#
-# 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],
AC_MSG_RESULT([$enable_libcfs_assert])
AS_IF([test x$enable_libcfs_assert = xyes],
[AC_DEFINE(LIBCFS_DEBUG, 1, [enable libcfs LASSERT, LASSERTF])])
-]) # LN_CONFIG_CDEBUG
+]) # LIBCFS_CONFIG_CDEBUG
#
# LIBCFS_CONFIG_PANIC_DUMPLOG
]) # LIBCFS_CONFIG_PANIC_DUMPLOG
#
-# LIBCFS_U64_LONG_LONG_LINUX
-#
-# check kernel __u64 type
-#
-AC_DEFUN([LIBCFS_U64_LONG_LONG_LINUX], [
-tmp_flags="$EXTRA_KCFLAGS"
-EXTRA_KCFLAGS="$EXTRA_KCFLAGS -Werror"
-LB_CHECK_COMPILE([if Linux kernel '__u64' is 'long long' type],
-kernel_u64_long_long, [
- #include <linux/types.h>
- #include <linux/stddef.h>
-],[
- unsigned long long *data;
- data = (__u64*)sizeof(data);
-],[
- AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
- [Linux kernel __u64 is long long type])
-])
-EXTRA_KCFLAGS="$tmp_flags"
-]) # LIBCFS_U64_LONG_LONG_LINUX
-
-#
# LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK
#
# 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops'
]) # LIBCFS_SYSCTL_CTLNAME
#
-# LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
+# LIBCFS_MODULE_LOCKING
#
-# 2.6.34 adds __add_wait_queue_exclusive
+# 2.6.36 introduced locking to module params. RHEL6 lacks this support
#
-AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE], [
-LB_CHECK_COMPILE([if '__add_wait_queue_exclusive' exists],
-__add_wait_queue_exclusive, [
- #include <linux/wait.h>
+AC_DEFUN([LIBCFS_MODULE_LOCKING],[
+LB_CHECK_COMPILE([does the kernel support module param locking],
+module_param_locking, [
+ #include <linux/moduleparam.h>
],[
- wait_queue_head_t queue;
- wait_queue_t wait;
- __add_wait_queue_exclusive(&queue, &wait);
+ __kernel_param_lock(NULL);
+ __kernel_param_unlock(NULL);
],[
- AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
- [__add_wait_queue_exclusive exists])
+ AC_DEFINE(HAVE_MODULE_PARAM_LOCKING, 1,
+ [locking module param is supported])
])
-]) # LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE
+]) # LIBCFS_MODULE_LOCKING
#
-# LC_SK_SLEEP
+# LIBCFS_KSTRTOUL
#
-# 2.6.35 kernel has sk_sleep function
+# 2.6.38 kstrtoul is added
#
-AC_DEFUN([LC_SK_SLEEP], [
-LB_CHECK_COMPILE([if Linux kernel has 'sk_sleep'],
-sk_sleep, [
- #include <net/sock.h>
+AC_DEFUN([LIBCFS_KSTRTOUL], [
+LB_CHECK_COMPILE([if Linux kernel has 'kstrtoul'],
+kstrtoul, [
+ #include <linux/kernel.h>
],[
- sk_sleep(NULL);
+ unsigned long result;
+ return kstrtoul("12345", 0, &result);
],[
- AC_DEFINE(HAVE_SK_SLEEP, 1,
- [kernel has sk_sleep])
+ AC_DEFINE(HAVE_KSTRTOUL, 1,
+ [kernel has kstrtoul])
])
-]) # LC_SK_SLEEP
+]) # LIBCFS_KSTRTOUL
#
# LIBCFS_DUMP_TRACE_ADDRESS
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};
#
# LIBCFS_PROCESS_NAMESPACE
#
-# 3.4 introduced 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,
]) # LIBCFS_PROCESS_NAMESPACE
#
-# LIBCFS_SOCK_ALLOC_FILE
-#
-# FC18 3.7.2-201 unexport sock_map_fd() change to
-# use sock_alloc_file().
-# upstream commit 56b31d1c9f1e6a3ad92e7bfe252721e05d92b285
-#
-AC_DEFUN([LIBCFS_SOCK_ALLOC_FILE], [
-LB_CHECK_EXPORT([sock_alloc_file], [net/socket.c], [
- LB_CHECK_COMPILE([if 'sock_alloc_file' takes 3 arguments],
- sock_alloc_file_3args, [
- #include <linux/net.h>
- ],[
- sock_alloc_file(NULL, 0, NULL);
- ],[
- AC_DEFINE(HAVE_SOCK_ALLOC_FILE_3ARGS, 1,
- [sock_alloc_file takes 3 arguments])
- ],[
- AC_DEFINE(HAVE_SOCK_ALLOC_FILE, 1,
- [sock_alloc_file is exported])
- ])
+# 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_SOCK_ALLOC_FILE
+]) # LIBCFS_I_UID_READ
#
# LIBCFS_HAVE_CRC32
[enable_crc32_crypto="no"], [enable_crc32_crypto="yes"])
AS_IF([test "x$have_crc32" = xyes -a "x$enable_crc32_crypto" = xyes], [
AC_DEFINE(NEED_CRC32_ACCEL, 1, [need pclmulqdq based crc32])
- AC_MSG_WARN([
-
-No crc32 pclmulqdq crypto api found, enable internal pclmulqdq based crc32
-])])
+ AC_MSG_WARN([No crc32 pclmulqdq crypto api found, enable internal pclmulqdq based crc32])])
]) # LIBCFS_ENABLE_CRC32_ACCEL
#
[enable_crc32c_crypto="no"], [enable_crc32c_crypto="yes"])
AS_IF([test "x$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
-])])
+ AC_MSG_WARN([No crc32c pclmulqdq crypto api found, enable internal pclmulqdq based crc32c])])
]) # LIBCFS_ENABLE_CRC32C_ACCEL
#
+# 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>
+],[
+ struct timespec64 *ts = NULL;
+
+ ktime_get_ts64(ts);
+],[
+ AC_DEFINE(HAVE_KTIME_GET_TS64, 1,
+ ['ktime_get_ts64' is available])
+])
+]) # LIBCFS_KTIME_GET_TS64
+
+#
+# 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;
+
+ total = ktime_add(start, end);
+],[
+ 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>
+],[
+ ktime_t start = ktime_set(0, 0);
+ ktime_t end = start;
+
+ ktime_after(start, end);
+],[
+ 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
+
+#
+# Kernel version 3.12 introduced ktime_compare
+#
+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
+
+#
# FC19 3.12 kernel struct shrinker change
#
AC_DEFUN([LIBCFS_SHRINKER_COUNT],[
#include <linux/mmzone.h>
#include <linux/shrinker.h>
],[
- ((struct shrinker*)0)->count_objects(NULL, NULL);
+ struct shrinker shrinker;
+
+ shrinker.count_objects = NULL;
],[
AC_DEFINE(HAVE_SHRINKER_COUNT, 1,
- [shrinker has count_objects memeber])
+ [shrinker has count_objects member])
+])
+]) # LIBCFS_SHRINKER_COUNT
+
+#
+# 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;
+
+ ktime_get_real_ts64(ts);
+],[
+ 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>
+],[
+ time64_t now;
+
+ now = ktime_get_real_seconds();
+],[
+ 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
+
+#
+# Kernel version 3.17 created ktime_get_real_ns wrapper
+#
+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_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);
+],[
+ 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>
+],[
+ struct timespec64 later = { }, earlier = { }, diff;
+
+ diff = timespec64_sub(later, earlier);
+],[
+ 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
+
+#
+# Kernel version 3.19 introduced ktime_get_seconds
+#
+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_KTIME_MS_DELTA],[
+LB_CHECK_COMPILE([does function 'ktime_ms_delta' exist],
+ktime_ms_delta, [
+ #include <linux/ktime.h>
+],[
+ 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>
+],[
+ kernel_param_lock(NULL);
+ kernel_param_unlock(NULL);
+],[
+ 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
+
+#
+# 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_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
+
+#
+# Kernerl 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>
+],[
+ 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
+
+#
+# Kernel version 4.6 removed both struct task_struct and struct mm_struct
+# arguments to get_user_pages
+#
+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>
+],[
+ int rc;
+
+ rc = get_user_pages(0, 0, 0, 0, NULL, NULL);
+],[
+ 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="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if internal '__rhashtable_insert_fast()' returns int],
+rhashtable_insert_fast, [
+ #include <linux/rhashtable.h>
+],[
+ const struct rhashtable_params params = { 0 };
+ int rc;
+
+ rc = __rhashtable_insert_fast(NULL, NULL, NULL, params);
+],[
+ AC_DEFINE(HAVE_HASHTABLE_INSERT_FAST_RETURN_INT, 1,
+ ['__rhashtable_insert_fast()' returns int])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LIBCFS_RHASHTABLE_INSERT_FAST
+
+#
+# Kernel version 4.8-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
+
+#
+# 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_RHLTABLE], [
+LB_CHECK_COMPILE([does 'struct rhltable' exist],
+rhtable, [
+ #include <linux/rhashtable.h>
+],[
+ struct rhltable *hlt;
+
+ rhltable_destroy(hlt);
+],[
+ 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>
+],[
+ struct stacktrace_ops ops;
+ ops.stack = NULL;
+],[
+ AC_DEFINE(HAVE_STACKTRACE_OPS, 1,
+ [struct stacktrace_ops exists])
+])
+]) # LIBCFS_STACKTRACE_OPS
+
+#
+# Kernel version 4.9 commit 768ae309a96103ed02eb1e111e838c87854d8b51
+# mm: replace get_user_pages() write/force parameters with gup_flags
+#
+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>
+],[
+ int rc;
+ rc = get_user_pages(0, 0, FOLL_WRITE, NULL, NULL);
+],[
+ 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>
+],[
+ 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 commit f9fe1c12d126f9887441fa5bb165046f30ddd4b5
+# introduced rhashtable_lookup_get_insert_fast
+#
+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>
+],[
+ const struct rhashtable_params params = { 0 };
+ void *ret;
+
+ ret = rhashtable_lookup_get_insert_fast(NULL, NULL, params);
+],[
+ 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>
+],[
+ uuid_t uuid;
+
+ memset(uuid.b, 0, 16);
+],[
+ AC_DEFINE(HAVE_UUID_T, 1, ['uuid_t' exist])
+])
+]) # LIBCFS_UUID_T
+
+#
+# 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
+
+#
+# LIBCFS_NEW_KERNEL_WRITE
+#
+# 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_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_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_PROG_LINUX
==============================================================================])
LIBCFS_CONFIG_PANIC_DUMPLOG
-LIBCFS_U64_LONG_LONG_LINUX
# 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
# 3.0
LIBCFS_STACKTRACE_WARNING
-# 3.4
+# 3.5
LIBCFS_PROCESS_NAMESPACE
-# 3.7
-LIBCFS_SOCK_ALLOC_FILE
+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_KERNEL_PARAM_OPS
+LIBCFS_KTIME_ADD
+LIBCFS_KTIME_AFTER
+LIBCFS_KTIME_BEFORE
+LIBCFS_KTIME_COMPARE
LIBCFS_SHRINKER_COUNT
+# 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
+# 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
+# 4.8
+LIBCFS_RHASHTABLE_LOOKUP
+LIBCFS_RHLTABLE
+LIBCFS_STACKTRACE_OPS
+# 4.9
+LIBCFS_GET_USER_PAGES_GUP_FLAGS
+# 4.10
+LIBCFS_HOTPLUG_STATE_MACHINE
+# 4.11
+LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST
+LIBCFS_SCHED_HEADERS
+# 4.12
+LIBCFS_UUID_T
+# 4.13
+LIBCFS_WAIT_QUEUE_ENTRY
+# 4.14
+LIBCFS_DEFINE_TIMER
+LIBCFS_NEW_KERNEL_WRITE
+# 4.15
+LIBCFS_TIMER_SETUP
]) # LIBCFS_PROG_LINUX
#
-# LIBCFS_PROG_DARWIN
-#
-# Darwin checks
-#
-AC_DEFUN([LIBCFS_PROG_DARWIN], [
-LB_DARWIN_CHECK_FUNCS([get_preemption_level])
-]) # LIBCFS_PROG_DARWIN
-
-#
# LIBCFS_PATH_DEFAULTS
#
# default paths for installed files
AC_MSG_NOTICE([LibCFS core checks
==============================================================================])
-# 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>])
+# 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([whether to enable 'efence' debugging support])
-AC_ARG_ENABLE(efence,
- AC_HELP_STRING([--enable-efence],
- [use efence library]),
- [], [enable_efence="no"])
-AC_MSG_RESULT([$enable_efence])
-AS_IF([test "$enable_efence" = yes], [
- LIBEFENCE="-lefence"
- AC_DEFINE(HAVE_LIBEFENCE, 1, [libefence support is requested])
-], [
- LIBEFENCE=""
-])
-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([$enable_readline])
-# -------- check for -lpthread support ----
+LIBREADLINE=""
+AS_IF([test "x$enable_readline" = xyes], [
+ AC_CHECK_LIB([readline], [readline], [
+ LIBREADLINE="-lreadline"
+ AC_DEFINE(HAVE_LIBREADLINE, 1,
+ [readline library is available])
+ ])
+])
+AC_SUBST(LIBREADLINE)
AC_MSG_CHECKING([whether to use libpthread for libcfs library])
AC_ARG_ENABLE([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],
- [ENABLE_LIBPTHREAD="yes"],
- [ENABLE_LIBPTHREAD="no"])
- AS_IF([test "$ENABLE_LIBPTHREAD" = yes], [
+ AC_CHECK_LIB([pthread], [pthread_create], [
PTHREAD_LIBS="-lpthread"
- AC_DEFINE([HAVE_LIBPTHREAD], 1, [use libpthread])
- ], [
- PTHREAD_LIBS=""
+ AC_DEFINE([HAVE_LIBPTHREAD], 1,
+ [use libpthread for libcfs library])
])
- AC_SUBST(PTHREAD_LIBS)
], [
AC_MSG_WARN([Using libpthread for libcfs library is disabled explicitly])
- ENABLE_LIBPTHREAD="no"
])
-AC_SUBST(ENABLE_LIBPTHREAD)
+AC_SUBST(PTHREAD_LIBS)
]) # LIBCFS_CONFIGURE
#
#
AC_DEFUN([LIBCFS_CONFIG_FILES], [
AC_CONFIG_FILES([
-libcfs/Kernelenv
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