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])])
16 AC_MSG_CHECKING([whether to enable ENTRY/EXIT])
17 AC_ARG_ENABLE([libcfs_trace],
18 AS_HELP_STRING([--disable-libcfs-trace],
19 [disable libcfs ENTRY/EXIT]),
20 [], [enable_libcfs_trace="yes"])
21 AC_MSG_RESULT([$enable_libcfs_trace])
22 AS_IF([test "x$enable_libcfs_trace" = xyes],
23 [AC_DEFINE(CDEBUG_ENTRY_EXIT, 1, [enable libcfs ENTRY/EXIT])])
25 AC_MSG_CHECKING([whether to enable LASSERT, LASSERTF])
26 AC_ARG_ENABLE([libcfs_assert],
27 AS_HELP_STRING([--disable-libcfs-assert],
28 [disable libcfs LASSERT, LASSERTF]),
29 [], [enable_libcfs_assert="yes"])
30 AC_MSG_RESULT([$enable_libcfs_assert])
31 AS_IF([test x$enable_libcfs_assert = xyes],
32 [AC_DEFINE(LIBCFS_DEBUG, 1, [enable libcfs LASSERT, LASSERTF])])
33 ]) # LIBCFS_CONFIG_CDEBUG
36 # LIBCFS_CONFIG_PANIC_DUMPLOG
38 # check if tunable panic_dumplog is wanted
40 AC_DEFUN([LIBCFS_CONFIG_PANIC_DUMPLOG], [
41 AC_MSG_CHECKING([whether to use tunable 'panic_dumplog' support])
42 AC_ARG_ENABLE([panic_dumplog],
43 AS_HELP_STRING([--enable-panic_dumplog],
44 [enable panic_dumplog]),
45 [], [enable_panic_dumplog="no"])
46 AC_MSG_RESULT([$enable_panic_dumplog])
47 AS_IF([test "x$enable_panic_dumplog" = xyes],
48 [AC_DEFINE(LNET_DUMP_ON_PANIC, 1, [use dumplog on panic])])
49 ]) # LIBCFS_CONFIG_PANIC_DUMPLOG
52 # Kernel version 3.11 introduced ktime_get_ts64
54 AC_DEFUN([LIBCFS_SRC_KTIME_GET_TS64], [
55 LB2_LINUX_TEST_SRC([ktime_get_ts64], [
56 #include <linux/hrtimer.h>
57 #include <linux/ktime.h>
59 struct timespec64 *ts = NULL;
64 AC_DEFUN([LIBCFS_KTIME_GET_TS64], [
65 AC_MSG_CHECKING([does function 'ktime_get_ts64' exist])
66 LB2_LINUX_TEST_RESULT([ktime_get_ts64], [
67 AC_DEFINE(HAVE_KTIME_GET_TS64, 1,
68 ['ktime_get_ts64' is available])
70 ]) # LIBCFS_KTIME_GET_TS64
73 # Kernel version 3.12-rc4 commit c2d816443ef30 added prepare_to_wait_event()
75 AC_DEFUN([LIBCFS_SRC_PREPARE_TO_WAIT_EVENT],[
76 LB2_LINUX_TEST_SRC([prepare_to_wait_event], [
77 #include <linux/wait.h>
79 prepare_to_wait_event(NULL, NULL, 0);
82 AC_DEFUN([LIBCFS_PREPARE_TO_WAIT_EVENT],[
83 AC_MSG_CHECKING([does function 'prepare_to_wait_event' exist])
84 LB2_LINUX_TEST_RESULT([prepare_to_wait_event], [
85 AC_DEFINE(HAVE_PREPARE_TO_WAIT_EVENT, 1,
86 ['prepare_to_wait_event' is available])
88 ]) # LIBCFS_PREPARE_TO_WAIT_EVENT
91 # Linux kernel 3.12 introduced struct kernel_param_ops
92 # This has been backported to all lustre supported
93 # clients except RHEL6. We have to handle the differences.
95 AC_DEFUN([LIBCFS_SRC_KERNEL_PARAM_OPS],[
96 LB2_LINUX_TEST_SRC([kernel_param_ops], [
97 #include <linux/module.h>
99 struct kernel_param_ops ops;
104 AC_DEFUN([LIBCFS_KERNEL_PARAM_OPS],[
105 AC_MSG_CHECKING([does 'struct kernel_param_ops' exist])
106 LB2_LINUX_TEST_RESULT([kernel_param_ops], [
107 AC_DEFINE(HAVE_KERNEL_PARAM_OPS, 1,
108 ['struct kernel_param_ops' is available])
110 ]) # LIBCFS_KERNEL_PARAM_OPS
113 # Kernel version 3.12 introduced ktime_add
115 AC_DEFUN([LIBCFS_SRC_KTIME_ADD],[
116 LB2_LINUX_TEST_SRC([ktime_add], [
117 #include <linux/hrtimer.h>
118 #include <linux/ktime.h>
120 ktime_t start = ktime_set(0, 0);
124 total = ktime_add(start, end);
127 AC_DEFUN([LIBCFS_KTIME_ADD],[
128 AC_MSG_CHECKING([does function 'ktime_add' exist])
129 LB2_LINUX_TEST_RESULT([ktime_add], [
130 AC_DEFINE(HAVE_KTIME_ADD, 1, [ktime_add is available])
132 ]) # LIBCFS_KTIME_ADD
135 # Kernel version 3.12 introduced ktime_after
137 AC_DEFUN([LIBCFS_SRC_KTIME_AFTER],[
138 LB2_LINUX_TEST_SRC([ktime_after], [
139 #include <linux/hrtimer.h>
140 #include <linux/ktime.h>
142 ktime_t start = ktime_set(0, 0);
145 ktime_after(start, end);
148 AC_DEFUN([LIBCFS_KTIME_AFTER],[
149 AC_MSG_CHECKING([does function 'ktime_after' exist])
150 LB2_LINUX_TEST_RESULT([ktime_after], [
151 AC_DEFINE(HAVE_KTIME_AFTER, 1, [ktime_after is available])
153 ]) # LIBCFS_KTIME_AFTER
156 # Kernel version 3.12 introduced ktime_before
157 # See linux commit 67cb9366ff5f99868100198efba5ca88aaa6ad25
159 AC_DEFUN([LIBCFS_SRC_KTIME_BEFORE],[
160 LB2_LINUX_TEST_SRC([ktime_before], [
161 #include <linux/hrtimer.h>
162 #include <linux/ktime.h>
164 ktime_t start = ktime_set(0, 0);
167 ktime_before(start, end);
170 AC_DEFUN([LIBCFS_KTIME_BEFORE],[
171 AC_MSG_CHECKING([does function 'ktime_before' exist])
172 LB2_LINUX_TEST_RESULT([ktime_before], [
173 AC_DEFINE(HAVE_KTIME_BEFORE, 1, [ktime_before is available])
175 ]) # LIBCFS_KTIME_BEFORE
178 # Kernel version 3.12 introduced ktime_compare
180 AC_DEFUN([LIBCFS_SRC_KTIME_COMPARE],[
181 LB2_LINUX_TEST_SRC([ktime_compare], [
182 #include <linux/hrtimer.h>
183 #include <linux/ktime.h>
185 ktime_t start = ktime_set(0, 0);
188 ktime_compare(start, end);
191 AC_DEFUN([LIBCFS_KTIME_COMPARE],[
192 AC_MSG_CHECKING([does function 'ktime_compare' exist])
193 LB2_LINUX_TEST_RESULT([ktime_compare], [
194 AC_DEFINE(HAVE_KTIME_COMPARE, 1,
195 [ktime_compare is available])
197 ]) # LIBCFS_KTIME_COMPARE
200 # FC19 3.12 kernel struct shrinker change
202 AC_DEFUN([LIBCFS_SRC_SHRINKER_COUNT],[
203 LB2_LINUX_TEST_SRC([shrinker_count_objects], [
204 #include <linux/mmzone.h>
205 #include <linux/shrinker.h>
207 struct shrinker shrinker;
209 shrinker.count_objects = NULL;
212 AC_DEFUN([LIBCFS_SHRINKER_COUNT],[
213 AC_MSG_CHECKING([shrinker has 'count_objects'])
214 LB2_LINUX_TEST_RESULT([shrinker_count_objects], [
215 AC_DEFINE(HAVE_SHRINKER_COUNT, 1,
216 [shrinker has count_objects member])
218 ]) # LIBCFS_SHRINKER_COUNT
221 # Kernel version 3.13 commit aace05097a0fd467230e39acb148be0fdaa90068
222 # add match_wildcard() function.
224 AC_DEFUN([LIBCFS_SRC_MATCH_WILDCARD],[
225 LB2_LINUX_TEST_SRC([match_wildcard], [
226 #include <linux/parser.h>
230 match = match_wildcard(NULL, NULL);
233 AC_DEFUN([LIBCFS_MATCH_WILDCARD],[
234 AC_MSG_CHECKING([does function 'match_wildcard' exist])
235 LB2_LINUX_TEST_RESULT([match_wildcard], [
236 AC_DEFINE(HAVE_MATCH_WILDCARD, 1,
237 [match_wildcard() is available])
239 ]) # LIBCFS_MATCH_WILDCARD
242 # LIBCFS_HAVE_MAPPING_AS_EXITING_FLAG
244 # v3.14-7405-g91b0abe36a7b added AS_EXITING flag with
245 # mapping_exiting() and mapping_set_exiting()
247 AC_DEFUN([LIBCFS_SRC_HAVE_MAPPING_AS_EXITING_FLAG], [
248 m4_pattern_allow([AS_EXITING])
249 LB2_LINUX_TEST_SRC([mapping_exiting_exists], [
250 #include <linux/pagemap.h>
252 enum mapping_flags flag = AS_EXITING;
256 AC_DEFUN([LIBCFS_HAVE_MAPPING_AS_EXITING_FLAG], [
257 AC_MSG_CHECKING([if enum mapping_flags has AS_EXITING flag])
258 LB2_LINUX_TEST_RESULT([mapping_exiting_exists], [
259 AC_DEFINE(HAVE_MAPPING_AS_EXITING_FLAG, 1,
260 [enum mapping_flags has AS_EXITING flag])
262 ]) # LIBCFS_HAVE_MAPPING_AS_EXITING_FLAG
265 # LIBCFS_IOV_ITER_HAS_TYPE
267 # kernel 3.15-rc4 commit 71d8e532b1549a478e6a6a8a44f309d050294d00
268 # start adding the tag to iov_iter
270 AC_DEFUN([LIBCFS_SRC_IOV_ITER_HAS_TYPE], [
271 LB2_LINUX_TEST_SRC([iov_iter_has_type_member], [
272 #include <linux/uio.h>
274 struct iov_iter iter = { .type = ITER_KVEC };
279 AC_DEFUN([LIBCFS_IOV_ITER_HAS_TYPE], [
280 AC_MSG_CHECKING([if iov_iter has member type])
281 LB2_LINUX_TEST_RESULT([iov_iter_has_type_member], [
282 AC_DEFINE(HAVE_IOV_ITER_HAS_TYPE_MEMBER, 1,
283 [if iov_iter has member type])
285 ]) # LIBCFS_IOV_ITER_HAS_TYPE
288 # LIBCFS_HAVE_NS_TO_TIMESPEC64
290 # Kernel version 3.16-rc3 commit a84d1169164b274f13b97a23ff235c000efe3b49
291 # introduced struct __kernel_old_timeval
293 AC_DEFUN([LIBCFS_SRC_HAVE_NS_TO_TIMESPEC64],[
294 LB2_LINUX_TEST_SRC([kernel_old_timeval], [
295 #include <linux/time.h>
297 struct timespec64 kts;
299 kts = ns_to_timespec64(0);
302 AC_DEFUN([LIBCFS_HAVE_NS_TO_TIMESPEC64],[
303 AC_MSG_CHECKING([does 'ns_to_timespec64()' exist])
304 LB2_LINUX_TEST_RESULT([kernel_old_timeval], [
305 AC_DEFINE(HAVE_NS_TO_TIMESPEC64, 1,
306 [ns_to_timespec64() is available])
308 ]) # LIBCFS_HAVE_NS_TO_TIMESPEC64
313 # Kernel version 3.16 commit b01250856b25f4417c51aa33afc451fbf7da1484
314 # added glob support to the Linux kernel
316 AC_DEFUN([LIBCFS_SRC_HAVE_GLOB],[
317 LB2_LINUX_TEST_SRC([glob_match], [
318 #include <linux/glob.h>
320 return glob_match(NULL, NULL);
323 AC_DEFUN([LIBCFS_HAVE_GLOB],[
324 AC_MSG_CHECKING([does 'glob_match()' exist])
325 LB2_LINUX_TEST_RESULT([glob_match], [
326 AC_DEFINE(HAVE_GLOB, 1,
327 [glob_match() is available])
329 ]) # LIBCFS_HAVE_GLOB
332 # Kernel version 3.17 changed hlist_add_after to
335 AC_DEFUN([LIBCFS_SRC_HLIST_ADD_AFTER],[
336 LB2_LINUX_TEST_SRC([hlist_add_after], [
337 #include <linux/list.h>
339 hlist_add_after(NULL, NULL);
342 AC_DEFUN([LIBCFS_HLIST_ADD_AFTER],[
343 AC_MSG_CHECKING([does function 'hlist_add_after' exist])
344 LB2_LINUX_TEST_RESULT([hlist_add_after], [
345 AC_DEFINE(HAVE_HLIST_ADD_AFTER, 1,
346 [hlist_add_after is available])
348 ]) # LIBCFS_HLIST_ADD_AFTER
351 # Kernel version 3.17 introduced struct timespec64
353 AC_DEFUN([LIBCFS_SRC_TIMESPEC64],[
354 LB2_LINUX_TEST_SRC([timespec64], [
355 #include <linux/time.h>
357 struct timespec64 ts;
363 AC_DEFUN([LIBCFS_TIMESPEC64],[
364 AC_MSG_CHECKING([does 'struct timespec64' exist])
365 LB2_LINUX_TEST_RESULT([timespec64], [
366 AC_DEFINE(HAVE_TIMESPEC64, 1,
367 ['struct timespec64' is available])
369 ]) # LIBCFS_TIMESPEC64
372 # Kernel version 3.17 introduced ktime_get_real_ts64
374 AC_DEFUN([LIBCFS_SRC_KTIME_GET_REAL_TS64],[
375 LB2_LINUX_TEST_SRC([ktime_get_real_ts64], [
376 #include <linux/ktime.h>
378 struct timespec64 *ts = NULL;
380 ktime_get_real_ts64(ts);
383 AC_DEFUN([LIBCFS_KTIME_GET_REAL_TS64],[
384 AC_MSG_CHECKING([does function 'ktime_get_real_ts64' exist])
385 LB2_LINUX_TEST_RESULT([ktime_get_real_ts64], [
386 AC_DEFINE(HAVE_KTIME_GET_REAL_TS64, 1,
387 ['ktime_get_real_ts64' is available])
389 ]) # LIBCFS_KTIME_GET_REAL_TS64
392 # Kernel version 3.17 introduced ktime_get_real_seconds
394 AC_DEFUN([LIBCFS_SRC_KTIME_GET_REAL_SECONDS],[
395 LB2_LINUX_TEST_SRC([ktime_get_real_seconds], [
396 #include <linux/hrtimer.h>
397 #include <linux/ktime.h>
401 now = ktime_get_real_seconds();
404 AC_DEFUN([LIBCFS_KTIME_GET_REAL_SECONDS],[
405 AC_MSG_CHECKING([does function 'ktime_get_real_ts64' exist])
406 LB2_LINUX_TEST_RESULT([ktime_get_real_seconds], [
407 AC_DEFINE(HAVE_KTIME_GET_REAL_SECONDS, 1,
408 ['ktime_get_real_seconds' is available])
410 ]) # LIBCFS_KTIME_GET_REAL_SECONDS
413 # Kernel version 3.17 created ktime_get_ns wrapper
415 AC_DEFUN([LIBCFS_SRC_KTIME_GET_NS],[
416 LB2_LINUX_TEST_SRC([ktime_get_ns], [
417 #include <linux/hrtimer.h>
418 #include <linux/ktime.h>
422 nanoseconds = ktime_get_ns();
425 AC_DEFUN([LIBCFS_KTIME_GET_NS],[
426 AC_MSG_CHECKING([does function 'ktime_get_ns' exist])
427 LB2_LINUX_TEST_RESULT([ktime_get_ns], [],[
428 AC_DEFINE(NEED_KTIME_GET_NS, 1,
429 ['ktime_get_ns' is not available])
431 ]) # LIBCFS_KTIME_GET_NS
434 # Kernel version 3.17 created ktime_get_real_ns wrapper
436 AC_DEFUN([LIBCFS_SRC_KTIME_GET_REAL_NS],[
437 LB2_LINUX_TEST_SRC([ktime_get_real_ns], [
438 #include <linux/hrtimer.h>
439 #include <linux/ktime.h>
443 nanoseconds = ktime_get_real_ns();
446 AC_DEFUN([LIBCFS_KTIME_GET_REAL_NS],[
447 AC_MSG_CHECKING([does function 'ktime_get_real_ns' exist])
448 LB2_LINUX_TEST_RESULT([ktime_get_real_ns], [],[
449 AC_DEFINE(NEED_KTIME_GET_REAL_NS, 1,
450 ['ktime_get_real_ns' is not available])
452 ]) # LIBCFS_KTIME_GET_REAL_NS
455 # Kernel version 3.17 introduced ktime_to_timespec64
457 AC_DEFUN([LIBCFS_SRC_KTIME_TO_TIMESPEC64],[
458 LB2_LINUX_TEST_SRC([ktime_to_timespec64], [
459 #include <linux/hrtimer.h>
460 #include <linux/ktime.h>
462 ktime_t now = ktime_set(0, 0);
463 struct timespec64 ts;
465 ts = ktime_to_timespec64(now);
468 AC_DEFUN([LIBCFS_KTIME_TO_TIMESPEC64],[
469 AC_MSG_CHECKING([does function 'ktime_to_timespec64' exist])
470 LB2_LINUX_TEST_RESULT([ktime_to_timespec64], [
471 AC_DEFINE(HAVE_KTIME_TO_TIMESPEC64, 1,
472 ['ktime_to_timespec64' is available])
474 ]) # LIBCFS_KTIME_TO_TIMESPEC64
477 # Kernel version 3.17 introduced timespec64_sub
479 AC_DEFUN([LIBCFS_SRC_TIMESPEC64_SUB],[
480 LB2_LINUX_TEST_SRC([timespec64_sub], [
481 #include <linux/time.h>
483 struct timespec64 later = { }, earlier = { }, diff;
485 diff = timespec64_sub(later, earlier);
488 AC_DEFUN([LIBCFS_TIMESPEC64_SUB],[
489 AC_MSG_CHECKING([does function 'timespec64_sub' exist])
490 LB2_LINUX_TEST_RESULT([timespec64_sub], [
491 AC_DEFINE(HAVE_TIMESPEC64_SUB, 1,
492 ['timespec64_sub' is available])
494 ]) # LIBCFS_TIMESPEC64_SUB
497 # Kernel version 3.17 introduced timespec64_to_ktime
499 AC_DEFUN([LIBCFS_SRC_TIMESPEC64_TO_KTIME],[
500 LB2_LINUX_TEST_SRC([timespec64_to_ktime], [
501 #include <linux/ktime.h>
503 struct timespec64 ts;
506 now = timespec64_to_ktime(ts);
509 AC_DEFUN([LIBCFS_TIMESPEC64_TO_KTIME],[
510 AC_MSG_CHECKING([does function 'timespec64_to_ktime' exist])
511 LB2_LINUX_TEST_RESULT([timespec64_to_ktime], [
512 AC_DEFINE(HAVE_TIMESPEC64_TO_KTIME, 1,
513 ['timespec64_to_ktime' is available])
515 ]) # LIBCFS_TIMESPEC64_TO_KTIME
518 # Kernel version 3.19 introduced ktime_get_seconds
520 AC_DEFUN([LIBCFS_SRC_KTIME_GET_SECONDS],[
521 LB2_LINUX_TEST_SRC([ktime_get_seconds], [
522 #include <linux/ktime.h>
526 now = ktime_get_seconds();
529 AC_DEFUN([LIBCFS_KTIME_GET_SECONDS],[
530 AC_MSG_CHECKING([does function 'ktime_get_seconds' exist])
531 LB2_LINUX_TEST_RESULT([ktime_get_seconds], [
532 AC_DEFINE(HAVE_KTIME_GET_SECONDS, 1,
533 ['ktime_get_seconds' is available])
535 ]) # LIBCFS_KTIME_GET_SECONDS
538 # Kernel version 3.19 commit v3.18-rc2-26-g61ada528dea0
539 # introduce wait_woken()
541 AC_DEFUN([LIBCFS_SRC_WAIT_WOKEN],[
542 LB2_LINUX_TEST_SRC([wait_woken], [
543 #include <linux/wait.h>
545 wait_woken(NULL, 0, 0);
548 AC_DEFUN([LIBCFS_WAIT_WOKEN],[
549 AC_MSG_CHECKING([does function 'wait_woken' exist])
550 LB2_LINUX_TEST_RESULT([wait_woken], [
551 AC_DEFINE(HAVE_WAIT_WOKEN, 1,
552 ['wait_woken, is available'])
554 ]) # LIBCFS_WAIT_WOKEN
557 # Kernel version 4.0 commit 41fbf3b39d5eca01527338b4d0ee15ee1ae1023c
558 # introduced the helper function ktime_ms_delta.
560 AC_DEFUN([LIBCFS_SRC_KTIME_MS_DELTA],[
561 LB2_LINUX_TEST_SRC([ktime_ms_delta], [
562 #include <linux/ktime.h>
564 ktime_t start = ktime_set(0, 0);
567 ktime_ms_delta(start, end);
570 AC_DEFUN([LIBCFS_KTIME_MS_DELTA],[
571 AC_MSG_CHECKING([does function 'ktime_ms_delta' exist])
572 LB2_LINUX_TEST_RESULT([ktime_ms_delta], [
573 AC_DEFINE(HAVE_KTIME_MS_DELTA, 1,
574 ['ktime_ms_delta' is available])
576 ]) # LIBCFS_KTIME_MS_DELTA
579 # Kernel version 4.1 commit b51d23e4e9fea6f264d39535c2a62d1f51e7ccc3
580 # create per module locks which added kernel_param_[un]lock(). Older
581 # kernels you have to use __kernel_param_[un]lock(). In that case its
582 # a global lock for all modules but that is okay since its a rare event.
584 AC_DEFUN([LIBCFS_SRC_KERNEL_PARAM_LOCK],[
585 LB2_LINUX_TEST_SRC([kernel_param_lock], [
586 #include <linux/moduleparam.h>
588 kernel_param_lock(NULL);
589 kernel_param_unlock(NULL);
592 AC_DEFUN([LIBCFS_KERNEL_PARAM_LOCK],[
593 AC_MSG_CHECKING([does function 'kernel_param_[un]lock' exist])
594 LB2_LINUX_TEST_RESULT([kernel_param_lock], [
595 AC_DEFINE(HAVE_KERNEL_PARAM_LOCK, 1,
596 ['kernel_param_[un]lock' is available])
598 ]) # LIBCFS_KERNEL_PARAM_LOCK
601 # Kernel version 4.2 changed topology_thread_cpumask
602 # to topology_sibling_cpumask
604 AC_DEFUN([LIBCFS_SRC_HAVE_TOPOLOGY_SIBLING_CPUMASK],[
605 LB2_LINUX_TEST_SRC([topology_sibling_cpumask], [
606 #include <linux/topology.h>
608 const struct cpumask *mask;
610 mask = topology_sibling_cpumask(0);
613 AC_DEFUN([LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK],[
614 AC_MSG_CHECKING([does function 'topology_sibling_cpumask' exist])
615 LB2_LINUX_TEST_RESULT([topology_sibling_cpumask], [
616 AC_DEFINE(HAVE_TOPOLOGY_SIBLING_CPUMASK, 1,
617 [topology_sibling_cpumask is available])
619 ]) # LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
622 # Kernel version 4.4 commit ef951599074ba4fad2d0efa0a977129b41e6d203
623 # introduced kstrtobool and kstrtobool_from_user.
625 AC_DEFUN([LIBCFS_SRC_KSTRTOBOOL_FROM_USER], [
626 LB2_LINUX_TEST_SRC([kstrtobool_from_user], [
627 #include <linux/kernel.h>
630 return kstrtobool_from_user(NULL, 0, &result);
633 AC_DEFUN([LIBCFS_KSTRTOBOOL_FROM_USER], [
634 AC_MSG_CHECKING([if Linux kernel has 'kstrtobool_from_user'])
635 LB2_LINUX_TEST_RESULT([kstrtobool_from_user], [
636 AC_DEFINE(HAVE_KSTRTOBOOL_FROM_USER, 1,
637 [kernel has kstrtobool_from_user])
639 ]) # LIBCFS_KSTRTOBOOL_FROM_USER
642 # LIBCFS_NETLINK_CALLBACK_START
644 # Kernel version 4.4-rc3 commit fc9e50f5a5a4e1fa9ba2756f745a13e693cf6a06
645 # added a start function callback for struct netlink_callback
647 AC_DEFUN([LIBCFS_SRC_NETLINK_CALLBACK_START], [
648 LB2_LINUX_TEST_SRC([cb_start], [
649 #include <net/genetlink.h>
656 AC_DEFUN([LIBCFS_NETLINK_CALLBACK_START], [
657 AC_MSG_CHECKING([if struct genl_ops has start callback])
658 LB2_LINUX_TEST_RESULT([cb_start], [
659 AC_DEFINE(HAVE_NETLINK_CALLBACK_START, 1,
660 [struct genl_ops has 'start' callback])
662 ]) # LIBCFS_NETLINK_CALLBACK_START
665 # Kernel version 4.5-rc1 commit d12481bc58fba89427565f8592e88446ec084a24
666 # added crypto hash helpers
668 AC_DEFUN([LIBCFS_SRC_CRYPTO_HASH_HELPERS], [
669 LB2_LINUX_TEST_SRC([crypto_hash_helpers], [
670 #include <crypto/hash.h>
672 crypto_ahash_alg_name(NULL);
673 crypto_ahash_driver_name(NULL);
676 AC_DEFUN([LIBCFS_CRYPTO_HASH_HELPERS], [
677 AC_MSG_CHECKING([does crypto hash helper functions exist])
678 LB2_LINUX_TEST_RESULT([crypto_hash_helpers], [
679 AC_DEFINE(HAVE_CRYPTO_HASH_HELPERS, 1,
680 [crypto hash helper functions are available])
682 ]) # LIBCFS_CRYPTO_HASH_HELPERS
685 # Kernel version 4.5-rc1 commit 3502cad73c4bbf8f6365d539e814159275252c59
686 # introduced rhashtable_replace_fast
688 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_REPLACE], [
689 LB2_LINUX_TEST_SRC([rhashtable_replace_fast], [
690 #include <linux/rhashtable.h>
692 const struct rhashtable_params params = { 0 };
694 rhashtable_replace_fast(NULL, NULL, NULL, params);
697 AC_DEFUN([LIBCFS_RHASHTABLE_REPLACE], [
698 AC_MSG_CHECKING([if 'rhashtable_replace_fast' exists])
699 LB2_LINUX_TEST_RESULT([rhashtable_replace_fast], [
700 AC_DEFINE(HAVE_RHASHTABLE_REPLACE, 1,
701 [rhashtable_replace_fast() is available])
703 ]) # LIBCFS_RHASHTABLE_REPLACE
706 # Kernel version 4.5-rc3 commit 2fe829aca9d7bed5fd6b49c6a1452e5e486b6cc3dd
707 # made kset_find_obj() exportable to modules
709 AC_DEFUN([LIBCFS_EXPORT_KSET_FIND_OBJ], [
710 LB_CHECK_EXPORT([kset_find_obj], [lib/kobject.c],
711 [AC_DEFINE(HAVE_KSET_FIND_OBJ, 1,
712 [kset_find_obj is exported by the kernel])])
713 ]) # LIBCFS_EXPORT_KSET_FIND_OBJ
716 # Kernel version 4.6+ commit ef703f49a6c5b909a85149bb6625c4ed0d697186
717 # fixed the brokenness of hash_64(). The fix removed GOLDEN_RATIO_PRIME_64
718 # since it was a poor prime value.
720 AC_DEFUN([LIBCFS_SRC_BROKEN_HASH_64], [
721 LB2_LINUX_TEST_SRC([broken_hash_64], [
722 #include <linux/hash.h>
724 int tmp = GOLDEN_RATIO_PRIME_64;
727 AC_DEFUN([LIBCFS_BROKEN_HASH_64], [
728 AC_MSG_CHECKING([kernel has fixed hash_64()])
729 LB2_LINUX_TEST_RESULT([broken_hash_64], [
730 AC_DEFINE(HAVE_BROKEN_HASH_64, 1, [kernel hash_64() is broken])
732 ]) # LIBCFS_BROKEN_HASH_64
735 # LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
737 # linux 4.6 kernel changed stacktrace_ops address to return an int
739 AC_DEFUN([LIBCFS_SRC_STACKTRACE_OPS_ADDRESS_RETURN_INT], [
740 LB2_LINUX_TEST_SRC([stacktrace_ops_address_return_int], [
741 #include <asm/stacktrace.h>
745 rc = ((struct stacktrace_ops *)0)->address(NULL, 0, 0);
748 AC_DEFUN([LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT], [
749 AC_MSG_CHECKING([if 'struct stacktrace_ops' address function returns an int])
750 LB2_LINUX_TEST_RESULT([stacktrace_ops_address_return_int], [
751 AC_DEFINE(STACKTRACE_OPS_ADDRESS_RETURN_INT, 1,
752 ['struct stacktrace_ops' address function returns an int])
754 ]) # LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
757 # Kernel version 4.6 removed both struct task_struct and struct mm_struct
758 # arguments to get_user_pages
760 AC_DEFUN([LIBCFS_SRC_GET_USER_PAGES_6ARG], [
761 LB2_LINUX_TEST_SRC([get_user_pages_6arg], [
762 #include <linux/mm.h>
766 rc = get_user_pages(0, 0, 0, 0, NULL, NULL);
769 AC_DEFUN([LIBCFS_GET_USER_PAGES_6ARG], [
770 AC_MSG_CHECKING([if 'get_user_pages()' takes 6 arguments])
771 LB2_LINUX_TEST_RESULT([get_user_pages_6arg], [
772 AC_DEFINE(HAVE_GET_USER_PAGES_6ARG, 1,
773 [get_user_pages takes 6 arguments])
775 ]) # LIBCFS_GET_USER_PAGES_6ARG
780 # 4.6 kernel created stringhash.h which moved stuff out of dcache.h
781 # commit f4bcbe792b8f434e32487cff9d9e30ab45a3ce02
783 AC_DEFUN([LIBCFS_STRINGHASH], [
784 LB_CHECK_LINUX_HEADER([linux/stringhash.h], [
785 AC_DEFINE(HAVE_STRINGHASH, 1,
786 [stringhash.h is present])])
787 ]) # LIBCFS_STRINGHASH
790 # LIBCFS_RHASHTABLE_INSERT_FAST
792 # 4.7+ kernel commit 5ca8cc5bf11faed257c762018aea9106d529232f
793 # changed __rhashtable_insert_fast to support the new function
794 # rhashtable_lookup_get_insert_key().
796 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_INSERT_FAST], [
797 LB2_LINUX_TEST_SRC([rhashtable_insert_fast], [
798 #include <linux/rhashtable.h>
800 const struct rhashtable_params params = { 0 };
803 rc = __rhashtable_insert_fast(NULL, NULL, NULL, params);
807 AC_DEFUN([LIBCFS_RHASHTABLE_INSERT_FAST], [
808 AC_MSG_CHECKING([if internal '__rhashtable_insert_fast()' returns int])
809 LB2_LINUX_TEST_RESULT([rhashtable_insert_fast], [
810 AC_DEFINE(HAVE_HASHTABLE_INSERT_FAST_RETURN_INT, 1,
811 ['__rhashtable_insert_fast()' returns int])
813 ]) # LIBCFS_RHASHTABLE_INSERT_FAST
816 # Kernel version 4.7-rc1 commit 8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697
817 # added 3rd arg to rhashtable_walk_init
819 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_WALK_INIT_3ARG], [
820 LB2_LINUX_TEST_SRC([rhashtable_walk_init], [
821 #include <linux/gfp.h>
822 #include <linux/rhashtable.h>
824 rhashtable_walk_init(NULL, NULL, GFP_KERNEL);
827 AC_DEFUN([LIBCFS_RHASHTABLE_WALK_INIT_3ARG], [
828 AC_MSG_CHECKING([if 'rhashtable_walk_init' has 3 args])
829 LB2_LINUX_TEST_RESULT([rhashtable_walk_init], [
830 AC_DEFINE(HAVE_3ARG_RHASHTABLE_WALK_INIT, 1,
831 [rhashtable_walk_init() has 3 args])
833 ]) # LIBCFS_RHASHTABLE_WALK_INIT_3ARG
836 # Kernel version 4.8-rc6 commit ca26893f05e86497a86732768ec53cd38c0819ca
837 # introduced rhashtable_lookup
839 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_LOOKUP], [
840 LB2_LINUX_TEST_SRC([rhashtable_lookup], [
841 #include <linux/rhashtable.h>
843 const struct rhashtable_params params = { 0 };
846 ret = rhashtable_lookup(NULL, NULL, params);
849 AC_DEFUN([LIBCFS_RHASHTABLE_LOOKUP], [
850 AC_MSG_CHECKING([if 'rhashtable_lookup' exist])
851 LB2_LINUX_TEST_RESULT([rhashtable_lookup], [
852 AC_DEFINE(HAVE_RHASHTABLE_LOOKUP, 1,
853 [rhashtable_lookup() is available])
855 ]) # LIBCFS_RHASHTABLE_LOOKUP
859 # Kernel version 4.8-rc6 commit ca26893f05e86497a86732768ec53cd38c0819ca
860 # created the rhlist interface to allow inserting duplicate objects
861 # into the same table.
863 AC_DEFUN([LIBCFS_SRC_RHLTABLE], [
864 LB2_LINUX_TEST_SRC([rhtable], [
865 #include <linux/rhashtable.h>
867 struct rhltable *hlt = NULL;
869 rhltable_destroy(hlt);
872 AC_DEFUN([LIBCFS_RHLTABLE], [
873 AC_MSG_CHECKING([does 'struct rhltable' exist])
874 LB2_LINUX_TEST_RESULT([rhtable], [
875 AC_DEFINE(HAVE_RHLTABLE, 1, [struct rhltable exist])
880 # LIBCFS_STACKTRACE_OPS
882 # Kernel version 4.8 commit c8fe4609827aedc9c4b45de80e7cdc8ccfa8541b
883 # removed both struct stacktrace_ops and dump_trace() function
885 AC_DEFUN([LIBCFS_SRC_STACKTRACE_OPS], [
886 LB2_LINUX_TEST_SRC([stacktrace_ops], [
889 #include <asm/stacktrace.h>
891 struct stacktrace_ops ops;
895 AC_DEFUN([LIBCFS_STACKTRACE_OPS], [
896 AC_MSG_CHECKING([if 'struct stacktrace_ops' exists])
897 LB2_LINUX_TEST_RESULT([stacktrace_ops], [
898 AC_DEFINE(HAVE_STACKTRACE_OPS, 1,
899 [struct stacktrace_ops exists])
901 ]) # LIBCFS_STACKTRACE_OPS
904 # LIBCFS_RHASHTABLE_WALK_ENTER
906 # Kernel version 4.9-rc1 commit 246779dd090bd1b74d2652b3a6ca7759f593b27a
907 # introduced rhashtable_walk_enter
909 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_WALK_ENTER], [
910 LB2_LINUX_TEST_SRC([rhashtable_walk_enter], [
911 #include <linux/rhashtable.h>
913 rhashtable_walk_enter(NULL, NULL);
916 AC_DEFUN([LIBCFS_RHASHTABLE_WALK_ENTER], [
917 AC_MSG_CHECKING([if 'rhashtable_walk_enter' exists])
918 LB2_LINUX_TEST_RESULT([rhashtable_walk_enter], [
919 AC_DEFINE(HAVE_RHASHTABLE_WALK_ENTER, 1,
920 [rhashtable_walk_enter() is available])
922 ]) # LIBCFS_RHASHTABLE_WALK_ENTER
925 # Kernel version 4.9 commit 768ae309a96103ed02eb1e111e838c87854d8b51
926 # mm: replace get_user_pages() write/force parameters with gup_flags
928 AC_DEFUN([LIBCFS_SRC_GET_USER_PAGES_GUP_FLAGS], [
929 LB2_LINUX_TEST_SRC([get_user_pages_gup_flags], [
930 #include <linux/mm.h>
933 rc = get_user_pages(0, 0, FOLL_WRITE, NULL, NULL);
936 AC_DEFUN([LIBCFS_GET_USER_PAGES_GUP_FLAGS], [
937 AC_MSG_CHECKING([if 'get_user_pages()' takes gup_flags in arguments])
938 LB2_LINUX_TEST_RESULT([get_user_pages_gup_flags], [
939 AC_DEFINE(HAVE_GET_USER_PAGES_GUP_FLAGS, 1,
940 [get_user_pages takes gup_flags in arguments])
942 ]) # LIBCFS_GET_USER_PAGES_GUP_FLAGS
945 # Kernel version 4.10 commit 7b737965b33188bd3dbb44e938535c4006d97fbb
946 # libcfs: Convert to hotplug state machine
948 AC_DEFUN([LIBCFS_SRC_HOTPLUG_STATE_MACHINE], [
949 LB2_LINUX_TEST_SRC([cpu_hotplug_state_machine], [
950 #include <linux/cpuhotplug.h>
952 cpuhp_remove_state(CPUHP_LUSTRE_CFS_DEAD);
955 AC_DEFUN([LIBCFS_HOTPLUG_STATE_MACHINE], [
956 AC_MSG_CHECKING([if libcfs supports CPU hotplug state machine])
957 LB2_LINUX_TEST_RESULT([cpu_hotplug_state_machine], [
958 AC_DEFINE(HAVE_HOTPLUG_STATE_MACHINE, 1,
959 [hotplug state machine is supported])
961 ]) # LIBCFS_HOTPLUG_STATE_MACHINE
964 # Kernel version 4.10-rc3 commit f405df5de3170c00e5c54f8b7cf4766044a032ba
965 # introduced refcount_t which is atomic_t plus over flow guards.
967 AC_DEFUN([LIBCFS_REFCOUNT_T], [
968 tmp_flags="$EXTRA_KCFLAGS"
969 EXTRA_KCFLAGS="-Werror"
970 LB_CHECK_LINUX_HEADER([linux/refcount.h], [
971 AC_DEFINE(HAVE_REFCOUNT_T, 1,
972 [refcount_t is supported])
974 EXTRA_KCFLAGS="$tmp_flags"
975 ]) # LIBCFS_REFCOUNT_T
978 # Kernel version 4.12 commit 499118e966f1d2150bd66647c8932343c4e9a0b8
979 # introduce memalloc_noreclaim_{save,restore}
981 AC_DEFUN([LIBCFS_SRC_MEMALLOC_NORECLAIM], [
982 LB2_LINUX_TEST_SRC([memalloc_noreclaim], [
983 #include <linux/sched/mm.h>
985 int flag = memalloc_noreclaim_save();
986 memalloc_noreclaim_restore(flag);
989 AC_DEFUN([LIBCFS_MEMALLOC_NORECLAIM], [
990 AC_MSG_CHECKING([if memalloc_noreclaim_{save,restore} exist])
991 LB2_LINUX_TEST_RESULT([memalloc_noreclaim], [
992 AC_DEFINE(HAVE_MEMALLOC_RECLAIM, 1,
993 [memalloc_noreclaim_{save,restore}() is supported])
995 ]) # LIBCFS_MEMALLOC_NORECLAIM
998 # LIBCFS_SCHED_HEADERS
1000 # 4.11 has broken up sched.h into more headers.
1002 AC_DEFUN([LIBCFS_SCHED_HEADERS], [
1003 LB_CHECK_LINUX_HEADER([linux/sched/signal.h], [
1004 AC_DEFINE(HAVE_SCHED_HEADERS, 1,
1005 [linux/sched header directory exist])])
1006 ]) # LIBCFS_SCHED_HEADERS
1009 # Kernel version 4.11-rc1 commit 2c935bc57221cc2edc787c72ea0e2d30cdcd3d5e
1010 # introduce kref_read
1012 AC_DEFUN([LIBCFS_SRC_KREF_READ], [
1013 LB2_LINUX_TEST_SRC([kref_read], [
1014 #include <linux/kref.h>
1019 AC_DEFUN([LIBCFS_KREF_READ], [
1020 AC_MSG_CHECKING([if 'kref_read' exists])
1021 LB2_LINUX_TEST_RESULT([kref_read], [
1022 AC_DEFINE(HAVE_KREF_READ, 1, [kref_read() is available])
1024 ]) # LIBCFS_KREF_READ
1027 # Kernel version 4.11-rc1 commit da20420f83ea0fbcf3d03afda08d971ea1d8a356
1028 # introduced rht_bucket_var
1030 AC_DEFUN([LIBCFS_SRC_RHT_BUCKET_VAR], [
1031 LB2_LINUX_TEST_SRC([rht_bucket_var], [
1032 #include <linux/rhashtable.h>
1034 rht_bucket_var(NULL, 0);
1037 AC_DEFUN([LIBCFS_RHT_BUCKET_VAR], [
1038 AC_MSG_CHECKING([if 'rht_bucket_var' exists])
1039 LB2_LINUX_TEST_RESULT([rht_bucket_var], [
1040 AC_DEFINE(HAVE_RHT_BUCKET_VAR, 1,
1041 [rht_bucket_var() is available])
1043 ]) # LIBCFS_RHT_BUCKET_VAR
1046 # Kernel version 4.11-rc5 commit fceb6435e85298f747fee938415057af837f5a8a
1047 # began the enhanchement of Netlink with extended ACK struct for advanced
1048 # error handling. By commit 7ab606d1609dd6dfeae9c8ad0a8a4e051d831e46 we
1049 # had full support for this new feature.
1051 AC_DEFUN([LIBCFS_SRC_NL_EXT_ACK], [
1052 LB2_LINUX_TEST_SRC([netlink_ext_ack], [
1053 #include <net/genetlink.h>
1055 struct genl_info info;
1060 AC_DEFUN([LIBCFS_NL_EXT_ACK], [
1061 AC_MSG_CHECKING([if Netlink supports netlink_ext_ack])
1062 LB2_LINUX_TEST_RESULT([netlink_ext_ack], [
1063 AC_DEFINE(HAVE_NL_PARSE_WITH_EXT_ACK, 1,
1064 [netlink_ext_ack is an argument to nla_parse type function])
1066 ]) # LIBCFS_NL_EXT_ACK
1069 # Kernel version 4.11 commit f9fe1c12d126f9887441fa5bb165046f30ddd4b5
1070 # introduced rhashtable_lookup_get_insert_fast
1072 AC_DEFUN([LIBCFS_SRC_RHASHTABLE_LOOKUP_GET_INSERT_FAST], [
1073 LB2_LINUX_TEST_SRC([rhashtable_lookup_get_insert_fast], [
1074 #include <linux/rhashtable.h>
1076 const struct rhashtable_params params = { 0 };
1079 ret = rhashtable_lookup_get_insert_fast(NULL, NULL, params);
1082 AC_DEFUN([LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST], [
1083 AC_MSG_CHECKING([if 'rhashtable_lookup_get_insert_fast' exist])
1084 LB2_LINUX_TEST_RESULT([rhashtable_lookup_get_insert_fast], [
1085 AC_DEFINE(HAVE_RHASHTABLE_LOOKUP_GET_INSERT_FAST, 1,
1086 [rhashtable_lookup_get_insert_fast() is available])
1088 ]) # LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST
1091 # Kernel version 4.12-rc2 8f553c498e1772cccb39a114da4a498d22992758
1092 # provide proper CPU hotplug locking
1094 AC_DEFUN([LIBCFS_SRC_CPUS_READ_LOCK], [
1095 LB2_LINUX_TEST_SRC([cpu_read_lock], [
1096 #include <linux/cpu.h>
1102 AC_DEFUN([LIBCFS_CPUS_READ_LOCK], [
1103 AC_MSG_CHECKING([if 'cpus_read_[un]lock' exist])
1104 LB2_LINUX_TEST_RESULT([cpu_read_lock], [
1105 AC_DEFINE(HAVE_CPUS_READ_LOCK, 1, ['cpus_read_lock' exist])
1107 ]) # LIBCFS_CPUS_READ_LOCK
1110 # Kernel version 4.12-rc3 f9727a17db9bab71ddae91f74f11a8a2f9a0ece6
1111 # renamed uuid_be to uuid_t
1113 AC_DEFUN([LIBCFS_SRC_UUID_T], [
1114 LB2_LINUX_TEST_SRC([uuid_t], [
1115 #include <linux/uuid.h>
1119 memset(uuid.b, 0, 16);
1122 AC_DEFUN([LIBCFS_UUID_T], [
1123 AC_MSG_CHECKING([if 'uuid_t' exist])
1124 LB2_LINUX_TEST_RESULT([uuid_t], [
1125 AC_DEFINE(HAVE_UUID_T, 1, ['uuid_t' exist])
1130 # Kernel version 4.12-rc3 commit fd851a3cdc196bfc1d229b5f22369069af532bf8
1131 # introduce processor.h
1133 AC_DEFUN([LIBCFS_HAVE_PROCESSOR_HEADER], [
1134 tmp_flags="$EXTRA_KCFLAGS"
1135 EXTRA_KCFLAGS="-Werror"
1136 LB_CHECK_LINUX_HEADER([linux/processor.h], [
1137 AC_DEFINE(HAVE_PROCESSOR_H, 1,
1138 [processor.h is present])
1140 EXTRA_KCFLAGS="$tmp_flags"
1141 ]) # LIBCFS_HAVE_PROCESSOR_HEADER
1144 # Kernel verison 4.12-rc6 commit 5dd43ce2f69d42a71dcacdb13d17d8c0ac1fe8f7
1145 # created wait_bit.h
1147 AC_DEFUN([LIBCFS_HAVE_WAIT_BIT_HEADER], [
1148 LB_CHECK_LINUX_HEADER([linux/wait_bit.h], [
1149 AC_DEFINE(HAVE_WAIT_BIT_HEADER_H, 1,
1150 [wait_bit.h is present])])
1151 ]) # LIBCFS_HAVE_WAIT_BIT_HEADER
1154 # Kernel version 4.12-rc6 commmit 2055da97389a605c8a00d163d40903afbe413921
1156 # struct wait_queue_head::task_list => ::head
1157 # struct wait_queue_entry::task_list => ::entry
1159 AC_DEFUN([LIBCFS_SRC_WAIT_QUEUE_TASK_LIST_RENAME], [
1160 LB2_LINUX_TEST_SRC([wait_queue_task_list], [
1161 #include <linux/wait.h>
1163 wait_queue_head_t e;
1165 INIT_LIST_HEAD(&e.head);
1168 AC_DEFUN([LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME], [
1169 AC_MSG_CHECKING([if linux wait_queue_head list_head is named head])
1170 LB2_LINUX_TEST_RESULT([wait_queue_task_list], [
1171 AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY_LIST, 1,
1172 [linux wait_queue_head_t list_head is name head])
1174 ]) # LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME
1177 # LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS
1179 # Kernel version v4.12-rc6-23-g76c85ddc4695
1180 # sched/wait: Standardize wait_bit_queue naming
1182 # renamed struct wait_bit_queue => wait_bit_queue_entry
1184 AC_DEFUN([LIBCFS_SRC_WAIT_BIT_QUEUE_ENTRY_EXISTS], [
1185 LB2_LINUX_TEST_SRC([struct_wait_bit_queue_entry_exists], [
1186 #include <linux/wait.h>
1187 #if HAVE_WAIT_BIT_HEADER_H
1188 #include <linux/wait_bit.h>
1191 struct wait_bit_queue_entry entry;
1192 memset(&entry, 0, sizeof(entry));
1195 AC_DEFUN([LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS], [
1196 AC_MSG_CHECKING([if struct wait_bit_queue_entry exists])
1197 LB2_LINUX_TEST_RESULT([struct_wait_bit_queue_entry_exists], [
1198 AC_DEFINE(HAVE_WAIT_BIT_QUEUE_ENTRY, 1,
1199 [if struct wait_bit_queue_entry exists])
1201 ]) # LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS
1206 # Kernel version 4.13-rc1 commit 2cf0c8b3e6942ecafe6ebb1a6d0328a81641bf39
1207 # created nla_strdup(). This is needed since push strings can be
1210 AC_DEFUN([LIBCFS_SRC_NLA_STRDUP], [
1211 LB2_LINUX_TEST_SRC([nla_strdup], [
1212 #include <net/netlink.h>
1214 char *tmp = nla_strdup(NULL, GFP_KERNEL);
1218 AC_DEFUN([LIBCFS_NLA_STRDUP], [
1219 AC_MSG_CHECKING([if 'nla_strdup()' exists])
1220 LB2_LINUX_TEST_RESULT([nla_strdup], [
1221 AC_DEFINE(HAVE_NLA_STRDUP, 1,
1222 ['nla_strdup' is available])
1224 ]) # LIBCFS_NLA_STRDUP
1227 # LIBCFS_WAIT_QUEUE_ENTRY
1229 # Kernel version 4.13 ac6424b981bce1c4bc55675c6ce11bfe1bbfa64f
1230 # Rename wait_queue_t => wait_queue_entry_t
1232 AC_DEFUN([LIBCFS_SRC_WAIT_QUEUE_ENTRY], [
1233 LB2_LINUX_TEST_SRC([wait_queue_entry], [
1234 #include <linux/wait.h>
1236 wait_queue_entry_t e;
1241 AC_DEFUN([LIBCFS_WAIT_QUEUE_ENTRY], [
1242 AC_MSG_CHECKING([if 'wait_queue_entry_t' exists])
1243 LB2_LINUX_TEST_RESULT([wait_queue_entry], [
1244 AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY, 1,
1245 ['wait_queue_entry_t' is available])
1247 ]) # LIBCFS_WAIT_QUEUE_ENTRY
1250 # LIBCFS_NEW_KERNEL_WRITE
1252 # Kernel version 4.14 e13ec939e96b13e664bb6cee361cc976a0ee621a
1253 # changed kernel_write prototype to make is plug compatible
1254 # with the unexported vfs_write()
1256 AC_DEFUN([LIBCFS_SRC_NEW_KERNEL_WRITE], [
1257 LB2_LINUX_TEST_SRC([kernel_write_match], [
1258 #include <linux/fs.h>
1260 const void *buf = NULL;
1262 return kernel_write(NULL, buf, 0, &pos);
1265 AC_DEFUN([LIBCFS_NEW_KERNEL_WRITE], [
1266 AC_MSG_CHECKING([if 'kernel_write' matches other read/write helpers])
1267 LB2_LINUX_TEST_RESULT([kernel_write_match], [
1268 AC_DEFINE(HAVE_NEW_KERNEL_WRITE, 1,
1269 ['kernel_write' aligns with read/write helpers])
1271 ]) # LIBCFS_NEW_KERNEL_WRITE
1274 # LIBCFS_MM_TOTALRAM_PAGES_FUNC
1276 # kernel 5.0 commit ca79b0c211af63fa3276f0e3fd7dd9ada2439839
1277 # mm: convert totalram_pages and totalhigh_pages variables to atomic
1279 AC_DEFUN([LIBCFS_SRC_MM_TOTALRAM_PAGES_FUNC], [
1280 LB2_LINUX_TEST_SRC([totalram_pages], [
1281 #include <linux/mm.h>
1283 totalram_pages_inc();
1286 AC_DEFUN([LIBCFS_MM_TOTALRAM_PAGES_FUNC], [
1287 AC_MSG_CHECKING([if totalram_pages is a function])
1288 LB2_LINUX_TEST_RESULT([totalram_pages], [
1289 AC_DEFINE(HAVE_TOTALRAM_PAGES_AS_FUNC, 1,
1290 [if totalram_pages is a function])
1292 ]) # LIBCFS_MM_TOTALRAM_PAGES_FUNC
1295 # LIBCFS_NEW_KERNEL_READ
1297 # 4.14 commit bdd1d2d3d251c65b74ac4493e08db18971c09240 changed
1298 # the signature of kernel_read to match other read/write helpers
1299 # and place offset last.
1301 AC_DEFUN([LIBCFS_SRC_NEW_KERNEL_READ], [
1302 LB2_LINUX_TEST_SRC([kernel_read], [
1303 #include <linux/fs.h>
1306 kernel_read(NULL, NULL, 0, &pos);
1309 AC_DEFUN([LIBCFS_NEW_KERNEL_READ], [
1310 AC_MSG_CHECKING([if 'kernel_read()' has loff_t *pos as last parameter])
1311 LB2_LINUX_TEST_RESULT([kernel_read], [
1312 AC_DEFINE(HAVE_KERNEL_READ_LAST_POSP, 1,
1313 [kernel_read() signature ends with loff_t *pos])
1315 ]) # LIBCFS_NEW_KERNEL_READ
1318 # LIBCFS_DEFINE_TIMER
1320 # Kernel version 4.14 commit 1d27e3e2252ba9d949ca82fbdb73cde102cb2067
1321 # remove expires and data arguments from DEFINE_TIMER. Also the callback
1322 # when from using unsigned long argument to using struct timer_list pointer.
1324 AC_DEFUN([LIBCFS_SRC_DEFINE_TIMER], [
1325 LB2_LINUX_TEST_SRC([define_timer], [
1326 #include <linux/timer.h>
1328 static DEFINE_TIMER(my_timer, NULL);
1331 AC_DEFUN([LIBCFS_DEFINE_TIMER], [
1332 AC_MSG_CHECKING([if DEFINE_TIMER takes only 2 arguments])
1333 LB2_LINUX_TEST_RESULT([define_timer], [
1334 AC_DEFINE(HAVE_NEW_DEFINE_TIMER, 1,
1335 [DEFINE_TIMER uses only 2 arguements])
1337 ]) # LIBCFS_DEFINE_TIMER
1340 # LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
1342 # Kernel 2.6.27 commit 8594698ebddeef5443b7da8258ae33b3eaca61d5
1343 # exported save_stack_trace_tsk for x86.
1344 # Kernel 2.6.27 commit 01f4b8b8b8db09b88be7df7e51192e4e678b69d3
1345 # exported save_stack_trace_tsk for powerpc
1346 # Kernel 4.13 commit e27c7fa015d61c8be6a2c32b2144aad2ae6ec975
1347 # exported save_stack_trace_tsk for arm64
1348 # Kernel 4.14 commit 9a3dc3186fc3795e076a4122da9e0258651a9631
1349 # exported save_stack_trace_tsk for arm
1351 AC_DEFUN([LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK], [
1352 LB_CHECK_EXPORT([save_stack_trace_tsk], [arch/$SUBARCH/kernel/stacktrace.c],
1353 [AC_DEFINE(HAVE_SAVE_STACK_TRACE_TSK, 1,
1354 [save_stack_trace_tsk is exported])])
1355 ]) # LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
1358 # LIBCFS_LOCKDEP_IS_HELD
1360 # Kernel v4.15-rc8-106-g08f36ff64234
1361 # lockdep: Make lockdep checking constant
1363 AC_DEFUN([LIBCFS_SRC_LOCKDEP_IS_HELD], [
1364 LB2_LINUX_TEST_SRC([lockdep_is_held], [
1365 #include <linux/lockdep.h>
1367 #ifdef CONFIG_LOCKDEP
1368 const struct spinlock *lock = NULL;
1370 lockdep_is_held(lock);
1374 AC_DEFUN([LIBCFS_LOCKDEP_IS_HELD], [
1375 AC_MSG_CHECKING([if 'lockdep_is_held()' uses const argument])
1376 LB2_LINUX_TEST_RESULT([lockdep_is_held], [],[
1377 AC_DEFINE(NEED_LOCKDEP_IS_HELD_DISCARD_CONST, 1,
1378 [lockdep_is_held() argument is const])
1380 ]) # LIBCFS_LOCKDEP_IS_HELD
1383 # LIBCFS_TIMER_SETUP
1385 # Kernel version 4.15 commit e99e88a9d2b067465adaa9c111ada99a041bef9a
1386 # setup_timer() was replaced by timer_setup(), where the callback
1387 # argument is the structure already holding the struct timer_list.
1389 AC_DEFUN([LIBCFS_SRC_TIMER_SETUP], [
1390 LB2_LINUX_TEST_SRC([timer_setup], [
1391 #include <linux/timer.h>
1393 timer_setup(NULL, NULL, 0);
1396 AC_DEFUN([LIBCFS_TIMER_SETUP], [
1397 AC_MSG_CHECKING([if setup_timer has been replaced with timer_setup])
1398 LB2_LINUX_TEST_RESULT([timer_setup], [
1399 AC_DEFINE(HAVE_TIMER_SETUP, 1,
1400 [timer_setup has replaced setup_timer])
1402 ]) # LIBCFS_TIMER_SETUP
1405 # LIBCFS_WAIT_VAR_EVENT
1407 # Kernel version 4.16-rc4 commit 6b2bb7265f0b62605e8caee3613449ed0db270b9
1408 # added wait_var_event()
1410 AC_DEFUN([LIBCFS_SRC_WAIT_VAR_EVENT], [
1411 if test "x$lb_cv_header_linux_wait_bit_h" = xyes; then
1412 WAIT_BIT_H="-DHAVE_WAIT_BIT_HEADER_H=1"
1416 LB2_LINUX_TEST_SRC([wait_var_event], [
1417 #ifdef HAVE_WAIT_BIT_HEADER_H
1418 #include <linux/wait_bit.h>
1420 #include <linux/wait.h>
1425 AC_DEFUN([LIBCFS_WAIT_VAR_EVENT], [
1426 AC_MSG_CHECKING([if 'wait_var_event' exist])
1427 LB2_LINUX_TEST_RESULT([wait_var_event], [
1428 AC_DEFINE(HAVE_WAIT_VAR_EVENT, 1,
1429 ['wait_var_event' is available])
1431 ]) # LIBCFS_WAIT_VAR_EVENT
1434 # LIBCFS_BITMAP_ALLOC
1436 # Kernel version 4.17 commit c42b65e363ce97a828f81b59033c3558f8fa7f70
1437 # added bitmap memory allocation handling.
1439 AC_DEFUN([LIBCFS_SRC_BITMAP_ALLOC], [
1440 LB2_LINUX_TEST_SRC([bitmap_alloc], [
1441 #include <linux/bitmap.h>
1443 unsigned long *map = bitmap_alloc(1, GFP_KERNEL);
1447 AC_DEFUN([LIBCFS_BITMAP_ALLOC], [
1448 AC_MSG_CHECKING([if Linux bitmap memory management exist])
1449 LB2_LINUX_TEST_RESULT([bitmap_alloc], [
1450 AC_DEFINE(HAVE_BITMAP_ALLOC, 1,
1451 [Linux bitmap can be allocated])
1453 ]) # LIBCFS_BITMAP_ALLOC
1456 # LIBCFS_CLEAR_AND_WAKE_UP_BIT
1458 # Kernel version 4.17-rc2 commit 8236b0ae31c837d2b3a2565c5f8d77f637e824cc
1459 # added clear_and_wake_up_bit()
1461 AC_DEFUN([LIBCFS_SRC_CLEAR_AND_WAKE_UP_BIT], [
1462 if test "x$lb_cv_header_linux_wait_bit_h" = xyes; then
1463 WAIT_BIT_H="-DHAVE_WAIT_BIT_HEADER_H=1"
1467 LB2_LINUX_TEST_SRC([clear_and_wake_up_bit], [
1468 #ifdef HAVE_WAIT_BIT_HEADER_H
1469 #include <linux/wait_bit.h>
1471 #include <linux/wait.h>
1473 clear_and_wake_up_bit(0, NULL);
1476 AC_DEFUN([LIBCFS_CLEAR_AND_WAKE_UP_BIT], [
1477 AC_MSG_CHECKING([if 'clear_and_wake_up_bit' exist])
1478 LB2_LINUX_TEST_RESULT([clear_and_wake_up_bit], [
1479 AC_DEFINE(HAVE_CLEAR_AND_WAKE_UP_BIT, 1,
1480 ['clear_and_wake_up_bit' is available])
1482 ]) # LIBCFS_CLEAR_AND_WAKE_UP_BIT
1485 # LIBCFS_TCP_SOCK_SET_NODELAY
1487 # kernel 4.18.0-293.el8
1488 # tcp_sock_set_nodelay() was added
1489 AC_DEFUN([LIBCFS_SRC_TCP_SOCK_SET_NODELAY], [
1490 LB2_LINUX_TEST_SRC([tcp_sock_set_nodelay_exists], [
1491 #include <linux/tcp.h>
1493 tcp_sock_set_nodelay(NULL);
1496 AC_DEFUN([LIBCFS_TCP_SOCK_SET_NODELAY], [
1497 AC_MSG_CHECKING([if 'tcp_sock_set_nodelay()' exists])
1498 LB2_LINUX_TEST_RESULT([tcp_sock_set_nodelay_exists], [
1499 AC_DEFINE(HAVE_TCP_SOCK_SET_NODELAY, 1,
1500 ['tcp_sock_set_nodelay()' exists])
1502 ]) # LIBCFS_TCP_SOCK_SET_NODELAY
1505 # LIBCFS_TCP_SOCK_SET_KEEPIDLE
1507 # kernel 4.18.0-293.el8
1508 # tcp_sock_set_keepidle() was added
1510 AC_DEFUN([LIBCFS_SRC_TCP_SOCK_SET_KEEPIDLE], [
1511 LB2_LINUX_TEST_SRC([tcp_sock_set_keepidle_exists], [
1512 #include <linux/tcp.h>
1514 tcp_sock_set_keepidle(NULL, 0);
1517 AC_DEFUN([LIBCFS_TCP_SOCK_SET_KEEPIDLE], [
1518 AC_MSG_CHECKING([if 'tcp_sock_set_keepidle()' exists])
1519 LB2_LINUX_TEST_RESULT([tcp_sock_set_keepidle_exists], [
1520 AC_DEFINE(HAVE_TCP_SOCK_SET_KEEPIDLE, 1,
1521 ['tcp_sock_set_keepidle()' exists])
1523 ]) # LIBCFS_TCP_SOCK_SET_KEEPIDLE
1526 # LIBCFS_TCP_SOCK_SET_QUICKACK
1527 # kernel v5.7-rc6-2504-gddd061b8daed
1528 # tcp: add tcp_sock_set_quickack
1530 AC_DEFUN([LIBCFS_SRC_TCP_SOCK_SET_QUICKACK], [
1531 LB2_LINUX_TEST_SRC([tcp_sock_set_quickack_exists], [
1532 #include <linux/tcp.h>
1534 tcp_sock_set_quickack(NULL, 0);
1537 AC_DEFUN([LIBCFS_TCP_SOCK_SET_QUICKACK], [
1538 AC_MSG_CHECKING([if 'tcp_sock_set_quickack()' exists])
1539 LB2_LINUX_TEST_RESULT([tcp_sock_set_quickack_exists], [
1540 AC_DEFINE(HAVE_TCP_SOCK_SET_QUICKACK, 1,
1541 ['tcp_sock_set_quickack()' exists])
1543 ]) # LIBCFS_TCP_SOCK_SET_QUICKACK
1546 # LIBCFS_TCP_SOCK_SET_KEEPINTVL
1547 # v5.7-rc6-2508-gd41ecaac903c
1548 # tcp: add tcp_sock_set_keepintvl
1550 AC_DEFUN([LIBCFS_SRC_TCP_SOCK_SET_KEEPINTVL], [
1551 LB2_LINUX_TEST_SRC([tcp_sock_set_keepintvl_exists], [
1552 #include <linux/tcp.h>
1554 tcp_sock_set_keepintvl(NULL, 0);
1557 AC_DEFUN([LIBCFS_TCP_SOCK_SET_KEEPINTVL], [
1558 AC_MSG_CHECKING([if 'tcp_sock_set_keepintvl()' exists])
1559 LB2_LINUX_TEST_RESULT([tcp_sock_set_keepintvl_exists], [
1560 AC_DEFINE(HAVE_TCP_SOCK_SET_KEEPINTVL, 1,
1561 ['tcp_sock_set_keepintvl()' exists])
1563 ]) # LIBCFS_TCP_SOCK_SET_KEEPINTVL
1566 # LIBCFS_TCP_SOCK_SET_KEEPCNT
1567 # v5.7-rc6-2509-g480aeb9639d6
1568 # tcp: add tcp_sock_set_keepcnt
1570 AC_DEFUN([LIBCFS_SRC_TCP_SOCK_SET_KEEPCNT], [
1571 LB2_LINUX_TEST_SRC([tcp_sock_set_keepcnt_exists], [
1572 #include <linux/tcp.h>
1574 tcp_sock_set_keepcnt(NULL, 0);
1577 AC_DEFUN([LIBCFS_TCP_SOCK_SET_KEEPCNT], [
1578 AC_MSG_CHECKING([if 'tcp_sock_set_keepcnt()' exists])
1579 LB2_LINUX_TEST_RESULT([tcp_sock_set_keepcnt_exists], [
1580 AC_DEFINE(HAVE_TCP_SOCK_SET_KEEPCNT, 1,
1581 ['tcp_sock_set_keepcnt()' exists])
1583 ]) # LIBCFS_TCP_SOCK_SET_KEEPCNT
1586 # LIBCFS_XARRAY_SUPPORT
1588 # 4.19-rc5 kernel commit 3159f943aafdbacb2f94c38fdaadabf2bbde2a14
1589 # replaced the radix tree implementation with Xarrays. This change
1590 # introduced functionaly needed for general Xarray support
1592 AC_DEFUN([LIBCFS_SRC_XARRAY_SUPPORT], [
1593 LB2_LINUX_TEST_SRC([xarray_support], [
1594 #include <linux/xarray.h>
1599 AC_DEFUN([LIBCFS_XARRAY_SUPPORT], [
1600 AC_MSG_CHECKING([if page cache uses Xarray])
1601 LB2_LINUX_TEST_RESULT([xarray_support], [
1602 AC_DEFINE(HAVE_XARRAY_SUPPORT, 1,
1603 [kernel Xarray implementation lacks 'xa_is_value'])
1605 ]) # LIBCFS_XARRAY_SUPPORT
1608 # LIBCFS_NL_DUMP_EXT_ACK
1610 # Kernel version 4.19-rc6 commit 4a19edb60d0203cd5bf95a8b46ea8f63fd41194c
1611 # added extended ACK handling to Netlink dump handlers
1613 AC_DEFUN([LIBCFS_SRC_NL_DUMP_EXT_ACK], [
1614 LB2_LINUX_TEST_SRC([netlink_dump_ext_ack], [
1615 #include <net/netlink.h>
1617 struct netlink_callback *cb = NULL;
1621 AC_DEFUN([LIBCFS_NL_DUMP_EXT_ACK], [
1622 AC_MSG_CHECKING([if Netlink dump handlers support ext_ack])
1623 LB2_LINUX_TEST_RESULT([netlink_dump_ext_ack], [
1624 AC_DEFINE(HAVE_NL_DUMP_WITH_EXT_ACK, 1,
1625 [netlink_ext_ack is handled for Netlink dump handlers])
1627 ]) # LIBCFS_NL_DUMP_EXT_ACK
1630 # LIBCFS_HAVE_IOV_ITER_TYPE
1632 # kernel 4.20 commit 00e23707442a75b404392cef1405ab4fd498de6b
1633 # iov_iter: Use accessor functions to access an iterator's type and direction.
1635 AC_DEFUN([LIBCFS_SRC_HAVE_IOV_ITER_TYPE], [
1636 LB2_LINUX_TEST_SRC([macro_iov_iter_type_exists], [
1637 #include <linux/uio.h>
1639 struct iov_iter iter = { };
1640 enum iter_type type = iov_iter_type(&iter);
1644 AC_DEFUN([LIBCFS_HAVE_IOV_ITER_TYPE], [
1645 AC_MSG_CHECKING([if iov_iter_type exists])
1646 LB2_LINUX_TEST_RESULT([macro_iov_iter_type_exists], [
1647 AC_DEFINE(HAVE_IOV_ITER_TYPE, 1,
1648 [if iov_iter_type exists])
1650 ]) # LIBCFS_HAVE_IOV_ITER_TYPE
1655 # Kernel 5.0 commit ba20ba2e3743bac786dff777954c11930256075e
1656 # implemented generic radix trees to handle very large memory
1657 # allocation that can be used instead of vmalloc which has
1658 # a performance penalty.
1660 AC_DEFUN([LIBCFS_GENRADIX], [
1661 LB_CHECK_EXPORT([__genradix_ptr], [lib/generic-radix-tree.c],
1662 [AC_DEFINE(HAVE_GENRADIX_SUPPORT, 1,
1663 [generic-radix-tree is present])])
1664 ]) # LIBCFS_GENRADIX
1667 # LIBCFS_GET_REQUEST_KEY_AUTH
1669 # kernel 5.0 commit 822ad64d7e46a8e2c8b8a796738d7b657cbb146d
1670 # keys: Fix dependency loop between construction record and auth key
1672 # Added <keys/request_key_auth-type.h> and get_request_key_auth()
1673 # which was propagated to stable
1675 AC_DEFUN([LIBCFS_SRC_GET_REQUEST_KEY_AUTH], [
1676 LB2_LINUX_TEST_SRC([get_request_key_auth_exported], [
1677 #include <linux/key.h>
1678 #include <linux/keyctl.h>
1679 #include <keys/request_key_auth-type.h>
1682 const struct key *key = NULL;
1683 struct request_key_auth *rka = get_request_key_auth(key);
1685 ring = key_get(rka->dest_keyring);
1688 AC_DEFUN([LIBCFS_GET_REQUEST_KEY_AUTH], [
1689 AC_MSG_CHECKING([if get_request_key_auth() is available])
1690 LB2_LINUX_TEST_RESULT([get_request_key_auth_exported], [
1691 AC_DEFINE(HAVE_GET_REQUEST_KEY_AUTH, 1,
1692 [get_request_key_auth() is available])
1694 ]) # LIBCFS_GET_REQUEST_KEY_AUTH
1697 # LIBCFS_KOBJ_TYPE_DEFAULT_GROUPS
1699 # Linux commit v5.1-rc3-29-gaa30f47cf666
1700 # kobject: Add support for default attribute groups to kobj_type
1701 # Linux commit v5.18-rc1-2-gcdb4f26a63c3
1702 # kobject: kobj_type: remove default_attrs
1704 AC_DEFUN([LIBCFS_SRC_KOBJ_TYPE_DEFAULT_GROUPS],[
1705 LB2_LINUX_TEST_SRC([kobj_type_default_groups], [
1706 #include <linux/kobject.h>
1708 struct kobj_type *kobj_type = NULL;
1709 void *has = kobj_type->default_groups;
1713 AC_DEFUN([LIBCFS_KOBJ_TYPE_DEFAULT_GROUPS],[
1714 AC_MSG_CHECKING([does struct kobj_type have 'default_groups' member])
1715 LB2_LINUX_TEST_RESULT([kobj_type_default_groups], [
1716 AC_DEFINE(HAVE_KOBJ_TYPE_DEFAULT_GROUPS, 1,
1717 [struct kobj_type has 'default_groups' member])
1719 ]) # LIBCFS_KOBJ_TYPE_DEFAULT_GROUPS
1722 # LIBCFS_LOOKUP_USER_KEY
1724 # kernel 5.3 commit 3cf5d076fb4d48979f382bc9452765bf8b79e740
1725 # signal: Remove task parameter from force_sig
1727 AC_DEFUN([LIBCFS_SRC_LOOKUP_USER_KEY], [
1728 LB2_LINUX_TEST_SRC([lookup_user_key_exported], [
1729 #include <linux/key.h>
1730 #include <linux/keyctl.h>
1732 lookup_user_key(KEY_SPEC_USER_KEYRING, 0, 0);
1735 AC_DEFUN([LIBCFS_LOOKUP_USER_KEY], [
1736 AC_MSG_CHECKING([if lookup_user_key() is available])
1737 LB2_LINUX_TEST_RESULT([lookup_user_key_exported], [
1738 AC_DEFINE(HAVE_LOOKUP_USER_KEY, 1,
1739 [lookup_user_key() is available])
1741 ]) # LIBCFS_LOOKUP_USER_KEY
1744 # LIBCFS_FORCE_SIG_WITH_TASK
1746 # kernel 5.3 commit 3cf5d076fb4d48979f382bc9452765bf8b79e740
1747 # signal: Remove task parameter from force_sig
1749 AC_DEFUN([LIBCFS_SRC_FORCE_SIG_WITH_TASK], [
1750 LB2_LINUX_TEST_SRC([force_sig_with_task], [
1751 #include <linux/sched/signal.h>
1753 force_sig(SIGINT, NULL);
1756 AC_DEFUN([LIBCFS_FORCE_SIG_WITH_TASK], [
1757 AC_MSG_CHECKING([if force_sig has task parameter])
1758 LB2_LINUX_TEST_RESULT([force_sig_with_task], [
1759 AC_DEFINE(HAVE_FORCE_SIG_WITH_TASK, 1,
1760 [force_sig() has task parameter])
1762 ]) # LIBCFS_FORCE_SIG_WITH_TASK
1765 # LIBCFS_CACHE_DETAIL_WRITERS
1767 # kernel v5.3-rc2-1-g64a38e840ce5
1768 # SUNRPC: Track writers of the 'channel' file to improve cache_listeners_exist
1770 AC_DEFUN([LIBCFS_SRC_CACHE_DETAIL_WRITERS], [
1771 LB2_LINUX_TEST_SRC([cache_detail_writers_atomic], [
1772 #include <linux/sunrpc/cache.h>
1774 static struct cache_detail rsi_cache;
1776 atomic_set(&rsi_cache.writers, 0);
1779 AC_DEFUN([LIBCFS_CACHE_DETAIL_WRITERS], [
1780 AC_MSG_CHECKING([if struct cache_detail has writers])
1781 LB2_LINUX_TEST_RESULT([cache_detail_writers_atomic], [
1782 AC_DEFINE(HAVE_CACHE_DETAIL_WRITERS, 1,
1783 [struct cache_detail has writers])
1785 ]) # LIBCFS_CACHE_DETAIL_WRITERS
1788 # LIBCFS_GENL_DUMPIT_INFO
1790 # kernel v5.4-rc1 commit bf813b0afeae2f012f0e527a526c1b78ca21ad82
1791 # expanded struct genl_dumpit_info to include struct genl_family.
1793 AC_DEFUN([LIBCFS_SRC_GENL_DUMPIT_INFO], [
1794 LB2_LINUX_TEST_SRC([genl_dumpit_info], [
1795 #include <net/genetlink.h>
1797 static struct genl_dumpit_info info;
1802 AC_DEFUN([LIBCFS_GENL_DUMPIT_INFO], [
1803 AC_MSG_CHECKING([if struct genl_dumpit_info has family field])
1804 LB2_LINUX_TEST_RESULT([genl_dumpit_info], [
1805 AC_DEFINE(HAVE_GENL_DUMPIT_INFO, 1,
1806 [struct genl_dumpit_info has family field])
1808 ]) # LIBCFS_GENL_DUMPIT_INFO
1811 # LIBCFS_KALLSYMS_LOOKUP
1813 # kernel v5.6-11591-g0bd476e6c671
1814 # kallsyms: unexport kallsyms_lookup_name() and kallsyms_on_each_symbol()
1815 AC_DEFUN([LIBCFS_KALLSYMS_LOOKUP], [
1816 LB_CHECK_EXPORT([kallsyms_lookup_name], [kernel/kallsyms.c],
1817 [AC_DEFINE(HAVE_KALLSYMS_LOOKUP_NAME, 1,
1818 [kallsyms_lookup_name is exported by kernel])])
1819 ]) # LIBCFS_KALLSYMS_LOOKUP
1822 # v5.5-8862-gd56c0d45f0e2
1823 # proc: decouple proc from VFS with "struct proc_ops"
1825 AC_DEFUN([LIBCFS_SRC_HAVE_PROC_OPS], [
1826 LB2_LINUX_TEST_SRC([proc_ops], [
1827 #include <linux/proc_fs.h>
1829 static struct proc_ops *my_proc;
1831 my_proc->proc_lseek = NULL;
1833 ]) # LIBCFS_SRC_HAVE_PROC_OPS
1834 AC_DEFUN([LIBCFS_HAVE_PROC_OPS], [
1835 AC_MSG_CHECKING([if struct proc_ops exists])
1836 LB2_LINUX_TEST_RESULT([proc_ops], [
1837 AC_DEFINE(HAVE_PROC_OPS, 1,
1838 [struct proc_ops exists])
1840 ]) # LIBCFS_HAVE_PROC_OPS
1843 # LIBCFS_IP6_SET_PREF
1845 # kernel v5.8-rc1~165^2~71^2~3 commit 18d5ad62327576cbb1e5b9938a59d63ac0c15832
1846 # ipv6: add ip6_sock_set_addr_preferences
1848 AC_DEFUN([LIBCFS_SRC_IP6_SET_PREF], [
1849 LB2_LINUX_TEST_SRC([ip6_set_pref_test], [
1850 #include <net/ipv6.h>
1852 ip6_sock_set_addr_preferences(NULL, 0);
1855 AC_DEFUN([LIBCFS_IP6_SET_PREF], [
1856 AC_MSG_CHECKING([if ip6_sock_set_addr_preferences() exists])
1857 LB2_LINUX_TEST_RESULT([ip6_set_pref_test], [
1858 AC_DEFINE(HAVE_IP6_SET_PREF, 1,
1859 [if ip6_sock_set_addr_preferences exists])
1861 ]) # LIBCFS_IP6_SET_PREF
1864 # LIBCFS_VMALLOC_2ARGS
1866 # kernel v5.8-rc1~201^2~19
1867 # mm: remove the pgprot argument to __vmalloc
1868 AC_DEFUN([LIBCFS_SRC_VMALLOC_2ARGS], [
1869 LB2_LINUX_TEST_SRC([vmalloc_2args], [
1870 #include <linux/vmalloc.h>
1875 AC_DEFUN([LIBCFS_VMALLOC_2ARGS], [
1876 AC_MSG_CHECKING([if __vmalloc has 2 args])
1877 LB2_LINUX_TEST_RESULT([vmalloc_2args], [
1878 AC_DEFINE(HAVE_VMALLOC_2ARGS, 1,
1879 [__vmalloc only takes 2 args.])
1881 ]) # LIBCFS_VMALLOC_2ARGS
1884 # LIBCFS_HAVE_NR_UNSTABLE_NFS
1886 # kernel v5.8-rc1~201^2~75
1887 # mm/writeback: discard NR_UNSTABLE_NFS, use NR_WRITEBACK instead
1889 AC_DEFUN([LIBCFS_SRC_HAVE_NR_UNSTABLE_NFS], [
1890 LB2_LINUX_TEST_SRC([nr_unstable_nfs_exists], [
1891 #include <linux/mm.h>
1895 i = NR_UNSTABLE_NFS;
1898 AC_DEFUN([LIBCFS_HAVE_NR_UNSTABLE_NFS], [
1899 AC_MSG_CHECKING([if NR_UNSTABLE_NFS still in use])
1900 LB2_LINUX_TEST_RESULT([nr_unstable_nfs_exists], [
1901 AC_DEFINE(HAVE_NR_UNSTABLE_NFS, 1,
1902 [NR_UNSTABLE_NFS is still in use.])
1904 ]) # LIBCFS_HAVE_NR_UNSTABLE_NFS
1907 # LIBCFS_HAVE_MMAP_LOCK
1909 # kernel v5.8-rc1~83^2~24
1910 # mmap locking API: rename mmap_sem to mmap_lock
1912 AC_DEFUN([LIBCFS_SRC_HAVE_MMAP_LOCK], [
1913 LB2_LINUX_TEST_SRC([mmap_write_lock], [
1914 #include <linux/mm.h>
1916 mmap_write_lock(NULL);
1919 AC_DEFUN([LIBCFS_HAVE_MMAP_LOCK], [
1920 AC_MSG_CHECKING([if mmap_lock API is available])
1921 LB2_LINUX_TEST_RESULT([mmap_write_lock], [
1922 AC_DEFINE(HAVE_MMAP_LOCK, 1,
1923 [mmap_lock API is available.])
1925 ]) # LIBCFS_HAVE_MMAP_LOCK
1928 # LIBCFS_KERNEL_SETSOCKOPT
1930 # kernel v5.8-rc1~165^2~59^2
1931 # net: remove kernel_setsockopt
1932 AC_DEFUN([LIBCFS_SRC_KERNEL_SETSOCKOPT], [
1933 LB2_LINUX_TEST_SRC([kernel_setsockopt_exists], [
1934 #include <linux/net.h>
1936 kernel_setsockopt(NULL, 0, 0, NULL, 0);
1939 AC_DEFUN([LIBCFS_KERNEL_SETSOCKOPT], [
1940 AC_MSG_CHECKING([if kernel_setsockopt still in use])
1941 LB2_LINUX_TEST_RESULT([kernel_setsockopt_exists], [
1942 AC_DEFINE(HAVE_KERNEL_SETSOCKOPT, 1,
1943 [kernel_setsockopt still in use])
1945 ]) # LIBCFS_KERNEL_SETSOCKOPT
1948 # LIBCFS_SEC_RELEASE_SECCTX
1950 # kernel linux-hwe-5.8 (5.8.0-22.23~20.04.1)
1951 # LSM: Use lsmcontext in security_release_secctx
1952 AC_DEFUN([LIBCFS_SRC_SEC_RELEASE_SECCTX], [
1953 LB2_LINUX_TEST_SRC([security_release_secctx_1arg], [
1954 #include <linux/security.h>
1956 security_release_secctx(NULL);
1959 AC_DEFUN([LIBCFS_SEC_RELEASE_SECCTX], [
1960 AC_MSG_CHECKING([if security_release_secctx has 1 arg])
1961 LB2_LINUX_TEST_RESULT([security_release_secctx_1arg], [
1962 AC_DEFINE(HAVE_SEC_RELEASE_SECCTX_1ARG, 1,
1963 [security_release_secctx has 1 arg.])
1965 ]) # LIBCFS_SEC_RELEASE_SECCTX
1968 # LIBCFS_HAVE_KFREE_SENSITIVE
1970 # kernel v5.10-rc1~3
1971 # mm: remove kzfree() compatibility definition
1973 AC_DEFUN([LIBCFS_SRC_HAVE_KFREE_SENSITIVE], [
1974 LB2_LINUX_TEST_SRC([kfree_sensitive_exists], [
1975 #include <linux/slab.h>
1977 kfree_sensitive(NULL);
1980 AC_DEFUN([LIBCFS_HAVE_KFREE_SENSITIVE], [
1981 AC_MSG_CHECKING([if kfree_sensitive() is available])
1982 LB2_LINUX_TEST_RESULT([kfree_sensitive_exists], [
1983 AC_DEFINE(HAVE_KFREE_SENSITIVE, 1,
1984 [kfree_sensitive() is available.])
1986 ]) # LIBCFS_HAVE_KFREE_SENSITIVE
1989 # LIBCFS_HAVE_CRYPTO_SHA2_HEADER
1991 # Kernel v5.10-rc1-114-ga24d22b225ce
1992 # crypto: sha - split sha.h into sha1.h and sha2.h
1994 AC_DEFUN([LIBCFS_HAVE_CRYPTO_SHA2_HEADER], [
1995 LB_CHECK_LINUX_HEADER([crypto/sha2.h], [
1996 AC_DEFINE(HAVE_CRYPTO_SHA2_HEADER, 1,
1997 [crypto/sha2.h is present])])
1998 ]) # LIBCFS_HAVE_CRYPTO_SHA2_HEADER
2001 # LIBCFS_HAVE_LIST_CMP_FUNC_T
2003 # kernel 5.10.70 commit 4f0f586bf0c898233d8f316f471a21db2abd522d
2004 # treewide: Change list_sort to use const pointers
2005 AC_DEFUN([LIBCFS_SRC_HAVE_LIST_CMP_FUNC_T], [
2006 LB2_LINUX_TEST_SRC([list_cmp_func_t_exists], [
2007 #include <linux/list_sort.h>
2009 list_cmp_func_t cmp;
2013 AC_DEFUN([LIBCFS_HAVE_LIST_CMP_FUNC_T], [
2014 AC_MSG_CHECKING([if list_cmp_func_t type is defined])
2015 LB2_LINUX_TEST_RESULT([list_cmp_func_t_exists], [
2016 AC_DEFINE(HAVE_LIST_CMP_FUNC_T, 1,
2017 [list_cmp_func_t type is defined])
2019 ]) # LIBCFS_HAVE_LIST_CMP_FUNC_T
2022 # LIBCFS_NLA_STRLCPY
2024 # Kernel version 5.10-rc3 commit 872f690341948b502c93318f806d821c56772c42
2025 # replaced nla_strlcpy() with nla_strscpy().
2027 AC_DEFUN([LIBCFS_SRC_NLA_STRLCPY], [
2028 LB2_LINUX_TEST_SRC([nla_strlcpy], [
2029 #include <net/netlink.h>
2031 if (nla_strlcpy(NULL, NULL, 0) == 0)
2035 AC_DEFUN([LIBCFS_NLA_STRLCPY], [
2036 AC_MSG_CHECKING([if 'nla_strlcpy()' still exists])
2037 LB2_LINUX_TEST_RESULT([nla_strlcpy], [
2038 AC_DEFINE(HAVE_NLA_STRLCPY, 1,
2039 ['nla_strlcpy' is available])
2041 ]) # LIBCFS_NLA_STRLCPY
2044 # LIBCFS_LINUX_FORTIFY_STRING_HEADER
2046 # Linux v5.11-11104-ga28a6e860c6c
2047 # string.h: move fortified functions definitions in a dedicated header.
2049 AC_DEFUN([LIBCFS_SRC_LINUX_FORTIFY_STRING_HEADER],[
2050 LB2_LINUX_TEST_SRC([linux_fortify_string_header], [
2051 #include <linux/fortify-string.h>
2055 AC_DEFUN([LIBCFS_LINUX_FORTIFY_STRING_HEADER],[
2056 AC_MSG_CHECKING([Is linux/fortify-string.h header available])
2057 LB2_LINUX_TEST_RESULT([linux_fortify_string_header], [
2058 AC_DEFINE(HAVE_LINUX_FORTIFY_STRING_HEADER, 1,
2059 [linux/fortify-string.h header available])
2061 ]) # LIBCFS_LINUX_FORTIFY_STRING_HEADER
2064 # LIBCFS_HAVE_CIPHER_HEADER
2066 # Kernel 5.12 commit 0eb76ba29d16df2951d37c54ca279c4e5630b071
2067 # crypto: remove cipher routines from public crypto API
2069 AC_DEFUN([LIBCFS_HAVE_CIPHER_HEADER], [
2070 tmp_flags="$EXTRA_KCFLAGS"
2071 EXTRA_KCFLAGS="-Werror"
2072 LB_CHECK_LINUX_HEADER([crypto/internal/cipher.h], [
2073 AC_DEFINE(HAVE_CIPHER_H, 1,
2074 [crypto/internal/cipher.h is present])
2076 EXTRA_KCFLAGS="$tmp_flags"
2077 ]) # LIBCFS_HAVE_CIPHER_HEADER
2080 # LIBCFS_HAVE_TASK_RUNNING
2082 # Kernel 5.13-rc6 commit b03fbd4ff24c5f075e58eb19261d5f8b3e40d
2083 # introduced task_is_running() macro.
2085 AC_DEFUN([LIBCFS_SRC_HAVE_TASK_IS_RUNNING], [
2086 LB2_LINUX_TEST_SRC([task_is_running], [
2087 #include <linux/sched.h>
2089 if (task_is_running(current))
2093 AC_DEFUN([LIBCFS_HAVE_TASK_IS_RUNNING], [
2094 AC_MSG_CHECKING([if task_is_running() is defined])
2095 LB2_LINUX_TEST_RESULT([task_is_running], [
2096 AC_DEFINE(HAVE_TASK_IS_RUNNING, 1,
2097 [task_is_running() is defined])
2099 ]) # LIBCFS_HAVE_TASK_IS_RUNNING
2102 # LIBCFS_IOV_ITER_HAS_ITER_TYPE
2104 # kernel 5.13 commit 8cd54c1c848031a87820e58d772166ffdf8c08c0 change
2105 # ->type to ->iter_type
2107 AC_DEFUN([LIBCFS_SRC_IOV_ITER_HAS_ITER_TYPE], [
2108 LB2_LINUX_TEST_SRC([iov_iter_has_iter_type_member], [
2109 #include <linux/uio.h>
2111 struct iov_iter iter = { .iter_type = ITER_KVEC };
2116 AC_DEFUN([LIBCFS_IOV_ITER_HAS_ITER_TYPE], [
2117 AC_MSG_CHECKING([if iov_iter has member type])
2118 LB2_LINUX_TEST_RESULT([iov_iter_has_iter_type_member], [
2119 AC_DEFINE(HAVE_IOV_ITER_HAS_ITER_TYPE_MEMBER, 1,
2120 [if iov_iter has member iter_type])
2122 ]) # LIBCFS_IOV_ITER_HAS_ITER_TYPE
2125 # LIBCFS_LINUX_STDARG_HEADER
2127 # Kernel 5.14-rc5 commit c0891ac15f0428ffa81b2e818d416bdf3cb74ab6
2128 # isystem: ship and use stdarg.h
2130 AC_DEFUN([LIBCFS_LINUX_STDARG_HEADER], [
2131 tmp_flags="$EXTRA_KCFLAGS"
2132 EXTRA_KCFLAGS="-Werror"
2133 LB_CHECK_LINUX_HEADER([linux/stdarg.h], [
2134 AC_DEFINE(HAVE_LINUX_STDARG_HEADER, 1, [linux/stdarg.h is present])
2136 EXTRA_KCFLAGS="$tmp_flags"
2137 ]) # LIBCFS_LINUX_STDARG_HEADER
2140 # LIBCFS_HAVE_PANIC_NOTIFIER_HEADER
2142 # Kernel 5.14 commit f39650de687e35766572ac89dbcd16a5911e2f0a
2143 # kernel.h: split out panic and oops helpers
2145 AC_DEFUN([LIBCFS_HAVE_PANIC_NOTIFIER_HEADER], [
2146 tmp_flags="$EXTRA_KCFLAGS"
2147 EXTRA_KCFLAGS="-Werror"
2148 LB_CHECK_LINUX_HEADER([linux/panic_notifier.h], [
2149 AC_DEFINE(HAVE_PANIC_NOTIFIER_H, 1,
2150 [linux/panic_notifier.h is present])
2152 EXTRA_KCFLAGS="$tmp_flags"
2153 ]) # LIBCFS_HAVE_PANIC_NOTIFIER_HEADER
2156 # LIBCFS_PARAM_SET_UINT_MINMAX
2158 # Kernel 5.15-rc1 commit 2a14c9ae15a38148484a128b84bff7e9ffd90d68
2159 # moved param_set_uint_minmax to common code
2161 AC_DEFUN([LIBCFS_SRC_PARAM_SET_UINT_MINMAX],[
2162 LB2_LINUX_TEST_SRC([param_set_uint_minmax], [
2163 #include <linux/moduleparam.h>
2165 param_set_uint_minmax(NULL, NULL, 0, 0);
2168 AC_DEFUN([LIBCFS_PARAM_SET_UINT_MINMAX],[
2169 AC_MSG_CHECKING([does function 'param_set_uint_minmax' exist])
2170 LB2_LINUX_TEST_RESULT([param_set_uint_minmax], [
2171 AC_DEFINE(HAVE_PARAM_SET_UINT_MINMAX, 1,
2172 ['param_set_uint_minmax' is available])
2174 ]) # LIBCFS_PARAM_SET_UINT_MINMAX
2177 # LIBCFS_LINUX_BLK_INTEGRITY_HEADER
2179 # Kernel 5.15-rc6 commit fe45e630a1035aea94c29016f2598bbde149bbe3
2180 # block: move integrity handling out of <linux/blkdev.h>
2182 AC_DEFUN([LIBCFS_LINUX_BLK_INTEGRITY_HEADER], [
2183 tmp_flags="$EXTRA_KCFLAGS"
2184 EXTRA_KCFLAGS="-Werror"
2185 LB_CHECK_LINUX_HEADER([linux/blk-integrity.h], [
2186 AC_DEFINE(HAVE_LINUX_BLK_INTEGRITY_HEADER, 1,
2187 [linux/blk-integrity.h is present])
2189 EXTRA_KCFLAGS="$tmp_flags"
2190 ]) # LIBCFS_LINUX_BLK_INTEGRITY_HEADER
2193 # LIBCFS_PDE_DATA_EXISTS
2195 # Linux commit v5.16-11573-g6dfbbae14a7b
2196 # introduce pde_data()
2197 # Linux commit v5.16-11574-g359745d78351
2200 AC_DEFUN([LIBCFS_SRC_PDE_DATA_EXISTS],[
2201 LB2_LINUX_TEST_SRC([pde_data], [
2202 #include <linux/proc_fs.h>
2204 struct inode *inode = NULL;
2205 void *data =pde_data(inode);
2209 AC_DEFUN([LIBCFS_PDE_DATA_EXISTS],[
2210 AC_MSG_CHECKING([does function 'pde_data' exist])
2211 LB2_LINUX_TEST_RESULT([pde_data], [
2212 AC_DEFINE(HAVE_pde_data, 1, [function pde_data() available])
2214 AC_DEFINE(pde_data(inode), PDE_DATA(inode),
2215 [function pde_data() unavailable])
2217 ]) # LIBCFS_PDE_DATA_EXISTS
2220 # LIBCFS_BIO_ALLOC_WITH_BDEV
2222 # Linux commit v5.17-rc2-21-g07888c665b40
2223 # block: pass a block_device and opf to bio_alloc
2225 AC_DEFUN([LIBCFS_SRC_BIO_ALLOC_WITH_BDEV],[
2226 LB2_LINUX_TEST_SRC([bio_alloc_with_bdev], [
2227 #include <linux/bio.h>
2229 struct block_device *bdev = NULL;
2230 unsigned short nr_vecs = 1;
2231 gfp_t gfp = GFP_KERNEL;
2232 struct bio *bio = bio_alloc(bdev, nr_vecs, REQ_OP_WRITE, gfp);
2236 AC_DEFUN([LIBCFS_BIO_ALLOC_WITH_BDEV],[
2237 AC_MSG_CHECKING([does bio_alloc() takes a struct block_device])
2238 LB2_LINUX_TEST_RESULT([bio_alloc_with_bdev], [
2239 AC_DEFINE(HAVE_BIO_ALLOC_WITH_BDEV, 1,
2240 [bio_alloc() takes a struct block_device])
2242 ]) # LIBCFS_BIO_ALLOC_WITH_BDEV
2245 dnl # Generate and compile all of the kernel API test cases to determine
2246 dnl # which interfaces are available. By invoking the kernel build system
2247 dnl # only once the compilation can be done in parallel significantly
2248 dnl # speeding up the process.
2250 AC_DEFUN([LIBCFS_PROG_LINUX_SRC], [
2252 LIBCFS_SRC_KTIME_GET_TS64
2254 LIBCFS_SRC_PREPARE_TO_WAIT_EVENT
2255 LIBCFS_SRC_KERNEL_PARAM_OPS
2256 LIBCFS_SRC_KTIME_ADD
2257 LIBCFS_SRC_KTIME_AFTER
2258 LIBCFS_SRC_KTIME_BEFORE
2259 LIBCFS_SRC_KTIME_COMPARE
2260 LIBCFS_SRC_SHRINKER_COUNT
2262 LIBCFS_SRC_MATCH_WILDCARD
2264 LIBCFS_SRC_HAVE_MAPPING_AS_EXITING_FLAG
2266 LIBCFS_SRC_IOV_ITER_HAS_TYPE
2268 LIBCFS_SRC_HAVE_GLOB
2270 LIBCFS_SRC_HLIST_ADD_AFTER
2271 LIBCFS_SRC_TIMESPEC64
2272 LIBCFS_SRC_KTIME_GET_NS
2273 LIBCFS_SRC_KTIME_GET_REAL_TS64
2274 LIBCFS_SRC_KTIME_GET_REAL_SECONDS
2275 LIBCFS_SRC_KTIME_GET_REAL_NS
2276 LIBCFS_SRC_KTIME_TO_TIMESPEC64
2277 LIBCFS_SRC_TIMESPEC64_SUB
2278 LIBCFS_SRC_TIMESPEC64_TO_KTIME
2280 LIBCFS_SRC_KTIME_GET_SECONDS
2281 LIBCFS_SRC_WAIT_WOKEN
2283 LIBCFS_SRC_KTIME_MS_DELTA
2285 LIBCFS_SRC_KERNEL_PARAM_LOCK
2287 LIBCFS_SRC_HAVE_TOPOLOGY_SIBLING_CPUMASK
2289 LIBCFS_SRC_KSTRTOBOOL_FROM_USER
2290 LIBCFS_SRC_NETLINK_CALLBACK_START
2292 LIBCFS_SRC_CRYPTO_HASH_HELPERS
2293 LIBCFS_SRC_RHASHTABLE_REPLACE
2295 LIBCFS_SRC_BROKEN_HASH_64
2296 LIBCFS_SRC_STACKTRACE_OPS_ADDRESS_RETURN_INT
2297 LIBCFS_SRC_GET_USER_PAGES_6ARG
2299 LIBCFS_SRC_RHASHTABLE_INSERT_FAST
2300 LIBCFS_SRC_RHASHTABLE_WALK_INIT_3ARG
2302 LIBCFS_SRC_RHASHTABLE_LOOKUP
2304 LIBCFS_SRC_STACKTRACE_OPS
2306 LIBCFS_SRC_GET_USER_PAGES_GUP_FLAGS
2307 LIBCFS_SRC_RHASHTABLE_WALK_ENTER
2309 LIBCFS_SRC_HOTPLUG_STATE_MACHINE
2311 LIBCFS_SRC_NL_EXT_ACK
2312 LIBCFS_SRC_RHASHTABLE_LOOKUP_GET_INSERT_FAST
2313 LIBCFS_SRC_KREF_READ
2314 LIBCFS_SRC_RHT_BUCKET_VAR
2316 LIBCFS_SRC_CPUS_READ_LOCK
2318 LIBCFS_SRC_WAIT_QUEUE_TASK_LIST_RENAME
2319 LIBCFS_SRC_WAIT_BIT_QUEUE_ENTRY_EXISTS
2320 LIBCFS_SRC_MEMALLOC_NORECLAIM
2322 LIBCFS_SRC_NLA_STRDUP
2323 LIBCFS_SRC_WAIT_QUEUE_ENTRY
2325 LIBCFS_SRC_DEFINE_TIMER
2326 LIBCFS_SRC_NEW_KERNEL_WRITE
2327 LIBCFS_SRC_NEW_KERNEL_READ
2329 LIBCFS_SRC_LOCKDEP_IS_HELD
2330 LIBCFS_SRC_TIMER_SETUP
2332 LIBCFS_SRC_HAVE_NS_TO_TIMESPEC64
2333 LIBCFS_SRC_WAIT_VAR_EVENT
2335 LIBCFS_SRC_BITMAP_ALLOC
2336 LIBCFS_SRC_CLEAR_AND_WAKE_UP_BIT
2338 LIBCFS_SRC_TCP_SOCK_SET_NODELAY
2339 LIBCFS_SRC_TCP_SOCK_SET_KEEPIDLE
2341 LIBCFS_SRC_XARRAY_SUPPORT
2342 LIBCFS_SRC_NL_DUMP_EXT_ACK
2344 LIBCFS_SRC_HAVE_IOV_ITER_TYPE
2346 LIBCFS_SRC_MM_TOTALRAM_PAGES_FUNC
2347 LIBCFS_SRC_GET_REQUEST_KEY_AUTH
2349 LIBCFS_SRC_KOBJ_TYPE_DEFAULT_GROUPS
2351 LIBCFS_SRC_LOOKUP_USER_KEY
2352 LIBCFS_SRC_FORCE_SIG_WITH_TASK
2353 LIBCFS_SRC_CACHE_DETAIL_WRITERS
2355 LIBCFS_SRC_GENL_DUMPIT_INFO
2357 LIBCFS_SRC_HAVE_PROC_OPS
2359 LIBCFS_SRC_TCP_SOCK_SET_QUICKACK
2360 LIBCFS_SRC_TCP_SOCK_SET_KEEPINTVL
2361 LIBCFS_SRC_TCP_SOCK_SET_KEEPCNT
2363 LIBCFS_SRC_HAVE_NR_UNSTABLE_NFS
2364 LIBCFS_SRC_HAVE_MMAP_LOCK
2365 LIBCFS_SRC_KERNEL_SETSOCKOPT
2366 LIBCFS_SRC_IP6_SET_PREF
2367 LIBCFS_SRC_VMALLOC_2ARGS
2369 LIBCFS_SRC_SEC_RELEASE_SECCTX
2370 LIBCFS_SRC_HAVE_KFREE_SENSITIVE
2371 LIBCFS_SRC_HAVE_LIST_CMP_FUNC_T
2372 LIBCFS_SRC_NLA_STRLCPY
2374 LIBCFS_SRC_LINUX_FORTIFY_STRING_HEADER
2376 LIBCFS_SRC_HAVE_TASK_IS_RUNNING
2377 LIBCFS_SRC_IOV_ITER_HAS_ITER_TYPE
2379 LIBCFS_SRC_PARAM_SET_UINT_MINMAX
2381 LIBCFS_SRC_PDE_DATA_EXISTS
2382 LIBCFS_SRC_BIO_ALLOC_WITH_BDEV
2384 LB2_LINUX_TEST_COMPILE_ALL([libcfs],
2385 [for available kernel interfaces to libcfs])
2389 dnl # Check results of kernel interface tests.
2391 AC_DEFUN([LIBCFS_PROG_LINUX_RESULTS], [
2393 LIBCFS_KTIME_GET_TS64
2395 LIBCFS_PREPARE_TO_WAIT_EVENT
2396 LIBCFS_KERNEL_PARAM_OPS
2400 LIBCFS_KTIME_COMPARE
2401 LIBCFS_SHRINKER_COUNT
2403 LIBCFS_MATCH_WILDCARD
2405 LIBCFS_HAVE_MAPPING_AS_EXITING_FLAG
2407 LIBCFS_IOV_ITER_HAS_TYPE
2411 LIBCFS_HLIST_ADD_AFTER
2414 LIBCFS_KTIME_GET_REAL_TS64
2415 LIBCFS_KTIME_GET_REAL_SECONDS
2416 LIBCFS_KTIME_GET_REAL_NS
2417 LIBCFS_KTIME_TO_TIMESPEC64
2418 LIBCFS_TIMESPEC64_SUB
2419 LIBCFS_TIMESPEC64_TO_KTIME
2421 LIBCFS_KTIME_GET_SECONDS
2424 LIBCFS_KTIME_MS_DELTA
2426 LIBCFS_KERNEL_PARAM_LOCK
2428 LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK
2430 LIBCFS_KSTRTOBOOL_FROM_USER
2431 LIBCFS_NETLINK_CALLBACK_START
2433 LIBCFS_CRYPTO_HASH_HELPERS
2434 LIBCFS_RHASHTABLE_REPLACE
2436 LIBCFS_BROKEN_HASH_64
2437 LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT
2438 LIBCFS_GET_USER_PAGES_6ARG
2440 LIBCFS_RHASHTABLE_INSERT_FAST
2441 LIBCFS_RHASHTABLE_WALK_INIT_3ARG
2443 LIBCFS_RHASHTABLE_LOOKUP
2445 LIBCFS_STACKTRACE_OPS
2447 LIBCFS_GET_USER_PAGES_GUP_FLAGS
2448 LIBCFS_RHASHTABLE_WALK_ENTER
2450 LIBCFS_HOTPLUG_STATE_MACHINE
2453 LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST
2455 LIBCFS_RHT_BUCKET_VAR
2457 LIBCFS_CPUS_READ_LOCK
2459 LIBCFS_WAIT_QUEUE_TASK_LIST_RENAME
2460 LIBCFS_WAIT_BIT_QUEUE_ENTRY_EXISTS
2461 LIBCFS_MEMALLOC_NORECLAIM
2464 LIBCFS_WAIT_QUEUE_ENTRY
2467 LIBCFS_NEW_KERNEL_WRITE
2468 LIBCFS_NEW_KERNEL_READ
2470 LIBCFS_LOCKDEP_IS_HELD
2473 LIBCFS_HAVE_NS_TO_TIMESPEC64
2474 LIBCFS_WAIT_VAR_EVENT
2477 LIBCFS_CLEAR_AND_WAKE_UP_BIT
2479 LIBCFS_TCP_SOCK_SET_NODELAY
2480 LIBCFS_TCP_SOCK_SET_KEEPIDLE
2482 LIBCFS_XARRAY_SUPPORT
2483 LIBCFS_NL_DUMP_EXT_ACK
2485 LIBCFS_HAVE_IOV_ITER_TYPE
2487 LIBCFS_MM_TOTALRAM_PAGES_FUNC
2488 LIBCFS_GET_REQUEST_KEY_AUTH
2490 LIBCFS_KOBJ_TYPE_DEFAULT_GROUPS
2492 LIBCFS_LOOKUP_USER_KEY
2493 LIBCFS_FORCE_SIG_WITH_TASK
2494 LIBCFS_CACHE_DETAIL_WRITERS
2496 LIBCFS_GENL_DUMPIT_INFO
2498 LIBCFS_HAVE_PROC_OPS
2500 LIBCFS_TCP_SOCK_SET_QUICKACK
2501 LIBCFS_TCP_SOCK_SET_KEEPINTVL
2502 LIBCFS_TCP_SOCK_SET_KEEPCNT
2504 LIBCFS_HAVE_NR_UNSTABLE_NFS
2505 LIBCFS_HAVE_MMAP_LOCK
2506 LIBCFS_KERNEL_SETSOCKOPT
2508 LIBCFS_VMALLOC_2ARGS
2510 LIBCFS_SEC_RELEASE_SECCTX
2511 LIBCFS_HAVE_KFREE_SENSITIVE
2512 LIBCFS_HAVE_LIST_CMP_FUNC_T
2515 LIBCFS_LINUX_FORTIFY_STRING_HEADER
2517 LIBCFS_HAVE_TASK_IS_RUNNING
2518 LIBCFS_IOV_ITER_HAS_ITER_TYPE
2520 LIBCFS_PARAM_SET_UINT_MINMAX
2522 LIBCFS_PDE_DATA_EXISTS
2523 LIBCFS_BIO_ALLOC_WITH_BDEV
2529 # LibCFS linux kernel checks
2531 AC_DEFUN([LIBCFS_PROG_LINUX], [
2532 AC_MSG_NOTICE([LibCFS kernel checks
2533 ==============================================================================])
2534 LIBCFS_CONFIG_PANIC_DUMPLOG
2536 # 4.6 - Header Check
2538 # 4.6 - Export Check
2539 LIBCFS_EXPORT_KSET_FIND_OBJ
2540 # 4.10 - Header Check
2542 # 4.11 - Header Check
2543 LIBCFS_SCHED_HEADERS
2544 # 4.13 - Header Checks
2545 LIBCFS_HAVE_PROCESSOR_HEADER
2546 LIBCFS_HAVE_WAIT_BIT_HEADER
2547 # 4.13 - Export Check
2548 LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK
2549 # 5.0 - Header Check
2551 # 5.7 - Export Check and Header Check
2552 LIBCFS_KALLSYMS_LOOKUP
2553 LIBCFS_HAVE_CRYPTO_SHA2_HEADER
2554 # 5.12 - Header Check
2555 LIBCFS_HAVE_CIPHER_HEADER
2556 # 5.14 - Header Checks
2557 LIBCFS_LINUX_STDARG_HEADER
2558 LIBCFS_HAVE_PANIC_NOTIFIER_HEADER
2559 # 5.15 - Header Check
2560 LIBCFS_LINUX_BLK_INTEGRITY_HEADER
2561 ]) # LIBCFS_PROG_LINUX
2564 # LIBCFS_PATH_DEFAULTS
2566 # default paths for installed files
2568 AC_DEFUN([LIBCFS_PATH_DEFAULTS], [
2569 ]) # LIBCFS_PATH_DEFAULTS
2574 # other configure checks
2576 AC_DEFUN([LIBCFS_CONFIGURE], [
2577 AC_MSG_NOTICE([LibCFS core checks
2578 ==============================================================================])
2580 # libcfs/libcfs/util/nidstrings.c
2581 AC_CHECK_HEADERS([netdb.h asm/types.h endian.h])
2582 AC_CHECK_FUNCS([gethostbyname])
2584 # -------- Check for required packages --------------
2586 AC_MSG_NOTICE([LibCFS required packages checks
2587 ==============================================================================])
2589 AC_MSG_CHECKING([whether to enable readline support])
2590 AC_ARG_ENABLE(readline,
2591 AS_HELP_STRING([--disable-readline],
2592 [disable readline support]),
2593 [], [enable_readline="yes"])
2594 AC_MSG_RESULT([$enable_readline])
2597 AS_IF([test "x$enable_readline" = xyes], [
2598 AC_CHECK_LIB([readline], [readline], [
2599 LIBREADLINE="-lreadline"
2600 AC_DEFINE(HAVE_LIBREADLINE, 1,
2601 [readline library is available])
2604 AC_SUBST(LIBREADLINE)
2606 AC_MSG_CHECKING([whether to use libpthread for libcfs library])
2607 AC_ARG_ENABLE([libpthread],
2608 AS_HELP_STRING([--disable-libpthread],
2609 [disable libpthread]),
2610 [], [enable_libpthread="yes"])
2611 AC_MSG_RESULT([$enable_libpthread])
2614 AS_IF([test "x$enable_libpthread" = xyes], [
2615 AC_CHECK_LIB([pthread], [pthread_create], [
2616 PTHREAD_LIBS="-lpthread"
2617 AC_DEFINE([HAVE_LIBPTHREAD], 1,
2618 [use libpthread for libcfs library])
2621 AC_MSG_WARN([Using libpthread for libcfs library is disabled explicitly])
2623 AC_SUBST(PTHREAD_LIBS)
2624 ]) # LIBCFS_CONFIGURE
2627 # LIBCFS_CONFIG_FILES
2629 # files that should be generated with AC_OUTPUT
2631 AC_DEFUN([LIBCFS_CONFIG_FILES], [
2635 libcfs/autoconf/Makefile
2636 libcfs/include/Makefile
2637 libcfs/include/libcfs/Makefile
2638 libcfs/include/uapi/Makefile
2639 libcfs/include/libcfs/linux/Makefile
2640 libcfs/include/libcfs/util/Makefile
2641 libcfs/include/libcfs/crypto/Makefile
2642 libcfs/include/uapi/linux/Makefile
2643 libcfs/libcfs/Makefile
2644 libcfs/libcfs/autoMakefile
2645 libcfs/libcfs/linux/Makefile
2646 libcfs/libcfs/util/Makefile
2647 libcfs/libcfs/crypto/Makefile
2649 ]) # LIBCFS_CONFIG_FILES