fi
])
-#
-# 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>
-],[
- cpu_online(0);
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CPU_ONLINE, 1, [cpu_online found])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LIBCFS_TYPE_GFP_T
-#
-# check if gfp_t is typedef-ed
-#
-AC_DEFUN([LIBCFS_TYPE_GFP_T],
-[AC_MSG_CHECKING([if kernel defines gfp_t])
-LB_LINUX_TRY_COMPILE([
- #include <linux/gfp.h>
-],[
- return sizeof(gfp_t);
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_GFP_T, 1, [gfp_t found])
-],[
- 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)
-#
-AC_DEFUN([LIBCFS_FUNC_SHOW_TASK],
-[LB_CHECK_SYMBOL_EXPORT([show_task],
-[kernel/ksyms.c kernel/sched.c],[
-AC_DEFINE(HAVE_SHOW_TASK, 1, [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="$EXTRA_KCFLAGS -Werror"
#include <linux/types.h>
#include <linux/stddef.h>
],[
- unsigned long long *data1;
- __u64 *data2 = NULL;
+ unsigned long long *data;
- data1 = data2;
+ data = (__u64*)sizeof(data);
],[
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1,
EXTRA_KCFLAGS="$tmp_flags"
])
-# check if task_struct with rcu memeber
-AC_DEFUN([LIBCFS_TASK_RCU],
-[AC_MSG_CHECKING([if task_struct has a rcu field])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- struct task_struct tsk;
-
- tsk.rcu.next = NULL;
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_TASK_RCU, 1,
- [task_struct has rcu field])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-# LIBCFS_TASKLIST_LOCK
-# 2.6.18 remove tasklist_lock export
-AC_DEFUN([LIBCFS_TASKLIST_LOCK],
-[LB_CHECK_SYMBOL_EXPORT([tasklist_lock],
-[kernel/fork.c],[
-AC_DEFINE(HAVE_TASKLIST_LOCK, 1,
- [tasklist_lock exported])
-],[
-])
-])
-
-# 2.6.19 API changes
-# kmem_cache_destroy(cachep) return void instead of
-# int
-AC_DEFUN([LIBCFS_KMEM_CACHE_DESTROY_INT],
-[AC_MSG_CHECKING([kmem_cache_destroy(cachep) return int])
+# 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/slab.h>
+ #include <linux/sysctl.h>
],[
- int i = kmem_cache_destroy(NULL);
+ #ifndef CTL_UNNUMBERED
+ #error CTL_UNNUMBERED not exist in kernel
+ #endif
],[
AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_KMEM_CACHE_DESTROY_INT, 1,
- [kmem_cache_destroy(cachep) return int])
+ AC_DEFINE(HAVE_SYSCTL_UNNUMBERED, 1,
+ [sysctl has CTL_UNNUMBERED])
],[
AC_MSG_RESULT(NO)
])
])
-# 2.6.19 API change
-#panic_notifier_list use atomic_notifier operations
#
-AC_DEFUN([LIBCFS_ATOMIC_PANIC_NOTIFIER],
-[AC_MSG_CHECKING([panic_notifier_list is atomic])
+# 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 <linux/notifier.h>
- #include <linux/kernel.h>
+ #include <asm/stacktrace.h>
],[
- struct atomic_notifier_head panic_notifier_list;
+ ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL);
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_ATOMIC_PANIC_NOTIFIER, 1,
- [panic_notifier_list is atomic_notifier_head])
+ AC_MSG_RESULT([yes])
+ AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field])
],[
- AC_MSG_RESULT(NO)
+ AC_MSG_RESULT([no])
])
])
-# since 2.6.19 nlmsg_multicast() needs 5 argument.
-AC_DEFUN([LIBCFS_NLMSG_MULTICAST],
-[AC_MSG_CHECKING([nlmsg_multicast needs 5 argument])
-LB_LINUX_TRY_COMPILE([
- #include <net/netlink.h>
-],[
- nlmsg_multicast(NULL, NULL, 0, 0, 0);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_NLMSG_MULTICAST_5ARGS, 1,
- [nlmsg_multicast needs 5 argument])
+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])
],[
- AC_MSG_RESULT(NO)
+ AC_MSG_RESULT([no])
])
])
#
-# LIBCFS_NETLINK
+# RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function
#
-# If we have netlink.h, and nlmsg_new takes 2 args (2.6.19)
-#
-AC_DEFUN([LIBCFS_NETLINK],
-[AC_MSG_CHECKING([if netlink.h can be compiled])
-LB_LINUX_TRY_COMPILE([
- #include <net/netlink.h>
-],[],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_NETLINK, 1, [net/netlink.h found])
-
- AC_MSG_CHECKING([if nlmsg_new takes a 2nd argument])
- LB_LINUX_TRY_COMPILE([
- #include <net/netlink.h>
- ],[
- nlmsg_new(100, GFP_KERNEL);
- ],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_NETLINK_NL2, 1, [nlmsg_new takes 2 args])
- ],[
- AC_MSG_RESULT([no])
- ])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-# 2.6.20 API change INIT_WORK use 2 args and not
-# store data inside
-AC_DEFUN([LIBCFS_3ARGS_INIT_WORK],
-[AC_MSG_CHECKING([check INIT_WORK want 3 args])
+AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR],
+[AC_MSG_CHECKING([shrinker want self pointer in handler])
LB_LINUX_TRY_COMPILE([
- #include <linux/workqueue.h>
+ #include <linux/mm.h>
],[
- struct work_struct work;
-
- INIT_WORK(&work, NULL, NULL);
+ struct shrinker *tmp = NULL;
+ tmp->shrink(tmp, 0, 0);
],[
AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_3ARGS_INIT_WORK, 1,
- [INIT_WORK use 3 args and store data inside])
+ AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1,
+ [shrinker want self pointer in handler])
],[
- AC_MSG_RESULT(NO)
+ AC_MSG_RESULT(no)
])
])
-# 2.6.21 api change. 'register_sysctl_table' use only one argument,
-# instead of more old which need two.
-AC_DEFUN([LIBCFS_2ARGS_REGISTER_SYSCTL],
-[AC_MSG_CHECKING([check register_sysctl_table want 2 args])
+#
+# 2.6.33 no longer has ctl_name & strategy field in struct ctl_table.
+#
+AC_DEFUN([LIBCFS_SYSCTL_CTLNAME],
+[AC_MSG_CHECKING([if ctl_table has a ctl_name field])
LB_LINUX_TRY_COMPILE([
#include <linux/sysctl.h>
],[
- return register_sysctl_table(NULL,0);
+ struct ctl_table ct;
+ ct.ctl_name = sizeof(ct);
],[
AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_2ARGS_REGISTER_SYSCTL, 1,
- [register_sysctl_table want 2 args])
+ AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1,
+ [ctl_table has ctl_name field])
],[
- AC_MSG_RESULT(NO)
+ AC_MSG_RESULT(no)
])
])
-# 2.6.21 marks kmem_cache_t deprecated and uses struct kmem_cache
-# instead
-AC_DEFUN([LIBCFS_KMEM_CACHE],
-[AC_MSG_CHECKING([check kernel has struct kmem_cache])
-tmp_flags="$EXTRA_KCFLAGS"
-EXTRA_KCFLAGS="-Werror"
+#
+# 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/slab.h>
- typedef struct kmem_cache cache_t;
+ #include <linux/wait.h>
],[
- cache_t *cachep = NULL;
-
- kmem_cache_alloc(cachep, 0);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_KMEM_CACHE, 1,
- [kernel has struct kmem_cache])
-],[
- AC_MSG_RESULT(NO)
-])
-EXTRA_KCFLAGS="$tmp_flags"
-])
+ wait_queue_head_t queue;
+ wait_queue_t wait;
-# 2.6.23 lost dtor argument
-AC_DEFUN([LIBCFS_KMEM_CACHE_CREATE_DTOR],
-[AC_MSG_CHECKING([check kmem_cache_create has dtor argument])
-LB_LINUX_TRY_COMPILE([
- #include <linux/slab.h>
-],[
- kmem_cache_create(NULL, 0, 0, 0, NULL, NULL);
+ __add_wait_queue_exclusive(&queue, &wait);
],[
AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_KMEM_CACHE_CREATE_DTOR, 1,
- [kmem_cache_create has dtor argument])
+ AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1,
+ [__add_wait_queue_exclusive exists])
],[
- AC_MSG_RESULT(NO)
+ AC_MSG_RESULT(no)
])
])
-# 2.6.24
-AC_DEFUN([LIBCFS_NETLINK_CBMUTEX],
-[AC_MSG_CHECKING([for mutex in netlink_kernel_create])
+#
+# 2.6.35 kernel has sk_sleep function
+#
+AC_DEFUN([LC_SK_SLEEP],
+[AC_MSG_CHECKING([if kernel has sk_sleep])
LB_LINUX_TRY_COMPILE([
- #include <linux/netlink.h>
+ #include <net/sock.h>
],[
- struct mutex *lock = NULL;
-
- netlink_kernel_create(0, 0, NULL, lock, NULL);
+ sk_sleep(NULL);
],[
AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_NETLINK_CBMUTEX, 1,
- [netlink_kernel_create want mutex for callback])
+ AC_DEFINE(HAVE_SK_SLEEP, 1, [kernel has sk_sleep])
],[
- AC_MSG_RESULT(NO)
-])
-])
-
-# 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>
+ AC_MSG_RESULT(no)
],[
- #ifndef CTL_UNNUMBERED
- #error CTL_UNNUMBERED not exist in kernel
- #endif
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SYSCTL_UNNUMBERED, 1,
- [sysctl has CTL_UNNUMBERED])
-],[
- AC_MSG_RESULT(NO)
])
])
-# 2.6.24 lost scatterlist->page
-AC_DEFUN([LIBCFS_SCATTERLIST_SETPAGE],
-[AC_MSG_CHECKING([for exist sg_set_page])
+# 2.6.39 adds a base pointer address argument to dump_trace
+AC_DEFUN([LIBCFS_DUMP_TRACE_ADDRESS],
+[AC_MSG_CHECKING([dump_trace want address])
LB_LINUX_TRY_COMPILE([
- #include <asm/types.h>
- #include <linux/scatterlist.h>
-],[
- sg_set_page(NULL,NULL,0,0);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SCATTERLIST_SETPAGE, 1,
- [struct scatterlist has page member])
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
],[
- AC_MSG_RESULT(NO)
-])
-])
-
-# from 2.6.24 please use sg_init_table
-AC_DEFUN([LIBCFS_SCATTERLIST_INITTABLE],
-[AC_MSG_CHECKING([if sg_init_table is defined])
-LB_LINUX_TRY_COMPILE([
- #include <linux/scatterlist.h>
+ dump_trace(NULL, NULL, NULL, 0, NULL, NULL);
],[
- sg_init_table(NULL,0);
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1,
+ [dump_trace want address argument])
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SCATTERLIST_INITTABLE, 1,
- [sg_init_table is defined])
+ AC_MSG_RESULT(no)
],[
- AC_MSG_RESULT(NO)
])
])
-# 2.6.24
-AC_DEFUN([LIBCFS_NETWORK_NAMESPACE],
-[AC_MSG_CHECKING([for network stack has namespaces])
+#
+# FC15 2.6.40-5 backported the "shrink_control" parameter to the memory
+# pressure shrinker from Linux 3.0
+#
+AC_DEFUN([LC_SHRINK_CONTROL],
+[AC_MSG_CHECKING([shrink_control is present])
LB_LINUX_TRY_COMPILE([
- #include <net/net_namespace.h>
+ #include <linux/mm.h>
],[
- struct net *net = &init_net;
+ struct shrink_control tmp = {0};
+ tmp.nr_to_scan = sizeof(tmp);
],[
AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_INIT_NET, 1,
- [kernel is support network namespaces ])
+ AC_DEFINE(HAVE_SHRINK_CONTROL, 1,
+ [shrink_control is present])
],[
- AC_MSG_RESULT(NO)
+ AC_MSG_RESULT(no)
])
])
-
-# 2.6.24
-AC_DEFUN([LIBCFS_NETLINK_NETNS],
-[AC_MSG_CHECKING([for netlink support net ns])
+# 3.0 removes stacktrace_ops warning* functions
+AC_DEFUN([LIBCFS_STACKTRACE_WARNING],
+[AC_MSG_CHECKING([whether stacktrace_ops.warning is exist])
LB_LINUX_TRY_COMPILE([
- #include <linux/netlink.h>
+ struct task_struct;
+ struct pt_regs;
+ #include <asm/stacktrace.h>
],[
- struct net *net = NULL;
- struct mutex *lock = NULL;
-
- netlink_kernel_create(net, 0, 0, NULL,
- lock,
- NULL);
+ ((struct stacktrace_ops *)0)->warning(NULL, NULL);
],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_NETLINK_NS, 1,
- [netlink is support network namespace])
-# XXX
-# for now - if kernel have netlink ns - he uses cbmutex
- AC_DEFINE(HAVE_NETLINK_CBMUTEX, 1,
- [netlink_kernel_create want mutex for callback])
-
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, [stacktrace_ops.warning is exist])
],[
- AC_MSG_RESULT(NO)
-])
-])
-
-# ~2.6.24
-AC_DEFUN([LIBCFS_NL_BROADCAST_GFP],
-[AC_MSG_CHECKING([for netlink_broadcast is want to have gfp parameter])
-LB_LINUX_TRY_COMPILE([
- #include <linux/netlink.h>
+ AC_MSG_RESULT(no)
],[
- gfp_t gfp = GFP_KERNEL;
-
- netlink_broadcast(NULL, NULL, 0, 0, gfp);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_NL_BROADCAST_GFP, 1,
- [netlink brouacast is want to have gfp paramter])
-],[
- AC_MSG_RESULT(NO)
])
])
#
-# LIBCFS_FUNC_DUMP_TRACE
+# FC18 3.7.2-201 unexport sock_map_fd() change to
+# use sock_alloc_file().
+# upstream commit 56b31d1c9f1e6a3ad92e7bfe252721e05d92b285
#
-# 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_FUNC_DUMP_TRACE],
-[LB_CHECK_SYMBOL_EXPORT([dump_trace],
-[kernel/ksyms.c arch/${LINUX_ARCH%_64}/kernel/traps_64.c],[
- tmp_flags="$EXTRA_KCFLAGS"
- EXTRA_KCFLAGS="-Werror"
- AC_MSG_CHECKING([whether we can really use dump_trace])
+AC_DEFUN([LIBCFS_SOCK_ALLOC_FILE],
+[AC_MSG_CHECKING([sock_alloc_file is exported])
+LB_CHECK_SYMBOL_EXPORT([sock_alloc_file], [net/socket.c],[
LB_LINUX_TRY_COMPILE([
- struct task_struct;
- struct pt_regs;
- #include <asm/stacktrace.h>
+ #include <linux/net.h>
],[
+ sock_alloc_file(NULL, 0, NULL);
],[
AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_DUMP_TRACE, 1, [dump_trace is exported])
- ],[
- AC_MSG_RESULT(no)
- ],[
- ])
- AC_MSG_CHECKING([whether print_trace_address has reliable argument])
- LB_LINUX_TRY_COMPILE([
- struct task_struct;
- struct pt_regs;
- void print_addr(void *data, unsigned long addr, int reliable);
- #include <asm/stacktrace.h>
- ],[
- struct stacktrace_ops ops;
-
- ops.address = print_addr;
+ AC_DEFINE(HAVE_SOCK_ALLOC_FILE_3ARGS, 1,
+ [sock_alloc_file takes 3 arguments])
],[
AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_TRACE_ADDRESS_RELIABLE, 1,
- [print_trace_address has reliable argument])
- ],[
- AC_MSG_RESULT(no)
- ],[
+ AC_DEFINE(HAVE_SOCK_ALLOC_FILE, 1,
+ [sock_alloc_file is exported])
])
-EXTRA_KCFLAGS="$tmp_flags"
-])
-])
-
-
-# 2.6.26 use int instead of atomic for sem.count
-AC_DEFUN([LIBCFS_SEM_COUNT],
-[AC_MSG_CHECKING([atomic sem.count])
-LB_LINUX_TRY_COMPILE([
- #include <asm/semaphore.h>
-],[
- struct semaphore s;
-
- atomic_read(&s.count);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SEM_COUNT_ATOMIC, 1,
- [semaphore counter is atomic])
],[
- AC_MSG_RESULT(NO)
])
])
-# 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>
-],[
- sock_map_fd(NULL, 0);
-],[
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_SOCK_MAP_FD_2ARG, 1,
- [sock_map_fd have second argument])
-],[
- AC_MSG_RESULT(NO)
-])
-])
-
-# LIBCFS_CRED_WRAPPERS
-#
-# wrappers for task's credentials are in sles11
-#
-AC_DEFUN([LIBCFS_CRED_WRAPPERS],
-[AC_MSG_CHECKING([if kernel has wrappers for task's credentials])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- uid_t uid;
-
- uid = current_uid();
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_CRED_WRAPPERS, 1, [task's cred wrappers found])
-],[
- AC_MSG_RESULT([no])
-])
-])
-
-#
-# LN_STRUCT_CRED_IN_TASK
-#
-# struct cred was introduced in 2.6.29 to streamline credentials in task struct
-#
-AC_DEFUN([LIBCFS_STRUCT_CRED_IN_TASK],
-[AC_MSG_CHECKING([if kernel has struct cred])
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
-],[
- struct task_struct *tsk = NULL;
- tsk->real_cred = NULL;
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_STRUCT_CRED, 1, [struct cred found])
-],[
- AC_MSG_RESULT([no])
-])
+AC_DEFUN([LIBCFS_HAVE_CRC32],
+[LB_LINUX_CONFIG_IM([CRC32],
+ [have_crc32=true],[have_crc32=false])
+if test x$have_crc32 = xtrue; then
+ AC_DEFINE(HAVE_CRC32, 1, [kernel compiled with CRC32 functions])
+fi
])
-#
-# LIBCFS_FUNC_UNSHARE_FS_STRUCT
-#
-# unshare_fs_struct was introduced in 2.6.30 to prevent others to directly
-# mess with copy_fs_struct
-#
-AC_DEFUN([LIBCFS_FUNC_UNSHARE_FS_STRUCT],
-[AC_MSG_CHECKING([if kernel defines unshare_fs_struct()])
-tmp_flags="$EXTRA_KCFLAGS"
-EXTRA_KCFLAGS="-Werror"
-LB_LINUX_TRY_COMPILE([
- #include <linux/sched.h>
- #include <linux/fs_struct.h>
-],[
- unshare_fs_struct();
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_UNSHARE_FS_STRUCT, 1, [unshare_fs_struct found])
-],[
- AC_MSG_RESULT([no])
-])
-EXTRA_KCFLAGS="$tmp_flags"
+AC_DEFUN([LIBCFS_ENABLE_CRC32_ACCEL],
+[LB_LINUX_CONFIG_IM([CRYPTO_CRC32_PCLMUL],
+ [enable_crc32_crypto=false],[enable_crc32_crypto=true])
+if test x$have_crc32 = xtrue -a x$enable_crc32_crypto = xtrue; then
+ AC_DEFINE(NEED_CRC32_ACCEL, 1, [need pclmulqdq based crc32])
+ AC_MSG_WARN([No crc32 pclmulqdq crypto api found,
+ enable internal pclmulqdq based crc32])
+fi
])
-#
-# LIBCFS_HAVE_IS_COMPAT_TASK
-#
-# Added in 2.6.17, it wasn't until 2.6.29 that all
-# Linux architectures have is_compat_task()
-#
-AC_DEFUN([LIBCFS_HAVE_IS_COMPAT_TASK],
-[AC_MSG_CHECKING([if is_compat_task() is declared])
-LB_LINUX_TRY_COMPILE([
- #include <linux/compat.h>
-],[
- int i = is_compat_task();
-],[
- AC_MSG_RESULT([yes])
- AC_DEFINE(HAVE_IS_COMPAT_TASK, 1, [is_compat_task() is available])
-],[
- AC_MSG_RESULT([no])
-])
+AC_DEFUN([LIBCFS_ENABLE_CRC32C_ACCEL],
+[LB_LINUX_CONFIG_IM([CRYPTO_CRC32C_INTEL],
+ [enable_crc32c_crypto=false],[enable_crc32c_crypto=true])
+if test x$enable_crc32c_crypto = xtrue; then
+ AC_DEFINE(NEED_CRC32C_ACCEL, 1, [need pclmulqdq based crc32c])
+ AC_MSG_WARN([No crc32c pclmulqdq crypto api found,
+ enable internal pclmulqdq based crc32c])
+fi
])
#
#
AC_DEFUN([LIBCFS_PROG_LINUX],
[
-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_TASK_RCU
-# 2.6.18
-LIBCFS_TASKLIST_LOCK
-LIBCFS_HAVE_IS_COMPAT_TASK
-# 2.6.19
-LIBCFS_NETLINK
-LIBCFS_NLMSG_MULTICAST
-LIBCFS_KMEM_CACHE_DESTROY_INT
-LIBCFS_ATOMIC_PANIC_NOTIFIER
-# 2.6.20
-LIBCFS_3ARGS_INIT_WORK
-# 2.6.21
-LIBCFS_2ARGS_REGISTER_SYSCTL
-LIBCFS_KMEM_CACHE
-# 2.6.23
-LIBCFS_KMEM_CACHE_CREATE_DTOR
-LIBCFS_NETLINK_CBMUTEX
+LIBCFS_U64_LONG_LONG_LINUX
# 2.6.24
LIBCFS_SYSCTL_UNNUMBERED
-LIBCFS_SCATTERLIST_SETPAGE
-LIBCFS_SCATTERLIST_INITTABLE
-LIBCFS_NL_BROADCAST_GFP
-LIBCFS_NETWORK_NAMESPACE
-LIBCFS_NETLINK_NETNS
-LIBCFS_FUNC_DUMP_TRACE
-# 2.6.26
-LIBCFS_SEM_COUNT
-# 2.6.27
-LIBCFS_CRED_WRAPPERS
-# 2.6.29
-LIBCFS_STRUCT_CRED_IN_TASK
-# 2.6.30
-LIBCFS_FUNC_UNSHARE_FS_STRUCT
-LIBCFS_SOCK_MAP_FD_2ARG
+LIBCFS_HAVE_KEYTYPE_H
+# 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
+# 2.6.39
+LIBCFS_DUMP_TRACE_ADDRESS
+# 2.6.40 fc15
+LC_SHRINK_CONTROL
+# 3.0
+LIBCFS_STACKTRACE_WARNING
+# 3.7
+LIBCFS_SOCK_ALLOC_FILE
+# 3.8
+LIBCFS_HAVE_CRC32
+LIBCFS_ENABLE_CRC32_ACCEL
+# 3.10
+LIBCFS_ENABLE_CRC32C_ACCEL
])
#
# 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>])
+# 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="$tmp_flags"
+
# -------- Check for required packages --------------
#
AC_DEFUN([LIBCFS_CONDITIONALS],
[
+AM_CONDITIONAL(HAVE_CRC32, test x$have_crc32 = xtrue)
+AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32, test x$have_crc32 = xtrue -a x$enable_crc32_crypto = xtrue)
+AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32C, test x$enable_crc32c_crypto = xtrue)
])
#
git://git.whamcloud.com / fs / lustre-release.git / blobdiff