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 [#include <linux/modversions.h>],
111 [#ifndef __ver_sys_chdir
112 #error sys_chdir not exported
114 ac_cv_linux_exports_sys_chdir=yes,
115 ac_cv_linux_exports_sys_chdir=no)])
116 AC_MSG_RESULT($ac_cv_linux_exports_sys_chdir)])
119 AC_DEFUN([LINUX_EXPORTS_SYS_CLOSE], [
120 AC_MSG_CHECKING([for exported sys_close])
121 AC_CACHE_VAL([ac_cv_linux_exports_sys_close], [
123 [#include <linux/modversions.h>],
124 [#ifndef __ver_sys_close
125 #error sys_close not exported
127 ac_cv_linux_exports_sys_close=yes,
128 ac_cv_linux_exports_sys_close=no)])
129 AC_MSG_RESULT($ac_cv_linux_exports_sys_close)])
132 AC_DEFUN([LINUX_EXPORTS_SYS_WAIT4], [
133 AC_MSG_CHECKING([for exported sys_wait4])
134 AC_CACHE_VAL([ac_cv_linux_exports_sys_wait4], [
136 [#include <linux/modversions.h>],
137 [#ifndef __ver_sys_wait4
138 #error sys_wait4 not exported
140 ac_cv_linux_exports_sys_wait4=yes,
141 ac_cv_linux_exports_sys_wait4=no)])
142 AC_MSG_RESULT($ac_cv_linux_exports_sys_wait4)])
145 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_CDEV], [
146 AC_MSG_CHECKING([for i_cdev in struct inode])
147 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_cdev], [
149 [#include <linux/fs.h>],
150 [struct inode _inode;
151 printk("%d\n", _inode.i_cdev);],
152 ac_cv_linux_fs_struct_inode_has_i_cdev=yes,
153 ac_cv_linux_fs_struct_inode_has_i_cdev=no)])
154 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_cdev)])
157 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_DEVICES], [
158 AC_MSG_CHECKING([for i_devices in struct inode])
159 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_devices], [
161 [#include <linux/fs.h>],
162 [struct inode _inode;
163 printk("%d\n", _inode.i_devices);],
164 ac_cv_linux_fs_struct_inode_has_i_devices=yes,
165 ac_cv_linux_fs_struct_inode_has_i_devices=no)])
166 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_devices)])
169 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_DIRTY_DATA_BUFFERS], [
170 AC_MSG_CHECKING([for i_dirty_data_buffers in struct inode])
171 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers], [
173 [#include <linux/fs.h>],
174 [struct inode _inode;
175 printk("%d\n", _inode.i_dirty_data_buffers);],
176 ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers=yes,
177 ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers=no)])
178 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_dirty_data_buffers)])
181 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_INOTIFY_LOCK], [
182 AC_MSG_CHECKING([for inotify_lock in struct inode])
183 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_inotify_lock], [
185 [#include <linux/fs.h>],
186 [struct inode _inode;
187 printk("%d\n", _inode.inotify_lock);],
188 ac_cv_linux_fs_struct_inode_has_inotify_lock=yes,
189 ac_cv_linux_fs_struct_inode_has_inotify_lock=no)])
190 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_inotify_lock)])
192 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_INOTIFY_SEM], [
193 AC_MSG_CHECKING([for inotify_sem in struct inode])
194 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_inotify_sem], [
196 [#include <linux/fs.h>],
197 [struct inode _inode;
198 printk("%x\n", _inode.inotify_sem);],
199 ac_cv_linux_fs_struct_inode_has_inotify_sem=yes,
200 ac_cv_linux_fs_struct_inode_has_inotify_sem=no)])
201 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_inotify_sem)])
204 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_MAPPING_OVERLOAD], [
205 AC_MSG_CHECKING([for i_mapping_overload in struct inode])
206 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_mapping_overload], [
208 [#include <linux/fs.h>],
209 [struct inode _inode;
210 printk("%d\n", _inode.i_mapping_overload);],
211 ac_cv_linux_fs_struct_inode_has_i_mapping_overload=yes,
212 ac_cv_linux_fs_struct_inode_has_i_mapping_overload=no)])
213 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_mapping_overload)])
216 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_MMAP_SHARED], [
217 AC_MSG_CHECKING([for i_mmap_shared in struct inode])
218 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_mmap_shared], [
220 [#include <linux/fs.h>],
221 [struct inode _inode;
222 printk("%d\n", _inode.i_mmap_shared);],
223 ac_cv_linux_fs_struct_inode_has_i_mmap_shared=yes,
224 ac_cv_linux_fs_struct_inode_has_i_mmap_shared=no)])
225 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_mmap_shared)])
228 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_MUTEX], [
229 AC_MSG_CHECKING([for i_mutex in struct inode])
230 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_mutex], [
232 [#include <linux/fs.h>],
233 [struct inode _inode;
234 printk("%d\n", _inode.i_mutex);],
235 ac_cv_linux_fs_struct_inode_has_i_mutex=yes,
236 ac_cv_linux_fs_struct_inode_has_i_mutex=no)])
237 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_mutex)])
240 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_SECURITY], [
241 AC_MSG_CHECKING([for i_security in struct inode])
242 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_security], [
244 [#include <linux/fs.h>],
245 [struct inode _inode;
246 printk("%d\n", _inode.i_security);],
247 ac_cv_linux_fs_struct_inode_has_i_security=yes,
248 ac_cv_linux_fs_struct_inode_has_i_security=no)])
249 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_security)])
252 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_SB_LIST], [
253 AC_MSG_CHECKING([for i_sb_list in struct inode])
254 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_sb_list], [
256 [#include <linux/fs.h>],
257 [struct inode _inode;
258 printk("%d\n", _inode.i_sb_list);],
259 ac_cv_linux_fs_struct_inode_has_i_sb_list=yes,
260 ac_cv_linux_fs_struct_inode_has_i_sb_list=no)])
261 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_sb_list)])
264 AC_DEFUN([LINUX_RECALC_SIGPENDING_ARG_TYPE], [
265 AC_MSG_CHECKING([for recalc_sigpending arg type])
266 AC_CACHE_VAL([ac_cv_linux_func_recalc_sigpending_takes_void], [
268 [#include <linux/sched.h>],
269 [recalc_sigpending();],
270 ac_cv_linux_func_recalc_sigpending_takes_void=yes,
271 ac_cv_linux_func_recalc_sigpending_takes_void=no)])
272 AC_MSG_RESULT($ac_cv_linux_func_recalc_sigpending_takes_void)])
275 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_PARENT], [
276 AC_MSG_CHECKING([for parent in struct task_struct])
277 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_parent], [
279 [#include <linux/sched.h>],
280 [struct task_struct _tsk;
281 printk("%d\n", _tsk.parent);],
282 ac_cv_linux_sched_struct_task_struct_has_parent=yes,
283 ac_cv_linux_sched_struct_task_struct_has_parent=no)])
284 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_parent)])
287 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_REAL_PARENT], [
288 AC_MSG_CHECKING([for real_parent in struct task_struct])
289 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_real_parent], [
291 [#include <linux/sched.h>],
292 [struct task_struct _tsk;
293 printk("%d\n", _tsk.real_parent);],
294 ac_cv_linux_sched_struct_task_struct_has_real_parent=yes,
295 ac_cv_linux_sched_struct_task_struct_has_real_parent=no)])
296 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_real_parent)])
299 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIG], [
300 AC_MSG_CHECKING([for sig in struct task_struct])
301 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_sig], [
303 [#include <linux/sched.h>],
304 [struct task_struct _tsk;
305 printk("%d\n", _tsk.sig);],
306 ac_cv_linux_sched_struct_task_struct_has_sig=yes,
307 ac_cv_linux_sched_struct_task_struct_has_sig=no)])
308 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_sig)])
311 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGMASK_LOCK], [
312 AC_MSG_CHECKING([for sigmask_lock in struct task_struct])
313 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_sigmask_lock], [
315 [#include <linux/sched.h>],
316 [struct task_struct _tsk;
317 printk("%d\n", _tsk.sigmask_lock);],
318 ac_cv_linux_sched_struct_task_struct_has_sigmask_lock=yes,
319 ac_cv_linux_sched_struct_task_struct_has_sigmask_lock=no)])
320 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_sigmask_lock)])
323 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGHAND], [
324 AC_MSG_CHECKING([for sighand in struct task_struct])
325 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_sighand], [
327 [#include <linux/sched.h>],
328 [struct task_struct _tsk;
329 printk("%d\n", _tsk.sighand);],
330 ac_cv_linux_sched_struct_task_struct_has_sighand=yes,
331 ac_cv_linux_sched_struct_task_struct_has_sighand=no)])
332 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_sighand)])
335 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_RLIM], [
336 AC_MSG_CHECKING([for rlim in struct task_struct])
337 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_rlim], [
339 [#include <linux/sched.h>],
340 [struct task_struct _tsk;
341 printk("%d\n", _tsk.rlim);],
342 ac_cv_linux_sched_struct_task_struct_has_rlim=yes,
343 ac_cv_linux_sched_struct_task_struct_has_rlim=no)])
344 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_rlim)])
347 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM], [
348 AC_MSG_CHECKING([for signal->rlim in struct task_struct])
349 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_signal_rlim], [
351 [#include <linux/sched.h>],
352 [struct task_struct _tsk;
353 printk("%d\n", _tsk.signal->rlim);],
354 ac_cv_linux_sched_struct_task_struct_has_signal_rlim=yes,
355 ac_cv_linux_sched_struct_task_struct_has_signal_rlim=no)])
356 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_signal_rlim)])
359 AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_EXIT_STATE], [
360 AC_MSG_CHECKING([for exit_state in struct task_struct])
361 AC_CACHE_VAL([ac_cv_linux_sched_struct_task_struct_has_exit_state], [
363 [#include <linux/sched.h>],
364 [struct task_struct _tsk;
365 printk("%d\n", _tsk.exit_state);],
366 ac_cv_linux_sched_struct_task_struct_has_exit_state=yes,
367 ac_cv_linux_sched_struct_task_struct_has_exit_state=no)])
368 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_exit_state)])
371 AC_DEFUN([LINUX_FS_STRUCT_SUPER_HAS_ALLOC_INODE], [
372 AC_MSG_CHECKING([for alloc_inode in struct super_operations])
373 AC_CACHE_VAL([ac_cv_linux_fs_struct_super_has_alloc_inode], [
375 [#include <linux/fs.h>],
376 [struct super_operations _super;
377 printk("%p\n", _super.alloc_inode);],
378 ac_cv_linux_fs_struct_super_has_alloc_inode=yes,
379 ac_cv_linux_fs_struct_super_has_alloc_inode=no)])
380 AC_MSG_RESULT($ac_cv_linux_fs_struct_super_has_alloc_inode)])
383 AC_DEFUN([LINUX_KERNEL_SOCK_CREATE], [
384 AC_MSG_CHECKING([for 5th argument in sock_create found in some SELinux kernels])
385 AC_CACHE_VAL([ac_cv_linux_kernel_sock_create_v], [
387 [#include <linux/net.h>],
388 [sock_create(0,0,0,0,0);],
389 ac_cv_linux_kernel_sock_create_v=yes,
390 ac_cv_linux_kernel_sock_create_v=no)])
391 AC_MSG_RESULT($ac_cv_linux_kernel_sock_create_v)])
394 AC_DEFUN([LINUX_KERNEL_PAGE_FOLLOW_LINK], [
395 AC_MSG_CHECKING([for page_follow_link_light vs page_follow_link])
396 AC_CACHE_VAL([ac_cv_linux_kernel_page_follow_link], [
397 save_CPPFLAGS="$CPPFLAGS"
398 CPPFLAGS="$CPPFLAGS -Werror-implicit-function-declaration"
400 [#include <linux/fs.h>],
401 [page_follow_link(0,0);],
402 ac_cv_linux_kernel_page_follow_link=yes,
403 ac_cv_linux_kernel_page_follow_link=no)
404 CPPFLAGS="$save_CPPFLAGS"])
405 AC_MSG_RESULT($ac_cv_linux_kernel_page_follow_link)])
408 AC_DEFUN([LINUX_FS_STRUCT_ADDRESS_SPACE_HAS_GFP_MASK], [
409 AC_MSG_CHECKING([for gfp_mask in struct address_space])
410 AC_CACHE_VAL([ac_cv_linux_fs_struct_address_space_has_gfp_mask], [
412 [#include <linux/fs.h>],
413 [struct address_space _a;
414 printk("%d\n", _a.gfp_mask);],
415 ac_cv_linux_fs_struct_address_space_has_gfp_mask=yes,
416 ac_cv_linux_fs_struct_address_space_has_gfp_mask=no)])
417 AC_MSG_RESULT($ac_cv_linux_fs_struct_address_space_has_gfp_mask)])
420 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_BYTES], [
421 AC_MSG_CHECKING([for i_bytes in struct inode])
422 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_bytes], [
424 [#include <linux/fs.h>],
425 [struct inode _inode;
426 printk("%d\n", _inode.i_bytes);],
427 ac_cv_linux_fs_struct_inode_has_i_bytes=yes,
428 ac_cv_linux_fs_struct_inode_has_i_bytes=no)])
429 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_bytes)])
432 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_ALLOC_SEM], [
433 AC_MSG_CHECKING([for i_alloc_sem in struct inode])
434 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_alloc_sem], [
436 [#include <linux/fs.h>],
438 printk("%x\n", _i.i_alloc_sem);],
439 ac_cv_linux_fs_struct_inode_has_i_alloc_sem=yes,
440 ac_cv_linux_fs_struct_inode_has_i_alloc_sem=no)])
441 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_alloc_sem)])
444 AC_DEFUN([LINUX_FS_STRUCT_INODE_HAS_I_TRUNCATE_SEM], [
445 AC_MSG_CHECKING([for i_truncate_sem in struct inode])
446 AC_CACHE_VAL([ac_cv_linux_fs_struct_inode_has_i_truncate_sem], [
448 [#include <linux/fs.h>],
450 printk("%x\n", _i.i_truncate_sem);],
451 ac_cv_linux_fs_struct_inode_has_i_truncate_sem=yes,
452 ac_cv_linux_fs_struct_inode_has_i_truncate_sem=no)])
453 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_truncate_sem)])
456 AC_DEFUN([LINUX_FS_STRUCT_ADDRESS_SPACE_HAS_PAGE_LOCK], [
457 AC_MSG_CHECKING([for page_lock in struct address_space])
458 AC_CACHE_VAL([ac_cv_linux_fs_struct_address_space_has_page_lock], [
460 [#include <linux/fs.h>],
461 [struct address_space _a_s;
462 printk("%x\n", _a_s.page_lock);],
463 ac_cv_linux_fs_struct_address_space_has_page_lock=yes,
464 ac_cv_linux_fs_struct_address_space_has_page_lock=no)])
465 AC_MSG_RESULT($ac_cv_linux_fs_struct_address_space_has_page_lock)])
468 AC_DEFUN([LINUX_INODE_SETATTR_RETURN_TYPE], [
469 AC_MSG_CHECKING([for inode_setattr return type])
470 AC_CACHE_VAL([ac_cv_linux_func_inode_setattr_returns_int], [
472 [#include <linux/fs.h>],
473 [struct inode _inode;
476 i = inode_setattr(&_inode, &_iattr);],
477 ac_cv_linux_func_inode_setattr_returns_int=yes,
478 ac_cv_linux_func_inode_setattr_returns_int=no)])
479 AC_MSG_RESULT($ac_cv_linux_func_inode_setattr_returns_int)])
482 AC_DEFUN([LINUX_WRITE_INODE_RETURN_TYPE], [
483 AC_MSG_CHECKING([for write_inode return type])
484 AC_CACHE_VAL([ac_cv_linux_func_write_inode_returns_int], [
486 [#include <linux/fs.h>],
487 [struct inode _inode;
488 struct super_operations _sops;
490 i = _sops.write_inode(&_inode, 0);],
491 ac_cv_linux_func_write_inode_returns_int=yes,
492 ac_cv_linux_func_write_inode_returns_int=no)])
493 AC_MSG_RESULT($ac_cv_linux_func_write_inode_returns_int)])
496 AC_DEFUN([LINUX_AOP_WRITEBACK_CONTROL], [
497 AC_MSG_CHECKING([whether address_space_operations.writepage takes a writeback_control])
498 AC_CACHE_VAL([ac_cv_linux_func_a_writepage_takes_writeback_control], [
500 [#include <linux/fs.h>
501 #include <linux/mm.h>
502 #include <linux/writeback.h>],
503 [struct address_space_operations _aops;
505 struct writeback_control _writeback_control;
506 (void)_aops.writepage(&_page, &_writeback_control);],
507 ac_cv_linux_func_a_writepage_takes_writeback_control=yes,
508 ac_cv_linux_func_a_writepage_takes_writeback_control=no)])
509 AC_MSG_RESULT($ac_cv_linux_func_a_writepage_takes_writeback_control)])
512 AC_DEFUN([LINUX_REFRIGERATOR], [
513 AC_MSG_CHECKING([whether refrigerator takes PF_FREEZE])
514 AC_CACHE_VAL([ac_cv_linux_func_refrigerator_takes_pf_freeze], [
516 [#include <linux/sched.h>],
517 [refrigerator(PF_FREEZE);],
518 ac_cv_linux_func_refrigerator_takes_pf_freeze=yes,
519 ac_cv_linux_func_refrigerator_takes_pf_freeze=no)])
520 AC_MSG_RESULT($ac_cv_linux_func_refrigerator_takes_pf_freeze)])
523 AC_DEFUN([LINUX_IOP_I_CREATE_TAKES_NAMEIDATA], [
524 AC_MSG_CHECKING([whether inode_operations.create takes a nameidata])
525 AC_CACHE_VAL([ac_cv_linux_func_i_create_takes_nameidata], [
527 [#include <linux/fs.h>
528 #include <linux/namei.h>],
529 [struct inode _inode;
530 struct dentry _dentry;
531 struct nameidata _nameidata;
532 (void)_inode.i_op->create(&_inode, &_dentry, 0, &_nameidata);],
533 ac_cv_linux_func_i_create_takes_nameidata=yes,
534 ac_cv_linux_func_i_create_takes_nameidata=no)])
535 AC_MSG_RESULT($ac_cv_linux_func_i_create_takes_nameidata)])
538 AC_DEFUN([LINUX_IOP_I_LOOKUP_TAKES_NAMEIDATA], [
539 AC_MSG_CHECKING([whether inode_operations.lookup takes a nameidata])
540 AC_CACHE_VAL([ac_cv_linux_func_i_lookup_takes_nameidata], [
542 [#include <linux/fs.h>
543 #include <linux/namei.h>],
544 [struct inode _inode;
545 struct dentry _dentry;
546 struct nameidata _nameidata;
547 (void)_inode.i_op->lookup(&_inode, &_dentry, &_nameidata);],
548 ac_cv_linux_func_i_lookup_takes_nameidata=yes,
549 ac_cv_linux_func_i_lookup_takes_nameidata=no)])
550 AC_MSG_RESULT($ac_cv_linux_func_i_lookup_takes_nameidata)])
553 AC_DEFUN([LINUX_IOP_I_PERMISSION_TAKES_NAMEIDATA], [
554 AC_MSG_CHECKING([whether inode_operations.permission takes a nameidata])
555 AC_CACHE_VAL([ac_cv_linux_func_i_permission_takes_nameidata], [
557 [#include <linux/fs.h>
558 #include <linux/namei.h>],
559 [struct inode _inode;
560 struct dentry _dentry;
561 struct nameidata _nameidata;
562 (void)_inode.i_op->permission(&_inode, 0, &_nameidata);],
563 ac_cv_linux_func_i_permission_takes_nameidata=yes,
564 ac_cv_linux_func_i_permission_takes_nameidata=no)])
565 AC_MSG_RESULT($ac_cv_linux_func_i_permission_takes_nameidata)])
568 AC_DEFUN([LINUX_DOP_D_REVALIDATE_TAKES_NAMEIDATA], [
569 AC_MSG_CHECKING([whether dentry_operations.d_revalidate takes a nameidata])
570 AC_CACHE_VAL([ac_cv_linux_func_d_revalidate_takes_nameidata], [
572 [#include <linux/fs.h>
573 #include <linux/namei.h>],
574 [struct dentry _dentry;
575 struct nameidata _nameidata;
576 (void)_dentry.d_op->d_revalidate(&_dentry, &_nameidata);],
577 ac_cv_linux_func_d_revalidate_takes_nameidata=yes,
578 ac_cv_linux_func_d_revalidate_takes_nameidata=no)])
579 AC_MSG_RESULT($ac_cv_linux_func_d_revalidate_takes_nameidata)])
581 AC_DEFUN([LINUX_GET_SB_HAS_STRUCT_VFSMOUNT], [
582 AC_MSG_CHECKING([for struct vfsmount * in get_sb_nodev()])
583 AC_CACHE_VAL([ac_cv_linux_get_sb_has_struct_vfsmount], [
585 [#include <linux/fs.h>],
586 [get_sb_nodev(0,0,0,0,0);],
587 ac_cv_linux_get_sb_has_struct_vfsmount=yes,
588 ac_cv_linux_get_sb_has_struct_vfsmount=no)])
589 AC_MSG_RESULT($ac_cv_linux_get_sb_has_struct_vfsmount)])
591 AC_DEFUN([LINUX_LINUX_KEYRING_SUPPORT], [
592 AC_MSG_CHECKING([for linux kernel keyring support])
593 AC_CACHE_VAL([ac_cv_linux_keyring_support], [
595 [#include <linux/rwsem.h>
596 #include <linux/key.h>
597 #include <linux/keyctl.h>
598 #include <asm/unistd.h>
600 static inline _syscall2(long, keyctl, int, option, void*, arg2);],
602 keyctl(KEYCTL_JOIN_SESSION_KEYRING, NULL);
603 request_key(NULL, NULL, NULL);
605 #error rebuild your kernel with CONFIG_KEYS
607 ac_cv_linux_keyring_support=yes,
608 ac_cv_linux_keyring_support=no)])
609 AC_MSG_RESULT($ac_cv_linux_keyring_support)
610 if test "x$ac_cv_linux_keyring_support" = "xyes"; then
611 AC_DEFINE([LINUX_KEYRING_SUPPORT], 1, [define if your kernel has keyring support])
614 AC_DEFUN([LINUX_KEY_ALLOC_NEEDS_STRUCT_TASK], [
615 AC_MSG_CHECKING([if key_alloc() takes a struct task *])
616 AC_CACHE_VAL([ac_cv_key_alloc_needs_struct_task], [
618 [#include <linux/rwsem.h>
619 #include <linux/key.h>
621 [(void) key_alloc(NULL, NULL, 0, 0, NULL, 0, 0);],
622 ac_cv_key_alloc_needs_struct_task=yes,
623 ac_cv_key_alloc_needs_struct_task=no)])
624 AC_MSG_RESULT($ac_cv_key_alloc_needs_struct_task)
625 if test "x$ac_cv_key_alloc_needs_struct_task" = "xyes"; then
626 AC_DEFINE([KEY_ALLOC_NEEDS_STRUCT_TASK], 1, [define if key_alloc takes a struct task *])