1 AC_DEFUN([LINUX_COMPLETION_H_EXISTS], [
2 AC_MSG_CHECKING([for linux/completion.h existance])
3 AC_CACHE_VAL([ac_cv_linux_completion_h_exists], [
5 [#include <linux/version.h>
6 #include <linux/completion.h>],
8 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,8)
11 ac_cv_linux_completion_h_exists=yes,
12 ac_cv_linux_completion_h_exists=no)])
13 AC_MSG_RESULT($ac_cv_linux_completion_h_exists)])
16 AC_DEFUN([LINUX_DEFINES_FOR_EACH_PROCESS], [
17 AC_MSG_CHECKING([for defined for_each_process])
18 AC_CACHE_VAL([ac_cv_linux_defines_for_each_process], [
20 [#include <linux/sched.h>],
21 [#ifndef for_each_process
22 #error for_each_process not defined
24 ac_cv_linux_defines_for_each_process=yes,
25 ac_cv_linux_defines_for_each_process=no)])
26 AC_MSG_RESULT($ac_cv_linux_defines_for_each_process)])
29 AC_DEFUN([LINUX_DEFINES_PREV_TASK], [
30 AC_MSG_CHECKING([for defined prev_task])
31 AC_CACHE_VAL([ac_cv_linux_defines_prev_task], [
33 [#include <linux/sched.h>],
35 #error prev_task not defined
37 ac_cv_linux_defines_prev_task=yes,
38 ac_cv_linux_defines_prev_task=no)])
39 AC_MSG_RESULT($ac_cv_linux_defines_prev_task)])
42 AC_DEFUN([LINUX_EXPORTS_INIT_MM], [
43 AC_MSG_CHECKING([for exported init_mm])
44 AC_CACHE_VAL([ac_cv_linux_exports_init_mm], [
46 [#include <linux/modversions.h>],
47 [#ifndef __ver_init_mm
48 #error init_mm not exported
50 ac_cv_linux_exports_init_mm=yes,
51 ac_cv_linux_exports_init_mm=no)])
52 AC_MSG_RESULT($ac_cv_linux_exports_init_mm)])
55 AC_DEFUN([LINUX_EXPORTS_KALLSYMS_ADDRESS], [
56 AC_MSG_CHECKING([for exported kallsyms_address_to_symbol])
57 AC_CACHE_VAL([ac_cv_linux_exports_kallsyms_address], [
59 [#include <linux/modversions.h>],
60 [#ifndef __ver_kallsyms_address_to_symbol
61 #error kallsyms_address_to_symbol not exported
63 ac_cv_linux_exports_kallsyms_address=yes,
64 ac_cv_linux_exports_kallsyms_address=no)])
65 AC_MSG_RESULT($ac_cv_linux_exports_kallsyms_address)])
68 AC_DEFUN([LINUX_EXPORTS_KALLSYMS_SYMBOL], [
69 AC_MSG_CHECKING([for exported kallsyms_symbol_to_address])
70 AC_CACHE_VAL([ac_cv_linux_exports_kallsyms_symbol], [
72 [#include <linux/modversions.h>],
73 [#ifndef __ver_kallsyms_symbol_to_address
74 #error kallsyms_symbol_to_address not exported
76 ac_cv_linux_exports_kallsyms_symbol=yes,
77 ac_cv_linux_exports_kallsyms_symbol=no)])
78 AC_MSG_RESULT($ac_cv_linux_exports_kallsyms_symbol)])
80 AC_DEFUN([LINUX_EXPORTS_SYS_CALL_TABLE], [
81 AC_MSG_CHECKING([for exported sys_call_table])
82 AC_CACHE_VAL([ac_cv_linux_exports_sys_call_table], [
84 [#include <linux/modversions.h>],
85 [#ifndef __ver_sys_call_table
86 #error sys_call_table not exported
88 ac_cv_linux_exports_sys_call_table=yes,
89 ac_cv_linux_exports_sys_call_table=no)])
90 AC_MSG_RESULT($ac_cv_linux_exports_sys_call_table)])
93 AC_DEFUN([LINUX_EXPORTS_IA32_SYS_CALL_TABLE], [
94 AC_MSG_CHECKING([for exported ia32_sys_call_table])
95 AC_CACHE_VAL([ac_cv_linux_exports_ia32_sys_call_table], [
97 [#include <linux/modversions.h>],
98 [#ifndef __ver_ia32_sys_call_table
99 #error ia32_sys_call_table not exported
101 ac_cv_linux_exports_ia32_sys_call_table=yes,
102 ac_cv_linux_exports_ia32_sys_call_table=no)])
103 AC_MSG_RESULT($ac_cv_linux_exports_ia32_sys_call_table)])
106 AC_DEFUN([LINUX_EXPORTS_SYS_CHDIR], [
107 AC_MSG_CHECKING([for exported sys_chdir])
108 AC_CACHE_VAL([ac_cv_linux_exports_sys_chdir], [
110 [extern asmlinkage long sys_chdir(void) __attribute__((weak));],
111 [void *address = &sys_chdir;
112 printk("%p\n", address);],
113 ac_cv_linux_exports_sys_chdir=yes,
114 ac_cv_linux_exports_sys_chdir=no)])
115 AC_MSG_RESULT($ac_cv_linux_exports_sys_chdir)])
118 AC_DEFUN([LINUX_EXPORTS_SYS_CLOSE], [
119 AC_MSG_CHECKING([for exported sys_close])
120 AC_CACHE_VAL([ac_cv_linux_exports_sys_close], [
122 [extern asmlinkage long sys_close(void) __attribute__((weak));],
123 [void *address = &sys_close;
124 printk("%p\n", address);],
125 ac_cv_linux_exports_sys_close=yes,
126 ac_cv_linux_exports_sys_close=no)])
127 AC_MSG_RESULT($ac_cv_linux_exports_sys_close)])
130 AC_DEFUN([LINUX_EXPORTS_SYS_OPEN], [
131 AC_MSG_CHECKING([for exported sys_open])
132 AC_CACHE_VAL([ac_cv_linux_exports_sys_open], [
134 [extern asmlinkage long sys_open(void) __attribute__((weak));],
135 [void *address = &sys_open;
136 printk("%p\n", address);],
137 ac_cv_linux_exports_sys_open=yes,
138 ac_cv_linux_exports_sys_open=no)])
139 AC_MSG_RESULT($ac_cv_linux_exports_sys_open)])
142 AC_DEFUN([LINUX_EXPORTS_SYS_WAIT4], [
143 AC_MSG_CHECKING([for exported sys_wait4])
144 AC_CACHE_VAL([ac_cv_linux_exports_sys_wait4], [
146 [extern asmlinkage long sys_wait4(void) __attribute__((weak));],
147 [void *address = &sys_wait4;
148 printk("%p\n", address);],
149 ac_cv_linux_exports_sys_wait4=yes,
150 ac_cv_linux_exports_sys_wait4=no)])
151 AC_MSG_RESULT($ac_cv_linux_exports_sys_wait4)])
154 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_BLKSIZE], [
155 AC_MSG_CHECKING([for i_blksize in struct inode])
156 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_blksize], [
158 [#include <linux/fs.h>],
159 [struct inode _inode;
160 printk("%d\n", _inode.i_blksize);],
161 ac_cv_linux_fs_struct_inode_has_i_blksize=yes,
162 ac_cv_linux_fs_struct_inode_has_i_blksize=no)])
163 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_blksize)])
165 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_CDEV], [
166 AC_MSG_CHECKING([for i_cdev in struct inode])
167 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_cdev], [
169 [#include <linux/fs.h>],
170 [struct inode _inode;
171 printk("%d\n", _inode.i_cdev);],
172 ac_cv_linux_fs_struct_inode_has_i_cdev=yes,
173 ac_cv_linux_fs_struct_inode_has_i_cdev=no)])
174 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_cdev)])
177 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_DEVICES], [
178 AC_MSG_CHECKING([for i_devices in struct inode])
179 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_devices], [
181 [#include <linux/fs.h>],
182 [struct inode _inode;
183 printk("%d\n", _inode.i_devices);],
184 ac_cv_linux_fs_struct_inode_has_i_devices=yes,
185 ac_cv_linux_fs_struct_inode_has_i_devices=no)])
186 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_devices)])
189 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_DIRTY_DATA_BUFFERS], [
190 AC_MSG_CHECKING([for i_dirty_data_buffers in struct inode])
191 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers], [
193 [#include <linux/fs.h>],
194 [struct inode _inode;
195 printk("%d\n", _inode.i_dirty_data_buffers);],
196 ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers=yes,
197 ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers=no)])
198 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers)])
201 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_INOTIFY_LOCK], [
202 AC_MSG_CHECKING([for inotify_lock in struct inode])
203 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_inotify_lock], [
205 [#include <linux/fs.h>],
206 [struct inode _inode;
207 printk("%d\n", _inode.inotify_lock);],
208 ac_cv_linux_fs_struct_inode_has_inotify_lock=yes,
209 ac_cv_linux_fs_struct_inode_has_inotify_lock=no)])
210 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_inotify_lock)])
212 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_INOTIFY_SEM], [
213 AC_MSG_CHECKING([for inotify_sem in struct inode])
214 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_inotify_sem], [
216 [#include <linux/fs.h>],
217 [struct inode _inode;
218 printk("%x\n", _inode.inotify_sem);],
219 ac_cv_linux_fs_struct_inode_has_inotify_sem=yes,
220 ac_cv_linux_fs_struct_inode_has_inotify_sem=no)])
221 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_inotify_sem)])
224 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_MAPPING_OVERLOAD], [
225 AC_MSG_CHECKING([for i_mapping_overload in struct inode])
226 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_mapping_overload], [
228 [#include <linux/fs.h>],
229 [struct inode _inode;
230 printk("%d\n", _inode.i_mapping_overload);],
231 ac_cv_linux_fs_struct_inode_has_i_mapping_overload=yes,
232 ac_cv_linux_fs_struct_inode_has_i_mapping_overload=no)])
233 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_mapping_overload)])
236 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_MMAP_SHARED], [
237 AC_MSG_CHECKING([for i_mmap_shared in struct inode])
238 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_mmap_shared], [
240 [#include <linux/fs.h>],
241 [struct inode _inode;
242 printk("%d\n", _inode.i_mmap_shared);],
243 ac_cv_linux_fs_struct_inode_has_i_mmap_shared=yes,
244 ac_cv_linux_fs_struct_inode_has_i_mmap_shared=no)])
245 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_mmap_shared)])
248 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_MUTEX], [
249 AC_MSG_CHECKING([for i_mutex in struct inode])
250 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_mutex], [
252 [#include <linux/fs.h>],
253 [struct inode _inode;
254 printk("%d\n", _inode.i_mutex);],
255 ac_cv_linux_fs_struct_inode_has_i_mutex=yes,
256 ac_cv_linux_fs_struct_inode_has_i_mutex=no)])
257 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_mutex)])
260 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_SECURITY], [
261 AC_MSG_CHECKING([for i_security in struct inode])
262 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_security], [
264 [#include <linux/fs.h>],
265 [struct inode _inode;
266 printk("%d\n", _inode.i_security);],
267 ac_cv_linux_fs_struct_inode_has_i_security=yes,
268 ac_cv_linux_fs_struct_inode_has_i_security=no)])
269 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_security)])
272 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_SB_LIST], [
273 AC_MSG_CHECKING([for i_sb_list in struct inode])
274 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_sb_list], [
276 [#include <linux/fs.h>],
277 [struct inode _inode;
278 printk("%d\n", _inode.i_sb_list);],
279 ac_cv_linux_fs_struct_inode_has_i_sb_list=yes,
280 ac_cv_linux_fs_struct_inode_has_i_sb_list=no)])
281 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_sb_list)])
284 AC_DEFUN([LINUX_RECALC_SIGPENDING_ARG_TYPE], [
285 AC_MSG_CHECKING([for recalc_sigpending arg type])
286 AC_CACHE_VAL([ac_cv_linux_func_recalc_sigpending_takes_void], [
288 [#include <linux/sched.h>],
289 [recalc_sigpending();],
290 ac_cv_linux_func_recalc_sigpending_takes_void=yes,
291 ac_cv_linux_func_recalc_sigpending_takes_void=no)])
292 AC_MSG_RESULT($ac_cv_linux_func_recalc_sigpending_takes_void)])
295 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_PARENT], [
296 AC_MSG_CHECKING([for parent in struct task_struct])
297 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_parent], [
299 [#include <linux/sched.h>],
300 [struct task_struct _tsk;
301 printk("%d\n", _tsk.parent);],
302 ac_cv_linux_sched_struct_task_struct_has_parent=yes,
303 ac_cv_linux_sched_struct_task_struct_has_parent=no)])
304 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_parent)])
307 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_REAL_PARENT], [
308 AC_MSG_CHECKING([for real_parent in struct task_struct])
309 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_real_parent], [
311 [#include <linux/sched.h>],
312 [struct task_struct _tsk;
313 printk("%d\n", _tsk.real_parent);],
314 ac_cv_linux_sched_struct_task_struct_has_real_parent=yes,
315 ac_cv_linux_sched_struct_task_struct_has_real_parent=no)])
316 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_real_parent)])
319 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIG], [
320 AC_MSG_CHECKING([for sig in struct task_struct])
321 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_sig], [
323 [#include <linux/sched.h>],
324 [struct task_struct _tsk;
325 printk("%d\n", _tsk.sig);],
326 ac_cv_linux_sched_struct_task_struct_has_sig=yes,
327 ac_cv_linux_sched_struct_task_struct_has_sig=no)])
328 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_sig)])
331 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGMASK_LOCK], [
332 AC_MSG_CHECKING([for sigmask_lock in struct task_struct])
333 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_sigmask_lock], [
335 [#include <linux/sched.h>],
336 [struct task_struct _tsk;
337 printk("%d\n", _tsk.sigmask_lock);],
338 ac_cv_linux_sched_struct_task_struct_has_sigmask_lock=yes,
339 ac_cv_linux_sched_struct_task_struct_has_sigmask_lock=no)])
340 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_sigmask_lock)])
343 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGHAND], [
344 AC_MSG_CHECKING([for sighand in struct task_struct])
345 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_sighand], [
347 [#include <linux/sched.h>],
348 [struct task_struct _tsk;
349 printk("%d\n", _tsk.sighand);],
350 ac_cv_linux_sched_struct_task_struct_has_sighand=yes,
351 ac_cv_linux_sched_struct_task_struct_has_sighand=no)])
352 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_sighand)])
355 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_RLIM], [
356 AC_MSG_CHECKING([for rlim in struct task_struct])
357 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_rlim], [
359 [#include <linux/sched.h>],
360 [struct task_struct _tsk;
361 printk("%d\n", _tsk.rlim);],
362 ac_cv_linux_sched_struct_task_struct_has_rlim=yes,
363 ac_cv_linux_sched_struct_task_struct_has_rlim=no)])
364 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_rlim)])
367 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM], [
368 AC_MSG_CHECKING([for signal->rlim in struct task_struct])
369 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_signal_rlim], [
371 [#include <linux/sched.h>],
372 [struct task_struct _tsk;
373 printk("%d\n", _tsk.signal->rlim);],
374 ac_cv_linux_sched_struct_task_struct_has_signal_rlim=yes,
375 ac_cv_linux_sched_struct_task_struct_has_signal_rlim=no)])
376 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_signal_rlim)])
379 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_EXIT_STATE], [
380 AC_MSG_CHECKING([for exit_state in struct task_struct])
381 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_exit_state], [
383 [#include <linux/sched.h>],
384 [struct task_struct _tsk;
385 printk("%d\n", _tsk.exit_state);],
386 ac_cv_linux_sched_struct_task_struct_has_exit_state=yes,
387 ac_cv_linux_sched_struct_task_struct_has_exit_state=no)])
388 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_exit_state)])
391 AC_DEFUN([LINUX_FS_STRUCT_SUPER_HAS_ALLOC_INODE], [
392 AC_MSG_CHECKING([for alloc_inode in struct super_operations])
393 AC_CACHE_VAL([ac_cv_linux_fs_struct_super_has_alloc_inode], [
395 [#include <linux/fs.h>],
396 [struct super_operations _super;
397 printk("%p\n", _super.alloc_inode);],
398 ac_cv_linux_fs_struct_super_has_alloc_inode=yes,
399 ac_cv_linux_fs_struct_super_has_alloc_inode=no)])
400 AC_MSG_RESULT($ac_cv_linux_fs_struct_super_has_alloc_inode)])
403 AC_DEFUN([LINUX_KERNEL_SOCK_CREATE], [
404 AC_MSG_CHECKING([for 5th argument in sock_create found in some SELinux kernels])
405 AC_CACHE_VAL([ac_cv_linux_kernel_sock_create_v], [
407 [#include <linux/net.h>],
408 [sock_create(0,0,0,0,0);],
409 ac_cv_linux_kernel_sock_create_v=yes,
410 ac_cv_linux_kernel_sock_create_v=no)])
411 AC_MSG_RESULT($ac_cv_linux_kernel_sock_create_v)])
414 AC_DEFUN([LINUX_KERNEL_PAGE_FOLLOW_LINK], [
415 AC_MSG_CHECKING([for page_follow_link_light vs page_follow_link])
416 AC_CACHE_VAL([ac_cv_linux_kernel_page_follow_link], [
417 save_CPPFLAGS="$CPPFLAGS"
418 CPPFLAGS="$CPPFLAGS -Werror-implicit-function-declaration"
420 [#include <linux/fs.h>],
421 [page_follow_link(0,0);],
422 ac_cv_linux_kernel_page_follow_link=yes,
423 ac_cv_linux_kernel_page_follow_link=no)
424 CPPFLAGS="$save_CPPFLAGS"])
425 AC_MSG_RESULT($ac_cv_linux_kernel_page_follow_link)])
428 AC_DEFUN([LINUX_FS_STRUCT_ADDRESS_SPACE_HAS_GFP_MASK], [
429 AC_MSG_CHECKING([for gfp_mask in struct address_space])
430 AC_CACHE_VAL([ac_cv_linux_fs_struct_address_space_has_gfp_mask], [
432 [#include <linux/fs.h>],
433 [struct address_space _a;
434 printk("%d\n", _a.gfp_mask);],
435 ac_cv_linux_fs_struct_address_space_has_gfp_mask=yes,
436 ac_cv_linux_fs_struct_address_space_has_gfp_mask=no)])
437 AC_MSG_RESULT($ac_cv_linux_fs_struct_address_space_has_gfp_mask)])
440 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_BYTES], [
441 AC_MSG_CHECKING([for i_bytes in struct inode])
442 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_bytes], [
444 [#include <linux/fs.h>],
445 [struct inode _inode;
446 printk("%d\n", _inode.i_bytes);],
447 ac_cv_linux_fs_struct_inode_has_i_bytes=yes,
448 ac_cv_linux_fs_struct_inode_has_i_bytes=no)])
449 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_bytes)])
452 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_ALLOC_SEM], [
453 AC_MSG_CHECKING([for i_alloc_sem in struct inode])
454 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_alloc_sem], [
456 [#include <linux/fs.h>],
458 printk("%x\n", _i.i_alloc_sem);],
459 ac_cv_linux_fs_struct_inode_has_i_alloc_sem=yes,
460 ac_cv_linux_fs_struct_inode_has_i_alloc_sem=no)])
461 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_alloc_sem)])
464 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_TRUNCATE_SEM], [
465 AC_MSG_CHECKING([for i_truncate_sem in struct inode])
466 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_truncate_sem], [
468 [#include <linux/fs.h>],
470 printk("%x\n", _i.i_truncate_sem);],
471 ac_cv_linux_fs_struct_inode_has_i_truncate_sem=yes,
472 ac_cv_linux_fs_struct_inode_has_i_truncate_sem=no)])
473 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_truncate_sem)])
476 AC_DEFUN([LINUX_FS_STRUCT_ADDRESS_SPACE_HAS_PAGE_LOCK], [
477 AC_MSG_CHECKING([for page_lock in struct address_space])
478 AC_CACHE_VAL([ac_cv_linux_fs_struct_address_space_has_page_lock], [
480 [#include <linux/fs.h>],
481 [struct address_space _a_s;
482 printk("%x\n", _a_s.page_lock);],
483 ac_cv_linux_fs_struct_address_space_has_page_lock=yes,
484 ac_cv_linux_fs_struct_address_space_has_page_lock=no)])
485 AC_MSG_RESULT($ac_cv_linux_fs_struct_address_space_has_page_lock)])
488 AC_DEFUN([LINUX_INODE_SETATTR_RETURN_TYPE], [
489 AC_MSG_CHECKING([for inode_setattr return type])
490 AC_CACHE_VAL([ac_cv_linux_func_inode_setattr_returns_int], [
492 [#include <linux/fs.h>],
493 [struct inode _inode;
496 i = inode_setattr(&_inode, &_iattr);],
497 ac_cv_linux_func_inode_setattr_returns_int=yes,
498 ac_cv_linux_func_inode_setattr_returns_int=no)])
499 AC_MSG_RESULT($ac_cv_linux_func_inode_setattr_returns_int)])
502 AC_DEFUN([LINUX_WRITE_INODE_RETURN_TYPE], [
503 AC_MSG_CHECKING([for write_inode return type])
504 AC_CACHE_VAL([ac_cv_linux_func_write_inode_returns_int], [
506 [#include <linux/fs.h>],
507 [struct inode _inode;
508 struct super_operations _sops;
510 i = _sops.write_inode(&_inode, 0);],
511 ac_cv_linux_func_write_inode_returns_int=yes,
512 ac_cv_linux_func_write_inode_returns_int=no)])
513 AC_MSG_RESULT($ac_cv_linux_func_write_inode_returns_int)])
516 AC_DEFUN([LINUX_AOP_WRITEBACK_CONTROL], [
517 AC_MSG_CHECKING([whether address_space_operations.writepage takes a writeback_control])
518 AC_CACHE_VAL([ac_cv_linux_func_a_writepage_takes_writeback_control], [
520 [#include <linux/fs.h>
521 #include <linux/mm.h>
522 #include <linux/writeback.h>],
523 [struct address_space_operations _aops;
525 struct writeback_control _writeback_control;
526 (void)_aops.writepage(&_page, &_writeback_control);],
527 ac_cv_linux_func_a_writepage_takes_writeback_control=yes,
528 ac_cv_linux_func_a_writepage_takes_writeback_control=no)])
529 AC_MSG_RESULT($ac_cv_linux_func_a_writepage_takes_writeback_control)])
532 AC_DEFUN([LINUX_REFRIGERATOR], [
533 AC_MSG_CHECKING([whether refrigerator takes PF_FREEZE])
534 AC_CACHE_VAL([ac_cv_linux_func_refrigerator_takes_pf_freeze], [
536 [#include <linux/sched.h>],
537 [refrigerator(PF_FREEZE);],
538 ac_cv_linux_func_refrigerator_takes_pf_freeze=yes,
539 ac_cv_linux_func_refrigerator_takes_pf_freeze=no)])
540 AC_MSG_RESULT($ac_cv_linux_func_refrigerator_takes_pf_freeze)])
543 AC_DEFUN([LINUX_IOP_I_CREATE_TAKES_NAMEIDATA], [
544 AC_MSG_CHECKING([whether inode_operations.create takes a nameidata])
545 AC_CACHE_VAL([ac_cv_linux_func_i_create_takes_nameidata], [
547 [#include <linux/fs.h>
548 #include <linux/namei.h>],
549 [struct inode _inode;
550 struct dentry _dentry;
551 struct nameidata _nameidata;
552 (void)_inode.i_op->create(&_inode, &_dentry, 0, &_nameidata);],
553 ac_cv_linux_func_i_create_takes_nameidata=yes,
554 ac_cv_linux_func_i_create_takes_nameidata=no)])
555 AC_MSG_RESULT($ac_cv_linux_func_i_create_takes_nameidata)])
558 AC_DEFUN([LINUX_IOP_I_LOOKUP_TAKES_NAMEIDATA], [
559 AC_MSG_CHECKING([whether inode_operations.lookup takes a nameidata])
560 AC_CACHE_VAL([ac_cv_linux_func_i_lookup_takes_nameidata], [
562 [#include <linux/fs.h>
563 #include <linux/namei.h>],
564 [struct inode _inode;
565 struct dentry _dentry;
566 struct nameidata _nameidata;
567 (void)_inode.i_op->lookup(&_inode, &_dentry, &_nameidata);],
568 ac_cv_linux_func_i_lookup_takes_nameidata=yes,
569 ac_cv_linux_func_i_lookup_takes_nameidata=no)])
570 AC_MSG_RESULT($ac_cv_linux_func_i_lookup_takes_nameidata)])
573 AC_DEFUN([LINUX_IOP_I_PERMISSION_TAKES_NAMEIDATA], [
574 AC_MSG_CHECKING([whether inode_operations.permission takes a nameidata])
575 AC_CACHE_VAL([ac_cv_linux_func_i_permission_takes_nameidata], [
577 [#include <linux/fs.h>
578 #include <linux/namei.h>],
579 [struct inode _inode;
580 struct dentry _dentry;
581 struct nameidata _nameidata;
582 (void)_inode.i_op->permission(&_inode, 0, &_nameidata);],
583 ac_cv_linux_func_i_permission_takes_nameidata=yes,
584 ac_cv_linux_func_i_permission_takes_nameidata=no)])
585 AC_MSG_RESULT($ac_cv_linux_func_i_permission_takes_nameidata)])
588 AC_DEFUN([LINUX_DOP_D_REVALIDATE_TAKES_NAMEIDATA], [
589 AC_MSG_CHECKING([whether dentry_operations.d_revalidate takes a nameidata])
590 AC_CACHE_VAL([ac_cv_linux_func_d_revalidate_takes_nameidata], [
592 [#include <linux/fs.h>
593 #include <linux/namei.h>],
594 [struct dentry _dentry;
595 struct nameidata _nameidata;
596 (void)_dentry.d_op->d_revalidate(&_dentry, &_nameidata);],
597 ac_cv_linux_func_d_revalidate_takes_nameidata=yes,
598 ac_cv_linux_func_d_revalidate_takes_nameidata=no)])
599 AC_MSG_RESULT($ac_cv_linux_func_d_revalidate_takes_nameidata)])
601 AC_DEFUN([LINUX_GET_SB_HAS_STRUCT_VFSMOUNT], [
602 AC_MSG_CHECKING([for struct vfsmount * in get_sb_nodev()])
603 AC_CACHE_VAL([ac_cv_linux_get_sb_has_struct_vfsmount], [
605 [#include <linux/fs.h>],
606 [get_sb_nodev(0,0,0,0,0);],
607 ac_cv_linux_get_sb_has_struct_vfsmount=yes,
608 ac_cv_linux_get_sb_has_struct_vfsmount=no)])
609 AC_MSG_RESULT($ac_cv_linux_get_sb_has_struct_vfsmount)])
611 AC_DEFUN([LINUX_LINUX_KEYRING_SUPPORT], [
612 AC_MSG_CHECKING([for linux kernel keyring support])
613 AC_CACHE_VAL([ac_cv_linux_keyring_support], [
615 [#include <linux/rwsem.h>
616 #include <linux/key.h>
617 #include <linux/keyctl.h>
618 #include <asm/unistd.h>
620 static inline _syscall2(long, keyctl, int, option, void*, arg2);],
622 keyctl(KEYCTL_JOIN_SESSION_KEYRING, NULL);
623 request_key(NULL, NULL, NULL);
625 #error rebuild your kernel with CONFIG_KEYS
627 ac_cv_linux_keyring_support=yes,
628 ac_cv_linux_keyring_support=no)])
629 AC_MSG_RESULT($ac_cv_linux_keyring_support)
630 if test "x$ac_cv_linux_keyring_support" = "xyes"; then
631 AC_DEFINE([LINUX_KEYRING_SUPPORT], 1, [define if your kernel has keyring support])
634 AC_DEFUN([LINUX_KEY_ALLOC_NEEDS_STRUCT_TASK], [
635 AC_MSG_CHECKING([if key_alloc() takes a struct task *])
636 AC_CACHE_VAL([ac_cv_key_alloc_needs_struct_task], [
638 [#include <linux/rwsem.h>
639 #include <linux/key.h>
641 [(void) key_alloc(NULL, NULL, 0, 0, NULL, 0, 0);],
642 ac_cv_key_alloc_needs_struct_task=yes,
643 ac_cv_key_alloc_needs_struct_task=no)])
644 AC_MSG_RESULT($ac_cv_key_alloc_needs_struct_task)
645 if test "x$ac_cv_key_alloc_needs_struct_task" = "xyes"; then
646 AC_DEFINE([KEY_ALLOC_NEEDS_STRUCT_TASK], 1, [define if key_alloc takes a struct task *])