4 # whether to enable various libcfs debugs (CDEBUG, ENTRY/EXIT, LASSERT, etc.)
6 AC_DEFUN([LIBCFS_CONFIG_CDEBUG], [
7 AC_MSG_CHECKING([whether to enable CDEBUG, CWARN])
8 AC_ARG_ENABLE([libcfs_cdebug],
9 AS_HELP_STRING([--disable-libcfs-cdebug],
10 [disable libcfs CDEBUG, CWARN]),
11 [], [enable_libcfs_cdebug="yes"])
12 AC_MSG_RESULT([$enable_libcfs_cdebug])
13 AS_IF([test "x$enable_libcfs_cdebug" = xyes], [
14 AC_DEFINE(CDEBUG_ENABLED, 1, [enable libcfs CDEBUG, CWARN])
15 AC_SUBST(ENABLE_LIBCFS_CDEBUG, yes)
17 AC_SUBST(ENABLE_LIBCFS_CDEBUG, no)
20 AC_MSG_CHECKING([whether to enable ENTRY/EXIT])
21 AC_ARG_ENABLE([libcfs_trace],
22 AS_HELP_STRING([--disable-libcfs-trace],
23 [disable libcfs ENTRY/EXIT]),
24 [], [enable_libcfs_trace="yes"])
25 AC_MSG_RESULT([$enable_libcfs_trace])
26 AS_IF([test "x$enable_libcfs_trace" = xyes], [
27 AC_DEFINE(CDEBUG_ENTRY_EXIT, 1, [enable libcfs ENTRY/EXIT])
28 AC_SUBST(ENABLE_LIBCFS_TRACE, yes)
30 AC_SUBST(ENABLE_LIBCFS_TRACE, no)
33 AC_MSG_CHECKING([whether to enable LASSERT, LASSERTF])
34 AC_ARG_ENABLE([libcfs_assert],
35 AS_HELP_STRING([--disable-libcfs-assert],
36 [disable libcfs LASSERT, LASSERTF]),
37 [], [enable_libcfs_assert="yes"])
38 AC_MSG_RESULT([$enable_libcfs_assert])
39 AS_IF([test x$enable_libcfs_assert = xyes], [
40 AC_DEFINE(LIBCFS_DEBUG, 1, [enable libcfs LASSERT, LASSERTF])
41 AC_SUBST(ENABLE_LIBCFS_ASSERT, yes)
43 AC_SUBST(ENABLE_LIBCFS_ASSERT, no)
45 ]) # LIBCFS_CONFIG_CDEBUG
48 # LIBCFS_CONFIG_PANIC_DUMPLOG
50 # check if tunable panic_dumplog is wanted
52 AC_DEFUN([LIBCFS_CONFIG_PANIC_DUMPLOG], [
53 AC_MSG_CHECKING([whether to use tunable 'panic_dumplog' support])
54 AC_ARG_ENABLE([panic_dumplog],
55 AS_HELP_STRING([--enable-panic_dumplog],
56 [enable panic_dumplog]),
57 [], [enable_panic_dumplog="no"])
58 AC_MSG_RESULT([$enable_panic_dumplog])
59 AS_IF([test "x$enable_panic_dumplog" = xyes], [
60 AC_DEFINE(LNET_DUMP_ON_PANIC, 1, [use dumplog on panic])
61 AC_SUBST(ENABLE_PANIC_DUMPLOG, yes)
63 AC_SUBST(ENABLE_PANIC_DUMPLOG, no)
65 ]) # LIBCFS_CONFIG_PANIC_DUMPLOG
68 # Kernel version 3.11 introduced ktime_get_ts64
70 AC_DEFUN([LIBCFS_SRC_KTIME_GET_TS64], [
71 LB2_LINUX_TEST_SRC([ktime_get_ts64], [
72 #include <linux/hrtimer.h>
73 #include <linux/ktime.h>
75 struct timespec64 *ts = NULL;
80 AC_DEFUN([LIBCFS_KTIME_GET_TS64], [
81 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_get_ts64' exist],
83 AC_DEFINE(HAVE_KTIME_GET_TS64, 1,
84 ['ktime_get_ts64' is available])
86 ]) # LIBCFS_KTIME_GET_TS64
89 # Kernel version 3.12-rc4 commit c2d816443ef30 added prepare_to_wait_event()
91 AC_DEFUN([LIBCFS_SRC_PREPARE_TO_WAIT_EVENT],[
92 LB2_LINUX_TEST_SRC([prepare_to_wait_event], [
93 #include <linux/wait.h>
95 prepare_to_wait_event(NULL, NULL, 0);
98 AC_DEFUN([LIBCFS_PREPARE_TO_WAIT_EVENT],[
99 LB2_MSG_LINUX_TEST_RESULT([does function 'prepare_to_wait_event' exist],
100 [prepare_to_wait_event], [
101 AC_DEFINE(HAVE_PREPARE_TO_WAIT_EVENT, 1,
102 ['prepare_to_wait_event' is available])
104 ]) # LIBCFS_PREPARE_TO_WAIT_EVENT
107 # Linux kernel 3.12 introduced struct kernel_param_ops
108 # This has been backported to all lustre supported
109 # clients except RHEL6. We have to handle the differences.
111 AC_DEFUN([LIBCFS_SRC_KERNEL_PARAM_OPS],[
112 LB2_LINUX_TEST_SRC([kernel_param_ops], [
113 #include <linux/module.h>
115 struct kernel_param_ops ops;
120 AC_DEFUN([LIBCFS_KERNEL_PARAM_OPS],[
121 LB2_MSG_LINUX_TEST_RESULT([does 'struct kernel_param_ops' exist],
122 [kernel_param_ops], [
123 AC_DEFINE(HAVE_KERNEL_PARAM_OPS, 1,
124 ['struct kernel_param_ops' is available])
126 ]) # LIBCFS_KERNEL_PARAM_OPS
129 # Kernel version 3.12 introduced ktime_add
131 AC_DEFUN([LIBCFS_SRC_KTIME_ADD],[
132 LB2_LINUX_TEST_SRC([ktime_add], [
133 #include <linux/hrtimer.h>
134 #include <linux/ktime.h>
136 ktime_t start = ktime_set(0, 0);
140 total = ktime_add(start, end);
143 AC_DEFUN([LIBCFS_KTIME_ADD],[
144 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_add' exist],
146 AC_DEFINE(HAVE_KTIME_ADD, 1, [ktime_add is available])
148 ]) # LIBCFS_KTIME_ADD
151 # Kernel version 3.12 introduced ktime_after
153 AC_DEFUN([LIBCFS_SRC_KTIME_AFTER],[
154 LB2_LINUX_TEST_SRC([ktime_after], [
155 #include <linux/hrtimer.h>
156 #include <linux/ktime.h>
158 ktime_t start = ktime_set(0, 0);
161 ktime_after(start, end);
164 AC_DEFUN([LIBCFS_KTIME_AFTER],[
165 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_after' exist],
167 AC_DEFINE(HAVE_KTIME_AFTER, 1, [ktime_after is available])
169 ]) # LIBCFS_KTIME_AFTER
172 # Kernel version 3.12 introduced ktime_before
173 # See linux commit 67cb9366ff5f99868100198efba5ca88aaa6ad25
175 AC_DEFUN([LIBCFS_SRC_KTIME_BEFORE],[
176 LB2_LINUX_TEST_SRC([ktime_before], [
177 #include <linux/hrtimer.h>
178 #include <linux/ktime.h>
180 ktime_t start = ktime_set(0, 0);
183 ktime_before(start, end);
186 AC_DEFUN([LIBCFS_KTIME_BEFORE],[
187 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_before' exist],
189 AC_DEFINE(HAVE_KTIME_BEFORE, 1, [ktime_before is available])
191 ]) # LIBCFS_KTIME_BEFORE
194 # Kernel version 3.12 introduced ktime_compare
196 AC_DEFUN([LIBCFS_SRC_KTIME_COMPARE],[
197 LB2_LINUX_TEST_SRC([ktime_compare], [
198 #include <linux/hrtimer.h>
199 #include <linux/ktime.h>
201 ktime_t start = ktime_set(0, 0);
204 ktime_compare(start, end);
207 AC_DEFUN([LIBCFS_KTIME_COMPARE],[
208 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_compare' exist],
210 AC_DEFINE(HAVE_KTIME_COMPARE, 1,
211 [ktime_compare is available])
213 ]) # LIBCFS_KTIME_COMPARE
216 # FC19 3.12 kernel struct shrinker change
218 AC_DEFUN([LIBCFS_SRC_SHRINKER_COUNT],[
219 LB2_LINUX_TEST_SRC([shrinker_count_objects], [
220 #include <linux/mmzone.h>
221 #include <linux/shrinker.h>
223 struct shrinker shrinker;
225 shrinker.count_objects = NULL;
228 AC_DEFUN([LIBCFS_SHRINKER_COUNT],[
229 LB2_MSG_LINUX_TEST_RESULT([shrinker has 'count_objects'],
230 [shrinker_count_objects], [
231 AC_DEFINE(HAVE_SHRINKER_COUNT, 1,
232 [shrinker has count_objects member])
234 ]) # LIBCFS_SHRINKER_COUNT
237 # Kernel version 3.13 commit aace05097a0fd467230e39acb148be0fdaa90068
238 # add match_wildcard() function.
240 AC_DEFUN([LIBCFS_SRC_MATCH_WILDCARD],[
241 LB2_LINUX_TEST_SRC([match_wildcard], [
242 #include <linux/parser.h>
246 match = match_wildcard(NULL, NULL);
249 AC_DEFUN([LIBCFS_MATCH_WILDCARD],[
250 LB2_MSG_LINUX_TEST_RESULT([does function 'match_wildcard' exist],
252 AC_DEFINE(HAVE_MATCH_WILDCARD, 1,
253 [match_wildcard() is available])
255 ]) # LIBCFS_MATCH_WILDCARD
258 # LIBCFS_HAVE_MAPPING_AS_EXITING_FLAG
260 # v3.14-7405-g91b0abe36a7b added AS_EXITING flag with
261 # mapping_exiting() and mapping_set_exiting()
263 AC_DEFUN([LIBCFS_SRC_HAVE_MAPPING_AS_EXITING_FLAG], [
264 m4_pattern_allow([AS_EXITING])
265 LB2_LINUX_TEST_SRC([mapping_exiting_exists], [
266 #include <linux/pagemap.h>
268 enum mapping_flags flag = AS_EXITING;
272 AC_DEFUN([LIBCFS_HAVE_MAPPING_AS_EXITING_FLAG], [
273 LB2_MSG_LINUX_TEST_RESULT([if enum mapping_flags has AS_EXITING flag],
274 [mapping_exiting_exists], [
275 AC_DEFINE(HAVE_MAPPING_AS_EXITING_FLAG, 1,
276 [enum mapping_flags has AS_EXITING flag])
278 ]) # LIBCFS_HAVE_MAPPING_AS_EXITING_FLAG
281 # LIBCFS_IOV_ITER_HAS_TYPE
283 # kernel 3.15-rc4 commit 71d8e532b1549a478e6a6a8a44f309d050294d00
284 # start adding the tag to iov_iter
286 AC_DEFUN([LIBCFS_SRC_IOV_ITER_HAS_TYPE], [
287 LB2_LINUX_TEST_SRC([iov_iter_has_type_member], [
288 #include <linux/uio.h>
290 struct iov_iter iter = { .type = ITER_KVEC };
295 AC_DEFUN([LIBCFS_IOV_ITER_HAS_TYPE], [
296 LB2_MSG_LINUX_TEST_RESULT([if iov_iter has member type],
297 [iov_iter_has_type_member], [
298 AC_DEFINE(HAVE_IOV_ITER_HAS_TYPE_MEMBER, 1,
299 [if iov_iter has member type])
301 ]) # LIBCFS_IOV_ITER_HAS_TYPE
304 # LIBCFS_HAVE_NS_TO_TIMESPEC64
306 # Kernel version 3.16-rc3 commit a84d1169164b274f13b97a23ff235c000efe3b49
307 # introduced struct __kernel_old_timeval
309 AC_DEFUN([LIBCFS_SRC_HAVE_NS_TO_TIMESPEC64],[
310 LB2_LINUX_TEST_SRC([kernel_old_timeval], [
311 #include <linux/time.h>
313 struct timespec64 kts;
315 kts = ns_to_timespec64(0);
318 AC_DEFUN([LIBCFS_HAVE_NS_TO_TIMESPEC64],[
319 LB2_MSG_LINUX_TEST_RESULT([does 'ns_to_timespec64()' exist],
320 [kernel_old_timeval], [
321 AC_DEFINE(HAVE_NS_TO_TIMESPEC64, 1,
322 [ns_to_timespec64() is available])
324 ]) # LIBCFS_HAVE_NS_TO_TIMESPEC64
329 # Kernel version 3.16 commit b01250856b25f4417c51aa33afc451fbf7da1484
330 # added glob support to the Linux kernel
332 AC_DEFUN([LIBCFS_SRC_HAVE_GLOB],[
333 LB2_LINUX_TEST_SRC([glob_match], [
334 #include <linux/glob.h>
336 return glob_match(NULL, NULL);
339 AC_DEFUN([LIBCFS_HAVE_GLOB],[
340 LB2_MSG_LINUX_TEST_RESULT([does 'glob_match()' exist],
342 AC_DEFINE(HAVE_GLOB, 1,
343 [glob_match() is available])
345 ]) # LIBCFS_HAVE_GLOB
348 # Kernel version 3.17 changed hlist_add_after to
351 AC_DEFUN([LIBCFS_SRC_HLIST_ADD_AFTER],[
352 LB2_LINUX_TEST_SRC([hlist_add_after], [
353 #include <linux/list.h>
355 hlist_add_after(NULL, NULL);
358 AC_DEFUN([LIBCFS_HLIST_ADD_AFTER],[
359 LB2_MSG_LINUX_TEST_RESULT([does function 'hlist_add_after' exist],
361 AC_DEFINE(HAVE_HLIST_ADD_AFTER, 1,
362 [hlist_add_after is available])
364 ]) # LIBCFS_HLIST_ADD_AFTER
367 # Kernel version 3.17 introduced struct timespec64
369 AC_DEFUN([LIBCFS_SRC_TIMESPEC64],[
370 LB2_LINUX_TEST_SRC([timespec64], [
371 #include <linux/time.h>
373 struct timespec64 ts;
379 AC_DEFUN([LIBCFS_TIMESPEC64],[
380 LB2_MSG_LINUX_TEST_RESULT([does 'struct timespec64' exist],
382 AC_DEFINE(HAVE_TIMESPEC64, 1,
383 ['struct timespec64' is available])
385 ]) # LIBCFS_TIMESPEC64
388 # Kernel version 3.17 introduced ktime_get_real_ts64
390 AC_DEFUN([LIBCFS_SRC_KTIME_GET_REAL_TS64],[
391 LB2_LINUX_TEST_SRC([ktime_get_real_ts64], [
392 #include <linux/ktime.h>
394 struct timespec64 *ts = NULL;
396 ktime_get_real_ts64(ts);
399 AC_DEFUN([LIBCFS_KTIME_GET_REAL_TS64],[
400 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_get_real_ts64' exist],
401 [ktime_get_real_ts64], [
402 AC_DEFINE(HAVE_KTIME_GET_REAL_TS64, 1,
403 ['ktime_get_real_ts64' is available])
405 ]) # LIBCFS_KTIME_GET_REAL_TS64
408 # Kernel version 3.17 introduced ktime_get_real_seconds
410 AC_DEFUN([LIBCFS_SRC_KTIME_GET_REAL_SECONDS],[
411 LB2_LINUX_TEST_SRC([ktime_get_real_seconds], [
412 #include <linux/hrtimer.h>
413 #include <linux/ktime.h>
417 now = ktime_get_real_seconds();
420 AC_DEFUN([LIBCFS_KTIME_GET_REAL_SECONDS],[
421 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_get_real_ts64' exist],
422 [ktime_get_real_seconds], [
423 AC_DEFINE(HAVE_KTIME_GET_REAL_SECONDS, 1,
424 ['ktime_get_real_seconds' is available])
426 ]) # LIBCFS_KTIME_GET_REAL_SECONDS
429 # Kernel version 3.17 created ktime_get_ns wrapper
431 AC_DEFUN([LIBCFS_SRC_KTIME_GET_NS],[
432 LB2_LINUX_TEST_SRC([ktime_get_ns], [
433 #include <linux/hrtimer.h>
434 #include <linux/ktime.h>
438 nanoseconds = ktime_get_ns();
441 AC_DEFUN([LIBCFS_KTIME_GET_NS],[
442 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_get_ns' exist],
444 AC_DEFINE(NEED_KTIME_GET_NS, 1,
445 ['ktime_get_ns' is not available])
447 ]) # LIBCFS_KTIME_GET_NS
450 # Kernel version 3.17 created ktime_get_real_ns wrapper
452 AC_DEFUN([LIBCFS_SRC_KTIME_GET_REAL_NS],[
453 LB2_LINUX_TEST_SRC([ktime_get_real_ns], [
454 #include <linux/hrtimer.h>
455 #include <linux/ktime.h>
459 nanoseconds = ktime_get_real_ns();
462 AC_DEFUN([LIBCFS_KTIME_GET_REAL_NS],[
463 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_get_real_ns' exist],
464 [ktime_get_real_ns], [],[
465 AC_DEFINE(NEED_KTIME_GET_REAL_NS, 1,
466 ['ktime_get_real_ns' is not available])
468 ]) # LIBCFS_KTIME_GET_REAL_NS
471 # Kernel version 3.17 introduced ktime_to_timespec64
473 AC_DEFUN([LIBCFS_SRC_KTIME_TO_TIMESPEC64],[
474 LB2_LINUX_TEST_SRC([ktime_to_timespec64], [
475 #include <linux/hrtimer.h>
476 #include <linux/ktime.h>
478 ktime_t now = ktime_set(0, 0);
479 struct timespec64 ts;
481 ts = ktime_to_timespec64(now);
484 AC_DEFUN([LIBCFS_KTIME_TO_TIMESPEC64],[
485 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_to_timespec64' exist],
486 [ktime_to_timespec64], [
487 AC_DEFINE(HAVE_KTIME_TO_TIMESPEC64, 1,
488 ['ktime_to_timespec64' is available])
490 ]) # LIBCFS_KTIME_TO_TIMESPEC64
493 # Kernel version 3.17 introduced timespec64_sub
495 AC_DEFUN([LIBCFS_SRC_TIMESPEC64_SUB],[
496 LB2_LINUX_TEST_SRC([timespec64_sub], [
497 #include <linux/time.h>
499 struct timespec64 later = { }, earlier = { }, diff;
501 diff = timespec64_sub(later, earlier);
504 AC_DEFUN([LIBCFS_TIMESPEC64_SUB],[
505 LB2_MSG_LINUX_TEST_RESULT([does function 'timespec64_sub' exist],
507 AC_DEFINE(HAVE_TIMESPEC64_SUB, 1,
508 ['timespec64_sub' is available])
510 ]) # LIBCFS_TIMESPEC64_SUB
513 # Kernel version 3.17 introduced timespec64_to_ktime
515 AC_DEFUN([LIBCFS_SRC_TIMESPEC64_TO_KTIME],[
516 LB2_LINUX_TEST_SRC([timespec64_to_ktime], [
517 #include <linux/ktime.h>
519 struct timespec64 ts;
522 now = timespec64_to_ktime(ts);
525 AC_DEFUN([LIBCFS_TIMESPEC64_TO_KTIME],[
526 LB2_MSG_LINUX_TEST_RESULT([does function 'timespec64_to_ktime' exist],
527 [timespec64_to_ktime], [
528 AC_DEFINE(HAVE_TIMESPEC64_TO_KTIME, 1,
529 ['timespec64_to_ktime' is available])
531 ]) # LIBCFS_TIMESPEC64_TO_KTIME
534 # Kernel version 3.19 introduced ktime_get_seconds
536 AC_DEFUN([LIBCFS_SRC_KTIME_GET_SECONDS],[
537 LB2_LINUX_TEST_SRC([ktime_get_seconds], [
538 #include <linux/ktime.h>
542 now = ktime_get_seconds();
545 AC_DEFUN([LIBCFS_KTIME_GET_SECONDS],[
546 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_get_seconds' exist],
547 [ktime_get_seconds], [
548 AC_DEFINE(HAVE_KTIME_GET_SECONDS, 1,
549 ['ktime_get_seconds' is available])
551 ]) # LIBCFS_KTIME_GET_SECONDS
554 # Kernel version 3.19 commit v3.18-rc2-26-g61ada528dea0
555 # introduce wait_woken()
557 AC_DEFUN([LIBCFS_SRC_WAIT_WOKEN],[
558 LB2_LINUX_TEST_SRC([wait_woken], [
559 #include <linux/wait.h>
561 wait_woken(NULL, 0, 0);
564 AC_DEFUN([LIBCFS_WAIT_WOKEN],[
565 LB2_MSG_LINUX_TEST_RESULT([does function 'wait_woken' exist],
567 AC_DEFINE(HAVE_WAIT_WOKEN, 1,
568 ['wait_woken, is available'])
570 ]) # LIBCFS_WAIT_WOKEN
573 # Kernel version 4.0 commit 41fbf3b39d5eca01527338b4d0ee15ee1ae1023c
574 # introduced the helper function ktime_ms_delta.
576 AC_DEFUN([LIBCFS_SRC_KTIME_MS_DELTA],[
577 LB2_LINUX_TEST_SRC([ktime_ms_delta], [
578 #include <linux/ktime.h>
580 ktime_t start = ktime_set(0, 0);
583 ktime_ms_delta(start, end);
586 AC_DEFUN([LIBCFS_KTIME_MS_DELTA],[
587 LB2_MSG_LINUX_TEST_RESULT([does function 'ktime_ms_delta' exist],
589 AC_DEFINE(HAVE_KTIME_MS_DELTA, 1,
590 ['ktime_ms_delta' is available])
592 ]) # LIBCFS_KTIME_MS_DELTA
595 # Kernel version 4.1 commit b51d23e4e9fea6f264d39535c2a62d1f51e7ccc3
596 # create per module locks which added kernel_param_[un]lock(). Older
597 # kernels you have to use __kernel_param_[un]lock(). In that case its
598 # a global lock for all modules but that is okay since its a rare event.
600 AC_DEFUN([LIBCFS_SRC_KERNEL_PARAM_LOCK],[
601 LB2_LINUX_TEST_SRC([kernel_param_lock], [
602 #include <linux/moduleparam.h>
604 kernel_param_lock(NULL);
605 kernel_param_unlock(NULL);
608 AC_DEFUN([LIBCFS_KERNEL_PARAM_LOCK],[
609 LB2_MSG_LINUX_TEST_RESULT([does function 'kernel_param_[un]lock' exist],
610 [kernel_param_lock], [
611 AC_DEFINE(HAVE_KERNEL_PARAM_LOCK, 1,
612 ['kernel_param_[un]lock' is available])
614 ]) # LIBCFS_KERNEL_PARAM_LOCK
617 # LIBCFS_STRSCPY_EXISTS
619 # Linux commit v4.2-rc1-2-g30035e45753b
620 # string: provide strscpy()
622 # If strscpy exists, prefer it over strlcpy
624 AC_DEFUN([LIBCFS_SRC_STRSCPY_EXISTS], [
625 LB2_LINUX_TEST_SRC([strscpy_exists], [
626 #include <linux/string.h>
628 strscpy((char *)NULL, (const char *)NULL, 0);
631 AC_DEFUN([LIBCFS_STRSCPY_EXISTS], [
632 LB2_MSG_LINUX_TEST_RESULT([if kernel strscpy is available],
634 AC_DEFINE(HAVE_STRSCPY, 1,
635 [kernel strscpy is available])
637 ]) # LIBCFS_STRSCPY_EXISTS
640 # Kernel version 4.2 changed topology_thread_cpumask
641 # to topology_sibling_cpumask
643 AC_DEFUN([LIBCFS_SRC_HAVE_TOPOLOGY_SIBLING_CPUMASK],[
644 LB2_LINUX_TEST_SRC([topology_sibling_cpumask], [
645 #include <linux/topology.h>
647 const struct cpumask *mask;
649 mask = topology_sibling_cpumask(0);
652 AC_DEFUN([LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK],[
653 LB2_MSG_LINUX_TEST_RESULT([does function 'topology_sibling_cpumask' exist],
654 [topology_sibling_cpumask], [
655 AC_DEFINE(HAVE_TOPOLOGY_SIBLING_CPUMASK, 1,
656 [topology_sibling_cpumask is available])
658 ]) # LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
661 # Kernel version 4.4 commit ef951599074ba4fad2d0efa0a977129b41e6d203
662 # introduced kstrtobool and kstrtobool_from_user.
664 AC_DEFUN([LIBCFS_SRC_KSTRTOBOOL_FROM_USER], [
665 LB2_LINUX_TEST_SRC([kstrtobool_from_user], [
666 #include <linux/kernel.h>
669 return kstrtobool_from_user(NULL, 0, &result);
672 AC_DEFUN([LIBCFS_KSTRTOBOOL_FROM_USER], [
673 LB2_MSG_LINUX_TEST_RESULT([if Linux kernel has 'kstrtobool_from_user'],
674 [kstrtobool_from_user], [
675 AC_DEFINE(HAVE_KSTRTOBOOL_FROM_USER, 1,
676 [kernel has kstrtobool_from_user])
678 ]) # LIBCFS_KSTRTOBOOL_FROM_USER
681 # LIBCFS_NETLINK_CALLBACK_START
683 # Kernel version 4.4-rc3 commit fc9e50f5a5a4e1fa9ba2756f745a13e693cf6a06
684 # added a start function callback for struct netlink_callback
686 AC_DEFUN([LIBCFS_SRC_NETLINK_CALLBACK_START], [
687 LB2_LINUX_TEST_SRC([cb_start], [
688 #include <net/genetlink.h>
695 AC_DEFUN([LIBCFS_NETLINK_CALLBACK_START], [
696 LB2_MSG_LINUX_TEST_RESULT([if struct genl_ops has start callback],
698 AC_DEFINE(HAVE_NETLINK_CALLBACK_START, 1,
699 [struct genl_ops has 'start' callback])
701 ]) # LIBCFS_NETLINK_CALLBACK_START
704 # Kernel version 4.5-rc1 commit d12481bc58fba89427565f8592e88446ec084a24
705 # added crypto hash helpers
707 AC_DEFUN([LIBCFS_SRC_CRYPTO_HASH_HELPERS], [
708 LB2_LINUX_TEST_SRC([crypto_hash_helpers], [
709 #include <crypto/hash.h>
711 crypto_ahash_alg_name(NULL);
712 crypto_ahash_driver_name(NULL);
715 AC_DEFUN([LIBCFS_CRYPTO_HASH_HELPERS], [
716 LB2_MSG_LINUX_TEST_RESULT([does crypto hash helper functions exist],
717 [crypto_hash_helpers], [
718 AC_DEFINE(HAVE_CRYPTO_HASH_HELPERS, 1,
719 [crypto hash helper functions are available])
721 ]) # LIBCFS_CRYPTO_HASH_HELPERS
724 # Kernel version 4.5-rc1 commit 3502cad73c4bbf8f6365d539e814159275252c59
725 # introduced rhashtable_replace_fast
727 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_REPLACE], [
728 LB2_LINUX_TEST_SRC([rhashtable_replace_fast], [
729 #include <linux/rhashtable.h>
731 const struct rhashtable_params params = { 0 };
733 rhashtable_replace_fast(NULL, NULL, NULL, params);
736 AC_DEFUN([LIBCFS_RHASHTABLE_REPLACE], [
737 LB2_MSG_LINUX_TEST_RESULT([if 'rhashtable_replace_fast' exists],
738 [rhashtable_replace_fast], [
739 AC_DEFINE(HAVE_RHASHTABLE_REPLACE, 1,
740 [rhashtable_replace_fast() is available])
742 ]) # LIBCFS_RHASHTABLE_REPLACE
745 # Kernel version 4.5-rc3 commit 2fe829aca9d7bed5fd6b49c6a1452e5e486b6cc3dd
746 # made kset_find_obj() exportable to modules
748 AC_DEFUN([LIBCFS_EXPORT_KSET_FIND_OBJ], [
749 LB_CHECK_EXPORT([kset_find_obj], [lib/kobject.c],
750 [AC_DEFINE(HAVE_KSET_FIND_OBJ, 1,
751 [kset_find_obj is exported by the kernel])])
752 ]) # LIBCFS_EXPORT_KSET_FIND_OBJ
755 # Kernel version 4.6+ commit ef703f49a6c5b909a85149bb6625c4ed0d697186
756 # fixed the brokenness of hash_64(). The fix removed GOLDEN_RATIO_PRIME_64
757 # since it was a poor prime value.
759 AC_DEFUN([LIBCFS_SRC_BROKEN_HASH_64], [
760 LB2_LINUX_TEST_SRC([broken_hash_64], [
761 #include <linux/hash.h>
763 int tmp = GOLDEN_RATIO_PRIME_64;
766 AC_DEFUN([LIBCFS_BROKEN_HASH_64], [
767 LB2_MSG_LINUX_TEST_RESULT([kernel has fixed hash_64()],
769 AC_DEFINE(HAVE_BROKEN_HASH_64, 1, [kernel hash_64() is broken])
771 ]) # LIBCFS_BROKEN_HASH_64
774 # LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
776 # linux 4.6 kernel changed stacktrace_ops address to return an int
778 AC_DEFUN([LIBCFS_SRC_STACKTRACE_OPS_ADDRESS_RETURN_INT], [
779 LB2_LINUX_TEST_SRC([stacktrace_ops_address_return_int], [
780 #include <asm/stacktrace.h>
784 rc = ((struct stacktrace_ops *)0)->address(NULL, 0, 0);
787 AC_DEFUN([LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT], [
788 LB2_MSG_LINUX_TEST_RESULT([if 'struct stacktrace_ops' address function returns an int],
789 [stacktrace_ops_address_return_int], [
790 AC_DEFINE(STACKTRACE_OPS_ADDRESS_RETURN_INT, 1,
791 ['struct stacktrace_ops' address function returns an int])
793 ]) # LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
796 # Kernel version 4.6 removed both struct task_struct and struct mm_struct
797 # arguments to get_user_pages
799 AC_DEFUN([LIBCFS_SRC_GET_USER_PAGES_6ARG], [
800 LB2_LINUX_TEST_SRC([get_user_pages_6arg], [
801 #include <linux/mm.h>
805 rc = get_user_pages(0, 0, 0, 0, NULL, NULL);
808 AC_DEFUN([LIBCFS_GET_USER_PAGES_6ARG], [
809 LB2_MSG_LINUX_TEST_RESULT([if 'get_user_pages()' takes 6 arguments],
810 [get_user_pages_6arg], [
811 AC_DEFINE(HAVE_GET_USER_PAGES_6ARG, 1,
812 [get_user_pages takes 6 arguments])
814 ]) # LIBCFS_GET_USER_PAGES_6ARG
819 # 4.6 kernel created stringhash.h which moved stuff out of dcache.h
820 # commit f4bcbe792b8f434e32487cff9d9e30ab45a3ce02
822 AC_DEFUN([LIBCFS_SRC_STRINGHASH], [
823 LB2_CHECK_LINUX_HEADER_SRC([linux/stringhash.h], [-Werror])
825 AC_DEFUN([LIBCFS_STRINGHASH], [
826 LB2_CHECK_LINUX_HEADER_RESULT([linux/stringhash.h], [
827 AC_DEFINE(HAVE_STRINGHASH, 1,
828 [stringhash.h is present])
830 ]) # LIBCFS_STRINGHASH
833 # LIBCFS_RHASHTABLE_INSERT_FAST
835 # 4.7+ kernel commit 5ca8cc5bf11faed257c762018aea9106d529232f
836 # changed __rhashtable_insert_fast to support the new function
837 # rhashtable_lookup_get_insert_key().
839 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_INSERT_FAST], [
840 LB2_LINUX_TEST_SRC([rhashtable_insert_fast], [
841 #include <linux/rhashtable.h>
843 const struct rhashtable_params params = { 0 };
846 rc = __rhashtable_insert_fast(NULL, NULL, NULL, params);
850 AC_DEFUN([LIBCFS_RHASHTABLE_INSERT_FAST], [
851 LB2_MSG_LINUX_TEST_RESULT([if internal '__rhashtable_insert_fast()' returns int],
852 [rhashtable_insert_fast], [
853 AC_DEFINE(HAVE_HASHTABLE_INSERT_FAST_RETURN_INT, 1,
854 ['__rhashtable_insert_fast()' returns int])
856 ]) # LIBCFS_RHASHTABLE_INSERT_FAST
859 # LIBCFS_HAVE_NR_ZONE_WRITE_PENDING
861 # kernel v4.7-5966-g5a1c84b404a7
862 # mm: remove reclaim and compaction retry approximations
864 AC_DEFUN([LIBCFS_SRC_HAVE_NR_ZONE_WRITE_PENDING], [
865 LB2_LINUX_TEST_SRC([nr_zone_write_pending_exists], [
866 #include <linux/mmzone.h>
868 enum zone_stat_item item = NR_ZONE_WRITE_PENDING;
872 AC_DEFUN([LIBCFS_HAVE_NR_ZONE_WRITE_PENDING], [
873 AC_MSG_CHECKING([if NR_ZONE_WRITE_PENDING is available])
874 LB2_LINUX_TEST_RESULT([nr_zone_write_pending_exists], [
875 AC_DEFINE(HAVE_NR_ZONE_WRITE_PENDING, 1,
876 [NR_ZONE_WRITE_PENDING is still in use.])
878 ]) # LIBCFS_HAVE_NR_ZONE_WRITE_PENDING
881 # Kernel version 4.7-rc1 commit 8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697
882 # added 3rd arg to rhashtable_walk_init
884 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_WALK_INIT_3ARG], [
885 LB2_LINUX_TEST_SRC([rhashtable_walk_init], [
886 #include <linux/gfp.h>
887 #include <linux/rhashtable.h>
889 rhashtable_walk_init(NULL, NULL, GFP_KERNEL);
892 AC_DEFUN([LIBCFS_RHASHTABLE_WALK_INIT_3ARG], [
893 LB2_MSG_LINUX_TEST_RESULT([if 'rhashtable_walk_init' has 3 args],
894 [rhashtable_walk_init], [
895 AC_DEFINE(HAVE_3ARG_RHASHTABLE_WALK_INIT, 1,
896 [rhashtable_walk_init() has 3 args])
898 ]) # LIBCFS_RHASHTABLE_WALK_INIT_3ARG
901 # Kernel version 4.8-rc6 commit ca26893f05e86497a86732768ec53cd38c0819ca
902 # introduced rhashtable_lookup
904 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_LOOKUP], [
905 LB2_LINUX_TEST_SRC([rhashtable_lookup], [
906 #include <linux/rhashtable.h>
908 const struct rhashtable_params params = { 0 };
911 ret = rhashtable_lookup(NULL, NULL, params);
914 AC_DEFUN([LIBCFS_RHASHTABLE_LOOKUP], [
915 LB2_MSG_LINUX_TEST_RESULT([if 'rhashtable_lookup' exist],
916 [rhashtable_lookup], [
917 AC_DEFINE(HAVE_RHASHTABLE_LOOKUP, 1,
918 [rhashtable_lookup() is available])
920 ]) # LIBCFS_RHASHTABLE_LOOKUP
924 # Kernel version 4.8-rc6 commit ca26893f05e86497a86732768ec53cd38c0819ca
925 # created the rhlist interface to allow inserting duplicate objects
926 # into the same table.
928 AC_DEFUN([LIBCFS_SRC_RHLTABLE], [
929 LB2_LINUX_TEST_SRC([rhtable], [
930 #include <linux/rhashtable.h>
932 struct rhltable *hlt = NULL;
934 rhltable_destroy(hlt);
937 AC_DEFUN([LIBCFS_RHLTABLE], [
938 LB2_MSG_LINUX_TEST_RESULT([does 'struct rhltable' exist],
940 AC_DEFINE(HAVE_RHLTABLE, 1, [struct rhltable exist])
945 # LIBCFS_STACKTRACE_OPS
947 # Kernel version 4.8 commit c8fe4609827aedc9c4b45de80e7cdc8ccfa8541b
948 # removed both struct stacktrace_ops and dump_trace() function
950 AC_DEFUN([LIBCFS_SRC_STACKTRACE_OPS], [
951 LB2_LINUX_TEST_SRC([stacktrace_ops], [
954 #include <asm/stacktrace.h>
956 struct stacktrace_ops ops;
960 AC_DEFUN([LIBCFS_STACKTRACE_OPS], [
961 LB2_MSG_LINUX_TEST_RESULT([if 'struct stacktrace_ops' exists],
963 AC_DEFINE(HAVE_STACKTRACE_OPS, 1,
964 [struct stacktrace_ops exists])
966 ]) # LIBCFS_STACKTRACE_OPS
969 # LIBCFS_RHASHTABLE_WALK_ENTER
971 # Kernel version 4.9-rc1 commit 246779dd090bd1b74d2652b3a6ca7759f593b27a
972 # introduced rhashtable_walk_enter
974 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_WALK_ENTER], [
975 LB2_LINUX_TEST_SRC([rhashtable_walk_enter], [
976 #include <linux/rhashtable.h>
978 rhashtable_walk_enter(NULL, NULL);
981 AC_DEFUN([LIBCFS_RHASHTABLE_WALK_ENTER], [
982 LB2_MSG_LINUX_TEST_RESULT([if 'rhashtable_walk_enter' exists],
983 [rhashtable_walk_enter], [
984 AC_DEFINE(HAVE_RHASHTABLE_WALK_ENTER, 1,
985 [rhashtable_walk_enter() is available])
987 ]) # LIBCFS_RHASHTABLE_WALK_ENTER
990 # Kernel version 4.9 commit 768ae309a96103ed02eb1e111e838c87854d8b51
991 # mm: replace get_user_pages() write/force parameters with gup_flags
993 AC_DEFUN([LIBCFS_SRC_GET_USER_PAGES_GUP_FLAGS], [
994 LB2_LINUX_TEST_SRC([get_user_pages_gup_flags], [
995 #include <linux/mm.h>
998 rc = get_user_pages(0, 0, FOLL_WRITE, NULL, NULL);
1001 AC_DEFUN([LIBCFS_GET_USER_PAGES_GUP_FLAGS], [
1002 LB2_MSG_LINUX_TEST_RESULT([if 'get_user_pages()' takes gup_flags in arguments],
1003 [get_user_pages_gup_flags], [
1004 AC_DEFINE(HAVE_GET_USER_PAGES_GUP_FLAGS, 1,
1005 [get_user_pages takes gup_flags in arguments])
1007 ]) # LIBCFS_GET_USER_PAGES_GUP_FLAGS
1010 # Kernel version 4.10 commit 7b737965b33188bd3dbb44e938535c4006d97fbb
1011 # libcfs: Convert to hotplug state machine
1013 AC_DEFUN([LIBCFS_SRC_HOTPLUG_STATE_MACHINE], [
1014 LB2_LINUX_TEST_SRC([cpu_hotplug_state_machine], [
1015 #include <linux/cpuhotplug.h>
1017 cpuhp_remove_state(CPUHP_LUSTRE_CFS_DEAD);
1020 AC_DEFUN([LIBCFS_HOTPLUG_STATE_MACHINE], [
1021 LB2_MSG_LINUX_TEST_RESULT([if libcfs supports CPU hotplug state machine],
1022 [cpu_hotplug_state_machine], [
1023 AC_DEFINE(HAVE_HOTPLUG_STATE_MACHINE, 1,
1024 [hotplug state machine is supported])
1026 ]) # LIBCFS_HOTPLUG_STATE_MACHINE
1031 # Kernel version 4.10-rc3 commit f405df5de3170c00e5c54f8b7cf4766044a032ba
1032 # introduced refcount_t which is atomic_t plus over flow guards.
1034 AC_DEFUN([LIBCFS_SRC_REFCOUNT_T], [
1035 LB2_CHECK_LINUX_HEADER_SRC([linux/refcount.h], [-Werror])
1037 AC_DEFUN([LIBCFS_REFCOUNT_T], [
1038 LB2_CHECK_LINUX_HEADER_RESULT([linux/refcount.h], [
1039 AC_DEFINE(HAVE_REFCOUNT_T, 1,
1040 [refcount_t is supported])
1042 ]) # LIBCFS_REFCOUNT_T
1045 # Kernel version 4.12 commit 499118e966f1d2150bd66647c8932343c4e9a0b8
1046 # introduce memalloc_noreclaim_{save,restore}
1048 AC_DEFUN([LIBCFS_SRC_MEMALLOC_NORECLAIM], [
1049 LB2_LINUX_TEST_SRC([memalloc_noreclaim], [
1050 #include <linux/sched/mm.h>
1052 int flag = memalloc_noreclaim_save();
1053 memalloc_noreclaim_restore(flag);
1056 AC_DEFUN([LIBCFS_MEMALLOC_NORECLAIM], [
1057 LB2_MSG_LINUX_TEST_RESULT([if memalloc_noreclaim_{save,restore} exist],
1058 [memalloc_noreclaim], [
1059 AC_DEFINE(HAVE_MEMALLOC_RECLAIM, 1,
1060 [memalloc_noreclaim_{save,restore}() is supported])
1062 ]) # LIBCFS_MEMALLOC_NORECLAIM
1065 # LIBCFS_SCHED_HEADERS
1067 # 4.11 has broken up sched.h into more headers.
1069 AC_DEFUN([LIBCFS_SRC_SCHED_HEADERS], [
1070 LB2_CHECK_LINUX_HEADER_SRC([linux/sched/signal.h], [-Werror])
1072 AC_DEFUN([LIBCFS_SCHED_HEADERS], [
1073 LB2_CHECK_LINUX_HEADER_RESULT([linux/sched/signal.h], [
1074 AC_DEFINE(HAVE_SCHED_HEADERS, 1,
1075 [linux/sched header directory exist])
1077 ]) # LIBCFS_SCHED_HEADERS
1080 # Kernel version 4.11-rc1 commit 2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e
1081 # introduce kref_read
1083 AC_DEFUN([LIBCFS_SRC_KREF_READ], [
1084 LB2_LINUX_TEST_SRC([kref_read], [
1085 #include <linux/kref.h>
1090 AC_DEFUN([LIBCFS_KREF_READ], [
1091 LB2_MSG_LINUX_TEST_RESULT([if 'kref_read' exists],
1093 AC_DEFINE(HAVE_KREF_READ, 1, [kref_read() is available])
1095 ]) # LIBCFS_KREF_READ
1098 # Kernel version 4.11-rc1 commit da20420f83ea0fbcf3d03afda08d971ea1d8a356
1099 # introduced rht_bucket_var
1101 AC_DEFUN([LIBCFS_SRC_RHT_BUCKET_VAR], [
1102 LB2_LINUX_TEST_SRC([rht_bucket_var], [
1103 #include <linux/rhashtable.h>
1105 rht_bucket_var(NULL, 0);
1108 AC_DEFUN([LIBCFS_RHT_BUCKET_VAR], [
1109 LB2_MSG_LINUX_TEST_RESULT([if 'rht_bucket_var' exists],
1111 AC_DEFINE(HAVE_RHT_BUCKET_VAR, 1,
1112 [rht_bucket_var() is available])
1114 ]) # LIBCFS_RHT_BUCKET_VAR
1117 # Kernel version 4.11-rc5 commit fceb6435e85298f747fee938415057af837f5a8a
1118 # began the enhanchement of Netlink with extended ACK struct for advanced
1119 # error handling. By commit 7ab606d1609dd6dfeae9c8ad0a8a4e051d831e46 we
1120 # had full support for this new feature.
1122 AC_DEFUN([LIBCFS_SRC_NL_EXT_ACK], [
1123 LB2_LINUX_TEST_SRC([netlink_ext_ack], [
1124 #include <net/genetlink.h>
1126 struct genl_info info;
1131 AC_DEFUN([LIBCFS_NL_EXT_ACK], [
1132 LB2_MSG_LINUX_TEST_RESULT([if Netlink supports netlink_ext_ack],
1133 [netlink_ext_ack], [
1134 AC_DEFINE(HAVE_NL_PARSE_WITH_EXT_ACK, 1,
1135 [netlink_ext_ack is an argument to nla_parse type function])
1137 ]) # LIBCFS_NL_EXT_ACK
1140 # Kernel version 4.11 commit f9fe1c12d126f9887441fa5bb165046f30ddd4b5
1141 # introduced rhashtable_lookup_get_insert_fast
1143 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_LOOKUP_GET_INSERT_FAST], [
1144 LB2_LINUX_TEST_SRC([rhashtable_lookup_get_insert_fast], [
1145 #include <linux/rhashtable.h>
1147 const struct rhashtable_params params = { 0 };
1150 ret = rhashtable_lookup_get_insert_fast(NULL, NULL, params);
1153 AC_DEFUN([LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST], [
1154 LB2_MSG_LINUX_TEST_RESULT([if 'rhashtable_lookup_get_insert_fast' exist],
1155 [rhashtable_lookup_get_insert_fast], [
1156 AC_DEFINE(HAVE_RHASHTABLE_LOOKUP_GET_INSERT_FAST, 1,
1157 [rhashtable_lookup_get_insert_fast() is available])
1159 ]) # LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST
1162 # Kernel version 4.12-rc2 8f553c498e1772cccb39a114da4a498d22992758
1163 # provide proper CPU hotplug locking
1165 AC_DEFUN([LIBCFS_SRC_CPUS_READ_LOCK], [
1166 LB2_LINUX_TEST_SRC([cpu_read_lock], [
1167 #include <linux/cpu.h>
1173 AC_DEFUN([LIBCFS_CPUS_READ_LOCK], [
1174 LB2_MSG_LINUX_TEST_RESULT([if 'cpus_read_[un]lock' exist],
1176 AC_DEFINE(HAVE_CPUS_READ_LOCK, 1, ['cpus_read_lock' exist])
1178 ]) # LIBCFS_CPUS_READ_LOCK
1181 # LIBCFS_HAVE_PROCESSOR_HEADER
1183 # Kernel version 4.12-rc3 commit fd851a3cdc196bfc1d229b5f22369069af532bf8
1184 # introduce processor.h
1186 AC_DEFUN([LIBCFS_SRC_HAVE_PROCESSOR_HEADER], [
1187 LB2_CHECK_LINUX_HEADER_SRC([linux/processor.h], [-Werror])
1189 AC_DEFUN([LIBCFS_HAVE_PROCESSOR_HEADER], [
1190 LB2_CHECK_LINUX_HEADER_RESULT([linux/processor.h], [
1191 AC_DEFINE(HAVE_PROCESSOR_H, 1,
1192 [processor.h is present])
1194 ]) # LIBCFS_HAVE_PROCESSOR_HEADER
1197 # LIBCFS_HAVE_WAIT_BIT_HEADER
1199 # Kernel verison 4.12-rc6 commit 5dd43ce2f69d42a71dcacdb13d17d8c0ac1fe8f7
1200 # created wait_bit.h
1202 AC_DEFUN([LIBCFS_SRC_HAVE_WAIT_BIT_HEADER], [
1203 LB2_CHECK_LINUX_HEADER_SRC([linux/wait_bit.h], [-Werror])
1205 AC_DEFUN([LIBCFS_HAVE_WAIT_BIT_HEADER], [
1206 LB2_CHECK_LINUX_HEADER_RESULT([linux/wait_bit.h], [
1207 AC_DEFINE(HAVE_WAIT_BIT_HEADER_H, 1,
1208 [wait_bit.h is present])
1210 ]) # LIBCFS_HAVE_PROCESSOR_HEADER
1213 # Kernel version 4.12-rc6 commmit 2055da97389a605c8a00d163d40903afbe413921
1215 # struct wait_queue_head::task_list => ::head
1216 # struct wait_queue_entry::task_list => ::entry
1218 AC_DEFUN([LIBCFS_SRC_WAIT_QUEUE_TASK_LIST_RENAME], [
1219 LB2_LINUX_TEST_SRC([wait_queue_task_list], [
1220 #include <linux/wait.h>
1222 wait_queue_head_t e;
1224 INIT_LIST_HEAD(&e.head);
1227 AC_DEFUN([LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME], [
1228 LB2_MSG_LINUX_TEST_RESULT([if linux wait_queue_head list_head is named head],
1229 [wait_queue_task_list], [
1230 AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY_LIST, 1,
1231 [linux wait_queue_head_t list_head is name head])
1233 ]) # LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME
1236 # LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS
1238 # Kernel version v4.12-rc6-23-g76c85ddc4695
1239 # sched/wait: Standardize wait_bit_queue naming
1241 # renamed struct wait_bit_queue => wait_bit_queue_entry
1243 AC_DEFUN([LIBCFS_SRC_WAIT_BIT_QUEUE_ENTRY_EXISTS], [
1244 LB2_LINUX_TEST_SRC([struct_wait_bit_queue_entry_exists], [
1245 #include <linux/wait.h>
1246 #if HAVE_WAIT_BIT_HEADER_H
1247 #include <linux/wait_bit.h>
1250 struct wait_bit_queue_entry entry;
1251 memset(&entry, 0, sizeof(entry));
1254 AC_DEFUN([LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS], [
1255 LB2_MSG_LINUX_TEST_RESULT([if struct wait_bit_queue_entry exists],
1256 [struct_wait_bit_queue_entry_exists], [
1257 AC_DEFINE(HAVE_WAIT_BIT_QUEUE_ENTRY, 1,
1258 [if struct wait_bit_queue_entry exists])
1260 ]) # LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS
1265 # Kernel version 4.13-rc1 commit 2cf0c8b3e6942ecafe6ebb1a6d0328a81641bf39
1266 # created nla_strdup(). This is needed since push strings can be
1269 AC_DEFUN([LIBCFS_SRC_NLA_STRDUP], [
1270 LB2_LINUX_TEST_SRC([nla_strdup], [
1271 #include <net/netlink.h>
1273 char *tmp = nla_strdup(NULL, GFP_KERNEL);
1277 AC_DEFUN([LIBCFS_NLA_STRDUP], [
1278 LB2_MSG_LINUX_TEST_RESULT([if 'nla_strdup()' exists],
1280 AC_DEFINE(HAVE_NLA_STRDUP, 1,
1281 ['nla_strdup' is available])
1283 ]) # LIBCFS_NLA_STRDUP
1286 # LIBCFS_WAIT_QUEUE_ENTRY
1288 # Kernel version 4.13 ac6424b981bce1c4bc55675c6ce11bfe1bbfa64f
1289 # Rename wait_queue_t => wait_queue_entry_t
1291 AC_DEFUN([LIBCFS_SRC_WAIT_QUEUE_ENTRY], [
1292 LB2_LINUX_TEST_SRC([wait_queue_entry], [
1293 #include <linux/wait.h>
1295 wait_queue_entry_t e;
1300 AC_DEFUN([LIBCFS_WAIT_QUEUE_ENTRY], [
1301 LB2_MSG_LINUX_TEST_RESULT([if 'wait_queue_entry_t' exists],
1302 [wait_queue_entry], [
1303 AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY, 1,
1304 ['wait_queue_entry_t' is available])
1306 ]) # LIBCFS_WAIT_QUEUE_ENTRY
1309 # LIBCFS_NEW_KERNEL_WRITE
1311 # Kernel version 4.14 e13ec939e96b13e664bb6cee361cc976a0ee621a
1312 # changed kernel_write prototype to make is plug compatible
1313 # with the unexported vfs_write()
1315 AC_DEFUN([LIBCFS_SRC_NEW_KERNEL_WRITE], [
1316 LB2_LINUX_TEST_SRC([kernel_write_match], [
1317 #include <linux/fs.h>
1319 const void *buf = NULL;
1321 return kernel_write(NULL, buf, 0, &pos);
1324 AC_DEFUN([LIBCFS_NEW_KERNEL_WRITE], [
1325 LB2_MSG_LINUX_TEST_RESULT([if 'kernel_write' matches other read/write helpers],
1326 [kernel_write_match], [
1327 AC_DEFINE(HAVE_NEW_KERNEL_WRITE, 1,
1328 ['kernel_write' aligns with read/write helpers])
1330 ]) # LIBCFS_NEW_KERNEL_WRITE
1333 # LIBCFS_MM_TOTALRAM_PAGES_FUNC
1335 # kernel 5.0 commit ca79b0c211af63fa3276f0e3fd7dd9ada2439839
1336 # mm: convert totalram_pages and totalhigh_pages variables to atomic
1338 AC_DEFUN([LIBCFS_SRC_MM_TOTALRAM_PAGES_FUNC], [
1339 LB2_LINUX_TEST_SRC([totalram_pages], [
1340 #include <linux/mm.h>
1342 totalram_pages_inc();
1345 AC_DEFUN([LIBCFS_MM_TOTALRAM_PAGES_FUNC], [
1346 LB2_MSG_LINUX_TEST_RESULT([if totalram_pages is a function],
1348 AC_DEFINE(HAVE_TOTALRAM_PAGES_AS_FUNC, 1,
1349 [if totalram_pages is a function])
1351 ]) # LIBCFS_MM_TOTALRAM_PAGES_FUNC
1354 # LIBCFS_NEW_KERNEL_READ
1356 # 4.14 commit bdd1d2d3d251c65b74ac4493e08db18971c09240 changed
1357 # the signature of kernel_read to match other read/write helpers
1358 # and place offset last.
1360 AC_DEFUN([LIBCFS_SRC_NEW_KERNEL_READ], [
1361 LB2_LINUX_TEST_SRC([kernel_read], [
1362 #include <linux/fs.h>
1365 kernel_read(NULL, NULL, 0, &pos);
1368 AC_DEFUN([LIBCFS_NEW_KERNEL_READ], [
1369 LB2_MSG_LINUX_TEST_RESULT([if 'kernel_read()' has loff_t *pos as last parameter],
1371 AC_DEFINE(HAVE_KERNEL_READ_LAST_POSP, 1,
1372 [kernel_read() signature ends with loff_t *pos])
1374 ]) # LIBCFS_NEW_KERNEL_READ
1377 # LIBCFS_DEFINE_TIMER
1379 # Kernel version 4.14 commit 1d27e3e2252ba9d949ca82fbdb73cde102cb2067
1380 # remove expires and data arguments from DEFINE_TIMER. Also the callback
1381 # when from using unsigned long argument to using struct timer_list pointer.
1383 AC_DEFUN([LIBCFS_SRC_DEFINE_TIMER], [
1384 LB2_LINUX_TEST_SRC([define_timer], [
1385 #include <linux/timer.h>
1387 static DEFINE_TIMER(my_timer, NULL);
1390 AC_DEFUN([LIBCFS_DEFINE_TIMER], [
1391 LB2_MSG_LINUX_TEST_RESULT([if DEFINE_TIMER takes only 2 arguments],
1393 AC_DEFINE(HAVE_NEW_DEFINE_TIMER, 1,
1394 [DEFINE_TIMER uses only 2 arguements])
1396 ]) # LIBCFS_DEFINE_TIMER
1399 # LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
1401 # Kernel 2.6.27 commit 8594698ebddeef5443b7da8258ae33b3eaca61d5
1402 # exported save_stack_trace_tsk for x86.
1403 # Kernel 2.6.27 commit 01f4b8b8b8db09b88be7df7e51192e4e678b69d3
1404 # exported save_stack_trace_tsk for powerpc
1405 # Kernel 4.13 commit e27c7fa015d61c8be6a2c32b2144aad2ae6ec975
1406 # exported save_stack_trace_tsk for arm64
1407 # Kernel 4.14 commit 9a3dc3186fc3795e076a4122da9e0258651a9631
1408 # exported save_stack_trace_tsk for arm
1410 AC_DEFUN([LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK], [
1411 LB_CHECK_EXPORT([save_stack_trace_tsk], [arch/$SUBARCH/kernel/stacktrace.c],
1412 [AC_DEFINE(HAVE_SAVE_STACK_TRACE_TSK, 1,
1413 [save_stack_trace_tsk is exported])])
1414 ]) # LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
1417 # LIBCFS_LOCKDEP_IS_HELD
1419 # Kernel v4.15-rc8-106-g08f36ff64234
1420 # lockdep: Make lockdep checking constant
1422 AC_DEFUN([LIBCFS_SRC_LOCKDEP_IS_HELD], [
1423 LB2_LINUX_TEST_SRC([lockdep_is_held], [
1424 #include <linux/lockdep.h>
1426 #ifdef CONFIG_LOCKDEP
1427 const struct spinlock *lock = NULL;
1429 lockdep_is_held(lock);
1433 AC_DEFUN([LIBCFS_LOCKDEP_IS_HELD], [
1434 LB2_MSG_LINUX_TEST_RESULT([if 'lockdep_is_held()' uses const argument],
1435 [lockdep_is_held], [
1437 AC_DEFINE(NEED_LOCKDEP_IS_HELD_DISCARD_CONST, 1,
1438 [lockdep_is_held() argument is const])
1440 ]) # LIBCFS_LOCKDEP_IS_HELD
1443 # LIBCFS_BITMAP_TO_ARR32
1445 # Kernel commit v4.15-10794-gc724f19 introduced
1446 # bitmap_{from,to}_arr32, which are handy functions, to move
1447 # data back and forth between a bitmap and a u32 array
1449 AC_DEFUN([LIBCFS_SRC_BITMAP_TO_ARR32], [
1450 LB2_LINUX_TEST_SRC([bitmap_to_arr32], [
1451 #include <linux/bitmap.h>
1453 bitmap_to_arr32(NULL, NULL, 0);
1456 AC_DEFUN([LIBCFS_BITMAP_TO_ARR32], [
1457 LB2_MSG_LINUX_TEST_RESULT([if 'bitmap_to_arr32()' exist],
1458 [bitmap_to_arr32], [
1459 AC_DEFINE(HAVE_BITMAP_TO_ARR32, 1,
1460 [bitmap_to_arr32() exist])
1462 ]) # LIBCFS_BITMAP_TO_ARR32
1465 # LIBCFS_TIMER_SETUP
1467 # Kernel version 4.15 commit e99e88a9d2b067465adaa9c111ada99a041bef9a
1468 # setup_timer() was replaced by timer_setup(), where the callback
1469 # argument is the structure already holding the struct timer_list.
1471 AC_DEFUN([LIBCFS_SRC_TIMER_SETUP], [
1472 LB2_LINUX_TEST_SRC([timer_setup], [
1473 #include <linux/timer.h>
1475 timer_setup(NULL, NULL, 0);
1478 AC_DEFUN([LIBCFS_TIMER_SETUP], [
1479 LB2_MSG_LINUX_TEST_RESULT([if setup_timer has been replaced with timer_setup],
1481 AC_DEFINE(HAVE_TIMER_SETUP, 1,
1482 [timer_setup has replaced setup_timer])
1484 ]) # LIBCFS_TIMER_SETUP
1487 # LIBCFS_WAIT_VAR_EVENT
1489 # Kernel version 4.16-rc4 commit 6b2bb7265f0b62605e8caee3613449ed0db270b9
1490 # added wait_var_event()
1492 AC_DEFUN([LIBCFS_SRC_WAIT_VAR_EVENT], [
1493 if test "x$lb_cv_header_linux_wait_bit_h" = xyes; then
1494 WAIT_BIT_H="-DHAVE_WAIT_BIT_HEADER_H=1"
1498 LB2_LINUX_TEST_SRC([wait_var_event], [
1499 #ifdef HAVE_WAIT_BIT_HEADER_H
1500 #include <linux/wait_bit.h>
1502 #include <linux/wait.h>
1507 AC_DEFUN([LIBCFS_WAIT_VAR_EVENT], [
1508 LB2_MSG_LINUX_TEST_RESULT([if 'wait_var_event' exist],
1510 AC_DEFINE(HAVE_WAIT_VAR_EVENT, 1,
1511 ['wait_var_event' is available])
1513 ]) # LIBCFS_WAIT_VAR_EVENT
1516 # LIBCFS_BITMAP_ALLOC
1518 # Kernel version 4.17 commit c42b65e363ce97a828f81b59033c3558f8fa7f70
1519 # added bitmap memory allocation handling.
1521 AC_DEFUN([LIBCFS_SRC_BITMAP_ALLOC], [
1522 LB2_LINUX_TEST_SRC([bitmap_alloc], [
1523 #include <linux/bitmap.h>
1525 unsigned long *map = bitmap_alloc(1, GFP_KERNEL);
1529 AC_DEFUN([LIBCFS_BITMAP_ALLOC], [
1530 LB2_MSG_LINUX_TEST_RESULT([if Linux bitmap memory management exist],
1532 AC_DEFINE(HAVE_BITMAP_ALLOC, 1,
1533 [Linux bitmap can be allocated])
1535 ]) # LIBCFS_BITMAP_ALLOC
1538 # LIBCFS_CLEAR_AND_WAKE_UP_BIT
1540 # Kernel version 4.17-rc2 commit 8236b0ae31c837d2b3a2565c5f8d77f637e824cc
1541 # added clear_and_wake_up_bit()
1543 AC_DEFUN([LIBCFS_SRC_CLEAR_AND_WAKE_UP_BIT], [
1544 if test "x$lb_cv_header_linux_wait_bit_h" = xyes; then
1545 WAIT_BIT_H="-DHAVE_WAIT_BIT_HEADER_H=1"
1549 LB2_LINUX_TEST_SRC([clear_and_wake_up_bit], [
1550 #ifdef HAVE_WAIT_BIT_HEADER_H
1551 #include <linux/wait_bit.h>
1553 #include <linux/wait.h>
1555 clear_and_wake_up_bit(0, NULL);
1558 AC_DEFUN([LIBCFS_CLEAR_AND_WAKE_UP_BIT], [
1559 LB2_MSG_LINUX_TEST_RESULT([if 'clear_and_wake_up_bit' exist],
1560 [clear_and_wake_up_bit], [
1561 AC_DEFINE(HAVE_CLEAR_AND_WAKE_UP_BIT, 1,
1562 ['clear_and_wake_up_bit' is available])
1564 ]) # LIBCFS_CLEAR_AND_WAKE_UP_BIT
1567 # LIBCFS_TCP_SOCK_SET_NODELAY
1569 # kernel 4.18.0-293.el8
1570 # tcp_sock_set_nodelay() was added
1571 AC_DEFUN([LIBCFS_SRC_TCP_SOCK_SET_NODELAY], [
1572 LB2_LINUX_TEST_SRC([tcp_sock_set_nodelay_exists], [
1573 #include <linux/tcp.h>
1575 tcp_sock_set_nodelay(NULL);
1578 AC_DEFUN([LIBCFS_TCP_SOCK_SET_NODELAY], [
1579 LB2_MSG_LINUX_TEST_RESULT([if 'tcp_sock_set_nodelay()' exists],
1580 [tcp_sock_set_nodelay_exists], [
1581 AC_DEFINE(HAVE_TCP_SOCK_SET_NODELAY, 1,
1582 ['tcp_sock_set_nodelay()' exists])
1584 ]) # LIBCFS_TCP_SOCK_SET_NODELAY
1587 # LIBCFS_TCP_SOCK_SET_KEEPIDLE
1589 # kernel 4.18.0-293.el8
1590 # tcp_sock_set_keepidle() was added
1592 AC_DEFUN([LIBCFS_SRC_TCP_SOCK_SET_KEEPIDLE], [
1593 LB2_LINUX_TEST_SRC([tcp_sock_set_keepidle_exists], [
1594 #include <linux/tcp.h>
1596 tcp_sock_set_keepidle(NULL, 0);
1599 AC_DEFUN([LIBCFS_TCP_SOCK_SET_KEEPIDLE], [
1600 LB2_MSG_LINUX_TEST_RESULT([if 'tcp_sock_set_keepidle()' exists],
1601 [tcp_sock_set_keepidle_exists], [
1602 AC_DEFINE(HAVE_TCP_SOCK_SET_KEEPIDLE, 1,
1603 ['tcp_sock_set_keepidle()' exists])
1605 ]) # LIBCFS_TCP_SOCK_SET_KEEPIDLE
1608 # LIBCFS_TCP_SOCK_SET_QUICKACK
1609 # kernel v5.7-rc6-2504-gddd061b8daed
1610 # tcp: add tcp_sock_set_quickack
1612 AC_DEFUN([LIBCFS_SRC_TCP_SOCK_SET_QUICKACK], [
1613 LB2_LINUX_TEST_SRC([tcp_sock_set_quickack_exists], [
1614 #include <linux/tcp.h>
1616 tcp_sock_set_quickack(NULL, 0);
1619 AC_DEFUN([LIBCFS_TCP_SOCK_SET_QUICKACK], [
1620 LB2_MSG_LINUX_TEST_RESULT([if 'tcp_sock_set_quickack()' exists],
1621 [tcp_sock_set_quickack_exists], [
1622 AC_DEFINE(HAVE_TCP_SOCK_SET_QUICKACK, 1,
1623 ['tcp_sock_set_quickack()' exists])
1625 ]) # LIBCFS_TCP_SOCK_SET_QUICKACK
1628 # LIBCFS_TCP_SOCK_SET_KEEPINTVL
1629 # v5.7-rc6-2508-gd41ecaac903c
1630 # tcp: add tcp_sock_set_keepintvl
1632 AC_DEFUN([LIBCFS_SRC_TCP_SOCK_SET_KEEPINTVL], [
1633 LB2_LINUX_TEST_SRC([tcp_sock_set_keepintvl_exists], [
1634 #include <linux/tcp.h>
1636 tcp_sock_set_keepintvl(NULL, 0);
1639 AC_DEFUN([LIBCFS_TCP_SOCK_SET_KEEPINTVL], [
1640 LB2_MSG_LINUX_TEST_RESULT([if 'tcp_sock_set_keepintvl()' exists],
1641 [tcp_sock_set_keepintvl_exists], [
1642 AC_DEFINE(HAVE_TCP_SOCK_SET_KEEPINTVL, 1,
1643 ['tcp_sock_set_keepintvl()' exists])
1645 ]) # LIBCFS_TCP_SOCK_SET_KEEPINTVL
1648 # LIBCFS_TCP_SOCK_SET_KEEPCNT
1649 # v5.7-rc6-2509-g480aeb9639d6
1650 # tcp: add tcp_sock_set_keepcnt
1652 AC_DEFUN([LIBCFS_SRC_TCP_SOCK_SET_KEEPCNT], [
1653 LB2_LINUX_TEST_SRC([tcp_sock_set_keepcnt_exists], [
1654 #include <linux/tcp.h>
1656 tcp_sock_set_keepcnt(NULL, 0);
1659 AC_DEFUN([LIBCFS_TCP_SOCK_SET_KEEPCNT], [
1660 LB2_MSG_LINUX_TEST_RESULT([if 'tcp_sock_set_keepcnt()' exists],
1661 [tcp_sock_set_keepcnt_exists], [
1662 AC_DEFINE(HAVE_TCP_SOCK_SET_KEEPCNT, 1,
1663 ['tcp_sock_set_keepcnt()' exists])
1665 ]) # LIBCFS_TCP_SOCK_SET_KEEPCNT
1668 # LIBCFS_XARRAY_SUPPORT
1670 # 4.19-rc5 kernel commit 3159f943aafdbacb2f94c38fdaadabf2bbde2a14
1671 # replaced the radix tree implementation with Xarrays. This change
1672 # introduced functionaly needed for general Xarray support
1674 AC_DEFUN([LIBCFS_SRC_XARRAY_SUPPORT], [
1675 LB2_LINUX_TEST_SRC([xarray_support], [
1676 #include <linux/xarray.h>
1681 AC_DEFUN([LIBCFS_XARRAY_SUPPORT], [
1682 LB2_MSG_LINUX_TEST_RESULT([if page cache uses Xarray],
1684 AC_DEFINE(HAVE_XARRAY_SUPPORT, 1,
1685 [kernel Xarray implementation lacks 'xa_is_value'])
1687 ]) # LIBCFS_XARRAY_SUPPORT
1690 # LIBCFS_NL_DUMP_EXT_ACK
1692 # Kernel version 4.19-rc6 commit 4a19edb60d0203cd5bf95a8b46ea8f63fd41194c
1693 # added extended ACK handling to Netlink dump handlers
1695 AC_DEFUN([LIBCFS_SRC_NL_DUMP_EXT_ACK], [
1696 LB2_LINUX_TEST_SRC([netlink_dump_ext_ack], [
1697 #include <net/netlink.h>
1699 struct netlink_callback *cb = NULL;
1703 AC_DEFUN([LIBCFS_NL_DUMP_EXT_ACK], [
1704 LB2_MSG_LINUX_TEST_RESULT([if Netlink dump handlers support ext_ack],
1705 [netlink_dump_ext_ack], [
1706 AC_DEFINE(HAVE_NL_DUMP_WITH_EXT_ACK, 1,
1707 [netlink_ext_ack is handled for Netlink dump handlers])
1709 ]) # LIBCFS_NL_DUMP_EXT_ACK
1712 # LIBCFS_HAVE_IOV_ITER_TYPE
1714 # kernel 4.20 commit 00e23707442a75b404392cef1405ab4fd498de6b
1715 # iov_iter: Use accessor functions to access an iterator's type and direction.
1717 AC_DEFUN([LIBCFS_SRC_HAVE_IOV_ITER_TYPE], [
1718 LB2_LINUX_TEST_SRC([macro_iov_iter_type_exists], [
1719 #include <linux/uio.h>
1721 struct iov_iter iter = { };
1722 enum iter_type type = iov_iter_type(&iter);
1726 AC_DEFUN([LIBCFS_HAVE_IOV_ITER_TYPE], [
1727 LB2_MSG_LINUX_TEST_RESULT([if iov_iter_type exists],
1728 [macro_iov_iter_type_exists], [
1729 AC_DEFINE(HAVE_IOV_ITER_TYPE, 1,
1730 [if iov_iter_type exists])
1732 ]) # LIBCFS_HAVE_IOV_ITER_TYPE
1737 # Kernel 5.0 commit ba20ba2e3743bac786dff777954c11930256075e
1738 # implemented generic radix trees to handle very large memory
1739 # allocation that can be used instead of vmalloc which has
1740 # a performance penalty.
1742 AC_DEFUN([LIBCFS_GENRADIX], [
1743 LB_CHECK_EXPORT([__genradix_ptr], [lib/generic-radix-tree.c],
1744 [AC_DEFINE(HAVE_GENRADIX_SUPPORT, 1,
1745 [generic-radix-tree is present])])
1746 ]) # LIBCFS_GENRADIX
1749 # LIBCFS_GET_REQUEST_KEY_AUTH
1751 # kernel 5.0 commit 822ad64d7e46a8e2c8b8a796738d7b657cbb146d
1752 # keys: Fix dependency loop between construction record and auth key
1754 # Added <keys/request_key_auth-type.h> and get_request_key_auth()
1755 # which was propagated to stable
1757 AC_DEFUN([LIBCFS_SRC_GET_REQUEST_KEY_AUTH], [
1758 LB2_LINUX_TEST_SRC([get_request_key_auth_exported], [
1759 #include <linux/key.h>
1760 #include <linux/keyctl.h>
1761 #include <keys/request_key_auth-type.h>
1764 const struct key *key = NULL;
1765 struct request_key_auth *rka = get_request_key_auth(key);
1767 ring = key_get(rka->dest_keyring);
1770 AC_DEFUN([LIBCFS_GET_REQUEST_KEY_AUTH], [
1771 LB2_MSG_LINUX_TEST_RESULT([if get_request_key_auth() is available],
1772 [get_request_key_auth_exported], [
1773 AC_DEFINE(HAVE_GET_REQUEST_KEY_AUTH, 1,
1774 [get_request_key_auth() is available])
1776 ]) # LIBCFS_GET_REQUEST_KEY_AUTH
1779 # LIBCFS_KOBJ_TYPE_DEFAULT_GROUPS
1781 # Linux commit v5.1-rc3-29-gaa30f47cf666
1782 # kobject: Add support for default attribute groups to kobj_type
1783 # Linux commit v5.18-rc1-2-gcdb4f26a63c3
1784 # kobject: kobj_type: remove default_attrs
1786 AC_DEFUN([LIBCFS_SRC_KOBJ_TYPE_DEFAULT_GROUPS],[
1787 LB2_LINUX_TEST_SRC([kobj_type_default_groups], [
1788 #include <linux/kobject.h>
1790 struct kobj_type *kobj_type = NULL;
1791 void *has = kobj_type->default_groups;
1795 AC_DEFUN([LIBCFS_KOBJ_TYPE_DEFAULT_GROUPS],[
1796 LB2_MSG_LINUX_TEST_RESULT([does struct kobj_type have 'default_groups' member],
1797 [kobj_type_default_groups], [
1798 AC_DEFINE(HAVE_KOBJ_TYPE_DEFAULT_GROUPS, 1,
1799 [struct kobj_type has 'default_groups' member])
1801 ]) # LIBCFS_KOBJ_TYPE_DEFAULT_GROUPS
1804 # LIBCFS_LOOKUP_USER_KEY
1806 # kernel 5.3 commit 3cf5d076fb4d48979f382bc9452765bf8b79e740
1807 # signal: Remove task parameter from force_sig
1809 AC_DEFUN([LIBCFS_SRC_LOOKUP_USER_KEY], [
1810 LB2_LINUX_TEST_SRC([lookup_user_key_exported], [
1811 #include <linux/key.h>
1812 #include <linux/keyctl.h>
1814 lookup_user_key(KEY_SPEC_USER_KEYRING, 0, 0);
1817 AC_DEFUN([LIBCFS_LOOKUP_USER_KEY], [
1818 LB2_MSG_LINUX_TEST_RESULT([if lookup_user_key() is available],
1819 [lookup_user_key_exported], [
1820 AC_DEFINE(HAVE_LOOKUP_USER_KEY, 1,
1821 [lookup_user_key() is available])
1823 ]) # LIBCFS_LOOKUP_USER_KEY
1826 # LIBCFS_CACHE_DETAIL_WRITERS
1828 # kernel v5.3-rc2-1-g64a38e840ce5
1829 # SUNRPC: Track writers of the 'channel' file to improve cache_listeners_exist
1831 AC_DEFUN([LIBCFS_SRC_CACHE_DETAIL_WRITERS], [
1832 LB2_LINUX_TEST_SRC([cache_detail_writers_atomic], [
1833 #include <linux/sunrpc/cache.h>
1835 static struct cache_detail rsi_cache;
1837 atomic_set(&rsi_cache.writers, 0);
1840 AC_DEFUN([LIBCFS_CACHE_DETAIL_WRITERS], [
1841 LB2_MSG_LINUX_TEST_RESULT([if struct cache_detail has writers],
1842 [cache_detail_writers_atomic], [
1843 AC_DEFINE(HAVE_CACHE_DETAIL_WRITERS, 1,
1844 [struct cache_detail has writers])
1846 ]) # LIBCFS_CACHE_DETAIL_WRITERS
1849 # LIBCFS_GENL_DUMPIT_INFO
1851 # kernel v5.4-rc1 commit bf813b0afeae2f012f0e527a526c1b78ca21ad82
1852 # expanded struct genl_dumpit_info to include struct genl_family.
1854 AC_DEFUN([LIBCFS_SRC_GENL_DUMPIT_INFO], [
1855 LB2_LINUX_TEST_SRC([genl_dumpit_info], [
1856 #include <net/genetlink.h>
1858 static struct genl_dumpit_info info;
1863 AC_DEFUN([LIBCFS_GENL_DUMPIT_INFO], [
1864 LB2_MSG_LINUX_TEST_RESULT([if struct genl_dumpit_info has family field],
1865 [genl_dumpit_info], [
1866 AC_DEFINE(HAVE_GENL_DUMPIT_INFO, 1,
1867 [struct genl_dumpit_info has family field])
1869 ]) # LIBCFS_GENL_DUMPIT_INFO
1872 # LIBCFS_KALLSYMS_LOOKUP
1874 # kernel v5.6-11591-g0bd476e6c671
1875 # kallsyms: unexport kallsyms_lookup_name() and kallsyms_on_each_symbol()
1876 AC_DEFUN([LIBCFS_KALLSYMS_LOOKUP], [
1877 LB_CHECK_EXPORT([kallsyms_lookup_name], [kernel/kallsyms.c],
1878 [AC_DEFINE(HAVE_KALLSYMS_LOOKUP_NAME, 1,
1879 [kallsyms_lookup_name is exported by kernel])])
1880 ]) # LIBCFS_KALLSYMS_LOOKUP
1883 # v5.5-8862-gd56c0d45f0e2
1884 # proc: decouple proc from VFS with "struct proc_ops"
1886 AC_DEFUN([LIBCFS_SRC_HAVE_PROC_OPS], [
1887 LB2_LINUX_TEST_SRC([proc_ops], [
1888 #include <linux/proc_fs.h>
1890 static struct proc_ops *my_proc;
1892 my_proc->proc_lseek = NULL;
1894 ]) # LIBCFS_SRC_HAVE_PROC_OPS
1895 AC_DEFUN([LIBCFS_HAVE_PROC_OPS], [
1896 LB2_MSG_LINUX_TEST_RESULT([if struct proc_ops exists],
1898 AC_DEFINE(HAVE_PROC_OPS, 1,
1899 [struct proc_ops exists])
1901 ]) # LIBCFS_HAVE_PROC_OPS
1904 # LIBCFS_IP6_SET_PREF
1906 # kernel v5.8-rc1~165^2~71^2~3 commit 18d5ad62327576cbb1e5b9938a59d63ac0c15832
1907 # ipv6: add ip6_sock_set_addr_preferences
1909 AC_DEFUN([LIBCFS_SRC_IP6_SET_PREF], [
1910 LB2_LINUX_TEST_SRC([ip6_set_pref_test], [
1911 #include <net/ipv6.h>
1913 ip6_sock_set_addr_preferences(NULL, 0);
1916 AC_DEFUN([LIBCFS_IP6_SET_PREF], [
1917 LB2_MSG_LINUX_TEST_RESULT([if ip6_sock_set_addr_preferences() exists],
1918 [ip6_set_pref_test], [
1919 AC_DEFINE(HAVE_IP6_SET_PREF, 1,
1920 [if ip6_sock_set_addr_preferences exists])
1922 ]) # LIBCFS_IP6_SET_PREF
1925 # LIBCFS_VMALLOC_2ARGS
1927 # kernel v5.8-rc1~201^2~19
1928 # mm: remove the pgprot argument to __vmalloc
1929 AC_DEFUN([LIBCFS_SRC_VMALLOC_2ARGS], [
1930 LB2_LINUX_TEST_SRC([vmalloc_2args], [
1931 #include <linux/vmalloc.h>
1936 AC_DEFUN([LIBCFS_VMALLOC_2ARGS], [
1937 LB2_MSG_LINUX_TEST_RESULT([if __vmalloc has 2 args],
1939 AC_DEFINE(HAVE_VMALLOC_2ARGS, 1,
1940 [__vmalloc only takes 2 args.])
1942 ]) # LIBCFS_VMALLOC_2ARGS
1945 # LIBCFS_HAVE_NR_UNSTABLE_NFS
1947 # kernel v5.8-rc1~201^2~75
1948 # mm/writeback: discard NR_UNSTABLE_NFS, use NR_WRITEBACK instead
1950 AC_DEFUN([LIBCFS_SRC_HAVE_NR_UNSTABLE_NFS], [
1951 LB2_LINUX_TEST_SRC([nr_unstable_nfs_exists], [
1952 #include <linux/mm.h>
1956 i = NR_UNSTABLE_NFS;
1959 AC_DEFUN([LIBCFS_HAVE_NR_UNSTABLE_NFS], [
1960 LB2_MSG_LINUX_TEST_RESULT([if NR_UNSTABLE_NFS still in use],
1961 [nr_unstable_nfs_exists], [
1962 AC_DEFINE(HAVE_NR_UNSTABLE_NFS, 1,
1963 [NR_UNSTABLE_NFS is still in use.])
1965 ]) # LIBCFS_HAVE_NR_UNSTABLE_NFS
1968 # LIBCFS_HAVE_MMAP_LOCK
1970 # kernel v5.8-rc1~83^2~24
1971 # mmap locking API: rename mmap_sem to mmap_lock
1973 AC_DEFUN([LIBCFS_SRC_HAVE_MMAP_LOCK], [
1974 LB2_LINUX_TEST_SRC([mmap_write_lock], [
1975 #include <linux/mm.h>
1977 mmap_write_lock(NULL);
1980 AC_DEFUN([LIBCFS_HAVE_MMAP_LOCK], [
1981 LB2_MSG_LINUX_TEST_RESULT([if mmap_lock API is available],
1982 [mmap_write_lock], [
1983 AC_DEFINE(HAVE_MMAP_LOCK, 1,
1984 [mmap_lock API is available.])
1986 ]) # LIBCFS_HAVE_MMAP_LOCK
1989 # LIBCFS_KERNEL_SETSOCKOPT
1991 # kernel v5.8-rc1~165^2~59^2
1992 # net: remove kernel_setsockopt
1993 AC_DEFUN([LIBCFS_SRC_KERNEL_SETSOCKOPT], [
1994 LB2_LINUX_TEST_SRC([kernel_setsockopt_exists], [
1995 #include <linux/net.h>
1997 kernel_setsockopt(NULL, 0, 0, NULL, 0);
2000 AC_DEFUN([LIBCFS_KERNEL_SETSOCKOPT], [
2001 LB2_MSG_LINUX_TEST_RESULT([if kernel_setsockopt still in use],
2002 [kernel_setsockopt_exists], [
2003 AC_DEFINE(HAVE_KERNEL_SETSOCKOPT, 1,
2004 [kernel_setsockopt still in use])
2006 ]) # LIBCFS_KERNEL_SETSOCKOPT
2009 # LIBCFS_KEY_NEED_UNLINK
2011 # kernel 5.8 commit 8c0637e950d68933a67f7438f779d79b049b5e5c
2012 # keys: Make the KEY_NEED_* perms an enum rather than a mask
2014 AC_DEFUN([LIBCFS_SRC_KEY_NEED_UNLINK], [
2015 LB2_LINUX_TEST_SRC([key_need_unlink_exists], [
2016 #include <linux/key.h>
2017 #include <linux/keyctl.h>
2019 lookup_user_key(0, 0, KEY_NEED_UNLINK);
2022 AC_DEFUN([LIBCFS_KEY_NEED_UNLINK], [
2023 LB2_MSG_LINUX_TEST_RESULT([if KEY_NEED_UNLINK exists],
2024 [key_need_unlink_exists], [
2025 AC_DEFINE(HAVE_KEY_NEED_UNLINK, 1,
2026 [KEY_NEED_UNLINK exists])
2028 ]) # LIBCFS_KEY_NEED_UNLINK
2031 # LIBCFS_SEC_RELEASE_SECCTX
2033 # kernel linux-hwe-5.8 (5.8.0-22.23~20.04.1)
2034 # LSM: Use lsmcontext in security_release_secctx
2035 AC_DEFUN([LIBCFS_SRC_SEC_RELEASE_SECCTX], [
2036 LB2_LINUX_TEST_SRC([security_release_secctx_1arg], [
2037 #include <linux/security.h>
2039 security_release_secctx(NULL);
2042 AC_DEFUN([LIBCFS_SEC_RELEASE_SECCTX], [
2043 LB2_MSG_LINUX_TEST_RESULT([if security_release_secctx has 1 arg],
2044 [security_release_secctx_1arg], [
2045 AC_DEFINE(HAVE_SEC_RELEASE_SECCTX_1ARG, 1,
2046 [security_release_secctx has 1 arg.])
2048 ]) # LIBCFS_SEC_RELEASE_SECCTX
2051 # LIBCFS_HAVE_KFREE_SENSITIVE
2053 # kernel v5.10-rc1~3
2054 # mm: remove kzfree() compatibility definition
2056 AC_DEFUN([LIBCFS_SRC_HAVE_KFREE_SENSITIVE], [
2057 LB2_LINUX_TEST_SRC([kfree_sensitive_exists], [
2058 #include <linux/slab.h>
2060 kfree_sensitive(NULL);
2063 AC_DEFUN([LIBCFS_HAVE_KFREE_SENSITIVE], [
2064 LB2_MSG_LINUX_TEST_RESULT([if kfree_sensitive() is available],
2065 [kfree_sensitive_exists], [
2066 AC_DEFINE(HAVE_KFREE_SENSITIVE, 1,
2067 [kfree_sensitive() is available.])
2069 ]) # LIBCFS_HAVE_KFREE_SENSITIVE
2072 # LIBCFS_HAVE_CRYPTO_SHA2_HEADER
2074 # Kernel v5.10-rc1-114-ga24d22b225ce
2075 # crypto: sha - split sha.h into sha1.h and sha2.h
2077 AC_DEFUN([LIBCFS_SRC_HAVE_CRYPTO_SHA2_HEADER], [
2078 LB2_CHECK_LINUX_HEADER_SRC([crypto/sha2.h], [-Werror])
2080 AC_DEFUN([LIBCFS_HAVE_CRYPTO_SHA2_HEADER], [
2081 LB2_CHECK_LINUX_HEADER_RESULT([crypto/sha2.h], [
2082 AC_DEFINE(HAVE_CRYPTO_SHA2_HEADER, 1,
2083 [crypto/sha2.h is present])
2085 ]) # LIBCFS_HAVE_CRYPTO_SHA2_HEADER
2088 # LIBCFS_HAVE_LIST_CMP_FUNC_T
2090 # kernel 5.10.70 commit 4f0f586bf0c898233d8f316f471a21db2abd522d
2091 # treewide: Change list_sort to use const pointers
2092 AC_DEFUN([LIBCFS_SRC_HAVE_LIST_CMP_FUNC_T], [
2093 LB2_LINUX_TEST_SRC([list_cmp_func_t_exists], [
2094 #include <linux/list_sort.h>
2096 list_cmp_func_t cmp;
2100 AC_DEFUN([LIBCFS_HAVE_LIST_CMP_FUNC_T], [
2101 LB2_MSG_LINUX_TEST_RESULT([if list_cmp_func_t type is defined],
2102 [list_cmp_func_t_exists], [
2103 AC_DEFINE(HAVE_LIST_CMP_FUNC_T, 1,
2104 [list_cmp_func_t type is defined])
2106 ]) # LIBCFS_HAVE_LIST_CMP_FUNC_T
2109 # LIBCFS_NLA_STRLCPY
2111 # Kernel version 5.10-rc3 commit 872f690341948b502c93318f806d821c56772c42
2112 # replaced nla_strlcpy() with nla_strscpy().
2114 AC_DEFUN([LIBCFS_SRC_NLA_STRLCPY], [
2115 LB2_LINUX_TEST_SRC([nla_strlcpy], [
2116 #include <net/netlink.h>
2118 if (nla_strlcpy(NULL, NULL, 0) == 0)
2122 AC_DEFUN([LIBCFS_NLA_STRLCPY], [
2123 LB2_MSG_LINUX_TEST_RESULT([if 'nla_strlcpy()' still exists],
2125 AC_DEFINE(HAVE_NLA_STRLCPY, 1,
2126 ['nla_strlcpy' is available])
2128 ]) # LIBCFS_NLA_STRLCPY
2131 # LIBCFS_LINUX_FORTIFY_STRING_HEADER
2133 # Linux v5.11-11104-ga28a6e860c6c
2134 # string.h: move fortified functions definitions in a dedicated header.
2136 AC_DEFUN([LIBCFS_SRC_LINUX_FORTIFY_STRING_HEADER],[
2137 LB2_LINUX_TEST_SRC([linux_fortify_string_header], [
2138 #include <linux/fortify-string.h>
2142 AC_DEFUN([LIBCFS_LINUX_FORTIFY_STRING_HEADER],[
2143 LB2_MSG_LINUX_TEST_RESULT([Is linux/fortify-string.h header available],
2144 [linux_fortify_string_header], [
2145 AC_DEFINE(HAVE_LINUX_FORTIFY_STRING_HEADER, 1,
2146 [linux/fortify-string.h header available])
2148 ]) # LIBCFS_LINUX_FORTIFY_STRING_HEADER
2151 # LIBCFS_HAVE_CIPHER_HEADER
2153 # Kernel 5.12 commit 0eb76ba29d16df2951d37c54ca279c4e5630b071
2154 # crypto: remove cipher routines from public crypto API
2156 AC_DEFUN([LIBCFS_SRC_HAVE_CIPHER_HEADER], [
2157 LB2_CHECK_LINUX_HEADER_SRC([crypto/internal/cipher.h], [-Werror])
2159 AC_DEFUN([LIBCFS_HAVE_CIPHER_HEADER], [
2160 LB2_CHECK_LINUX_HEADER_RESULT([crypto/internal/cipher.h], [
2161 AC_DEFINE(HAVE_CIPHER_H, 1,
2162 [crypto/internal/cipher.h is present])
2164 ]) # LIBCFS_HAVE_CIPHER_HEADER
2167 # LIBCFS_HAVE_TASK_RUNNING
2169 # Kernel 5.13-rc6 commit b03fbd4ff24c5f075e58eb19261d5f8b3e40d
2170 # introduced task_is_running() macro.
2172 AC_DEFUN([LIBCFS_SRC_HAVE_TASK_IS_RUNNING], [
2173 LB2_LINUX_TEST_SRC([task_is_running], [
2174 #include <linux/sched.h>
2176 if (task_is_running(current))
2180 AC_DEFUN([LIBCFS_HAVE_TASK_IS_RUNNING], [
2181 LB2_MSG_LINUX_TEST_RESULT([if task_is_running() is defined],
2182 [task_is_running], [
2183 AC_DEFINE(HAVE_TASK_IS_RUNNING, 1,
2184 [task_is_running() is defined])
2186 ]) # LIBCFS_HAVE_TASK_IS_RUNNING
2189 # LIBCFS_LINUX_STDARG_HEADER
2191 # Kernel 5.14-rc5 commit c0891ac15f0428ffa81b2e818d416bdf3cb74ab6
2192 # isystem: ship and use stdarg.h
2194 AC_DEFUN([LIBCFS_SRC_LINUX_STDARG_HEADER], [
2195 LB2_CHECK_LINUX_HEADER_SRC([linux/stdarg.h], [-Werror])
2197 AC_DEFUN([LIBCFS_LINUX_STDARG_HEADER], [
2198 LB2_CHECK_LINUX_HEADER_RESULT([linux/stdarg.h], [
2199 AC_DEFINE(HAVE_LINUX_STDARG_HEADER, 1,
2200 [linux/stdarg.h is present])
2202 ]) # LIBCFS_LINUX_STDARG_HEADER
2205 # LIBCFS_HAVE_PANIC_NOTIFIER_HEADER
2207 # Kernel 5.14 commit f39650de687e35766572ac89dbcd16a5911e2f0a
2208 # kernel.h: split out panic and oops helpers
2210 AC_DEFUN([LIBCFS_SRC_HAVE_PANIC_NOTIFIER_HEADER], [
2211 LB2_CHECK_LINUX_HEADER_SRC([linux/panic_notifier.h], [-Werror])
2213 AC_DEFUN([LIBCFS_HAVE_PANIC_NOTIFIER_HEADER], [
2214 LB2_CHECK_LINUX_HEADER_RESULT([linux/panic_notifier.h], [
2215 AC_DEFINE(HAVE_PANIC_NOTIFIER_H, 1,
2216 [linux/panic_notifier.h is present])
2218 ]) # LIBCFS_HAVE_PANIC_NOTIFIER_HEADER
2221 # LIBCFS_PARAM_SET_UINT_MINMAX
2223 # Kernel 5.15-rc1 commit 2a14c9ae15a38148484a128b84bff7e9ffd90d68
2224 # moved param_set_uint_minmax to common code
2226 AC_DEFUN([LIBCFS_SRC_PARAM_SET_UINT_MINMAX],[
2227 LB2_LINUX_TEST_SRC([param_set_uint_minmax], [
2228 #include <linux/moduleparam.h>
2230 param_set_uint_minmax(NULL, NULL, 0, 0);
2233 AC_DEFUN([LIBCFS_PARAM_SET_UINT_MINMAX],[
2234 LB2_MSG_LINUX_TEST_RESULT([does function 'param_set_uint_minmax' exist],
2235 [param_set_uint_minmax], [
2236 AC_DEFINE(HAVE_PARAM_SET_UINT_MINMAX, 1,
2237 ['param_set_uint_minmax' is available])
2239 ]) # LIBCFS_PARAM_SET_UINT_MINMAX
2242 # LIBCFS_LINUX_BLK_INTEGRITY_HEADER
2244 # Kernel 5.15-rc6 commit fe45e630a1035aea94c29016f2598bbde149bbe3
2245 # block: move integrity handling out of <linux/blkdev.h>
2247 AC_DEFUN([LIBCFS_SRC_LINUX_BLK_INTEGRITY_HEADER], [
2248 LB2_CHECK_LINUX_HEADER_SRC([linux/blk-integrity.h], [-Werror])
2250 AC_DEFUN([LIBCFS_LINUX_BLK_INTEGRITY_HEADER], [
2251 LB2_CHECK_LINUX_HEADER_RESULT([linux/blk-integrity.h], [
2252 AC_DEFINE(HAVE_LINUX_BLK_INTEGRITY_HEADER, 1,
2253 [linux/blk-integrity.h is present])
2255 ]) # LIBCFS_LINUX_BLK_INTEGRITY_HEADER
2258 # LIBCFS_PDE_DATA_EXISTS
2260 # Linux commit v5.16-11573-g6dfbbae14a7b
2261 # introduce pde_data()
2262 # Linux commit v5.16-11574-g359745d78351
2265 AC_DEFUN([LIBCFS_SRC_PDE_DATA_EXISTS],[
2266 LB2_LINUX_TEST_SRC([pde_data], [
2267 #include <linux/proc_fs.h>
2269 struct inode *inode = NULL;
2270 void *data =pde_data(inode);
2274 AC_DEFUN([LIBCFS_PDE_DATA_EXISTS],[
2275 LB2_MSG_LINUX_TEST_RESULT([does function 'pde_data' exist],
2277 AC_DEFINE(HAVE_pde_data, 1, [function pde_data() available])
2279 AC_DEFINE(pde_data(inode), PDE_DATA(inode),
2280 [function pde_data() unavailable])
2282 ]) # LIBCFS_PDE_DATA_EXISTS
2285 # LIBCFS_BIO_ALLOC_WITH_BDEV
2287 # Linux commit v5.17-rc2-21-g07888c665b40
2288 # block: pass a block_device and opf to bio_alloc
2290 AC_DEFUN([LIBCFS_SRC_BIO_ALLOC_WITH_BDEV],[
2291 LB2_LINUX_TEST_SRC([bio_alloc_with_bdev], [
2292 #include <linux/bio.h>
2294 struct block_device *bdev = NULL;
2295 unsigned short nr_vecs = 1;
2296 gfp_t gfp = GFP_KERNEL;
2297 struct bio *bio = bio_alloc(bdev, nr_vecs, REQ_OP_WRITE, gfp);
2301 AC_DEFUN([LIBCFS_BIO_ALLOC_WITH_BDEV],[
2302 LB2_MSG_LINUX_TEST_RESULT([does bio_alloc() takes a struct block_device],
2303 [bio_alloc_with_bdev], [
2304 AC_DEFINE(HAVE_BIO_ALLOC_WITH_BDEV, 1,
2305 [bio_alloc() takes a struct block_device])
2307 ]) # LIBCFS_BIO_ALLOC_WITH_BDEV
2310 # LIBCFS_TIMER_DELETE_SYNC
2312 # Linux commit v6.1-rc1-7-g9a5a30568697
2313 # timers: Get rid of del_singleshot_timer_sync()
2314 # Linux commit v6.1-rc1-11-g9b13df3fb64e
2315 # timers: Rename del_timer_sync() to timer_delete_sync()
2317 AC_DEFUN([LIBCFS_SRC_TIMER_DELETE_SYNC],[
2318 LB2_LINUX_TEST_SRC([timer_delete_sync], [
2319 #include <linux/timer.h>
2321 struct timer_list *timer = NULL;
2322 (void)timer_delete_sync(timer);
2325 AC_DEFUN([LIBCFS_TIMER_DELETE_SYNC],[
2326 LB2_MSG_LINUX_TEST_RESULT([is timer_delete_sync() available],
2327 [timer_delete_sync], [
2328 AC_DEFINE(HAVE_TIMER_DELETE_SYNC, 1,
2329 [timer_delete_sync() is available])
2331 AC_DEFINE(timer_delete_sync(t), del_timer_sync(t),
2332 [timer_delete_sync() not is available])
2334 ]) # LIBCFS_TIMER_DELETE_SYNC
2337 # LIBCFS_TIMER_DELETE_SYNC
2339 # Linux commit v6.1-rc1-12-gbb663f0f3c39
2340 # timers: Rename del_timer() to timer_delete()
2342 AC_DEFUN([LIBCFS_SRC_TIMER_DELETE],[
2343 LB2_LINUX_TEST_SRC([timer_delete], [
2344 #include <linux/timer.h>
2346 struct timer_list *timer = NULL;
2347 (void)timer_delete(timer);
2350 AC_DEFUN([LIBCFS_TIMER_DELETE],[
2351 LB2_MSG_LINUX_TEST_RESULT([is timer_delete() available],
2353 AC_DEFINE(HAVE_TIMER_DELETE, 1,
2354 [timer_delete() is available])
2356 AC_DEFINE(timer_delete(t), del_timer(t),
2357 [timer_delete() not is available])
2359 ]) # LIBCFS_TIMER_DELETE
2362 dnl # Generate and compile all of the kernel API test cases to determine
2363 dnl # which interfaces are available. By invoking the kernel build system
2364 dnl # only once the compilation can be done in parallel significantly
2365 dnl # speeding up the process.
2367 AC_DEFUN([LIBCFS_PROG_LINUX_SRC], [
2369 LIBCFS_SRC_KTIME_GET_TS64
2371 LIBCFS_SRC_PREPARE_TO_WAIT_EVENT
2372 LIBCFS_SRC_KERNEL_PARAM_OPS
2373 LIBCFS_SRC_KTIME_ADD
2374 LIBCFS_SRC_KTIME_AFTER
2375 LIBCFS_SRC_KTIME_BEFORE
2376 LIBCFS_SRC_KTIME_COMPARE
2377 LIBCFS_SRC_SHRINKER_COUNT
2379 LIBCFS_SRC_MATCH_WILDCARD
2381 LIBCFS_SRC_HAVE_MAPPING_AS_EXITING_FLAG
2383 LIBCFS_SRC_IOV_ITER_HAS_TYPE
2385 LIBCFS_SRC_HAVE_GLOB
2387 LIBCFS_SRC_HLIST_ADD_AFTER
2388 LIBCFS_SRC_TIMESPEC64
2389 LIBCFS_SRC_KTIME_GET_NS
2390 LIBCFS_SRC_KTIME_GET_REAL_TS64
2391 LIBCFS_SRC_KTIME_GET_REAL_SECONDS
2392 LIBCFS_SRC_KTIME_GET_REAL_NS
2393 LIBCFS_SRC_KTIME_TO_TIMESPEC64
2394 LIBCFS_SRC_TIMESPEC64_SUB
2395 LIBCFS_SRC_TIMESPEC64_TO_KTIME
2397 LIBCFS_SRC_KTIME_GET_SECONDS
2398 LIBCFS_SRC_WAIT_WOKEN
2400 LIBCFS_SRC_KTIME_MS_DELTA
2402 LIBCFS_SRC_KERNEL_PARAM_LOCK
2404 LIBCFS_SRC_STRSCPY_EXISTS
2405 LIBCFS_SRC_HAVE_TOPOLOGY_SIBLING_CPUMASK
2407 LIBCFS_SRC_KSTRTOBOOL_FROM_USER
2408 LIBCFS_SRC_NETLINK_CALLBACK_START
2410 LIBCFS_SRC_CRYPTO_HASH_HELPERS
2411 LIBCFS_SRC_RHASHTABLE_REPLACE
2413 LIBCFS_SRC_BROKEN_HASH_64
2414 LIBCFS_SRC_STACKTRACE_OPS_ADDRESS_RETURN_INT
2415 LIBCFS_SRC_GET_USER_PAGES_6ARG
2416 LIBCFS_SRC_STRINGHASH
2418 LIBCFS_SRC_RHASHTABLE_INSERT_FAST
2419 LIBCFS_SRC_RHASHTABLE_WALK_INIT_3ARG
2421 LIBCFS_SRC_HAVE_NR_ZONE_WRITE_PENDING
2422 LIBCFS_SRC_RHASHTABLE_LOOKUP
2424 LIBCFS_SRC_STACKTRACE_OPS
2426 LIBCFS_SRC_GET_USER_PAGES_GUP_FLAGS
2427 LIBCFS_SRC_RHASHTABLE_WALK_ENTER
2429 LIBCFS_SRC_HOTPLUG_STATE_MACHINE
2431 LIBCFS_SRC_NL_EXT_ACK
2432 LIBCFS_SRC_RHASHTABLE_LOOKUP_GET_INSERT_FAST
2433 LIBCFS_SRC_SCHED_HEADERS
2434 LIBCFS_SRC_KREF_READ
2435 LIBCFS_SRC_RHT_BUCKET_VAR
2437 LIBCFS_SRC_CPUS_READ_LOCK
2438 LIBCFS_SRC_HAVE_PROCESSOR_HEADER
2439 LIBCFS_SRC_WAIT_QUEUE_TASK_LIST_RENAME
2440 LIBCFS_SRC_WAIT_BIT_QUEUE_ENTRY_EXISTS
2441 LIBCFS_SRC_REFCOUNT_T
2442 LIBCFS_SRC_MEMALLOC_NORECLAIM
2444 LIBCFS_SRC_NLA_STRDUP
2445 LIBCFS_SRC_WAIT_QUEUE_ENTRY
2447 LIBCFS_SRC_DEFINE_TIMER
2448 LIBCFS_SRC_NEW_KERNEL_WRITE
2449 LIBCFS_SRC_NEW_KERNEL_READ
2451 LIBCFS_SRC_BITMAP_TO_ARR32
2452 LIBCFS_SRC_TIMER_SETUP
2454 LIBCFS_SRC_HAVE_NS_TO_TIMESPEC64
2455 LIBCFS_SRC_WAIT_VAR_EVENT
2457 LIBCFS_SRC_BITMAP_ALLOC
2458 LIBCFS_SRC_CLEAR_AND_WAKE_UP_BIT
2460 LIBCFS_SRC_TCP_SOCK_SET_NODELAY
2461 LIBCFS_SRC_TCP_SOCK_SET_KEEPIDLE
2463 LIBCFS_SRC_XARRAY_SUPPORT
2464 LIBCFS_SRC_NL_DUMP_EXT_ACK
2466 LIBCFS_SRC_HAVE_IOV_ITER_TYPE
2468 LIBCFS_SRC_MM_TOTALRAM_PAGES_FUNC
2469 LIBCFS_SRC_GET_REQUEST_KEY_AUTH
2471 LIBCFS_SRC_KOBJ_TYPE_DEFAULT_GROUPS
2473 LIBCFS_SRC_LOOKUP_USER_KEY
2474 LIBCFS_SRC_CACHE_DETAIL_WRITERS
2476 LIBCFS_SRC_GENL_DUMPIT_INFO
2478 LIBCFS_SRC_HAVE_PROC_OPS
2480 LIBCFS_SRC_TCP_SOCK_SET_QUICKACK
2481 LIBCFS_SRC_TCP_SOCK_SET_KEEPINTVL
2482 LIBCFS_SRC_TCP_SOCK_SET_KEEPCNT
2484 LIBCFS_SRC_IP6_SET_PREF
2485 LIBCFS_SRC_VMALLOC_2ARGS
2486 LIBCFS_SRC_HAVE_NR_UNSTABLE_NFS
2487 LIBCFS_SRC_HAVE_MMAP_LOCK
2488 LIBCFS_SRC_KERNEL_SETSOCKOPT
2489 LIBCFS_SRC_KEY_NEED_UNLINK
2490 LIBCFS_SRC_SEC_RELEASE_SECCTX
2492 LIBCFS_SRC_HAVE_KFREE_SENSITIVE
2493 LIBCFS_SRC_HAVE_CRYPTO_SHA2_HEADER
2494 LIBCFS_SRC_HAVE_LIST_CMP_FUNC_T
2495 LIBCFS_SRC_NLA_STRLCPY
2497 LIBCFS_SRC_LINUX_FORTIFY_STRING_HEADER
2498 LIBCFS_SRC_HAVE_CIPHER_HEADER
2500 LIBCFS_SRC_HAVE_TASK_IS_RUNNING
2502 LIBCFS_SRC_LINUX_STDARG_HEADER
2503 LIBCFS_SRC_HAVE_PANIC_NOTIFIER_HEADER
2505 LIBCFS_SRC_PARAM_SET_UINT_MINMAX
2507 LIBCFS_SRC_PDE_DATA_EXISTS
2508 LIBCFS_SRC_BIO_ALLOC_WITH_BDEV
2510 LIBCFS_SRC_TIMER_DELETE_SYNC
2511 LIBCFS_SRC_TIMER_DELETE
2515 dnl # Check results of kernel interface tests.
2517 AC_DEFUN([LIBCFS_PROG_LINUX_RESULTS], [
2519 LIBCFS_KTIME_GET_TS64
2521 LIBCFS_PREPARE_TO_WAIT_EVENT
2522 LIBCFS_KERNEL_PARAM_OPS
2526 LIBCFS_KTIME_COMPARE
2527 LIBCFS_SHRINKER_COUNT
2529 LIBCFS_MATCH_WILDCARD
2531 LIBCFS_HAVE_MAPPING_AS_EXITING_FLAG
2533 LIBCFS_IOV_ITER_HAS_TYPE
2537 LIBCFS_HLIST_ADD_AFTER
2540 LIBCFS_KTIME_GET_REAL_TS64
2541 LIBCFS_KTIME_GET_REAL_SECONDS
2542 LIBCFS_KTIME_GET_REAL_NS
2543 LIBCFS_KTIME_TO_TIMESPEC64
2544 LIBCFS_TIMESPEC64_SUB
2545 LIBCFS_TIMESPEC64_TO_KTIME
2547 LIBCFS_KTIME_GET_SECONDS
2550 LIBCFS_KTIME_MS_DELTA
2552 LIBCFS_KERNEL_PARAM_LOCK
2554 LIBCFS_STRSCPY_EXISTS
2555 LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
2557 LIBCFS_KSTRTOBOOL_FROM_USER
2558 LIBCFS_NETLINK_CALLBACK_START
2560 LIBCFS_CRYPTO_HASH_HELPERS
2561 LIBCFS_RHASHTABLE_REPLACE
2563 LIBCFS_BROKEN_HASH_64
2564 LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
2565 LIBCFS_GET_USER_PAGES_6ARG
2568 LIBCFS_RHASHTABLE_INSERT_FAST
2569 LIBCFS_RHASHTABLE_WALK_INIT_3ARG
2571 LIBCFS_HAVE_NR_ZONE_WRITE_PENDING
2572 LIBCFS_RHASHTABLE_LOOKUP
2574 LIBCFS_STACKTRACE_OPS
2576 LIBCFS_GET_USER_PAGES_GUP_FLAGS
2577 LIBCFS_RHASHTABLE_WALK_ENTER
2579 LIBCFS_HOTPLUG_STATE_MACHINE
2582 LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST
2583 LIBCFS_SCHED_HEADERS
2585 LIBCFS_RHT_BUCKET_VAR
2587 LIBCFS_CPUS_READ_LOCK
2588 LIBCFS_HAVE_PROCESSOR_HEADER
2589 LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME
2590 LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS
2592 LIBCFS_MEMALLOC_NORECLAIM
2595 LIBCFS_WAIT_QUEUE_ENTRY
2598 LIBCFS_NEW_KERNEL_WRITE
2599 LIBCFS_NEW_KERNEL_READ
2601 LIBCFS_BITMAP_TO_ARR32
2604 LIBCFS_HAVE_NS_TO_TIMESPEC64
2605 LIBCFS_WAIT_VAR_EVENT
2608 LIBCFS_CLEAR_AND_WAKE_UP_BIT
2610 LIBCFS_TCP_SOCK_SET_NODELAY
2611 LIBCFS_TCP_SOCK_SET_KEEPIDLE
2613 LIBCFS_XARRAY_SUPPORT
2614 LIBCFS_NL_DUMP_EXT_ACK
2616 LIBCFS_HAVE_IOV_ITER_TYPE
2618 LIBCFS_MM_TOTALRAM_PAGES_FUNC
2619 LIBCFS_GET_REQUEST_KEY_AUTH
2621 LIBCFS_KOBJ_TYPE_DEFAULT_GROUPS
2623 LIBCFS_LOOKUP_USER_KEY
2624 LIBCFS_CACHE_DETAIL_WRITERS
2626 LIBCFS_GENL_DUMPIT_INFO
2628 LIBCFS_HAVE_PROC_OPS
2630 LIBCFS_TCP_SOCK_SET_QUICKACK
2631 LIBCFS_TCP_SOCK_SET_KEEPINTVL
2632 LIBCFS_TCP_SOCK_SET_KEEPCNT
2635 LIBCFS_VMALLOC_2ARGS
2636 LIBCFS_HAVE_NR_UNSTABLE_NFS
2637 LIBCFS_HAVE_MMAP_LOCK
2638 LIBCFS_KERNEL_SETSOCKOPT
2639 LIBCFS_KEY_NEED_UNLINK
2640 LIBCFS_SEC_RELEASE_SECCTX
2642 LIBCFS_HAVE_KFREE_SENSITIVE
2643 LIBCFS_HAVE_CRYPTO_SHA2_HEADER
2644 LIBCFS_HAVE_LIST_CMP_FUNC_T
2647 LIBCFS_LINUX_FORTIFY_STRING_HEADER
2648 LIBCFS_HAVE_CIPHER_HEADER
2650 LIBCFS_HAVE_TASK_IS_RUNNING
2652 LIBCFS_LINUX_STDARG_HEADER
2653 LIBCFS_HAVE_PANIC_NOTIFIER_HEADER
2655 LIBCFS_PARAM_SET_UINT_MINMAX
2657 LIBCFS_PDE_DATA_EXISTS
2658 LIBCFS_BIO_ALLOC_WITH_BDEV
2660 LIBCFS_TIMER_DELETE_SYNC
2667 # LibCFS linux kernel checks
2669 AC_DEFUN([LIBCFS_PROG_LINUX], [
2670 AC_MSG_NOTICE([LibCFS kernel checks
2671 ==============================================================================])
2672 LIBCFS_CONFIG_PANIC_DUMPLOG
2674 # 4.6 - Export Check
2675 LIBCFS_EXPORT_KSET_FIND_OBJ
2676 # 4.13 - Export Check
2677 LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
2678 # 5.0 - Export Check
2680 # 5.7 - Export Check
2681 LIBCFS_KALLSYMS_LOOKUP
2682 ]) # LIBCFS_PROG_LINUX
2685 # LIBCFS_PATH_DEFAULTS
2687 # default paths for installed files
2689 AC_DEFUN([LIBCFS_PATH_DEFAULTS], [
2690 ]) # LIBCFS_PATH_DEFAULTS
2695 # other configure checks
2697 AC_DEFUN([LIBCFS_CONFIGURE], [
2698 AC_MSG_NOTICE([LibCFS core checks
2699 ==============================================================================])
2701 # libcfs/libcfs/util/nidstrings.c
2702 AC_CHECK_HEADERS([netdb.h asm/types.h endian.h])
2703 AC_CHECK_FUNCS([gethostbyname])
2704 AC_CHECK_FUNCS([getaddrinfo])
2706 # -------- Check for required packages --------------
2708 AC_MSG_NOTICE([LibCFS required packages checks
2709 ==============================================================================])
2711 AC_MSG_CHECKING([whether to enable readline support])
2712 AC_ARG_ENABLE(readline,
2713 AS_HELP_STRING([--disable-readline],
2714 [disable readline support]),
2715 [], [enable_readline="yes"])
2716 AC_MSG_RESULT([$enable_readline])
2719 AS_IF([test "x$enable_readline" = xyes], [
2720 AC_CHECK_LIB([readline], [readline], [
2721 LIBREADLINE="-lreadline"
2722 AC_DEFINE(HAVE_LIBREADLINE, 1,
2723 [readline library is available])
2726 AC_SUBST(ENABLE_READLINE, yes)
2728 AC_SUBST(ENABLE_READLINE, no)
2730 AC_SUBST(LIBREADLINE)
2732 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
2733 AC_ARG_ENABLE([libpthread],
2734 AS_HELP_STRING([--disable-libpthread],
2735 [disable libpthread]),
2736 [], [enable_libpthread="yes"])
2737 AC_MSG_RESULT([$enable_libpthread])
2740 AS_IF([test "x$enable_libpthread" = xyes], [
2741 AC_CHECK_LIB([pthread], [pthread_create], [
2742 PTHREAD_LIBS="-lpthread"
2743 AC_DEFINE([HAVE_LIBPTHREAD], 1,
2744 [use libpthread for libcfs library])
2747 AC_SUBST(ENABLE_LIBPTHREAD, yes)
2749 AC_SUBST(ENABLE_LIBPTHREAD, no)
2750 AC_MSG_WARN([Using libpthread for libcfs library is disabled explicitly])
2752 AC_SUBST(PTHREAD_LIBS)
2753 ]) # LIBCFS_CONFIGURE
2756 # LIBCFS_CONFIG_FILES
2758 # files that should be generated with AC_OUTPUT
2760 AC_DEFUN([LIBCFS_CONFIG_FILES], [
2764 libcfs/autoconf/Makefile
2765 libcfs/include/Makefile
2766 libcfs/include/libcfs/Makefile
2767 libcfs/include/uapi/Makefile
2768 libcfs/include/libcfs/linux/Makefile
2769 libcfs/include/libcfs/util/Makefile
2770 libcfs/include/libcfs/crypto/Makefile
2771 libcfs/include/uapi/linux/Makefile
2772 libcfs/libcfs/Makefile
2773 libcfs/libcfs/autoMakefile
2774 libcfs/libcfs/linux/Makefile
2775 libcfs/libcfs/util/Makefile
2776 libcfs/libcfs/crypto/Makefile
2778 ]) # LIBCFS_CONFIG_FILES