 arguements])
])
+]) # LIBCFS_DEFINE_TIMER
+
+#
+# LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
+#
+# Kernel 2.6.27 commit 8594698ebddeef5443b7da8258ae33b3eaca61d5
+# exported save_stack_trace_tsk for x86.
+# Kernel 2.6.27 commit 01f4b8b8b8db09b88be7df7e51192e4e678b69d3
+# exported save_stack_trace_tsk for powerpc
+# Kernel 4.13 commit e27c7fa015d61c8be6a2c32b2144aad2ae6ec975
+# exported save_stack_trace_tsk for arm64
+# Kernel 4.14 commit 9a3dc3186fc3795e076a4122da9e0258651a9631
+# exported save_stack_trace_tsk for arm
+#
+AC_DEFUN([LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK], [
+LB_CHECK_EXPORT([save_stack_trace_tsk], [arch/$SUBARCH/kernel/stacktrace.c],
+ [AC_DEFINE(HAVE_SAVE_STACK_TRACE_TSK, 1,
+ [save_stack_trace_tsk is exported])])
+]) # LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
+
+#
+# LIBCFS_TIMER_SETUP
+#
+# Kernel version 4.15 commit e99e88a9d2b067465adaa9c111ada99a041bef9a
+# setup_timer() was replaced by timer_setup(), where the callback
+# argument is the structure already holding the struct timer_list.
+#
+AC_DEFUN([LIBCFS_TIMER_SETUP], [
+LB_CHECK_COMPILE([if setup_timer has been replaced with timer_setup],
+timer_setup, [
+ #include <linux/timer.h>
+],[
+ timer_setup(NULL, NULL, 0);
+],[
+ AC_DEFINE(HAVE_TIMER_SETUP, 1,
+ [timer_setup has replaced setup_timer])
+])
+]) # LIBCFS_TIMER_SETUP
+
+#
+# LIBCFS_WAIT_VAR_EVENT
+#
+# Kernel version 4.16-rc4 commit 6b2bb7265f0b62605e8caee3613449ed0db270b9
+# added wait_var_event()
+#
+AC_DEFUN([LIBCFS_WAIT_VAR_EVENT], [
+LB_CHECK_COMPILE([if 'wait_var_event' exist],
+wait_var_event, [
+ #ifdef HAVE_WAIT_BIT_HEADER_H
+ #include <linux/wait_bit.h>
+ #endif
+ #include <linux/wait.h>
+],[
+ wake_up_var(NULL);
+],[
+ AC_DEFINE(HAVE_WAIT_VAR_EVENT, 1,
+ ['wait_var_event' is available])
+])
+]) # LIBCFS_WAIT_VAR_EVENT
+
+#
+# LIBCFS_CLEAR_AND_WAKE_UP_BIT
+#
+# Kernel version 4.17-rc2 commit 8236b0ae31c837d2b3a2565c5f8d77f637e824cc
+# added clear_and_wake_up_bit()
+#
+AC_DEFUN([LIBCFS_CLEAR_AND_WAKE_UP_BIT], [
+LB_CHECK_COMPILE([if 'clear_and_wake_up_bit' exist],
+clear_and_wake_up_bit, [
+ #ifdef HAVE_WAIT_BIT_HEADER_H
+ #include <linux/wait_bit.h>
+ #endif
+ #include <linux/wait.h>
+],[
+ clear_and_wake_up_bit(0, NULL);
+],[
+ AC_DEFINE(HAVE_CLEAR_AND_WAKE_UP_BIT, 1,
+ ['clear_and_wake_up_bit' is available])
])
+]) # LIBCFS_CLEAR_AND_WAKE_UP_BIT
+
+#
+# LIBCFS_HAVE_IOV_ITER_TYPE
+#
+# kernel 4.20 commit 00e23707442a75b404392cef1405ab4fd498de6b
+# iov_iter: Use accessor functions to access an iterator's type and direction.
+#
+AC_DEFUN([LIBCFS_HAVE_IOV_ITER_TYPE], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if iov_iter_type exists],
+macro_iov_iter_type_exists, [
+ #include <linux/uio.h>
+],[
+ struct iov_iter iter = { .type = ITER_KVEC };
+ enum iter_type type = iov_iter_type(&iter);
+ (void)type;
+],[
+ AC_DEFINE(HAVE_IOV_ITER_TYPE, 1,
+ [if iov_iter_type exists])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_HAVE_IOV_ITER_TYPE
#
# LIBCFS_PROG_LINUX
#
-# LNet linux kernel checks
+# LibCFS linux kernel checks
#
-AC_DEFUN([LIBCFS_PROG_LINUX],
-[
+AC_DEFUN([LIBCFS_PROG_LINUX], [
+AC_MSG_NOTICE([LibCFS kernel checks
+==============================================================================])
LIBCFS_CONFIG_PANIC_DUMPLOG
-LIBCFS_U64_LONG_LONG_LINUX
-# 2.6.18
-LIBCFS_HAVE_IS_COMPAT_TASK
-# 2.6.24
-LIBCFS_SYSCTL_UNNUMBERED
-LIBCFS_FUNC_DUMP_TRACE
-LIBCFS_HAVE_KEYTYPE_H
-# 2.6.28
-LIBCFS_CPUMASK_SIZE
-# 2.6.29
-LIBCFS_CPU_TOPOLOGY
-# 2.6.30
-LIBCFS_SOCK_MAP_FD_2ARG
# 2.6.32
LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
LC_SHRINKER_WANT_SHRINK_PTR
# 2.6.33
LIBCFS_SYSCTL_CTLNAME
-# 2.6.34
-LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
-# 2.6.35
-LC_SK_SLEEP
+# 2.6.36
+LIBCFS_MODULE_LOCKING
+# 2.6.38
+LIBCFS_KSTRTOUL
+# 2.6.39
+LIBCFS_DUMP_TRACE_ADDRESS
# 2.6.40 fc15
LC_SHRINK_CONTROL
-# 3.7
-LIBCFS_SOCK_ALLOC_FILE
-])
-
-#
-# LIBCFS_PROG_DARWIN
-#
-# Darwin checks
-#
-AC_DEFUN([LIBCFS_PROG_DARWIN],
-[LB_DARWIN_CHECK_FUNCS([get_preemption_level])
-])
+# 3.0
+LIBCFS_STACKTRACE_WARNING
+# 3.5
+LIBCFS_PROCESS_NAMESPACE
+LIBCFS_I_UID_READ
+# 3.8
+LIBCFS_HAVE_CRC32
+LIBCFS_ENABLE_CRC32_ACCEL
+# 3.10
+LIBCFS_ENABLE_CRC32C_ACCEL
+# 3.11
+LIBCFS_KTIME_GET_TS64
+# 3.12
+LIBCFS_PREPARE_TO_WAIT_EVENT
+LIBCFS_KERNEL_PARAM_OPS
+LIBCFS_KTIME_ADD
+LIBCFS_KTIME_AFTER
+LIBCFS_KTIME_BEFORE
+LIBCFS_KTIME_COMPARE
+LIBCFS_SHRINKER_COUNT
+# 3.15
+LIBCFS_IOV_ITER_HAS_TYPE
+# 3.17
+LIBCFS_HLIST_ADD_AFTER
+LIBCFS_TIMESPEC64
+LIBCFS_KTIME_GET_NS
+LIBCFS_KTIME_GET_REAL_TS64
+LIBCFS_KTIME_GET_REAL_SECONDS
+LIBCFS_KTIME_GET_REAL_NS
+LIBCFS_KTIME_TO_TIMESPEC64
+LIBCFS_TIMESPEC64_SUB
+LIBCFS_TIMESPEC64_TO_KTIME
+# 3.19
+LIBCFS_KTIME_GET_SECONDS
+# 4.0
+LIBCFS_KTIME_MS_DELTA
+# 4.1
+LIBCFS_KERNEL_PARAM_LOCK
+# 4.2
+LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
+LIBCFS_FPU_API
+# 4.4
+LIBCFS_KSTRTOBOOL_FROM_USER
+# 4.5
+LIBCFS_CRYPTO_HASH_HELPERS
+LIBCFS_EXPORT_KSET_FIND_OBJ
+LIBCFS_RHASHTABLE_REPLACE
+# 4.6
+LIBCFS_BROKEN_HASH_64
+LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
+LIBCFS_GET_USER_PAGES_6ARG
+LIBCFS_STRINGHASH
+# 4.7
+LIBCFS_RHASHTABLE_INSERT_FAST
+LIBCFS_RHASHTABLE_WALK_INIT_3ARG
+# 4.8
+LIBCFS_RHASHTABLE_LOOKUP
+LIBCFS_RHLTABLE
+LIBCFS_STACKTRACE_OPS
+# 4.9
+LIBCFS_GET_USER_PAGES_GUP_FLAGS
+LIBCFS_RHASHTABLE_WALK_ENTER
+# 4.10
+LIBCFS_HOTPLUG_STATE_MACHINE
+# 4.11
+LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST
+LIBCFS_SCHED_HEADERS
+LIBCFS_RHT_BUCKET_VAR
+# 4.12
+LIBCFS_HAVE_PROCESSOR_HEADER
+LIBCFS_HAVE_WAIT_BIT_HEADER
+LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME
+LIBCFS_UUID_T
+# 4.13
+LIBCFS_WAIT_QUEUE_ENTRY
+# 4.14
+LIBCFS_DEFINE_TIMER
+LIBCFS_NEW_KERNEL_WRITE
+LIBCFS_NEW_KERNEL_READ
+LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
+# 4.15
+LIBCFS_TIMER_SETUP
+# 4.16
+LIBCFS_WAIT_VAR_EVENT
+# 4.17
+LIBCFS_CLEAR_AND_WAKE_UP_BIT
+# 4.20
+LIBCFS_HAVE_IOV_ITER_TYPE
+# 5.0
+LIBCFS_MM_TOTALRAM_PAGES_FUNC
+]) # LIBCFS_PROG_LINUX
#
# LIBCFS_PATH_DEFAULTS
#
# default paths for installed files
#
-AC_DEFUN([LIBCFS_PATH_DEFAULTS],
-[
-])
+AC_DEFUN([LIBCFS_PATH_DEFAULTS], [
+]) # LIBCFS_PATH_DEFAULTS
#
# LIBCFS_CONFIGURE
#
# other configure checks
#
-AC_DEFUN([LIBCFS_CONFIGURE],
-[# lnet/utils/portals.c
-AC_CHECK_HEADERS([asm/types.h endian.h sys/ioctl.h])
-
-# lnet/utils/debug.c
-AC_CHECK_HEADERS([linux/version.h])
-
-AC_CHECK_TYPE([spinlock_t],
- [AC_DEFINE(HAVE_SPINLOCK_T, 1, [spinlock_t is defined])],
- [],
- [#include <linux/spinlock.h>])
-
-# lnet/utils/wirecheck.c
-AC_CHECK_FUNCS([strnlen])
-
-# lnet/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
-AC_CHECK_FUNCS([strlcpy])
-
-# libcfs/libcfs/user-prim.c, missing for RHEL5 and earlier userspace
-AC_CHECK_FUNCS([strlcat])
-
-AC_CHECK_TYPE([umode_t],
- [AC_DEFINE(HAVE_UMODE_T, 1, [umode_t is defined])],
- [],
- [#include <asm/types.h>])
-
-AC_CHECK_TYPE([__s8],
- [AC_DEFINE(HAVE___S8, 1, [__s8 is defined])],
- [],
- [#include <asm/types.h>])
-
-AC_CHECK_TYPE([__u8],
- [AC_DEFINE(HAVE___U8, 1, [__u8 is defined])],
- [],
- [#include <asm/types.h>])
-
-AC_CHECK_TYPE([__s16],
- [AC_DEFINE(HAVE___S16, 1, [__s16 is defined])],
- [],
- [#include <asm/types.h>])
-
-AC_CHECK_TYPE([__u16],
- [AC_DEFINE(HAVE___U16, 1, [__u16 is defined])],
- [],
- [#include <asm/types.h>])
-
-AC_CHECK_TYPE([__s32],
- [AC_DEFINE(HAVE___S32, 1, [__s32 is defined])],
- [],
- [#include <asm/types.h>])
-
-AC_CHECK_TYPE([__u32],
- [AC_DEFINE(HAVE___U32, 1, [__u32 is defined])],
- [],
- [#include <asm/types.h>])
-
-AC_CHECK_TYPE([__u64],
- [AC_DEFINE(HAVE___U64, 1, [__u64 is defined])],
- [],
- [#include <asm/types.h>])
-
-AC_CHECK_TYPE([__s64],
- [AC_DEFINE(HAVE___S64, 1, [__s64 is defined])],
- [],
- [#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;
- data2 = data1;
- return 0;
- }
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1,
- [__u64 is long long type])
-],[
- AC_MSG_RESULT([no])
-])
-CFLAGS="$tmp_flags"
+AC_DEFUN([LIBCFS_CONFIGURE], [
+AC_MSG_NOTICE([LibCFS core checks
+==============================================================================])
+
+# libcfs/libcfs/util/nidstrings.c
+AC_CHECK_HEADERS([netdb.h asm/types.h endian.h])
+AC_CHECK_FUNCS([gethostbyname])
# -------- Check for required packages --------------
+AC_MSG_NOTICE([LibCFS required packages checks
+==============================================================================])
-AC_MSG_CHECKING([if efence debugging support is requested])
-AC_ARG_ENABLE(efence,
- AC_HELP_STRING([--enable-efence],
- [use efence library]),
- [],[enable_efence='no'])
-AC_MSG_RESULT([$enable_efence])
-if test "$enable_efence" = "yes" ; then
- LIBEFENCE="-lefence"
- AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
-else
- LIBEFENCE=""
-fi
-AC_SUBST(LIBEFENCE)
+AC_MSG_CHECKING([whether to enable readline support])
+AC_ARG_ENABLE(readline,
+ AC_HELP_STRING([--disable-readline],
+ [disable readline support]),
+ [], [enable_readline="yes"])
+AC_MSG_RESULT([$enable_readline])
+LIBREADLINE=""
+AS_IF([test "x$enable_readline" = xyes], [
+ AC_CHECK_LIB([readline], [readline], [
+ LIBREADLINE="-lreadline"
+ AC_DEFINE(HAVE_LIBREADLINE, 1,
+ [readline library is available])
+ ])
+])
+AC_SUBST(LIBREADLINE)
-# -------- check for -lpthread support ----
AC_MSG_CHECKING([whether to use libpthread for libcfs library])
AC_ARG_ENABLE([libpthread],
- AC_HELP_STRING([--disable-libpthread],
- [disable libpthread]),
- [],[enable_libpthread=yes])
-if test "$enable_libpthread" = "yes" ; then
- AC_CHECK_LIB([pthread], [pthread_create],
- [ENABLE_LIBPTHREAD="yes"],
- [ENABLE_LIBPTHREAD="no"])
- if test "$ENABLE_LIBPTHREAD" = "yes" ; then
- AC_MSG_RESULT([$ENABLE_LIBPTHREAD])
- PTHREAD_LIBS="-lpthread"
- AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
- else
- PTHREAD_LIBS=""
- AC_MSG_RESULT([no libpthread is found])
- fi
- AC_SUBST(PTHREAD_LIBS)
-else
- AC_MSG_RESULT([no (disabled explicitly)])
- ENABLE_LIBPTHREAD="no"
-fi
-AC_SUBST(ENABLE_LIBPTHREAD)
-
+ AC_HELP_STRING([--disable-libpthread],
+ [disable libpthread]),
+ [], [enable_libpthread="yes"])
+AC_MSG_RESULT([$enable_libpthread])
+PTHREAD_LIBS=""
+AS_IF([test "x$enable_libpthread" = xyes], [
+ AC_CHECK_LIB([pthread], [pthread_create], [
+ PTHREAD_LIBS="-lpthread"
+ AC_DEFINE([HAVE_LIBPTHREAD], 1,
+ [use libpthread for libcfs library])
+ ])
+], [
+ AC_MSG_WARN([Using libpthread for libcfs library is disabled explicitly])
])
+AC_SUBST(PTHREAD_LIBS)
+]) # LIBCFS_CONFIGURE
#
# LIBCFS_CONDITIONALS
#
-# AM_CONDITOINAL defines for lnet
-#
-AC_DEFUN([LIBCFS_CONDITIONALS],
-[
-])
+AC_DEFUN([LIBCFS_CONDITIONALS], [
+AM_CONDITIONAL(HAVE_CRC32, [test "x$have_crc32" = xyes])
+AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32, [test "x$have_crc32" = xyes -a "x$enable_crc32_crypto" = xyes])
+AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32C, [test "x$enable_crc32c_crypto" = xyes])
+]) # LIBCFS_CONDITIONALS
#
# LIBCFS_CONFIG_FILES
#
# files that should be generated with AC_OUTPUT
#
-AC_DEFUN([LIBCFS_CONFIG_FILES],
-[AC_CONFIG_FILES([
-libcfs/Kernelenv
+AC_DEFUN([LIBCFS_CONFIG_FILES], [
+AC_CONFIG_FILES([
libcfs/Makefile
libcfs/autoMakefile
libcfs/autoconf/Makefile
libcfs/include/Makefile
libcfs/include/libcfs/Makefile
libcfs/include/libcfs/linux/Makefile
-libcfs/include/libcfs/posix/Makefile
libcfs/include/libcfs/util/Makefile
libcfs/libcfs/Makefile
libcfs/libcfs/autoMakefile
libcfs/libcfs/linux/Makefile
-libcfs/libcfs/posix/Makefile
libcfs/libcfs/util/Makefile
-libcfs/include/libcfs/darwin/Makefile
-libcfs/libcfs/darwin/Makefile
-])
])
+]) # LIBCFS_CONFIG_FILES
git://git.whamcloud.com / fs / lustre-release.git / blobdiff