X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=libcfs%2Fautoconf%2Flustre-libcfs.m4;h=da15da913f44efd3c63aa22a2781314bba1f3709;hp=d764b236720fe0be35ade5f2946b8fb7b8ef3240;hb=294c39d488fcd95a523466c7726ff1b5a8327890;hpb=26008f505c57a7affa4d12b542d3d5a790d7e69a diff --git a/libcfs/autoconf/lustre-libcfs.m4 b/libcfs/autoconf/lustre-libcfs.m4 index d764b23..da15da9 100644 --- a/libcfs/autoconf/lustre-libcfs.m4 +++ b/libcfs/autoconf/lustre-libcfs.m4 @@ -59,139 +59,9 @@ else 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 -],[ - 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 -],[ - 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 -],[ - 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 -],[ - 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 -],[ - 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 - #include - 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="$EXTRA_KCFLAGS -Werror" @@ -199,10 +69,9 @@ LB_LINUX_TRY_COMPILE([ #include #include ],[ - unsigned long long *data1; - __u64 *data2 = NULL; + unsigned long long *data; - data1 = data2; + data = (__u64*)sizeof(data); ],[ AC_MSG_RESULT([yes]) AC_DEFINE(HAVE_KERN__U64_LONG_LONG, 1, @@ -213,24 +82,6 @@ LB_LINUX_TRY_COMPILE([ EXTRA_KCFLAGS="$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 -],[ - 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], @@ -242,6 +93,26 @@ AC_DEFINE(HAVE_TASKLIST_LOCK, 1, ]) ]) +# LIBCFS_DIGEST_SETKEY_FLAGS +# digest_alg.dia_setkey takes 4 args (2.6.18) +# +AC_DEFUN([LIBCFS_DIGEST_SETKEY_FLAGS], +[AC_MSG_CHECKING([if kernel dia_setkey takes 4 args]) +LB_LINUX_TRY_COMPILE([ + #include + #include +],[ + struct digest_alg alg; + + alg.dia_setkey(NULL, NULL, 0, NULL); +],[ + AC_MSG_RESULT([yes]) + AC_DEFINE(HAVE_DIGEST_SETKEY_FLAGS, 1, [kernel dia_setkey takes 4 args]) +],[ + AC_MSG_RESULT([no]) +]) +]) + # 2.6.19 API changes # kmem_cache_destroy(cachep) return void instead of # int @@ -250,7 +121,8 @@ AC_DEFUN([LIBCFS_KMEM_CACHE_DESTROY_INT], LB_LINUX_TRY_COMPILE([ #include ],[ - int i = kmem_cache_destroy(NULL); + int i __attribute__ ((unused)); + i = kmem_cache_destroy(NULL); ],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_KMEM_CACHE_DESTROY_INT, 1, @@ -260,70 +132,117 @@ LB_LINUX_TRY_COMPILE([ ]) ]) -# 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]) +# check cpumask_size (2.6.28) +AC_DEFUN([LIBCFS_CPUMASK_SIZE], +[AC_MSG_CHECKING([whether have cpumask_size()]) LB_LINUX_TRY_COMPILE([ - #include - #include + #include ],[ - struct atomic_notifier_head panic_notifier_list; + int size = cpumask_size(); ],[ - AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_ATOMIC_PANIC_NOTIFIER, 1, - [panic_notifier_list is atomic_notifier_head]) + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_CPUMASK_SIZE, 1, [have cpumask_size()]) ],[ - 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 -],[ - nlmsg_multicast(NULL, NULL, 0, 0, 0); -],[ - AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_NLMSG_MULTICAST_5ARGS, 1, - [nlmsg_multicast needs 5 argument]) -],[ - AC_MSG_RESULT(NO) + AC_MSG_RESULT(NO) ]) ]) +# check cpu topology functions # -# LIBCFS_NETLINK -# -# 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]) +# 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 + #include ],[],[ - 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 - ],[ - 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_DEFINE(HAVE_CPU_TOPOLOGY, 1, [have CPU topology]) + AC_MSG_RESULT(yes) + + AC_MSG_CHECKING([whether have topology_core_cpumask]) + LB_LINUX_TRY_COMPILE([ + #include + ],[ + 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) + ]) + + AC_MSG_CHECKING([whether have topology_core_siblings]) + LB_LINUX_TRY_COMPILE([ + #include + ],[ + 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) + ]) + + AC_MSG_CHECKING([whether have topology_thread_cpumask]) + LB_LINUX_TRY_COMPILE([ + #include + ],[ + 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) + ]) + + AC_MSG_CHECKING([whether have topology_thread_siblings]) + LB_LINUX_TRY_COMPILE([ + #include + ],[ + 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) + ]) + + AC_MSG_CHECKING([whether have cpumask_of_node]) + LB_LINUX_TRY_COMPILE([ + #include + ],[ + 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) + ]) + + AC_MSG_CHECKING([whether have node_to_cpumask]) + LB_LINUX_TRY_COMPILE([ + #include + ],[ + 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) + ]) ],[ - 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], @@ -331,7 +250,7 @@ AC_DEFUN([LIBCFS_3ARGS_INIT_WORK], LB_LINUX_TRY_COMPILE([ #include ],[ - struct work_struct work; + struct work_struct work __attribute__ ((unused)); INIT_WORK(&work, NULL, NULL); ],[ @@ -350,7 +269,7 @@ AC_DEFUN([LIBCFS_2ARGS_REGISTER_SYSCTL], LB_LINUX_TRY_COMPILE([ #include ],[ - return register_sysctl_table(NULL,0); + register_sysctl_table(NULL,0); ],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_2ARGS_REGISTER_SYSCTL, 1, @@ -360,29 +279,6 @@ LB_LINUX_TRY_COMPILE([ ]) ]) -# 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="$EXTRA_KCFLAGS" -EXTRA_KCFLAGS="-Werror" -LB_LINUX_TRY_COMPILE([ - #include - typedef struct kmem_cache cache_t; -],[ - cache_t *cachep = NULL; - - kmem_cache_alloc(cachep, 0); -],[ - AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_KMEM_CACHE, 1, - [kernel has struct kmem_cache]) -],[ - AC_MSG_RESULT(NO) -]) -EXTRA_KCFLAGS="$tmp_flags" -]) - # 2.6.23 lost dtor argument AC_DEFUN([LIBCFS_KMEM_CACHE_CREATE_DTOR], [AC_MSG_CHECKING([check kmem_cache_create has dtor argument]) @@ -399,21 +295,19 @@ LB_LINUX_TRY_COMPILE([ ]) ]) -# 2.6.24 -AC_DEFUN([LIBCFS_NETLINK_CBMUTEX], -[AC_MSG_CHECKING([for mutex in netlink_kernel_create]) +#2.6.23 has new shrinker API +AC_DEFUN([LC_REGISTER_SHRINKER], +[AC_MSG_CHECKING([if kernel has register_shrinker]) LB_LINUX_TRY_COMPILE([ - #include -],[ - struct mutex *lock = NULL; - - netlink_kernel_create(0, 0, NULL, lock, NULL); + #include ],[ - AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_NETLINK_CBMUTEX, 1, - [netlink_kernel_create want mutex for callback]) + register_shrinker(NULL); +], [ + AC_MSG_RESULT([yes]) + AC_DEFINE(HAVE_REGISTER_SHRINKER, 1, + [kernel has register_shrinker]) ],[ - AC_MSG_RESULT(NO) + AC_MSG_RESULT([no]) ]) ]) @@ -452,29 +346,14 @@ LB_LINUX_TRY_COMPILE([ ]) ]) -# 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 -],[ - sg_init_table(NULL,0); -],[ - AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_SCATTERLIST_INITTABLE, 1, - [sg_init_table is defined]) -],[ - AC_MSG_RESULT(NO) -]) -]) - # 2.6.24 AC_DEFUN([LIBCFS_NETWORK_NAMESPACE], [AC_MSG_CHECKING([for network stack has namespaces]) LB_LINUX_TRY_COMPILE([ #include ],[ - struct net *net = &init_net; + struct net *net __attribute__ ((unused)); + net = &init_net; ],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_INIT_NET, 1, @@ -484,51 +363,6 @@ LB_LINUX_TRY_COMPILE([ ]) ]) - -# 2.6.24 -AC_DEFUN([LIBCFS_NETLINK_NETNS], -[AC_MSG_CHECKING([for netlink support net ns]) -LB_LINUX_TRY_COMPILE([ - #include -],[ - struct net *net = NULL; - struct mutex *lock = NULL; - - netlink_kernel_create(net, 0, 0, NULL, - lock, - 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(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 -],[ - 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 # @@ -537,7 +371,7 @@ LB_LINUX_TRY_COMPILE([ # AC_DEFUN([LIBCFS_FUNC_DUMP_TRACE], [LB_CHECK_SYMBOL_EXPORT([dump_trace], -[kernel/ksyms.c arch/${LINUX_ARCH%_64}/kernel/traps_64.c],[ +[kernel/ksyms.c arch/${LINUX_ARCH%_64}/kernel/traps_64.c arch/x86/kernel/dumpstack_32.c arch/x86/kernel/dumpstack_64.c],[ tmp_flags="$EXTRA_KCFLAGS" EXTRA_KCFLAGS="-Werror" AC_MSG_CHECKING([whether we can really use dump_trace]) @@ -557,12 +391,9 @@ AC_DEFUN([LIBCFS_FUNC_DUMP_TRACE], LB_LINUX_TRY_COMPILE([ struct task_struct; struct pt_regs; - void print_addr(void *data, unsigned long addr, int reliable); #include ],[ - struct stacktrace_ops ops; - - ops.address = print_addr; + ((struct stacktrace_ops *)0)->address(NULL, 0, 0); ],[ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_TRACE_ADDRESS_RELIABLE, 1, @@ -571,6 +402,36 @@ AC_DEFUN([LIBCFS_FUNC_DUMP_TRACE], AC_MSG_RESULT(no) ],[ ]) + AC_MSG_CHECKING([whether stacktrace_ops.warning is exist]) + LB_LINUX_TRY_COMPILE([ + struct task_struct; + struct pt_regs; + #include + ],[ + ((struct stacktrace_ops *)0)->warning(NULL, NULL); + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, [stacktrace_ops.warning is exist]) + ],[ + AC_MSG_RESULT(no) + ],[ + ]) + AC_MSG_CHECKING([dump_trace want address]) + LB_LINUX_TRY_COMPILE([ + struct task_struct; + struct pt_regs; + #include + ],[ + dump_trace(NULL, NULL, NULL, 0, NULL, NULL); + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1, + [dump_trace want address argument]) + ],[ + AC_MSG_RESULT(no) + ],[ + ]) + EXTRA_KCFLAGS="$tmp_flags" ]) ]) @@ -582,8 +443,8 @@ AC_DEFUN([LIBCFS_SEM_COUNT], LB_LINUX_TRY_COMPILE([ #include ],[ - struct semaphore s; - + struct semaphore s __attribute__ ((unused)); + atomic_read(&s.count); ],[ AC_MSG_RESULT(yes) @@ -621,7 +482,7 @@ LB_LINUX_TRY_COMPILE([ ],[ uid_t uid; - uid = current_uid(); + uid = current_uid() + sizeof(uid); ],[ AC_MSG_RESULT([yes]) AC_DEFINE(HAVE_CRED_WRAPPERS, 1, [task's cred wrappers found]) @@ -650,6 +511,25 @@ LB_LINUX_TRY_COMPILE([ ]) ]) +# LIBCFS_STRUCT_SHASH_ALG +# struct shash_alg was introduced in 2.6.29 +# +AC_DEFUN([LIBCFS_STRUCT_SHASH_ALG], +[AC_MSG_CHECKING([if kernel has struct shash_alg]) +LB_LINUX_TRY_COMPILE([ + #include + #include +],[ + struct shash_alg foo; +],[ + AC_MSG_RESULT([yes]) + AC_DEFINE(HAVE_STRUCT_SHASH_ALG, 1, [kernel has struct shash_alg]) +],[ + AC_MSG_RESULT([no]) +]) +]) + + # # LIBCFS_FUNC_UNSHARE_FS_STRUCT # @@ -685,7 +565,8 @@ AC_DEFUN([LIBCFS_HAVE_IS_COMPAT_TASK], LB_LINUX_TRY_COMPILE([ #include ],[ - int i = is_compat_task(); + int i __attribute__ ((unused)); + i = is_compat_task(); ],[ AC_MSG_RESULT([yes]) AC_DEFINE(HAVE_IS_COMPAT_TASK, 1, [is_compat_task() is available]) @@ -695,55 +576,225 @@ LB_LINUX_TRY_COMPILE([ ]) # +# 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 +],[ + ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL); +],[ + AC_MSG_RESULT([yes]) + AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, ['struct stacktrace_ops' has 'walk_stack' field]) +],[ + AC_MSG_RESULT([no]) +]) +]) + +AC_DEFUN([LIBCFS_HAVE_OOM_H], +[LB_CHECK_FILE([$LINUX/include/linux/oom.h], [ + AC_DEFINE(HAVE_LINUX_OOM_H, 1, + [kernel has include/oom.h]) +],[ + AC_MSG_RESULT([no]) +]) +]) + +# +# check set_mems_allowed +# 2.6.31 adds function set_mems_allowed in cpuset.h +# +AC_DEFUN([LIBCFS_HAVE_SET_MEMS_ALLOWED], +[AC_MSG_CHECKING([whether have set_mems_allowed()]) +LB_LINUX_TRY_COMPILE([ + #include +],[ + nodemask_t mask; + + set_mems_allowed(mask); +],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_SET_MEMS_ALLOWED, 1, [have set_mems_allowed()]) +],[ + AC_MSG_RESULT(NO) +]) +]) + + +# +# RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function +# +AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR], +[AC_MSG_CHECKING([shrinker want self pointer in handler]) +LB_LINUX_TRY_COMPILE([ + #include +],[ + struct shrinker *tmp = NULL; + tmp->shrink(tmp, 0, 0); +],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1, + [shrinker want self pointer in handler]) +],[ + AC_MSG_RESULT(no) +]) +]) + +# 2.6.18 store oom parameters in task struct. +# 2.6.32 store oom parameters in signal struct +AC_DEFUN([LIBCFS_OOMADJ_IN_SIG], +[AC_MSG_CHECKING([kernel store oom parameters in task]) +LB_LINUX_TRY_COMPILE([ + #include +],[ + ((struct signal_struct *)0)->oom_adj = 0; +],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_OOMADJ_IN_SIG, 1, + [kernel store a oom parameters in signal struct]) +],[ + AC_MSG_RESULT(no) +]) +]) + +# +# 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 +],[ + struct ctl_table ct; + ct.ctl_name = sizeof(ct); +],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1, + [ctl_table has ctl_name field]) +],[ + AC_MSG_RESULT(no) +]) +]) + +# +# LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE +# +# 2.6.34 adds __add_wait_queue_exclusive +# +AC_DEFUN([LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE], +[AC_MSG_CHECKING([if __add_wait_queue_exclusive exists]) +LB_LINUX_TRY_COMPILE([ + #include +],[ + wait_queue_head_t queue; + wait_queue_t wait; + + __add_wait_queue_exclusive(&queue, &wait); +],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE___ADD_WAIT_QUEUE_EXCLUSIVE, 1, + [__add_wait_queue_exclusive exists]) +],[ + AC_MSG_RESULT(no) +]) +]) + +# +# 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 +],[ + sk_sleep(NULL); +],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_SK_SLEEP, 1, [kernel has sk_sleep]) +],[ + AC_MSG_RESULT(no) +]) +]) + +# +# 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 +],[ + struct shrink_control tmp = {0}; + tmp.nr_to_scan = sizeof(tmp); +],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_SHRINK_CONTROL, 1, + [shrink_control is present]) +],[ + AC_MSG_RESULT(no) +]) +]) + +# # LIBCFS_PROG_LINUX # # LNet linux kernel checks # 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 +LIBCFS_U64_LONG_LONG_LINUX # 2.6.18 LIBCFS_TASKLIST_LOCK LIBCFS_HAVE_IS_COMPAT_TASK +LIBCFS_DIGEST_SETKEY_FLAGS # 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 +LC_REGISTER_SHRINKER # 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 +# 2.6.28 +LIBCFS_CPUMASK_SIZE # 2.6.29 LIBCFS_STRUCT_CRED_IN_TASK +LIBCFS_CPU_TOPOLOGY +LIBCFS_STRUCT_SHASH_ALG # 2.6.30 LIBCFS_FUNC_UNSHARE_FS_STRUCT LIBCFS_SOCK_MAP_FD_2ARG +# 2.6.31 +LIBCFS_HAVE_SET_MEMS_ALLOWED +# 2.6.32 +LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK +LC_SHRINKER_WANT_SHRINK_PTR +LIBCFS_HAVE_OOM_H +LIBCFS_OOMADJ_IN_SIG +# 2.6.33 +LIBCFS_SYSCTL_CTLNAME +# 2.6.34 +LIBCFS_ADD_WAIT_QUEUE_EXCLUSIVE +# 2.6.35 +LC_SK_SLEEP +# 2.6.40 fc15 +LC_SHRINK_CONTROL ]) # @@ -829,6 +880,30 @@ AC_CHECK_TYPE([__s64], [], [#include ]) +# check userland __u64 type +AC_MSG_CHECKING([userspace __u64 is long long type]) +tmp_flags="$CFLAGS" +CFLAGS="$CFLAGS -Werror" +AC_COMPILE_IFELSE([ + #include + #include + #include + int main(void) { + unsigned long long *data1; + __u64 *data2 = NULL; + + data1 = data2; + return 0; + } +],[ + AC_MSG_RESULT([yes]) + AC_DEFINE(HAVE_USER__U64_LONG_LONG, 1, + [__u64 is long long type]) +],[ + AC_MSG_RESULT([no]) +]) +CFLAGS="$tmp_flags" + # -------- Check for required packages --------------