AC_DEFUN([LINUX_EXPORTS_TASKLIST_LOCK], [ AC_MSG_CHECKING([for exported tasklist_lock]) AC_CACHE_VAL([ac_cv_linux_exports_tasklist_lock], [ AC_TRY_KBUILD( [ #include ], [ extern rwlock_t tasklist_lock __attribute__((weak)); read_lock(&tasklist_lock); ], ac_cv_linux_exports_tasklist_lock=yes, ac_cv_linux_exports_tasklist_lock=no)]) AC_MSG_RESULT($ac_cv_linux_exports_tasklist_lock)]) AC_DEFUN([LINUX_CONFIG_H_EXISTS], [ AC_MSG_CHECKING([for linux/config.h existance]) AC_CACHE_VAL([ac_cv_linux_config_h_exists], [ AC_TRY_KBUILD( [#include ], [return;], ac_cv_linux_config_h_exists=yes, ac_cv_linux_config_h_exists=no)]) AC_MSG_RESULT($ac_cv_linux_config_h_exists) if test "x$ac_cv_linux_config_h_exists" = "xyes"; then AC_DEFINE([CONFIG_H_EXISTS], 1, [define if linux/config.h exists]) fi]) AC_DEFUN([LINUX_COMPLETION_H_EXISTS], [ AC_MSG_CHECKING([for linux/completion.h existance]) AC_CACHE_VAL([ac_cv_linux_completion_h_exists], [ AC_TRY_KBUILD( [#include #include ], [struct completion _c; #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,8) lose #endif], ac_cv_linux_completion_h_exists=yes, ac_cv_linux_completion_h_exists=no)]) AC_MSG_RESULT($ac_cv_linux_completion_h_exists)]) AC_DEFUN([LINUX_EXPORTFS_H_EXISTS], [ AC_MSG_CHECKING([for linux/exportfs.h existence]) AC_CACHE_VAL([ac_cv_linux_exportfs_h_exists], [ AC_TRY_KBUILD( [#include ], [return;], ac_cv_linux_exportfs_h_exists=yes, ac_cv_linux_exportfs_h_exists=no)]) AC_MSG_RESULT($ac_cv_linux_exportfs_h_exists)]) AC_DEFUN([LINUX_DEFINES_FOR_EACH_PROCESS], [ AC_MSG_CHECKING([for defined for_each_process]) AC_CACHE_VAL([ac_cv_linux_defines_for_each_process], [ AC_TRY_KBUILD( [#include ], [#ifndef for_each_process #error for_each_process not defined #endif], ac_cv_linux_defines_for_each_process=yes, ac_cv_linux_defines_for_each_process=no)]) AC_MSG_RESULT($ac_cv_linux_defines_for_each_process)]) AC_DEFUN([LINUX_DEFINES_PREV_TASK], [ AC_MSG_CHECKING([for defined prev_task]) AC_CACHE_VAL([ac_cv_linux_defines_prev_task], [ AC_TRY_KBUILD( [#include ], [#ifndef prev_task #error prev_task not defined #endif], ac_cv_linux_defines_prev_task=yes, ac_cv_linux_defines_prev_task=no)]) AC_MSG_RESULT($ac_cv_linux_defines_prev_task)]) AC_DEFUN([LINUX_EXPORTS_INIT_MM], [ AC_MSG_CHECKING([for exported init_mm]) AC_CACHE_VAL([ac_cv_linux_exports_init_mm], [ AC_TRY_KBUILD( [extern struct mm_struct init_mm;], [void *address = &init_mm; printk("%p\n", address);], ac_cv_linux_exports_init_mm=yes, ac_cv_linux_exports_init_mm=no)]) AC_MSG_RESULT($ac_cv_linux_exports_init_mm)]) AC_DEFUN([LINUX_EXPORTS_KALLSYMS_ADDRESS], [ AC_MSG_CHECKING([for exported kallsyms_address_to_symbol]) AC_CACHE_VAL([ac_cv_linux_exports_kallsyms_address], [ AC_TRY_KBUILD( [#include ], [#ifndef __ver_kallsyms_address_to_symbol #error kallsyms_address_to_symbol not exported #endif], ac_cv_linux_exports_kallsyms_address=yes, ac_cv_linux_exports_kallsyms_address=no)]) AC_MSG_RESULT($ac_cv_linux_exports_kallsyms_address)]) AC_DEFUN([LINUX_EXPORTS_KALLSYMS_SYMBOL], [ AC_MSG_CHECKING([for exported kallsyms_symbol_to_address]) AC_CACHE_VAL([ac_cv_linux_exports_kallsyms_symbol], [ AC_TRY_KBUILD( [#include ], [#ifndef __ver_kallsyms_symbol_to_address #error kallsyms_symbol_to_address not exported #endif], ac_cv_linux_exports_kallsyms_symbol=yes, ac_cv_linux_exports_kallsyms_symbol=no)]) AC_MSG_RESULT($ac_cv_linux_exports_kallsyms_symbol)]) AC_DEFUN([LINUX_EXPORTS_SYS_CALL_TABLE], [ AC_MSG_CHECKING([for exported sys_call_table]) AC_CACHE_VAL([ac_cv_linux_exports_sys_call_table], [ AC_TRY_KBUILD( [#include ], [#ifndef __ver_sys_call_table #error sys_call_table not exported #endif], ac_cv_linux_exports_sys_call_table=yes, ac_cv_linux_exports_sys_call_table=no)]) AC_MSG_RESULT($ac_cv_linux_exports_sys_call_table)]) AC_DEFUN([LINUX_EXPORTS_IA32_SYS_CALL_TABLE], [ AC_MSG_CHECKING([for exported ia32_sys_call_table]) AC_CACHE_VAL([ac_cv_linux_exports_ia32_sys_call_table], [ AC_TRY_KBUILD( [#include ], [#ifndef __ver_ia32_sys_call_table #error ia32_sys_call_table not exported #endif], ac_cv_linux_exports_ia32_sys_call_table=yes, ac_cv_linux_exports_ia32_sys_call_table=no)]) AC_MSG_RESULT($ac_cv_linux_exports_ia32_sys_call_table)]) AC_DEFUN([LINUX_EXPORTS_SYS_CHDIR], [ AC_MSG_CHECKING([for exported sys_chdir]) AC_CACHE_VAL([ac_cv_linux_exports_sys_chdir], [ AC_TRY_KBUILD( [extern asmlinkage long sys_chdir(void) __attribute__((weak));], [void *address = &sys_chdir; printk("%p\n", address);], ac_cv_linux_exports_sys_chdir=yes, ac_cv_linux_exports_sys_chdir=no)]) AC_MSG_RESULT($ac_cv_linux_exports_sys_chdir)]) AC_DEFUN([LINUX_EXPORTS_SYS_CLOSE], [ AC_MSG_CHECKING([for exported sys_close]) AC_CACHE_VAL([ac_cv_linux_exports_sys_close], [ AC_TRY_KBUILD( [extern asmlinkage long sys_close(void) __attribute__((weak));], [void *address = &sys_close; printk("%p\n", address);], ac_cv_linux_exports_sys_close=yes, ac_cv_linux_exports_sys_close=no)]) AC_MSG_RESULT($ac_cv_linux_exports_sys_close)]) AC_DEFUN([LINUX_EXPORTS_SYS_OPEN], [ AC_MSG_CHECKING([for exported sys_open]) AC_CACHE_VAL([ac_cv_linux_exports_sys_open], [ AC_TRY_KBUILD( [extern asmlinkage long sys_open(void) __attribute__((weak));], [void *address = &sys_open; printk("%p\n", address);], ac_cv_linux_exports_sys_open=yes, ac_cv_linux_exports_sys_open=no)]) AC_MSG_RESULT($ac_cv_linux_exports_sys_open)]) AC_DEFUN([LINUX_EXPORTS_SYS_WAIT4], [ AC_MSG_CHECKING([for exported sys_wait4]) AC_CACHE_VAL([ac_cv_linux_exports_sys_wait4], [ AC_TRY_KBUILD( [extern asmlinkage long sys_wait4(void) __attribute__((weak));], [void *address = &sys_wait4; printk("%p\n", address);], ac_cv_linux_exports_sys_wait4=yes, ac_cv_linux_exports_sys_wait4=no)]) AC_MSG_RESULT($ac_cv_linux_exports_sys_wait4)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_BLKSIZE], [ AC_MSG_CHECKING([for i_blksize in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_blksize], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.i_blksize);], ac_cv_linux_fs_struct_inode_has_i_blksize=yes, ac_cv_linux_fs_struct_inode_has_i_blksize=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_blksize)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_BLKBITS], [ AC_MSG_CHECKING([for i_blkbits in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_blkbits], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.i_blkbits);], ac_cv_linux_fs_struct_inode_has_i_blkbits=yes, ac_cv_linux_fs_struct_inode_has_i_blkbits=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_blkbits) if test "x$ac_cv_linux_fs_struct_inode_has_i_blkbits" = "xyes"; then AC_DEFINE(STRUCT_INODE_HAS_I_BLKBITS, 1, [define if your struct inode has i_blkbits]) fi]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_CDEV], [ AC_MSG_CHECKING([for i_cdev in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_cdev], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.i_cdev);], ac_cv_linux_fs_struct_inode_has_i_cdev=yes, ac_cv_linux_fs_struct_inode_has_i_cdev=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_cdev)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_DEVICES], [ AC_MSG_CHECKING([for i_devices in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_devices], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.i_devices);], ac_cv_linux_fs_struct_inode_has_i_devices=yes, ac_cv_linux_fs_struct_inode_has_i_devices=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_devices)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_DIRTY_DATA_BUFFERS], [ AC_MSG_CHECKING([for i_dirty_data_buffers in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.i_dirty_data_buffers);], ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers=yes, ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_INOTIFY_LOCK], [ AC_MSG_CHECKING([for inotify_lock in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_inotify_lock], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.inotify_lock);], ac_cv_linux_fs_struct_inode_has_inotify_lock=yes, ac_cv_linux_fs_struct_inode_has_inotify_lock=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_inotify_lock)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_INOTIFY_SEM], [ AC_MSG_CHECKING([for inotify_sem in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_inotify_sem], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%x\n", _inode.inotify_sem);], ac_cv_linux_fs_struct_inode_has_inotify_sem=yes, ac_cv_linux_fs_struct_inode_has_inotify_sem=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_inotify_sem)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_MAPPING_OVERLOAD], [ AC_MSG_CHECKING([for i_mapping_overload in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_mapping_overload], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.i_mapping_overload);], ac_cv_linux_fs_struct_inode_has_i_mapping_overload=yes, ac_cv_linux_fs_struct_inode_has_i_mapping_overload=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_mapping_overload)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_MMAP_SHARED], [ AC_MSG_CHECKING([for i_mmap_shared in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_mmap_shared], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.i_mmap_shared);], ac_cv_linux_fs_struct_inode_has_i_mmap_shared=yes, ac_cv_linux_fs_struct_inode_has_i_mmap_shared=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_mmap_shared)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_MUTEX], [ AC_MSG_CHECKING([for i_mutex in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_mutex], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.i_mutex);], ac_cv_linux_fs_struct_inode_has_i_mutex=yes, ac_cv_linux_fs_struct_inode_has_i_mutex=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_mutex)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_SECURITY], [ AC_MSG_CHECKING([for i_security in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_security], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.i_security);], ac_cv_linux_fs_struct_inode_has_i_security=yes, ac_cv_linux_fs_struct_inode_has_i_security=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_security)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_SB_LIST], [ AC_MSG_CHECKING([for i_sb_list in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_sb_list], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.i_sb_list);], ac_cv_linux_fs_struct_inode_has_i_sb_list=yes, ac_cv_linux_fs_struct_inode_has_i_sb_list=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_sb_list)]) AC_DEFUN([LINUX_RECALC_SIGPENDING_ARG_TYPE], [ AC_MSG_CHECKING([for recalc_sigpending arg type]) AC_CACHE_VAL([ac_cv_linux_func_recalc_sigpending_takes_void], [ AC_TRY_KBUILD( [#include ], [recalc_sigpending();], ac_cv_linux_func_recalc_sigpending_takes_void=yes, ac_cv_linux_func_recalc_sigpending_takes_void=no)]) AC_MSG_RESULT($ac_cv_linux_func_recalc_sigpending_takes_void)]) AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_PARENT], [ AC_MSG_CHECKING([for parent in struct task_struct]) AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_parent], [ AC_TRY_KBUILD( [#include ], [struct task_struct _tsk; printk("%d\n", _tsk.parent);], ac_cv_linux_sched_struct_task_struct_has_parent=yes, ac_cv_linux_sched_struct_task_struct_has_parent=no)]) AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_parent)]) AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_TGID], [ AC_MSG_CHECKING([for tgid in struct task_struct]) AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_tgid], [ AC_TRY_KBUILD( [#include ], [struct task_struct _tsk; printk("%d\n", _tsk.tgid);], ac_cv_linux_sched_struct_task_struct_has_tgid=yes, ac_cv_linux_sched_struct_task_struct_has_tgid=no)]) AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_tgid)]) AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_REAL_PARENT], [ AC_MSG_CHECKING([for real_parent in struct task_struct]) AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_real_parent], [ AC_TRY_KBUILD( [#include ], [struct task_struct _tsk; printk("%d\n", _tsk.real_parent);], ac_cv_linux_sched_struct_task_struct_has_real_parent=yes, ac_cv_linux_sched_struct_task_struct_has_real_parent=no)]) AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_real_parent)]) AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIG], [ AC_MSG_CHECKING([for sig in struct task_struct]) AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_sig], [ AC_TRY_KBUILD( [#include ], [struct task_struct _tsk; printk("%d\n", _tsk.sig);], ac_cv_linux_sched_struct_task_struct_has_sig=yes, ac_cv_linux_sched_struct_task_struct_has_sig=no)]) AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_sig)]) AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGMASK_LOCK], [ AC_MSG_CHECKING([for sigmask_lock in struct task_struct]) AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_sigmask_lock], [ AC_TRY_KBUILD( [#include ], [struct task_struct _tsk; printk("%d\n", _tsk.sigmask_lock);], ac_cv_linux_sched_struct_task_struct_has_sigmask_lock=yes, ac_cv_linux_sched_struct_task_struct_has_sigmask_lock=no)]) AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_sigmask_lock)]) AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGHAND], [ AC_MSG_CHECKING([for sighand in struct task_struct]) AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_sighand], [ AC_TRY_KBUILD( [#include ], [struct task_struct _tsk; printk("%d\n", _tsk.sighand);], ac_cv_linux_sched_struct_task_struct_has_sighand=yes, ac_cv_linux_sched_struct_task_struct_has_sighand=no)]) AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_sighand)]) AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_RLIM], [ AC_MSG_CHECKING([for rlim in struct task_struct]) AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_rlim], [ AC_TRY_KBUILD( [#include ], [struct task_struct _tsk; printk("%d\n", _tsk.rlim);], ac_cv_linux_sched_struct_task_struct_has_rlim=yes, ac_cv_linux_sched_struct_task_struct_has_rlim=no)]) AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_rlim)]) AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM], [ AC_MSG_CHECKING([for signal->rlim in struct task_struct]) AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_signal_rlim], [ AC_TRY_KBUILD( [#include ], [struct task_struct _tsk; printk("%d\n", _tsk.signal->rlim);], ac_cv_linux_sched_struct_task_struct_has_signal_rlim=yes, ac_cv_linux_sched_struct_task_struct_has_signal_rlim=no)]) AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_signal_rlim)]) AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_EXIT_STATE], [ AC_MSG_CHECKING([for exit_state in struct task_struct]) AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_exit_state], [ AC_TRY_KBUILD( [#include ], [struct task_struct _tsk; printk("%d\n", _tsk.exit_state);], ac_cv_linux_sched_struct_task_struct_has_exit_state=yes, ac_cv_linux_sched_struct_task_struct_has_exit_state=no)]) AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_exit_state)]) AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_THREAD_INFO], [ AC_MSG_CHECKING([for thread_info in struct task_struct]) AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_thread_info], [ AC_TRY_KBUILD( [#include ], [struct task_struct _tsk; printk("%d\n", _tsk.thread_info);], ac_cv_linux_sched_struct_task_struct_has_thread_info=yes, ac_cv_linux_sched_struct_task_struct_has_thread_info=no)]) AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_thread_info)]) AC_DEFUN([LINUX_FS_STRUCT_SUPER_HAS_ALLOC_INODE], [ AC_MSG_CHECKING([for alloc_inode in struct super_operations]) AC_CACHE_VAL([ac_cv_linux_fs_struct_super_has_alloc_inode], [ AC_TRY_KBUILD( [#include ], [struct super_operations _super; printk("%p\n", _super.alloc_inode);], ac_cv_linux_fs_struct_super_has_alloc_inode=yes, ac_cv_linux_fs_struct_super_has_alloc_inode=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_super_has_alloc_inode)]) AC_DEFUN([LINUX_KERNEL_POSIX_LOCK_FILE_WAIT_ARG], [ AC_MSG_CHECKING([for 3rd argument in posix_lock_file found in new kernels]) AC_CACHE_VAL([ac_cv_linux_kernel_posix_lock_file_wait_arg], [ AC_TRY_KBUILD( [#include ], [posix_lock_file(0,0,0);], ac_cv_linux_kernel_posix_lock_file_wait_arg=yes, ac_cv_linux_kernel_posix_lock_file_wait_arg=no)]) AC_MSG_RESULT($ac_cv_linux_kernel_posix_lock_file_wait_arg)]) AC_DEFUN([LINUX_KERNEL_SOCK_CREATE], [ AC_MSG_CHECKING([for 5th argument in sock_create found in some SELinux kernels]) AC_CACHE_VAL([ac_cv_linux_kernel_sock_create_v], [ AC_TRY_KBUILD( [#include ], [sock_create(0,0,0,0,0);], ac_cv_linux_kernel_sock_create_v=yes, ac_cv_linux_kernel_sock_create_v=no)]) AC_MSG_RESULT($ac_cv_linux_kernel_sock_create_v)]) AC_DEFUN([LINUX_KERNEL_PAGE_FOLLOW_LINK], [ AC_MSG_CHECKING([for page_follow_link_light vs page_follow_link]) AC_CACHE_VAL([ac_cv_linux_kernel_page_follow_link], [ save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS -Werror-implicit-function-declaration" AC_TRY_KBUILD( [#include ], [page_follow_link(0,0);], ac_cv_linux_kernel_page_follow_link=yes, ac_cv_linux_kernel_page_follow_link=no) CPPFLAGS="$save_CPPFLAGS"]) AC_MSG_RESULT($ac_cv_linux_kernel_page_follow_link)]) AC_DEFUN([LINUX_KERNEL_HLIST_UNHASHED], [ AC_MSG_CHECKING([for hlist_unhashed]) AC_CACHE_VAL([ac_cv_linux_kernel_hlist_unhashed], [ save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS -Werror-implicit-function-declaration" AC_TRY_KBUILD( [#include ], [hlist_unhashed(0);], ac_cv_linux_kernel_hlist_unhashed=yes, ac_cv_linux_kernel_hlist_unhashed=no) CPPFLAGS="$save_CPPFLAGS"]) AC_MSG_RESULT($ac_cv_linux_kernel_hlist_unhashed)]) AC_DEFUN([LINUX_FS_STRUCT_ADDRESS_SPACE_HAS_GFP_MASK], [ AC_MSG_CHECKING([for gfp_mask in struct address_space]) AC_CACHE_VAL([ac_cv_linux_fs_struct_address_space_has_gfp_mask], [ AC_TRY_KBUILD( [#include ], [struct address_space _a; printk("%d\n", _a.gfp_mask);], ac_cv_linux_fs_struct_address_space_has_gfp_mask=yes, ac_cv_linux_fs_struct_address_space_has_gfp_mask=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_address_space_has_gfp_mask)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_BYTES], [ AC_MSG_CHECKING([for i_bytes in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_bytes], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; printk("%d\n", _inode.i_bytes);], ac_cv_linux_fs_struct_inode_has_i_bytes=yes, ac_cv_linux_fs_struct_inode_has_i_bytes=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_bytes)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_ALLOC_SEM], [ AC_MSG_CHECKING([for i_alloc_sem in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_alloc_sem], [ AC_TRY_KBUILD( [#include ], [struct inode _i; printk("%x\n", _i.i_alloc_sem);], ac_cv_linux_fs_struct_inode_has_i_alloc_sem=yes, ac_cv_linux_fs_struct_inode_has_i_alloc_sem=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_alloc_sem)]) AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_TRUNCATE_SEM], [ AC_MSG_CHECKING([for i_truncate_sem in struct inode]) AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_truncate_sem], [ AC_TRY_KBUILD( [#include ], [struct inode _i; printk("%x\n", _i.i_truncate_sem);], ac_cv_linux_fs_struct_inode_has_i_truncate_sem=yes, ac_cv_linux_fs_struct_inode_has_i_truncate_sem=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_truncate_sem)]) AC_DEFUN([LINUX_FS_STRUCT_ADDRESS_SPACE_HAS_PAGE_LOCK], [ AC_MSG_CHECKING([for page_lock in struct address_space]) AC_CACHE_VAL([ac_cv_linux_fs_struct_address_space_has_page_lock], [ AC_TRY_KBUILD( [#include ], [struct address_space _a_s; printk("%x\n", _a_s.page_lock);], ac_cv_linux_fs_struct_address_space_has_page_lock=yes, ac_cv_linux_fs_struct_address_space_has_page_lock=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_address_space_has_page_lock)]) AC_DEFUN([LINUX_INODE_SETATTR_RETURN_TYPE], [ AC_MSG_CHECKING([for inode_setattr return type]) AC_CACHE_VAL([ac_cv_linux_func_inode_setattr_returns_int], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; struct iattr _iattr; int i; i = inode_setattr(&_inode, &_iattr);], ac_cv_linux_func_inode_setattr_returns_int=yes, ac_cv_linux_func_inode_setattr_returns_int=no)]) AC_MSG_RESULT($ac_cv_linux_func_inode_setattr_returns_int)]) AC_DEFUN([LINUX_WRITE_INODE_RETURN_TYPE], [ AC_MSG_CHECKING([for write_inode return type]) AC_CACHE_VAL([ac_cv_linux_func_write_inode_returns_int], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; struct super_operations _sops; int i; i = _sops.write_inode(&_inode, 0);], ac_cv_linux_func_write_inode_returns_int=yes, ac_cv_linux_func_write_inode_returns_int=no)]) AC_MSG_RESULT($ac_cv_linux_func_write_inode_returns_int)]) AC_DEFUN([LINUX_AOP_WRITEBACK_CONTROL], [ AC_MSG_CHECKING([whether address_space_operations.writepage takes a writeback_control]) AC_CACHE_VAL([ac_cv_linux_func_a_writepage_takes_writeback_control], [ AC_TRY_KBUILD( [#include #include #include ], [struct address_space_operations _aops; struct page _page; struct writeback_control _writeback_control; (void)_aops.writepage(&_page, &_writeback_control);], ac_cv_linux_func_a_writepage_takes_writeback_control=yes, ac_cv_linux_func_a_writepage_takes_writeback_control=no)]) AC_MSG_RESULT($ac_cv_linux_func_a_writepage_takes_writeback_control)]) AC_DEFUN([LINUX_REFRIGERATOR], [ AC_MSG_CHECKING([whether refrigerator takes PF_FREEZE]) AC_CACHE_VAL([ac_cv_linux_func_refrigerator_takes_pf_freeze], [ AC_TRY_KBUILD( [#include #ifdef FREEZER_H_EXISTS #include #endif], [refrigerator(PF_FREEZE);], ac_cv_linux_func_refrigerator_takes_pf_freeze=yes, ac_cv_linux_func_refrigerator_takes_pf_freeze=no)]) AC_MSG_RESULT($ac_cv_linux_func_refrigerator_takes_pf_freeze)]) AC_DEFUN([LINUX_IOP_I_CREATE_TAKES_NAMEIDATA], [ AC_MSG_CHECKING([whether inode_operations.create takes a nameidata]) AC_CACHE_VAL([ac_cv_linux_func_i_create_takes_nameidata], [ AC_TRY_KBUILD( [#include #include ], [struct inode _inode; struct dentry _dentry; struct nameidata _nameidata; (void)_inode.i_op->create(&_inode, &_dentry, 0, &_nameidata);], ac_cv_linux_func_i_create_takes_nameidata=yes, ac_cv_linux_func_i_create_takes_nameidata=no)]) AC_MSG_RESULT($ac_cv_linux_func_i_create_takes_nameidata)]) AC_DEFUN([LINUX_IOP_I_LOOKUP_TAKES_NAMEIDATA], [ AC_MSG_CHECKING([whether inode_operations.lookup takes a nameidata]) AC_CACHE_VAL([ac_cv_linux_func_i_lookup_takes_nameidata], [ AC_TRY_KBUILD( [#include #include ], [struct inode _inode; struct dentry _dentry; struct nameidata _nameidata; (void)_inode.i_op->lookup(&_inode, &_dentry, &_nameidata);], ac_cv_linux_func_i_lookup_takes_nameidata=yes, ac_cv_linux_func_i_lookup_takes_nameidata=no)]) AC_MSG_RESULT($ac_cv_linux_func_i_lookup_takes_nameidata)]) AC_DEFUN([LINUX_IOP_I_PERMISSION_TAKES_NAMEIDATA], [ AC_MSG_CHECKING([whether inode_operations.permission takes a nameidata]) AC_CACHE_VAL([ac_cv_linux_func_i_permission_takes_nameidata], [ AC_TRY_KBUILD( [#include #include ], [struct inode _inode; struct dentry _dentry; struct nameidata _nameidata; (void)_inode.i_op->permission(&_inode, 0, &_nameidata);], ac_cv_linux_func_i_permission_takes_nameidata=yes, ac_cv_linux_func_i_permission_takes_nameidata=no)]) AC_MSG_RESULT($ac_cv_linux_func_i_permission_takes_nameidata)]) AC_DEFUN([LINUX_IOP_I_PUT_LINK_TAKES_COOKIE], [ AC_MSG_CHECKING([whether inode_operations.put_link takes an opaque cookie]) AC_CACHE_VAL([ac_cv_linux_func_i_put_link_takes_cookie], [ AC_TRY_KBUILD( [#include #include ], [struct inode _inode; struct dentry _dentry; struct nameidata _nameidata; void *cookie; (void)_inode.i_op->put_link(&_dentry, &_nameidata, cookie);], ac_cv_linux_func_i_put_link_takes_cookie=yes, ac_cv_linux_func_i_put_link_takes_cookie=no)]) AC_MSG_RESULT($ac_cv_linux_func_i_put_link_takes_cookie)]) AC_DEFUN([LINUX_DOP_D_REVALIDATE_TAKES_NAMEIDATA], [ AC_MSG_CHECKING([whether dentry_operations.d_revalidate takes a nameidata]) AC_CACHE_VAL([ac_cv_linux_func_d_revalidate_takes_nameidata], [ AC_TRY_KBUILD( [#include #include ], [struct dentry _dentry; struct nameidata _nameidata; (void)_dentry.d_op->d_revalidate(&_dentry, &_nameidata);], ac_cv_linux_func_d_revalidate_takes_nameidata=yes, ac_cv_linux_func_d_revalidate_takes_nameidata=no)]) AC_MSG_RESULT($ac_cv_linux_func_d_revalidate_takes_nameidata)]) AC_DEFUN([LINUX_GET_SB_HAS_STRUCT_VFSMOUNT], [ AC_MSG_CHECKING([for struct vfsmount * in get_sb_nodev()]) AC_CACHE_VAL([ac_cv_linux_get_sb_has_struct_vfsmount], [ AC_TRY_KBUILD( [#include ], [get_sb_nodev(0,0,0,0,0);], ac_cv_linux_get_sb_has_struct_vfsmount=yes, ac_cv_linux_get_sb_has_struct_vfsmount=no)]) AC_MSG_RESULT($ac_cv_linux_get_sb_has_struct_vfsmount)]) AC_DEFUN([LINUX_STATFS_TAKES_DENTRY], [ AC_MSG_CHECKING([for dentry in statfs]) AC_CACHE_VAL([ac_cv_linux_statfs_takes_dentry], [ AC_TRY_KBUILD( [#include #include ], [ extern int vfs_statfs(struct dentry *, struct kstatfs *); ], ac_cv_linux_statfs_takes_dentry=yes, ac_cv_linux_statfs_takes_dentry=no)]) AC_MSG_RESULT($ac_cv_linux_statfs_takes_dentry)]) AC_DEFUN([LINUX_KEY_TYPE_H_EXISTS], [ AC_MSG_CHECKING([for linux/key-type.h existance]) AC_CACHE_VAL([ac_cv_linux_key_type_h_exists], [ AC_TRY_KBUILD( [#include ], [return;], ac_cv_linux_key_type_h_exists=yes, ac_cv_linux_key_type_h_exists=no)]) AC_MSG_RESULT($ac_cv_linux_key_type_h_exists) if test "x$ac_cv_linux_key_type_h_exists" = "xyes"; then AC_DEFINE([KEY_TYPE_H_EXISTS], 1, [define if linux/key-type.h exists]) fi]) AC_DEFUN([LINUX_LINUX_KEYRING_SUPPORT], [ AC_MSG_CHECKING([for linux kernel keyring support]) AC_CACHE_VAL([ac_cv_linux_keyring_support], [ AC_TRY_KBUILD( [#include #ifdef KEY_TYPE_H_EXISTS #include #endif #include #include ], [#ifdef CONFIG_KEYS request_key(NULL, NULL, NULL); #if !defined(KEY_POS_VIEW) || !defined(KEY_POS_SEARCH) || !defined(KEY_POS_SETATTR) #error "Your linux/key.h does not contain KEY_POS_VIEW or KEY_POS_SEARCH or KEY_POS_SETATTR" #endif #else #error rebuild your kernel with CONFIG_KEYS #endif], ac_cv_linux_keyring_support=yes, ac_cv_linux_keyring_support=no)]) AC_MSG_RESULT($ac_cv_linux_keyring_support) if test "x$ac_cv_linux_keyring_support" = "xyes"; then AC_DEFINE([LINUX_KEYRING_SUPPORT], 1, [define if your kernel has keyring support]) fi]) AC_DEFUN([LINUX_KEY_ALLOC_NEEDS_STRUCT_TASK], [ AC_MSG_CHECKING([if key_alloc() takes a struct task *]) AC_CACHE_VAL([ac_cv_key_alloc_needs_struct_task], [ AC_TRY_KBUILD( [#include #include ], [(void) key_alloc(NULL, NULL, 0, 0, NULL, 0, 0);], ac_cv_key_alloc_needs_struct_task=yes, ac_cv_key_alloc_needs_struct_task=no)]) AC_MSG_RESULT($ac_cv_key_alloc_needs_struct_task) if test "x$ac_cv_key_alloc_needs_struct_task" = "xyes"; then AC_DEFINE([KEY_ALLOC_NEEDS_STRUCT_TASK], 1, [define if key_alloc takes a struct task *]) fi]) AC_DEFUN([LINUX_DO_SYNC_READ], [ AC_MSG_CHECKING([for linux do_sync_read()]) AC_CACHE_VAL([ac_cv_linux_do_sync_read], [ save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS -Werror-implicit-function-declaration" AC_TRY_KBUILD( [#include ], [do_sync_read(NULL, NULL, 0, NULL);], ac_cv_linux_do_sync_read=yes, ac_cv_linux_do_sync_read=no) CPPFLAGS="$save_CPPFLAGS"]) AC_MSG_RESULT($ac_cv_linux_do_sync_read) if test "x$ac_cv_linux_do_sync_read" = "xyes"; then AC_DEFINE([DO_SYNC_READ], 1, [define if your kernel has do_sync_read()]) fi]) AC_DEFUN([LINUX_GENERIC_FILE_AIO_READ], [ AC_MSG_CHECKING([for linux generic_file_aio_read()]) AC_CACHE_VAL([ac_cv_linux_generic_file_aio_read], [ save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS -Werror-implicit-function-declaration" AC_TRY_KBUILD( [#include ], [generic_file_aio_read(NULL, NULL, 0, 0);], ac_cv_linux_generic_file_aio_read=yes, ac_cv_linux_generic_file_aio_read=no) CPPFLAGS="$save_CPPFLAGS"]) AC_MSG_RESULT($ac_cv_linux_generic_file_aio_read) if test "x$ac_cv_linux_generic_file_aio_read" = "xyes"; then AC_DEFINE([GENERIC_FILE_AIO_READ], 1, [define if your kernel has generic_file_aio_read()]) fi]) AC_DEFUN([LINUX_FREEZER_H_EXISTS], [ AC_MSG_CHECKING([for linux/freezer.h existance]) AC_CACHE_VAL([ac_cv_linux_freezer_h_exists], [ AC_TRY_KBUILD( [#include ], [return;], ac_cv_linux_freezer_h_exists=yes, ac_cv_linux_freezer_h_exists=no)]) AC_MSG_RESULT($ac_cv_linux_freezer_h_exists) if test "x$ac_cv_linux_freezer_h_exists" = "xyes"; then AC_DEFINE([FREEZER_H_EXISTS], 1, [define if linux/freezer.h exists]) fi]) AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_TODO], [ AC_MSG_CHECKING([for todo in struct task_struct]) AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_todo], [ AC_TRY_KBUILD( [#include ], [struct task_struct _tsk; printk("%d\n", _tsk.todo);], ac_cv_linux_sched_struct_task_struct_has_todo=yes, ac_cv_linux_sched_struct_task_struct_has_todo=no)]) AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_todo)]) AC_DEFUN([LINUX_INIT_WORK_HAS_DATA], [ AC_MSG_CHECKING([whether INIT_WORK has a _data argument]) AC_CACHE_VAL([ac_cv_linux_init_work_has_data], [ AC_TRY_KBUILD( [#include #include ], [ void f(struct work_struct *w) {} struct work_struct *w; int *i; INIT_WORK(w,f,i);], ac_cv_linux_init_work_has_data=yes, ac_cv_linux_init_work_has_data=no)]) AC_MSG_RESULT($ac_cv_linux_init_work_has_data)]) AC_DEFUN([LINUX_FS_STRUCT_FOP_HAS_FLOCK], [ AC_MSG_CHECKING([for flock in struct file_operations]) AC_CACHE_VAL([ac_cv_linux_fs_struct_fop_has_flock], [ AC_TRY_KBUILD( [#include ], [struct file_operations _fop; _fop.flock(NULL, 0, NULL);], ac_cv_linux_fs_struct_fop_has_flock=yes, ac_cv_linux_fs_struct_fop_has_flock=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_fop_has_flock)]) AC_DEFUN([LINUX_REGISTER_SYSCTL_TABLE_NOFLAG], [ AC_MSG_CHECKING([whether register_sysctl_table has an insert_at_head flag argument]) AC_CACHE_VAL([ac_cv_linux_register_sysctl_table_noflag], [ AC_TRY_KBUILD( [#include ], [ctl_table *t; register_sysctl_table (t);], ac_cv_linux_register_sysctl_table_noflag=yes, ac_cv_linux_register_sysctl_table_noflag=no)]) AC_MSG_RESULT($ac_cv_linux_register_sysctl_table_noflag)]) AC_DEFUN([LINUX_FOP_F_FLUSH_TAKES_FL_OWNER_T], [ AC_MSG_CHECKING([whether file_operations.flush takes a fl_owner_t]) AC_CACHE_VAL([ac_cv_linux_func_f_flush_takes_fl_owner_t], [ AC_TRY_KBUILD( [#include ], [struct inode _inode; struct file _file; fl_owner_t id; (void)_inode.i_fop->flush(&_file, &id);], ac_cv_linux_func_f_flush_takes_fl_owner_t=yes, ac_cv_linux_func_f_flush_takes_fl_owner_t=no)]) AC_MSG_RESULT($ac_cv_linux_func_f_flush_takes_fl_owner_t)]) AC_DEFUN([LINUX_HAVE_KMEM_CACHE_T], [ AC_MSG_CHECKING([whether kmem_cache_t exists]) AC_CACHE_VAL([ac_cv_linux_have_kmem_cache_t], [ AC_TRY_KBUILD( [#include ], [kmem_cache_t *k;], ac_cv_linux_have_kmem_cache_t=yes, ac_cv_linux_have_kmem_cache_t=no)]) AC_MSG_RESULT($ac_cv_linux_have_kmem_cache_t)]) AC_DEFUN([LINUX_KMEM_CACHE_CREATE_TAKES_DTOR], [ AC_MSG_CHECKING([whether kmem_cache_create takes a destructor argument]) AC_CACHE_VAL([ac_cv_linux_kmem_cache_create_takes_dtor], [ AC_TRY_KBUILD( [#include ], [kmem_cache_create(NULL, 0, 0, 0, NULL, NULL);], ac_cv_linux_kmem_cache_create_takes_dtor=yes, ac_cv_linux_kmem_cache_create_takes_dtor=no)]) AC_MSG_RESULT($ac_cv_linux_kmem_cache_create_takes_dtor)]) AC_DEFUN([LINUX_FS_STRUCT_FOP_HAS_SENDFILE], [ AC_MSG_CHECKING([for sendfile in struct file_operations]) AC_CACHE_VAL([ac_cv_linux_fs_struct_fop_has_sendfile], [ AC_TRY_KBUILD( [#include ], [struct file_operations _fop; _fop.sendfile(NULL, NULL, 0, 0, NULL);], ac_cv_linux_fs_struct_fop_has_sendfile=yes, ac_cv_linux_fs_struct_fop_has_sendfile=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_fop_has_sendfile)]) AC_DEFUN([LINUX_HAVE_SVC_ADDR_IN], [ AC_MSG_CHECKING([whether svc_addr_in exists]) AC_CACHE_VAL([ac_cv_linux_have_svc_addr_in], [ AC_TRY_KBUILD( [#include ], [svc_addr_in(NULL);], ac_cv_linux_have_svc_addr_in=yes, ac_cv_linux_have_svc_addr_in=no)]) AC_MSG_RESULT($ac_cv_linux_have_svc_addr_in)]) AC_DEFUN([LINUX_FS_STRUCT_FOP_HAS_SPLICE], [ AC_MSG_CHECKING([for splice_write and splice_read in struct file_operations]) AC_CACHE_VAL([ac_cv_linux_fs_struct_fop_has_splice], [ AC_TRY_KBUILD( [#include ], [struct file_operations _fop; _fop.splice_write(NULL, NULL, NULL, 0, 0); _fop.splice_read(NULL, NULL, NULL, 0, 0);], ac_cv_linux_fs_struct_fop_has_splice=yes, ac_cv_linux_fs_struct_fop_has_splice=no)]) AC_MSG_RESULT($ac_cv_linux_fs_struct_fop_has_splice)]) AC_DEFUN([LINUX_HAVE_CURRENT_KERNEL_TIME], [ AC_MSG_CHECKING([for current_kernel_time()]) AC_CACHE_VAL([ac_cv_linux_have_current_kernel_time], [ AC_TRY_KBUILD( [#include ], [struct timespec s = current_kernel_time();], ac_cv_linux_have_current_kernel_time=yes, ac_cv_linux_have_current_kernel_time=no)]) AC_MSG_RESULT($ac_cv_linux_have_current_kernel_time)]) AC_DEFUN([LINUX_KMEM_CACHE_INIT], [ AC_MSG_CHECKING([for new kmem_cache init function parameters]) AC_CACHE_VAL([ac_cv_linux_kmem_cache_init], [ AC_TRY_KBUILD( [#include ], [extern struct kmem_cache *kmem_cache_create(const char *, size_t, size_t, unsigned long, void (*)(struct kmem_cache *, void *)); return;], ac_cv_linux_kmem_cache_init=yes, ac_cv_linux_kmem_cache_init=no)]) AC_MSG_RESULT($ac_cv_linux_kmem_cache_init)]) AC_DEFUN([LINUX_SYSCTL_TABLE_CHECKING], [ AC_MSG_CHECKING([for sysctl table checking]) AC_CACHE_VAL([ac_cv_linux_sysctl_table_checking], [ AC_TRY_KBUILD( [#include ], [ extern int sysctl_check_table(int) __attribute__((weak)); sysctl_check_table(NULL);], ac_cv_linux_sysctl_table_checking=no, ac_cv_linux_sysctl_table_checking=yes)]) AC_MSG_RESULT($ac_cv_linux_sysctl_table_checking)]) AC_DEFUN([LINUX_HAVE_IGET], [ AC_MSG_CHECKING([for linux iget()]) AC_CACHE_VAL([ac_cv_linux_have_iget], [ save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS -Werror-implicit-function-declaration" AC_TRY_KBUILD( [#include ], [iget(NULL, NULL);], ac_cv_linux_have_iget=yes, ac_cv_linux_have_iget=no) CPPFLAGS="$save_CPPFLAGS"]) AC_MSG_RESULT($ac_cv_linux_have_iget)]) AC_DEFUN([LINUX_FS_STRUCT_NAMEIDATA_HAS_PATH], [ AC_MSG_CHECKING([for path in struct nameidata]) AC_CACHE_VAL([ac_cv_linux_struct_nameidata_has_path], [ AC_TRY_KBUILD( [#include ], [struct nameidata _nd; printk("%x\n", _nd.path);], ac_cv_linux_struct_nameidata_has_path=yes, ac_cv_linux_struct_nameidata_has_path=no)]) AC_MSG_RESULT($ac_cv_linux_struct_nameidata_has_path)]) AC_DEFUN([LINUX_EXPORTS_RCU_READ_LOCK], [ AC_MSG_CHECKING([if rcu_read_lock is usable]) AC_CACHE_VAL([ac_cv_linux_exports_rcu_read_lock], [ AC_TRY_KBUILD( [#include ], [rcu_read_lock();], ac_cv_linux_exports_rcu_read_lock=yes, ac_cv_linux_exports_rcu_read_lock=no)]) AC_MSG_RESULT($ac_cv_linux_exports_rcu_read_lock) if test "x$ac_cv_linux_exports_rcu_read_lock" = "xyes"; then AC_DEFINE([EXPORTED_RCU_READ_LOCK], 1, [define if rcu_read_lock() is usable]) fi]) AC_DEFUN([LINUX_EXPORTS_FIND_TASK_BY_PID], [ AC_MSG_CHECKING([if find_task_by_pid is usable]) AC_CACHE_VAL([ac_cv_linux_exports_find_task_by_pid], [ AC_TRY_KBUILD( [#include ], [pid_t p; find_task_by_pid(p);], ac_cv_linux_exports_find_task_by_pid=yes, ac_cv_linux_exports_find_task_by_pid=no)]) AC_MSG_RESULT($ac_cv_linux_exports_find_task_by_pid) if test "x$ac_cv_linux_exports_find_task_by_pid" = "xyes"; then AC_DEFINE([EXPORTED_FIND_TASK_BY_PID], 1, [define if find_task_by_pid() is usable]) fi]) AC_DEFUN([LINUX_EXPORTS_PROC_ROOT_FS], [ AC_MSG_CHECKING([if proc_root_fs is defined and exported]) AC_CACHE_VAL([ac_cv_linux_exports_proc_root_fs], [ AC_TRY_KBUILD( [#include ], [struct proc_dir_entry *p = proc_root_fs;], ac_cv_linux_exports_proc_root_fs=yes, ac_cv_linux_exports_proc_root_fs=no)]) AC_MSG_RESULT($ac_cv_linux_exports_proc_root_fs) if test "x$ac_cv_linux_exports_proc_root_fs" = "xyes"; then AC_DEFINE([EXPORTED_PROC_ROOT_FS], 1, [define if proc_root_fs is exported]) fi]) AC_DEFUN([LINUX_D_PATH_TAKES_STRUCT_PATH], [ AC_MSG_CHECKING([if d_path() takes a struct path argument]) AC_CACHE_VAL([ac_cv_linux_d_path_takes_struct_path], [ AC_TRY_KBUILD( [#include ], [struct path *p; d_path(p, NULL, 0);], ac_cv_linux_d_path_takes_struct_path=yes, ac_cv_linux_d_path_takes_struct_path=no)]) AC_MSG_RESULT($ac_cv_linux_d_path_takes_struct_path) if test "x$ac_cv_linux_d_path_takes_struct_path" = "xyes"; then AC_DEFINE([D_PATH_TAKES_STRUCT_PATH], 1, [define if d_path() takes a struct path argument]) fi]) AC_DEFUN([LINUX_NEW_EXPORT_OPS], [ AC_MSG_CHECKING([if kernel uses new export ops]) AC_CACHE_VAL([ac_cv_linux_new_export_ops], [ AC_TRY_KBUILD( [#include ], [struct export_operations _eops; _eops.fh_to_parent(NULL, NULL, 0, 0);], ac_cv_linux_new_export_ops=yes, ac_cv_linux_new_export_ops=no)]) AC_MSG_RESULT($ac_cv_linux_new_export_ops) if test "x$ac_cv_linux_new_export_ops" = "xyes"; then AC_DEFINE([NEW_EXPORT_OPS], 1, [define if kernel uses new export ops]) fi]) AC_DEFUN([LINUX_SEMAPHORE_H_EXISTS], [ AC_MSG_CHECKING([for linux/semaphore.h existance]) AC_CACHE_VAL([ac_cv_linux_semaphore_h_exists], [ AC_TRY_KBUILD( [#include ], [return;], ac_cv_linux_semaphore_h_exists=yes, ac_cv_linux_semaphore_h_exists=no)]) AC_MSG_RESULT($ac_cv_linux_semaphore_h_exists) if test "x$ac_cv_linux_semaphore_h_exists" = "xyes"; then AC_DEFINE([LINUX_SEMAPHORE_H], 1, [define if linux/semaphore.h exists]) fi]) AC_DEFUN([LINUX_HAVE_BDI_INIT], [ AC_MSG_CHECKING([for linux bdi_init()]) AC_CACHE_VAL([ac_cv_linux_bdi_init], [ AC_TRY_KBUILD( [#include ], [bdi_init(NULL);], ac_cv_linux_bdi_init=yes, ac_cv_linux_bdi_init=no)]) AC_MSG_RESULT($ac_cv_linux_bdi_init) if test "x$ac_cv_linux_bdi_init" = "xyes"; then AC_DEFINE([HAVE_BDI_INIT], 1, [define if your kernel has a bdi_init()]) fi])