4 # Wrapper for AC_CONFIG_SUBDIR
6 AC_DEFUN([LC_CONFIG_SRCDIR], [
7 AC_CONFIG_SRCDIR([lustre/obdclass/obdo.c])
14 # lustre specific paths
16 AC_DEFUN([LC_PATH_DEFAULTS], [
17 # ptlrpc kernel build requires this
25 demodir='$(docdir)/demo'
28 pkgexampledir='${pkgdatadir}/examples'
29 AC_SUBST(pkgexampledir)
35 # is the target os supported?
37 AC_DEFUN([LC_TARGET_SUPPORTED], [
46 ]) # LC_TARGET_SUPPORTED
49 # LC_GLIBC_SUPPORT_FHANDLES
51 AC_DEFUN([LC_GLIBC_SUPPORT_FHANDLES], [
52 AC_CHECK_FUNCS([name_to_handle_at],
53 [AC_DEFINE(HAVE_FHANDLE_GLIBC_SUPPORT, 1,
54 [file handle and related syscalls are supported])],
55 [AC_MSG_WARN([file handle and related syscalls are not supported])])
56 ]) # LC_GLIBC_SUPPORT_FHANDLES
59 # LC_GLIBC_SUPPORT_COPY_FILE_RANGE
61 AC_DEFUN([LC_GLIBC_SUPPORT_COPY_FILE_RANGE], [
62 AC_CHECK_FUNCS([copy_file_range],
63 [AC_DEFINE(HAVE_COPY_FILE_RANGE, 1,
64 [copy_file_range() is supported])],
65 [AC_MSG_WARN([copy_file_range() is not supported])])
66 ]) # LC_GLIBC_SUPPORT_COPY_FILE_RANGE
71 AC_DEFUN([LC_FID2PATH_ANON_UNION], [
74 AC_MSG_CHECKING([if 'struct getinfo_fid2path' has anonymous union])
75 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
76 #include <linux/lustre/lustre_idl.h>
79 struct getinfo_fid2path gf;
80 struct lu_fid root_fid;
82 *gf.gf_root_fid = root_fid;
86 AC_DEFINE(HAVE_FID2PATH_ANON_UNIONS, 1, [union is unnamed])
92 ]) # LC_FID2PATH_ANON_UNION
97 # Ensure the stack size is at least 8k in Lustre server (all kernels)
99 AC_DEFUN([LC_SRC_STACK_SIZE], [
100 LB2_LINUX_TEST_SRC([stack_size_8k], [
101 #include <linux/thread_info.h>
103 #if THREAD_SIZE < 8192
104 #error "stack size < 8192"
108 AC_DEFUN([LC_STACK_SIZE], [
109 AC_MSG_CHECKING([if stack size is at least 8k])
110 LB2_LINUX_TEST_RESULT([stack_size_8k], [],[
112 [Lustre requires that Linux is configured with at least a 8KB stack.])
119 # Allow the user to set the MDS thread upper limit
121 AC_DEFUN([LC_MDS_MAX_THREADS], [
122 AC_MSG_CHECKING([for maximum number of MDS threads])
123 AC_ARG_WITH([mds_max_threads],
124 AS_HELP_STRING([--with-mds-max-threads=count],
125 [maximum threads available on the MDS: (default=512)]),
126 [AC_DEFINE_UNQUOTED(MDS_MAX_THREADS, $with_mds_max_threads,
127 [maximum number of MDS threads])])
128 AC_MSG_RESULT([$with_mds_max_threads])
129 ]) # LC_MDS_MAX_THREADS
134 # the pinger is temporary, until we have the recovery node in place
136 AC_DEFUN([LC_CONFIG_PINGER], [
137 AC_MSG_CHECKING([whether to enable Lustre pinger support])
138 AC_ARG_ENABLE([pinger],
139 AS_HELP_STRING([--disable-pinger],
140 [disable recovery pinger support]),
141 [], [enable_pinger="yes"])
142 AC_MSG_RESULT([$enable_pinger])
143 AS_IF([test "x$enable_pinger" != xno], [
144 AC_DEFINE(CONFIG_LUSTRE_FS_PINGER, 1, [Use the Pinger])
145 AC_SUBST(ENABLE_PINGER, yes)
147 AC_SUBST(ENABLE_PINGER, no)
149 ]) # LC_CONFIG_PINGER
154 # do checksum of bulk data between client and OST
156 AC_DEFUN([LC_CONFIG_CHECKSUM], [
157 AC_MSG_CHECKING([whether to enable data checksum support])
158 AC_ARG_ENABLE([checksum],
159 AS_HELP_STRING([--disable-checksum],
160 [disable data checksum support]),
161 [], [enable_checksum="yes"])
162 AC_MSG_RESULT([$enable_checksum])
163 AS_IF([test "x$enable_checksum" != xno], [
164 AC_DEFINE(CONFIG_ENABLE_CHECKSUM, 1, [do data checksums])
165 AC_SUBST(ENABLE_CHECKSUM, yes)
167 AC_SUBST(ENABLE_CHECKSUM, no)
169 ]) # LC_CONFIG_CHECKSUM
174 # enable distributed flock by default
176 AC_DEFUN([LC_CONFIG_FLOCK], [
177 AC_MSG_CHECKING([whether to enable flock by default])
178 AC_ARG_ENABLE([flock],
179 AS_HELP_STRING([--disable-flock],
180 [disable flock by default]),
181 [], [enable_flock="yes"])
182 AC_MSG_RESULT([$enable_flock])
183 AS_IF([test "x$enable_flock" != xno], [
184 AC_DEFINE(CONFIG_ENABLE_FLOCK, 1, [enable flock by default])
185 AC_SUBST(ENABLE_FLOCK, yes)
187 AC_SUBST(ENABLE_FLOCK, no)
192 # LC_CONFIG_HEALTH_CHECK_WRITE
194 # Turn off the actual write to the disk
196 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE], [
197 AC_MSG_CHECKING([whether to enable a write with the health check])
198 AC_ARG_ENABLE([health_write],
199 AS_HELP_STRING([--enable-health_write],
200 [enable disk writes when doing health check]),
201 [], [enable_health_write="no"])
202 AC_MSG_RESULT([$enable_health_write])
203 AS_IF([test "x$enable_health_write" != xno], [
204 AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, [Write when Checking Health])
205 AC_SUBST(ENABLE_HEALTH_WRITE, yes)
207 AC_SUBST(ENABLE_HEALTH_WRITE, no)
209 ]) # LC_CONFIG_HEALTH_CHECK_WRITE
212 # LC_CONFIG_LRU_RESIZE
214 AC_DEFUN([LC_CONFIG_LRU_RESIZE], [
215 AC_MSG_CHECKING([whether to enable lru self-adjusting])
216 AC_ARG_ENABLE([lru_resize],
217 AS_HELP_STRING([--enable-lru-resize],
218 [enable lru resize support]),
219 [], [enable_lru_resize="yes"])
220 AC_MSG_RESULT([$enable_lru_resize])
221 AS_IF([test "x$enable_lru_resize" != xno], [
222 AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
223 AC_SUBST(ENABLE_LRU_RESIZE, yes)
225 AC_SUBST(ENABLE_LRU_RESIZE, no)
227 ]) # LC_CONFIG_LRU_RESIZE
232 # Quota support. The kernel must support CONFIG_QUOTA.
234 AC_DEFUN([LC_SRC_CONFIG_QUOTA], [
235 LB2_SRC_CHECK_CONFIG_IM([QUOTA])
237 AC_DEFUN([LC_CONFIG_QUOTA], [
238 LB2_TEST_CHECK_CONFIG_IM([QUOTA],[],[AC_MSG_ERROR(
239 [Lustre quota requires that CONFIG_QUOTA is enabled in your kernel.])])
245 # fhandle kernel support for open_by_handle_at() and name_to_handle_at()
246 # system calls. The kernel must support CONFIG_FHANDLE.
248 AC_DEFUN([LC_SRC_CONFIG_FHANDLE], [
249 LB2_SRC_CHECK_CONFIG_IM([FHANDLE])
251 AC_DEFUN([LC_CONFIG_FHANDLE], [
252 LB2_TEST_CHECK_CONFIG_IM([FHANDLE],[],[AC_MSG_ERROR(
253 [Lustre fid handling requires that CONFIG_FHANDLE is enabled in your kernel.])])
254 ]) # LC_CONFIG_FHANDLE
257 # LC_POSIX_ACL_CONFIG
261 AC_DEFUN([LC_SRC_POSIX_ACL_CONFIG], [
262 LB2_SRC_CHECK_CONFIG_IM([FS_POSIX_ACL])
264 AC_DEFUN([LC_POSIX_ACL_CONFIG], [
265 LB2_TEST_CHECK_CONFIG_IM([FS_POSIX_ACL],
266 [AC_DEFINE(CONFIG_LUSTRE_FS_POSIX_ACL, 1, [Enable POSIX acl])],
268 ]) # LC_POSIX_ACL_CONFIG
270 # CRYPTO_MD5 check and warn only if GSS is not disabled.
273 # LC_CONFIG_GSS_KEYRING
275 # default 'auto', tests for dependencies, if found, enables;
276 # only called if gss is enabled
278 AC_DEFUN([LC_CONFIG_GSS_KEYRING], [
279 AC_MSG_CHECKING([whether to enable gss keyring backend])
280 AC_ARG_ENABLE([gss_keyring],
281 [AS_HELP_STRING([--disable-gss-keyring],
282 [disable gss keyring backend])],
283 [], [AS_IF([test "x$enable_gss" != xno], [
284 enable_gss_keyring="yes"], [
285 enable_gss_keyring="auto"])])
286 AC_MSG_RESULT([$enable_gss_keyring])
287 AS_IF([test "x$enable_gss_keyring" != xno], [
288 LB_CHECK_CONFIG_IM([KEYS], [], [
289 gss_keyring_conf_test="fail"
290 AC_MSG_WARN([GSS keyring backend requires that CONFIG_KEYS be enabled in your kernel.])])
292 AC_CHECK_LIB([keyutils], [keyctl_search], [], [
293 gss_keyring_conf_test="fail"
294 AC_MSG_WARN([GSS keyring backend requires libkeyutils])])
296 AS_IF([test "x$gss_keyring_conf_test" != xfail], [
297 AC_DEFINE([HAVE_GSS_KEYRING], [1],
298 [Define this if you enable gss keyring backend])
299 enable_gss_keyring="yes"
301 AS_IF([test "x$enable_gss_keyring" = xyes], [
302 AC_MSG_ERROR([Cannot enable gss_keyring. See above for details.])
309 ]) # LC_CONFIG_GSS_KEYRING
312 # LC_KEY_TYPE_INSTANTIATE_2ARGS
314 # rhel7 key_type->instantiate takes 2 args (struct key, struct key_preparsed_payload)
316 AC_DEFUN([LC_SRC_KEY_TYPE_INSTANTIATE_2ARGS], [
317 LB2_LINUX_TEST_SRC([key_type_instantiate_2args], [
318 #include <linux/key-type.h>
320 ((struct key_type *)0)->instantiate(0, NULL);
323 AC_DEFUN([LC_KEY_TYPE_INSTANTIATE_2ARGS], [
324 AC_MSG_CHECKING([if 'key_type->instantiate' has two args])
325 LB2_LINUX_TEST_RESULT([key_type_instantiate_2args], [
326 AC_DEFINE(HAVE_KEY_TYPE_INSTANTIATE_2ARGS, 1,
327 [key_type->instantiate has two args])
329 ]) # LC_KEY_TYPE_INSTANTIATE_2ARGS
334 AC_DEFUN([LC_CONFIG_SUNRPC], [
335 LB_CHECK_CONFIG_IM([SUNRPC], [], [
336 AS_IF([test "x$sunrpc_required" = xyes], [
339 kernel SUNRPC support is required by using GSS.
342 ]) # LC_CONFIG_SUNRPC
345 # LC_CONFIG_GSS (default 'auto' (tests for dependencies, if found, enables))
347 # Build gss and related tools of Lustre. Currently both kernel and user space
348 # parts are depend on linux platform.
350 AC_DEFUN([LC_CONFIG_GSS], [
351 AC_MSG_CHECKING([whether to enable gss support])
353 [AS_HELP_STRING([--enable-gss], [enable gss support])],
354 [], [enable_gss="auto"])
355 AC_MSG_RESULT([$enable_gss])
357 AC_ARG_VAR([TEST_JOBS],
358 [simultaneous jobs during configure (defaults to $(nproc))])
359 if test "x$ac_cv_env_TEST_JOBS_set" != "xset"; then
360 TEST_JOBS=${TEST_JOBS:-$(nproc)}
364 AC_ARG_VAR([TEST_DIR],
365 [location of temporary parallel configure tests (defaults to $PWD/lb2)])
366 TEST_DIR=${TEST_DIR:-${ac_pwd}/_lpb}
369 AS_IF([test "x$enable_gss" != xno], [
370 LC_CONFIG_GSS_KEYRING
372 sunrpc_required=$enable_gss
376 require_krb5=$enable_gss
380 AS_IF([test -n "$KRBDIR"], [
381 gss_conf_test="success"
383 gss_conf_test="failure"
386 AS_IF([test "x$gss_conf_test" = xsuccess && test "x$enable_gss" != xno], [
387 AC_DEFINE([HAVE_GSS], [1], [Define this is if you enable gss])
390 enable_gss_keyring="no"
394 AS_IF([test "x$enable_ssk" != xno], [
395 enable_ssk=$enable_gss
398 enable_gss_keyring="no"
404 # OpenSSL 1.0+ return int for HMAC functions but older SLES11 versions do not
405 AC_DEFUN([LC_OPENSSL_HMAC], [
406 has_hmac_functions="no"
407 saved_flags="$CFLAGS"
409 AC_MSG_CHECKING([whether OpenSSL has HMAC_Init_ex])
410 AS_IF([test "x$enable_ssk" != xno], [
411 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
412 #include <openssl/hmac.h>
413 #include <openssl/evp.h>
417 rc = HMAC_Init_ex(NULL, "test", 4, EVP_md_null(), NULL);
421 has_hmac_functions="yes"
424 AC_MSG_RESULT([$has_hmac_functions])
425 CFLAGS="$saved_flags"
428 # LC_OPENSSL_EVP_PKEY
430 # OpenSSL 3.0 introduces EVP_PKEY_get_params
431 AC_DEFUN([LC_OPENSSL_EVP_PKEY], [
433 saved_flags="$CFLAGS"
435 AC_MSG_CHECKING([whether OpenSSL has EVP_PKEY_get_params])
436 AS_IF([test "x$enable_ssk" != xno], [
437 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
438 #include <openssl/evp.h>
443 int rc = EVP_PKEY_get_params(NULL, params);
447 AC_DEFINE(HAVE_OPENSSL_EVP_PKEY, 1, [OpenSSL EVP_PKEY_get_params])
451 CFLAGS="$saved_flags"
452 AC_MSG_RESULT([$has_evp_pkey])
453 ]) # LC_OPENSSL_EVP_PKEY
458 # Check whether to enable Lustre client crypto
460 AC_DEFUN([LC_OPENSSL_SSK], [
461 AC_MSG_CHECKING([whether OpenSSL has functions needed for SSK])
462 AS_IF([test "x$enable_ssk" != xno], [
468 AS_IF([test "x$has_hmac_functions" = xyes -o "x$has_evp_pkey" = xyes], [
469 AC_DEFINE(HAVE_OPENSSL_SSK, 1, [OpenSSL HMAC functions needed for SSK])
473 AC_MSG_RESULT([$enable_ssk])
476 # LC_OPENSSL_GETSEPOL
478 # OpenSSL is needed for l_getsepol
479 AC_DEFUN([LC_OPENSSL_GETSEPOL], [
480 saved_flags="$CFLAGS"
482 AC_MSG_CHECKING([whether openssl-devel is present])
483 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
484 #include <openssl/evp.h>
487 EVP_MD_CTX *mdctx = EVP_MD_CTX_create();
491 AC_DEFINE(HAVE_OPENSSL_GETSEPOL, 1, [openssl-devel is present])
492 enable_getsepol="yes"
498 No openssl-devel headers found, unable to build l_getsepol and SELinux status checking
501 AC_MSG_RESULT([$enable_getsepol])
502 CFLAGS="$saved_flags"
503 ]) # LC_OPENSSL_GETSEPOL
506 AC_DEFUN([LC_HAVE_LIBAIO], [
507 AC_CHECK_HEADER([libaio.h],
509 AC_MSG_WARN([libaio is not installed on the system]))
513 # LC_INVALIDATE_RANGE
515 # 3.11 invalidatepage requires the length of the range to invalidate
517 AC_DEFUN([LC_SRC_INVALIDATE_RANGE], [
518 LB2_LINUX_TEST_SRC([address_space_ops_invalidatepage_3args], [
519 #include <linux/fs.h>
521 struct address_space_operations a_ops;
522 a_ops.invalidatepage(NULL, 0, 0);
525 AC_DEFUN([LC_INVALIDATE_RANGE], [
527 [if 'address_space_operations.invalidatepage' requires 3 arguments])
528 LB2_LINUX_TEST_RESULT([address_space_ops_invalidatepage_3args], [
529 AC_DEFINE(HAVE_INVALIDATE_RANGE, 1,
530 [address_space_operations.invalidatepage needs 3 arguments])
532 ]) # LC_INVALIDATE_RANGE
535 # LC_HAVE_DIR_CONTEXT
537 # 3.11 readdir now takes the new struct dir_context
539 AC_DEFUN([LC_SRC_HAVE_DIR_CONTEXT], [
540 LB2_LINUX_TEST_SRC([dir_context], [
541 #include <linux/fs.h>
543 #ifdef FMODE_KABI_ITERATE
544 #error "back to use readdir in kabi_extand mode"
546 struct dir_context ctx;
552 AC_DEFUN([LC_HAVE_DIR_CONTEXT], [
553 AC_MSG_CHECKING([if 'dir_context' exist])
554 LB2_LINUX_TEST_RESULT([dir_context], [
555 AC_DEFINE(HAVE_DIR_CONTEXT, 1, [dir_context exist])
557 ]) # LC_HAVE_DIR_CONTEXT
562 # 3.11 dentry_operations.d_compare() taken 5 arguments.
564 AC_DEFUN([LC_SRC_D_COMPARE_5ARGS], [
565 LB2_LINUX_TEST_SRC([d_compare_5args], [
566 #include <linux/dcache.h>
568 ((struct dentry_operations*)0)->d_compare(NULL,NULL,0,NULL,NULL);
571 AC_DEFUN([LC_D_COMPARE_5ARGS], [
572 AC_MSG_CHECKING([if 'd_compare' taken 5 arguments])
573 LB2_LINUX_TEST_RESULT([d_compare_5args], [
574 AC_DEFINE(HAVE_D_COMPARE_5ARGS, 1,
575 [d_compare need 5 arguments])
577 ]) # LC_D_COMPARE_5ARGS
582 # 3.11 need to access d_count to get dentry reference count
584 AC_DEFUN([LC_SRC_HAVE_DCOUNT], [
585 LB2_LINUX_TEST_SRC([d_count], [
586 #include <linux/dcache.h>
588 struct dentry de = { };
591 count = d_count(&de);
594 AC_DEFUN([LC_HAVE_DCOUNT], [
595 AC_MSG_CHECKING([if 'd_count' exists])
596 LB2_LINUX_TEST_RESULT([d_count], [
597 AC_DEFINE(HAVE_D_COUNT, 1, [d_count exist])
602 # LC_PID_NS_FOR_CHILDREN
604 # 3.11 replaces pid_ns by pid_ns_for_children in struct nsproxy
606 AC_DEFUN([LC_SRC_PID_NS_FOR_CHILDREN], [
607 LB2_LINUX_TEST_SRC([pid_ns_for_children], [
608 #include <linux/nsproxy.h>
611 ns.pid_ns_for_children = NULL;
614 AC_DEFUN([LC_PID_NS_FOR_CHILDREN], [
615 AC_MSG_CHECKING([if 'struct nsproxy' has 'pid_ns_for_children'])
616 LB2_LINUX_TEST_RESULT([pid_ns_for_children], [
617 AC_DEFINE(HAVE_PID_NS_FOR_CHILDREN, 1,
618 ['struct nsproxy' has 'pid_ns_for_children'])
620 ]) # LC_PID_NS_FOR_CHILDREN
623 # LC_OLDSIZE_TRUNCATE_PAGECACHE
625 # 3.12 truncate_pagecache without oldsize parameter
627 AC_DEFUN([LC_SRC_OLDSIZE_TRUNCATE_PAGECACHE], [
628 LB2_LINUX_TEST_SRC([truncate_pagecache_old_size], [
629 #include <linux/mm.h>
631 truncate_pagecache(NULL, 0, 0);
634 AC_DEFUN([LC_OLDSIZE_TRUNCATE_PAGECACHE], [
635 AC_MSG_CHECKING([if 'truncate_pagecache' with 'old_size' parameter])
636 LB2_LINUX_TEST_RESULT([truncate_pagecache_old_size], [
637 AC_DEFINE(HAVE_OLDSIZE_TRUNCATE_PAGECACHE, 1,
640 ]) # LC_OLDSIZE_TRUNCATE_PAGECACHE
645 # For some reason SLES11SP4 is missing the PTR_ERR_OR_ZERO macro
646 # It was added to linux kernel 3.12
648 AC_DEFUN([LC_SRC_PTR_ERR_OR_ZERO_MISSING], [
649 LB2_LINUX_TEST_SRC([is_err_or_null], [
650 #include <linux/err.h>
652 if (PTR_ERR_OR_ZERO(NULL)) return 0;
655 AC_DEFUN([LC_PTR_ERR_OR_ZERO_MISSING], [
656 AC_MSG_CHECKING([if 'PTR_ERR_OR_ZERO' is missing])
657 LB2_LINUX_TEST_RESULT([is_err_or_null], [
658 AC_DEFINE(HAVE_PTR_ERR_OR_ZERO, 1,
659 ['PTR_ERR_OR_ZERO' exist])
661 ]) # LC_PTR_ERR_OR_ZERO_MISSING
664 # LC_HAVE_DENTRY_D_U_D_ALIAS
666 # 3.11 kernel moved d_alias to the union d_u in struct dentry
668 # Some distros move d_alias to d_u but it is still a struct list
670 AC_DEFUN([LC_SRC_HAVE_DENTRY_D_U_D_ALIAS_LIST], [
671 LB2_LINUX_TEST_SRC([d_alias_list], [
672 #include <linux/list.h>
673 #include <linux/dcache.h>
676 INIT_LIST_HEAD(&de.d_u.d_alias);
679 AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS_LIST], [
680 AC_MSG_CHECKING([if list 'dentry.d_u.d_alias' exist])
681 LB2_LINUX_TEST_RESULT([d_alias_list], [
682 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
683 [list dentry.d_u.d_alias exist])
685 ]) # LC_HAVE_DENTRY_D_U_D_ALIAS_LIST
688 # LC_HAVE_DENTRY_D_U_D_ALIAS_HLIST
690 # Some distros move d_alias to d_u and it is an hlist
692 AC_DEFUN([LC_SRC_HAVE_DENTRY_D_U_D_ALIAS_HLIST], [
693 LB2_LINUX_TEST_SRC([d_alias_hlist], [
694 #include <linux/list.h>
695 #include <linux/dcache.h>
698 INIT_HLIST_NODE(&de.d_u.d_alias);
701 AC_DEFUN([LC_HAVE_DENTRY_D_U_D_ALIAS_HLIST], [
702 AC_MSG_CHECKING([if hlist 'dentry.d_u.d_alias' exist])
703 LB2_LINUX_TEST_RESULT([d_alias_hlist], [
704 AC_DEFINE(HAVE_DENTRY_D_U_D_ALIAS, 1,
705 [list dentry.d_u.d_alias exist])
707 ]) # LC_HAVE_DENTRY_D_U_D_ALIAS_HLIST
711 # LC_HAVE_DENTRY_D_CHILD
713 # 3.11 kernel d_child has been moved out of the union d_u
716 AC_DEFUN([LC_SRC_HAVE_DENTRY_D_CHILD], [
717 LB2_LINUX_TEST_SRC([d_child], [
718 #include <linux/list.h>
719 #include <linux/dcache.h>
722 INIT_LIST_HEAD(&de.d_child);
725 AC_DEFUN([LC_HAVE_DENTRY_D_CHILD], [
726 AC_MSG_CHECKING([if 'dentry.d_child' exist])
727 LB2_LINUX_TEST_RESULT([d_child], [
728 AC_DEFINE(HAVE_DENTRY_D_CHILD, 1, [dentry.d_child exist])
730 ]) # LC_HAVE_DENTRY_D_CHILD
735 # 3.12 ki_left removed from struct kiocb
737 AC_DEFUN([LC_SRC_KIOCB_KI_LEFT], [
738 LB2_LINUX_TEST_SRC([kiocb_ki_left], [
739 #include <linux/aio.h>
741 ((struct kiocb*)0)->ki_left = 0;
744 AC_DEFUN([LC_KIOCB_KI_LEFT], [
745 AC_MSG_CHECKING([if 'struct kiocb' with 'ki_left' member])
746 LB2_LINUX_TEST_RESULT([kiocb_ki_left], [
747 AC_DEFINE(HAVE_KIOCB_KI_LEFT, 1,
750 ]) # LC_KIOCB_KI_LEFT
753 # LC_REGISTER_SHRINKER_RET
755 # v3.11-8748-g1d3d4437eae1 register_shrinker returns a status
757 AC_DEFUN([LC_SRC_REGISTER_SHRINKER_RET], [
758 LB2_LINUX_TEST_SRC([register_shrinker_ret], [
759 #include <linux/mm.h>
761 if (register_shrinker(NULL))
762 unregister_shrinker(NULL);
765 AC_DEFUN([LC_REGISTER_SHRINKER_RET], [
766 AC_MSG_CHECKING([if register_shrinker() returns status])
767 LB2_LINUX_TEST_RESULT([register_shrinker_ret], [
768 AC_DEFINE(HAVE_REGISTER_SHRINKER_RET, 1,
769 [register_shrinker() returns status])
771 ]) # LC_REGISTER_SHRINKER_RET
774 # LC_VFS_RENAME_5ARGS
776 # 3.13 has vfs_rename with 5 args
778 AC_DEFUN([LC_SRC_VFS_RENAME_5ARGS], [
779 LB2_LINUX_TEST_SRC([vfs_rename_5args], [
780 #include <linux/fs.h>
782 vfs_rename(NULL, NULL, NULL, NULL, NULL);
784 AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
785 [kernel has vfs_rename with 5 args])
788 AC_DEFUN([LC_VFS_RENAME_5ARGS], [
789 AC_MSG_CHECKING([if Linux kernel has 'vfs_rename' with 5 args])
790 LB2_LINUX_TEST_RESULT([vfs_rename_5args], [
791 AC_DEFINE(HAVE_VFS_RENAME_5ARGS, 1,
792 [kernel has vfs_rename with 5 args])
794 ]) # LC_VFS_RENAME_5ARGS
797 # LC_VFS_UNLINK_3ARGS
799 # 3.13 has vfs_unlink with 3 args
801 AC_DEFUN([LC_SRC_VFS_UNLINK_3ARGS], [
802 LB2_LINUX_TEST_SRC([vfs_unlink_3args], [
803 #include <linux/fs.h>
805 vfs_unlink(NULL, NULL, NULL);
808 AC_DEFUN([LC_VFS_UNLINK_3ARGS], [
809 AC_MSG_CHECKING([if Linux kernel has 'vfs_unlink' with 3 args])
810 LB2_LINUX_TEST_RESULT([vfs_unlink_3args], [
811 AC_DEFINE(HAVE_VFS_UNLINK_3ARGS, 1,
812 [kernel has vfs_unlink with 3 args])
814 ]) # LC_VFS_UNLINK_3ARGS
816 # LC_HAVE_D_IS_POSITIVE
818 # Kernel version 3.13 b18825a7c8e37a7cf6abb97a12a6ad71af160de7
819 # d_is_positive is added
821 AC_DEFUN([LC_SRC_HAVE_D_IS_POSITIVE], [
822 LB2_LINUX_TEST_SRC([d_is_positive], [
823 #include <linux/dcache.h>
828 AC_DEFUN([LC_HAVE_D_IS_POSITIVE], [
829 AC_MSG_CHECKING([if 'd_is_positive' exist])
830 LB2_LINUX_TEST_RESULT([d_is_positive], [
831 AC_DEFINE(HAVE_D_IS_POSITIVE, 1,
832 ['d_is_positive' is available])
834 ]) # LC_HAVE_D_IS_POSITIVE
839 # 3.14 move some of its data in struct bio into the new
842 AC_DEFUN([LC_SRC_HAVE_BVEC_ITER], [
843 LB2_LINUX_TEST_SRC([have_bvec_iter], [
844 #include <linux/bio.h>
846 struct bvec_iter iter;
848 iter.bi_bvec_done = 0;
851 AC_DEFUN([LC_HAVE_BVEC_ITER], [
852 AC_MSG_CHECKING([if Linux kernel has struct bvec_iter])
853 LB2_LINUX_TEST_RESULT([have_bvec_iter], [
854 AC_DEFINE(HAVE_BVEC_ITER, 1,
855 [kernel has struct bvec_iter])
857 ]) # LC_HAVE_BVEC_ITER
862 # 3.14 adds set_acl method to inode_operations
863 # see kernel commit 893d46e443346370cd4ea81d9d35f72952c62a37
865 AC_DEFUN([LC_SRC_IOP_SET_ACL], [
866 LB2_LINUX_TEST_SRC([inode_ops_set_acl], [
867 #include <linux/fs.h>
869 struct inode_operations iop;
873 AC_DEFUN([LC_IOP_SET_ACL], [
874 AC_MSG_CHECKING([if 'inode_operations' has '.set_acl' member function])
875 LB2_LINUX_TEST_RESULT([inode_ops_set_acl], [
876 AC_DEFINE(HAVE_IOP_SET_ACL, 1,
877 [inode_operations has .set_acl member function])
882 # LC_HAVE_TRUNCATE_IPAGE_FINAL
884 # 3.14 bring truncate_inode_pages_final for evict_inode
886 AC_DEFUN([LC_SRC_HAVE_TRUNCATE_IPAGES_FINAL], [
887 LB2_LINUX_TEST_SRC([truncate_ipages_final], [
888 #include <linux/mm.h>
890 truncate_inode_pages_final(NULL);
893 AC_DEFUN([LC_HAVE_TRUNCATE_IPAGES_FINAL], [
894 AC_MSG_CHECKING([if Linux kernel has truncate_inode_pages_final])
895 LB2_LINUX_TEST_RESULT([truncate_ipages_final], [
896 AC_DEFINE(HAVE_TRUNCATE_INODE_PAGES_FINAL, 1,
897 [kernel has truncate_inode_pages_final])
899 ]) # LC_HAVE_TRUNCATE_IPAGES_FINAL
902 # LC_IOPS_RENAME_WITH_FLAGS
904 # 3.14 has inode_operations->rename with 5 args
905 # commit 520c8b16505236fc82daa352e6c5e73cd9870cff
907 AC_DEFUN([LC_SRC_IOPS_RENAME_WITH_FLAGS], [
908 LB2_LINUX_TEST_SRC([iops_rename_with_flags], [
909 #include <linux/fs.h>
911 struct inode *i1 = NULL, *i2 = NULL;
912 struct dentry *d1 = NULL, *d2 = NULL;
914 rc = ((struct inode_operations *)0)->rename(i1, d1, i2, d2, 0);
916 ]) # LC_IOPS_RENAME_WITH_FLAGS
917 AC_DEFUN([LC_IOPS_RENAME_WITH_FLAGS], [
918 AC_MSG_CHECKING([if 'inode_operations->rename' taken flags as argument])
919 LB2_LINUX_TEST_RESULT([iops_rename_with_flags], [
920 AC_DEFINE(HAVE_IOPS_RENAME_WITH_FLAGS, 1,
921 [inode_operations->rename need flags as argument])
923 ]) # LC_IOPS_RENAME_WITH_FLAGS
926 # LC_VFS_RENAME_6ARGS
928 # 3.15 has vfs_rename with 6 args
930 AC_DEFUN([LC_SRC_VFS_RENAME_6ARGS], [
931 LB2_LINUX_TEST_SRC([vfs_rename_6args], [
932 #include <linux/fs.h>
934 vfs_rename(NULL, NULL, NULL, NULL, NULL, NULL);
937 AC_DEFUN([LC_VFS_RENAME_6ARGS], [
938 AC_MSG_CHECKING([if Linux kernel has 'vfs_rename' with 6 args])
939 LB2_LINUX_TEST_RESULT([vfs_rename_6args], [
940 AC_DEFINE(HAVE_VFS_RENAME_6ARGS, 1,
941 [kernel has vfs_rename with 6 args])
943 ]) # LC_VFS_RENAME_6ARGS
946 # LC_DIRECTIO_USE_ITER
948 # 3.16 kernel changes direct IO to use iov_iter
950 AC_DEFUN([LC_SRC_DIRECTIO_USE_ITER], [
951 LB2_LINUX_TEST_SRC([direct_io_iter], [
952 #include <linux/fs.h>
954 struct address_space_operations ops = { };
955 struct iov_iter *iter = NULL;
958 ops.direct_IO(0, NULL, iter, offset);
961 AC_DEFUN([LC_DIRECTIO_USE_ITER], [
962 AC_MSG_CHECKING([if direct IO uses iov_iter])
963 LB2_LINUX_TEST_RESULT([direct_io_iter], [
964 AC_DEFINE(HAVE_DIRECTIO_ITER, 1, [direct IO uses iov_iter])
966 ]) # LC_DIRECTIO_USE_ITER
969 # LC_HAVE_IOV_ITER_INIT_DIRECTION
972 # 3.16 linux commit 71d8e532b1549a478e6a6a8a44f309d050294d00
973 # changed iov_iter_init api to start accepting a tag
974 # that defines if its a read or write operation
976 AC_DEFUN([LC_SRC_HAVE_IOV_ITER_INIT_DIRECTION], [
977 LB2_LINUX_TEST_SRC([iter_init], [
978 #include <linux/uio.h>
979 #include <linux/fs.h>
981 const struct iovec *iov = NULL;
983 iov_iter_init(NULL, READ, iov, 1, 0);
986 AC_DEFUN([LC_HAVE_IOV_ITER_INIT_DIRECTION], [
987 AC_MSG_CHECKING([if 'iov_iter_init' takes a tag])
988 LB2_LINUX_TEST_RESULT([iter_init], [
989 AC_DEFINE(HAVE_IOV_ITER_INIT_DIRECTION, 1,
990 [iov_iter_init handles directional tag])
992 ]) # LC_HAVE_IOV_ITER_INIT_DIRECTION
995 # LC_HAVE_IOV_ITER_TRUNCATE
998 # 3.16 introduces a new API iov_iter_truncate()
1000 AC_DEFUN([LC_SRC_HAVE_IOV_ITER_TRUNCATE], [
1001 LB2_LINUX_TEST_SRC([iter_truncate], [
1002 #include <linux/uio.h>
1003 #include <linux/fs.h>
1005 struct iov_iter *i = NULL;
1007 iov_iter_truncate(i, 0);
1010 AC_DEFUN([LC_HAVE_IOV_ITER_TRUNCATE], [
1011 AC_MSG_CHECKING([if 'iov_iter_truncate' exists])
1012 LB2_LINUX_TEST_RESULT([iter_truncate], [
1013 AC_DEFINE(HAVE_IOV_ITER_TRUNCATE, 1, [iov_iter_truncate exists])
1015 ]) # LC_HAVE_IOV_ITER_TRUNCATE
1018 # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1020 # 3.16 introduces [read|write]_iter to struct file_operations
1022 AC_DEFUN([LC_SRC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
1023 LB2_LINUX_TEST_SRC([file_function_iter], [
1024 #include <linux/fs.h>
1026 ((struct file_operations *)NULL)->read_iter(NULL, NULL);
1027 ((struct file_operations *)NULL)->write_iter(NULL, NULL);
1030 AC_DEFUN([LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER], [
1031 AC_MSG_CHECKING([if 'file_operations.[read|write]_iter' exist])
1032 LB2_LINUX_TEST_RESULT([file_function_iter], [
1033 AC_DEFINE(HAVE_FILE_OPERATIONS_READ_WRITE_ITER, 1,
1034 [file_operations.[read|write]_iter functions exist])
1036 ]) # LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
1039 # LC_PAGECACHE_GET_PAGE
1041 # Kernel version 3.16 commit 2457aec63745e235bcafb7ef312b182d8682f0fc
1042 # @pagecache_get_page was introduced since Linux 3.16
1044 AC_DEFUN([LC_SRC_PAGECACHE_GET_PAGE], [
1045 LB2_LINUX_TEST_SRC([pagecache_get_page], [
1046 #include <linux/pagemap.h>
1048 pagecache_get_page(NULL, 0, 0, 0);
1051 AC_DEFUN([LC_PAGECACHE_GET_PAGE], [
1052 AC_MSG_CHECKING([if 'pagecache_get_page' exists])
1053 LB2_LINUX_TEST_RESULT([pagecache_get_page], [
1054 AC_DEFINE(HAVE_PAGECACHE_GET_PAGE, 1,
1055 ['pagecache_get_page' is available])
1057 ]) # LC_PAGECACHE_GET_PAGE
1060 # LC_HAVE_INTERVAL_BLK_INTEGRITY
1062 # 3.17 replace sector_size with interval in struct blk_integrity
1064 AC_DEFUN([LC_SRC_HAVE_INTERVAL_BLK_INTEGRITY], [
1065 LB2_LINUX_TEST_SRC([interval_blk_integrity], [
1066 #include <linux/blkdev.h>
1068 ((struct blk_integrity *)0)->interval = 0;
1071 AC_DEFUN([LC_HAVE_INTERVAL_BLK_INTEGRITY], [
1072 AC_MSG_CHECKING([if 'blk_integrity.interval' exist])
1073 LB2_LINUX_TEST_RESULT([interval_blk_integrity], [
1074 AC_DEFINE(HAVE_INTERVAL_BLK_INTEGRITY, 1,
1075 [blk_integrity.interval exist])
1077 ]) # LC_HAVE_INTERVAL_BLK_INTEGRITY
1082 # 3.17 replaces key_type::match with match_preparse
1083 # and has new struct key_match_data
1085 AC_DEFUN([LC_SRC_KEY_MATCH_DATA], [
1086 LB2_LINUX_TEST_SRC([key_match], [
1087 #include <linux/key-type.h>
1089 struct key_match_data data;
1091 data.raw_data = NULL;
1094 AC_DEFUN([LC_KEY_MATCH_DATA], [
1095 AC_MSG_CHECKING([if struct key_match field exist])
1096 LB2_LINUX_TEST_RESULT([key_match], [
1097 AC_DEFINE(HAVE_KEY_MATCH_DATA, 1, [struct key_match_data exist])
1099 ]) # LC_KEY_MATCH_DATA
1102 # LC_HAVE_BLK_INTEGRITY_ITER
1104 # Linux commit v3.17-rc5-69-g1859308853b1 replaces
1105 # struct blk_integrity_exchg with struct blk_integrity_iter
1107 # LB_CHECK_LINUX_HEADER has already run so we can rely on
1108 # HAVE_LINUX_BLK_INTEGRITY_HEADER being set correctly before
1111 AC_DEFUN([LC_SRC_HAVE_BLK_INTEGRITY_ITER], [
1112 LB2_LINUX_TEST_SRC([blk_integrity_iter], [
1113 #ifdef HAVE_LINUX_BLK_INTEGRITY_HEADER
1114 # include <linux/blk-integrity.h>
1116 # include <linux/blkdev.h>
1119 struct blk_integrity_iter iter;
1121 iter.prot_buf = NULL;
1124 AC_DEFUN([LC_HAVE_BLK_INTEGRITY_ITER], [
1125 AC_MSG_CHECKING([if struct blk_integrity_iter exist])
1126 LB2_LINUX_TEST_RESULT([blk_integrity_iter], [
1127 AC_DEFINE(HAVE_BLK_INTEGRITY_ITER, 1,
1128 [kernel has struct blk_integrity_iter])
1130 ]) # LC_HAVE_BLK_INTEGRITY_ITER
1133 # LC_NFS_FILLDIR_USE_CTX
1135 # 3.18 kernel moved from void cookie to struct dir_context
1137 AC_DEFUN([LC_SRC_NFS_FILLDIR_USE_CTX], [
1138 LB2_LINUX_TEST_SRC([filldir_ctx], [
1139 #include <linux/fs.h>
1141 int filldir(struct dir_context *ctx, const char* name,
1142 int i, loff_t off, u64 tmp, unsigned temp)
1147 struct dir_context ctx = {
1151 ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
1154 AC_DEFUN([LC_NFS_FILLDIR_USE_CTX], [
1155 AC_MSG_CHECKING([if filldir_t uses struct dir_context])
1156 LB2_LINUX_TEST_RESULT([filldir_ctx], [
1157 AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
1158 [filldir_t needs struct dir_context as argument])
1160 ]) # LC_NFS_FILLDIR_USE_CTX
1163 # LC_PERCPU_COUNTER_INIT
1165 # 3.18 For kernels 3.18 and after percpu_counter_init starts
1166 # to pass a GFP_* memory allocation flag for internal
1167 # memory allocation purposes.
1169 AC_DEFUN([LC_SRC_PERCPU_COUNTER_INIT], [
1170 LB2_LINUX_TEST_SRC([percpu_counter_init], [
1171 #include <linux/percpu_counter.h>
1173 percpu_counter_init(NULL, 0, GFP_KERNEL);
1176 AC_DEFUN([LC_PERCPU_COUNTER_INIT], [
1177 AC_MSG_CHECKING([if percpu_counter_init uses GFP_* flag as argument])
1178 LB2_LINUX_TEST_RESULT([percpu_counter_init], [
1179 AC_DEFINE(HAVE_PERCPU_COUNTER_INIT_GFP_FLAG, 1,
1180 [percpu_counter_init uses GFP_* flag])
1182 ]) # LC_PERCPU_COUNTER_INIT
1185 # LC_KIOCB_HAS_NBYTES
1187 # 3.19 kernel removed ki_nbytes from struct kiocb
1189 AC_DEFUN([LC_SRC_KIOCB_HAS_NBYTES], [
1190 LB2_LINUX_TEST_SRC([ki_nbytes], [
1191 #include <linux/fs.h>
1193 struct kiocb iocb = { };
1198 AC_DEFUN([LC_KIOCB_HAS_NBYTES], [
1199 AC_MSG_CHECKING([if struct kiocb has ki_nbytes field])
1200 LB2_LINUX_TEST_RESULT([ki_nbytes], [
1201 AC_DEFINE(HAVE_KI_NBYTES, 1, [ki_nbytes field exist])
1203 ]) # LC_KIOCB_HAS_NBYTES
1206 # LC_HAVE_DQUOT_QC_DQBLK
1208 # 3.19 has quotactl_ops->[sg]et_dqblk that take struct kqid and qc_dqblk
1209 # Added in commit 14bf61ffe
1211 AC_DEFUN([LC_SRC_HAVE_DQUOT_QC_DQBLK], [
1212 LB2_LINUX_TEST_SRC([qc_dqblk], [
1213 #include <linux/fs.h>
1214 #include <linux/quota.h>
1216 ((struct quotactl_ops *)0)->set_dqblk(NULL, *((struct kqid*)0), (struct qc_dqblk*)0);
1219 AC_DEFUN([LC_HAVE_DQUOT_QC_DQBLK], [
1220 AC_MSG_CHECKING([if 'quotactl_ops.set_dqblk' takes struct qc_dqblk])
1221 LB2_LINUX_TEST_RESULT([qc_dqblk], [
1222 AC_DEFINE(HAVE_DQUOT_QC_DQBLK, 1,
1223 [quotactl_ops.set_dqblk takes struct qc_dqblk])
1224 AC_DEFINE(HAVE_DQUOT_KQID, 1,
1225 [quotactl_ops.set_dqblk takes struct kqid])
1227 ]) # LC_HAVE_DQUOT_QC_DQBLK
1230 # LC_HAVE_AIO_COMPLETE
1232 # 3.19 kernel makes aio_complete() static
1234 AC_DEFUN([LC_SRC_HAVE_AIO_COMPLETE], [
1235 LB2_LINUX_TEST_SRC([aio_complete], [
1236 #include <linux/aio.h>
1238 aio_complete(NULL, 0, 0);
1241 AC_DEFUN([LC_HAVE_AIO_COMPLETE], [
1242 AC_MSG_CHECKING([if kernel has exported aio_complete()])
1243 LB2_LINUX_TEST_RESULT([aio_complete], [
1244 AC_DEFINE(HAVE_AIO_COMPLETE, 1, [aio_complete defined])
1246 ]) # LC_HAVE_AIO_COMPLETE
1249 # LC_HAVE_IS_ROOT_INODE
1251 # 3.19 kernel adds is_root_inode()
1252 # Commit a7400222e3eb ("new helper: is_root_inode()")
1254 AC_DEFUN([LC_SRC_HAVE_IS_ROOT_INODE], [
1255 LB2_LINUX_TEST_SRC([is_root_inode], [
1256 #include <linux/fs.h>
1258 is_root_inode(NULL);
1261 AC_DEFUN([LC_HAVE_IS_ROOT_INODE], [
1262 AC_MSG_CHECKING([if kernel has is_root_inode()])
1263 LB2_LINUX_TEST_RESULT([is_root_inode], [
1264 AC_DEFINE(HAVE_IS_ROOT_INODE, 1, [is_root_inode defined])
1266 ]) # LC_HAVE_IS_ROOT_INODE
1269 # LC_BACKING_DEV_INFO_REMOVAL
1271 # 3.20 kernel removed backing_dev_info from address_space
1273 AC_DEFUN([LC_SRC_BACKING_DEV_INFO_REMOVAL], [
1274 LB2_LINUX_TEST_SRC([backing_dev_info], [
1275 #include <linux/fs.h>
1277 struct address_space mapping;
1279 mapping.backing_dev_info = NULL;
1282 AC_DEFUN([LC_BACKING_DEV_INFO_REMOVAL], [
1283 AC_MSG_CHECKING([if struct address_space has backing_dev_info])
1284 LB2_LINUX_TEST_RESULT([backing_dev_info], [
1285 AC_DEFINE(HAVE_BACKING_DEV_INFO, 1, [backing_dev_info exist])
1287 ]) # LC_BACKING_DEV_INFO_REMOVAL
1290 # LC_HAVE_PROJECT_QUOTA
1292 # Kernel version v4.0-rc1-197-g847aac644e92
1294 AC_DEFUN([LC_SRC_HAVE_PROJECT_QUOTA], [
1295 LB2_LINUX_TEST_SRC([get_projid], [
1297 #include <linux/quota.h>
1299 struct dquot_operations ops = { };
1301 ops.get_projid(NULL, NULL);
1304 AC_DEFUN([LC_HAVE_PROJECT_QUOTA], [
1305 AC_MSG_CHECKING([if get_projid exists])
1306 LB2_LINUX_TEST_RESULT([get_projid], [
1307 AC_DEFINE(HAVE_PROJECT_QUOTA, 1,
1308 [get_projid function exists])
1310 ]) # LC_HAVE_PROJECT_QUOTA
1315 # 4.1 kernel has iov_iter_rw
1317 AC_DEFUN([LC_SRC_IOV_ITER_RW], [
1318 LB2_LINUX_TEST_SRC([iov_iter_rw], [
1319 #include <linux/fs.h>
1320 #include <linux/uio.h>
1322 struct iov_iter *iter = NULL;
1327 AC_DEFUN([LC_IOV_ITER_RW], [
1328 AC_MSG_CHECKING([if iov_iter_rw exist])
1329 LB2_LINUX_TEST_RESULT([iov_iter_rw], [
1330 AC_DEFINE(HAVE_IOV_ITER_RW, 1, [iov_iter_rw exist])
1335 # LC_HAVE_SYNC_READ_WRITE
1337 # 4.1 new_sync_[read|write] no longer exported
1339 AC_DEFUN([LC_HAVE_SYNC_READ_WRITE], [
1340 LB_CHECK_EXPORT([new_sync_read], [fs/read_write.c],
1341 [AC_DEFINE(HAVE_SYNC_READ_WRITE, 1,
1342 [new_sync_[read|write] is exported by the kernel])])
1343 ]) # LC_HAVE_SYNC_READ_WRITE
1348 # 4.1 redefined bi_cnt as __bi_cnt in commit dac56212e8127dbc0
1350 AC_DEFUN([LC_SRC_HAVE___BI_CNT], [
1351 LB2_LINUX_TEST_SRC([have___bi_cnt], [
1352 #include <asm/atomic.h>
1353 #include <linux/bio.h>
1354 #include <linux/blk_types.h>
1356 struct bio bio = { };
1358 cnt = atomic_read(&bio.__bi_cnt);
1361 AC_DEFUN([LC_HAVE___BI_CNT], [
1362 AC_MSG_CHECKING([if Linux kernel has __bi_cnt in struct bio])
1363 LB2_LINUX_TEST_RESULT([have___bi_cnt], [
1364 AC_DEFINE(HAVE___BI_CNT, 1, [struct bio has __bi_cnt])
1366 ]) # LC_HAVE___BI_CNT
1369 # LC_SYMLINK_OPS_USE_NAMEIDATA
1371 # For the 4.2+ kernels the file system internal symlink api no
1372 # longer uses struct nameidata as a argument
1374 AC_DEFUN([LC_SRC_SYMLINK_OPS_USE_NAMEIDATA], [
1375 LB2_LINUX_TEST_SRC([symlink_use_nameidata], [
1376 #include <linux/namei.h>
1377 #include <linux/fs.h>
1379 struct nameidata *nd = NULL;
1381 ((struct inode_operations *)0)->follow_link(NULL, nd);
1382 ((struct inode_operations *)0)->put_link(NULL, nd, NULL);
1385 AC_DEFUN([LC_SYMLINK_OPS_USE_NAMEIDATA], [
1386 AC_MSG_CHECKING([if symlink inode operations have struct nameidata argument])
1387 LB2_LINUX_TEST_RESULT([symlink_use_nameidata], [
1388 AC_DEFINE(HAVE_SYMLINK_OPS_USE_NAMEIDATA, 1,
1389 [symlink inode operations need struct nameidata argument])
1391 ]) # LC_SYMLINK_OPS_USE_NAMEIDATA
1394 # LC_BIO_ENDIO_USES_ONE_ARG
1396 # 4.2 kernel bio_endio now only takes one argument
1398 AC_DEFUN([LC_SRC_BIO_ENDIO_USES_ONE_ARG], [
1399 LB2_LINUX_TEST_SRC([bio_endio], [
1400 #include <linux/bio.h>
1405 AC_DEFUN([LC_BIO_ENDIO_USES_ONE_ARG], [
1406 AC_MSG_CHECKING([if 'bio_endio' with one argument exist])
1407 LB2_LINUX_TEST_RESULT([bio_endio], [
1408 AC_DEFINE(HAVE_BIO_ENDIO_USES_ONE_ARG, 1,
1409 [bio_endio takes only one argument])
1411 ]) # LC_BIO_ENDIO_USES_ONE_ARG
1414 # LC_ACCOUNT_PAGE_DIRTIED_3ARGS
1416 # 4.2 [to 4.5] kernel page dirtied takes 3 arguments
1418 AC_DEFUN([LC_SRC_ACCOUNT_PAGE_DIRTIED_3ARGS], [
1419 LB2_LINUX_TEST_SRC([account_page_dirtied_3a], [
1420 #include <linux/mm.h>
1422 account_page_dirtied(NULL, NULL, NULL);
1425 AC_DEFUN([LC_ACCOUNT_PAGE_DIRTIED_3ARGS], [
1426 AC_MSG_CHECKING([if 'account_page_dirtied' with 3 args exists])
1427 LB2_LINUX_TEST_RESULT([account_page_dirtied_3a], [
1428 AC_DEFINE(HAVE_ACCOUNT_PAGE_DIRTIED_3ARGS, 1,
1429 [account_page_dirtied takes three arguments])
1431 ]) # LC_ACCOUNT_PAGE_DIRTIED_3ARGS
1434 # LC_HAVE_CRYPTO_ALLOC_SKCIPHER
1436 # Kernel version 4.12 commit 7a7ffe65c8c5
1437 # introduced crypto_alloc_skcipher().
1439 AC_DEFUN([LC_SRC_HAVE_CRYPTO_ALLOC_SKCIPHER], [
1440 LB2_LINUX_TEST_SRC([crypto_alloc_skcipher], [
1441 #include <crypto/skcipher.h>
1443 crypto_alloc_skcipher(NULL, 0, 0);
1446 AC_DEFUN([LC_HAVE_CRYPTO_ALLOC_SKCIPHER], [
1447 AC_MSG_CHECKING([if crypto_alloc_skcipher is defined])
1448 LB2_LINUX_TEST_RESULT([crypto_alloc_skcipher], [
1449 AC_DEFINE(HAVE_CRYPTO_ALLOC_SKCIPHER, 1,
1450 [crypto_alloc_skcipher is defined])
1452 ]) # LC_HAVE_CRYPTO_ALLOC_SKCIPHER
1455 # LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
1457 # 4.3 replace interval with interval_exp in 'struct blk_integrity'
1458 # 'struct blk_integrity_profile' is also added in this version,
1459 # thus use this to determine whether 'struct blk_integrity' has profile
1461 AC_DEFUN([LC_SRC_HAVE_INTERVAL_EXP_BLK_INTEGRITY], [
1462 LB2_LINUX_TEST_SRC([blk_integrity_interval_exp], [
1463 #include <linux/blkdev.h>
1465 ((struct blk_integrity *)0)->interval_exp = 0;
1468 AC_DEFUN([LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY], [
1469 AC_MSG_CHECKING([if 'blk_integrity.interval_exp' exist])
1470 LB2_LINUX_TEST_RESULT([blk_integrity_interval_exp], [
1471 AC_DEFINE(HAVE_INTERVAL_EXP_BLK_INTEGRITY, 1,
1472 [blk_integrity.interval_exp exist])
1474 ]) # LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
1477 # LC_HAVE_CACHE_HEAD_HLIST
1479 # 4.3 kernel swiched to hlist for cache_head
1481 AC_DEFUN([LC_SRC_HAVE_CACHE_HEAD_HLIST], [
1482 LB2_LINUX_TEST_SRC([cache_head_has_hlist], [
1483 #include <linux/sunrpc/cache.h>
1485 do {} while(sizeof(((struct cache_head *)0)->cache_list));
1488 AC_DEFUN([LC_HAVE_CACHE_HEAD_HLIST], [
1489 AC_MSG_CHECKING([if 'struct cache_head' has 'cache_list' field])
1490 LB2_LINUX_TEST_RESULT([cache_head_has_hlist], [
1491 AC_DEFINE(HAVE_CACHE_HEAD_HLIST, 1,
1492 [cache_head has hlist cache_list])
1494 ]) # LC_HAVE_CACHE_HEAD_HLIST
1497 # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
1499 # Kernel version 4.3 commit e409de992e3ea3674393465f07cc71c948edd87a
1500 # simplified xattr_handler handling by passing in the handler pointer
1502 AC_DEFUN([LC_SRC_HAVE_XATTR_HANDLER_SIMPLIFIED], [
1503 LB2_LINUX_TEST_SRC([xattr_handler_simplified], [
1504 #include <linux/xattr.h>
1506 struct xattr_handler handler;
1508 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, 0);
1509 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, 0, 0);
1512 AC_DEFUN([LC_HAVE_XATTR_HANDLER_SIMPLIFIED], [
1513 AC_MSG_CHECKING([if 'struct xattr_handler' functions pass in handler pointer])
1514 LB2_LINUX_TEST_RESULT([xattr_handler_simplified], [
1515 AC_DEFINE(HAVE_XATTR_HANDLER_SIMPLIFIED, 1,
1516 [handler pointer is parameter])
1518 ]) # LC_HAVE_XATTR_HANDLER_SIMPLIFIED
1521 # LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
1523 # 4.3 replace interval with interval_exp in 'struct blk_integrity'.
1525 AC_DEFUN([LC_SRC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD], [
1526 LB2_LINUX_TEST_SRC([bio_integrity_payload_bip_iter], [
1527 #include <linux/bio.h>
1529 ((struct bio_integrity_payload *)0)->bip_iter.bi_size = 0;
1532 AC_DEFUN([LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD], [
1533 AC_MSG_CHECKING([if 'bio_integrity_payload.bip_iter' exist])
1534 LB2_LINUX_TEST_RESULT([bio_integrity_payload_bip_iter], [
1535 AC_DEFINE(HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD, 1,
1536 [bio_integrity_payload.bip_iter exist])
1538 ]) # LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
1541 # LC_BIO_INTEGRITY_PREP_FN
1543 # Lustre kernel patch extents bio_integrity_prep to accept optional
1544 # generate/verify_fn as extra args.
1546 AC_DEFUN([LC_SRC_BIO_INTEGRITY_PREP_FN], [
1547 LB2_LINUX_TEST_SRC([bio_integrity_prep_fn], [
1548 #include <linux/bio.h>
1550 bio_integrity_prep_fn(NULL, NULL, NULL);
1553 AC_DEFUN([LC_BIO_INTEGRITY_PREP_FN], [
1554 AC_MSG_CHECKING([if 'bio_integrity_prep_fn' exists])
1555 LB2_LINUX_TEST_RESULT([bio_integrity_prep_fn], [
1556 AC_DEFINE(HAVE_BIO_INTEGRITY_PREP_FN, 1,
1557 [kernel has bio_integrity_prep_fn])
1558 AC_SUBST(PATCHED_INTEGRITY_INTF)
1560 AC_SUBST(PATCHED_INTEGRITY_INTF, [#])
1562 ]) # LC_BIO_INTEGRITY_PREP_FN
1564 # LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL
1566 # 13 kernel integrity API has changed and in 4.13+
1567 # (as well as in rhel 8.4) bio_integrity_prep() returns boolean true
1570 AC_DEFUN([LC_SRC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL], [
1571 LB2_LINUX_TEST_SRC([bio_integrity_prep_ret_bool], [
1572 #include <linux/bio.h>
1573 #include <linux/typecheck.h>
1575 #pragma GCC diagnostic warning "-Werror"
1576 typedef bool (*bio_integrity_prep_type)(struct bio *bio) ;
1578 typecheck_fn(bio_integrity_prep_type, bio_integrity_prep);
1581 AC_DEFUN([LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL], [
1582 AC_MSG_CHECKING([if 'bio_integrity_prep_fn' returns bool])
1583 LB2_LINUX_TEST_RESULT([bio_integrity_prep_ret_bool], [
1584 AC_DEFINE(HAVE_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL, 1,
1585 [bio_integrity_prep_fn returns bool])
1587 ]) # LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL
1592 # 4.4/4.8 redefined bi_rw as bi_opf (SLES12/kernel commit 4382e33ad37486)
1594 AC_DEFUN([LC_SRC_HAVE_BI_OPF], [
1595 LB2_LINUX_TEST_SRC([have_bi_opf], [
1596 #include <linux/bio.h>
1603 AC_DEFUN([LC_HAVE_BI_OPF], [
1604 AC_MSG_CHECKING([if Linux kernel has bi_opf in struct bio])
1605 LB2_LINUX_TEST_RESULT([have_bi_opf], [
1606 AC_DEFINE(HAVE_BI_OPF, 1, [struct bio has bi_opf])
1611 # LC_HAVE_SUBMIT_BIO_2ARGS
1613 # 4.4 removed an argument from submit_bio
1615 AC_DEFUN([LC_SRC_HAVE_SUBMIT_BIO_2ARGS], [
1616 LB2_LINUX_TEST_SRC([have_submit_bio_2args], [
1617 #include <linux/bio.h>
1620 submit_bio(READ, &bio);
1623 AC_DEFUN([LC_HAVE_SUBMIT_BIO_2ARGS], [
1624 AC_MSG_CHECKING([if submit_bio takes two arguments])
1625 LB2_LINUX_TEST_RESULT([have_submit_bio_2args], [
1626 AC_DEFINE(HAVE_SUBMIT_BIO_2ARGS, 1,
1627 [submit_bio takes two arguments])
1629 ]) # LC_HAVE_SUBMIT_BIO_2_ARGS
1632 # LC_HAVE_CLEAN_BDEV_ALIASES
1634 # 4.4/4.9 unmap_underlying_metadata was replaced by clean_bdev_aliases
1635 # (SLES12/kernel commit 29f3ad7d8380364c)
1637 AC_DEFUN([LC_SRC_HAVE_CLEAN_BDEV_ALIASES], [
1638 LB2_LINUX_TEST_SRC([have_clean_bdev_aliases], [
1639 #include <linux/buffer_head.h>
1641 clean_bdev_aliases(NULL,1,1);
1644 AC_DEFUN([LC_HAVE_CLEAN_BDEV_ALIASES], [
1645 AC_MSG_CHECKING([if kernel has clean_bdev_aliases])
1646 LB2_LINUX_TEST_RESULT([have_clean_bdev_aliases], [
1647 AC_DEFINE(HAVE_CLEAN_BDEV_ALIASES, 1,
1648 [kernel has clean_bdev_aliases])
1650 ]) # LC_HAVE_CLEAN_BDEV_ALIASES
1653 # LC_HAVE_LOCKS_LOCK_FILE_WAIT
1655 # 4.4 kernel have moved locks API users to
1656 # locks_lock_inode_wait()
1658 AC_DEFUN([LC_SRC_HAVE_LOCKS_LOCK_FILE_WAIT], [
1659 LB2_LINUX_TEST_SRC([locks_lock_file_wait], [
1660 #include <linux/fs.h>
1662 locks_lock_file_wait(NULL, NULL);
1665 AC_DEFUN([LC_HAVE_LOCKS_LOCK_FILE_WAIT], [
1666 AC_MSG_CHECKING([if 'locks_lock_file_wait' exists])
1667 LB2_LINUX_TEST_RESULT([locks_lock_file_wait], [
1668 AC_DEFINE(HAVE_LOCKS_LOCK_FILE_WAIT, 1,
1669 [kernel has locks_lock_file_wait])
1671 ]) # LC_HAVE_LOCKS_LOCK_FILE_WAIT
1674 # LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
1676 # 4.4 kernel merged type-specific data with the payload data for keys
1678 AC_DEFUN([LC_SRC_HAVE_KEY_PAYLOAD_DATA_ARRAY], [
1679 LB2_LINUX_TEST_SRC([key_payload_data_array], [
1680 #include <linux/key.h>
1682 struct key key = { };
1684 key.payload.data[0] = NULL;
1687 AC_DEFUN([LC_HAVE_KEY_PAYLOAD_DATA_ARRAY], [
1688 AC_MSG_CHECKING([if 'struct key' has 'payload.data' as an array])
1689 LB2_LINUX_TEST_RESULT([key_payload_data_array], [
1690 AC_DEFINE(HAVE_KEY_PAYLOAD_DATA_ARRAY, 1, [payload.data is an array])
1692 ]) # LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
1695 # LC_HAVE_XATTR_HANDLER_NAME
1697 # Kernel version 4.4 commit 98e9cb5711c68223f0e4d5201b9a6add255ec550
1698 # add a name member to struct xattr_handler
1700 AC_DEFUN([LC_SRC_HAVE_XATTR_HANDLER_NAME], [
1701 LB2_LINUX_TEST_SRC([xattr_handler_name], [
1702 #include <linux/xattr.h>
1704 ((struct xattr_handler *)NULL)->name = NULL;
1707 AC_DEFUN([LC_HAVE_XATTR_HANDLER_NAME], [
1708 AC_MSG_CHECKING([if 'struct xattr_handler' has a name member])
1709 LB2_LINUX_TEST_RESULT([xattr_handler_name], [
1710 AC_DEFINE(HAVE_XATTR_HANDLER_NAME, 1,
1711 [xattr_handler has a name member])
1713 ]) # LC_HAVE_XATTR_HANDLER_NAME
1716 # LC_HAVE_FILE_DENTRY
1718 # 4.5 adds wrapper file_dentry
1720 AC_DEFUN([LC_SRC_HAVE_FILE_DENTRY], [
1721 LB2_LINUX_TEST_SRC([file_dentry], [
1722 #include <linux/fs.h>
1727 AC_DEFUN([LC_HAVE_FILE_DENTRY], [
1728 AC_MSG_CHECKING([if Linux kernel has 'file_dentry'])
1729 LB2_LINUX_TEST_RESULT([file_dentry], [
1730 AC_DEFINE(HAVE_FILE_DENTRY, 1, [kernel has file_dentry])
1732 ]) # LC_HAVE_FILE_DENTRY
1735 # LC_HAVE_INODE_LOCK
1737 # 4.5 introduced inode_lock
1739 AC_DEFUN([LC_SRC_HAVE_INODE_LOCK], [
1740 LB2_LINUX_TEST_SRC([inode_lock], [
1741 #include <linux/fs.h>
1746 AC_DEFUN([LC_HAVE_INODE_LOCK], [
1747 AC_MSG_CHECKING([if 'inode_lock' is defined])
1748 LB2_LINUX_TEST_RESULT([inode_lock], [
1749 AC_DEFINE(HAVE_INODE_LOCK, 1, [inode_lock is defined])
1751 ]) # LC_HAVE_INODE_LOCK
1754 # LC_HAVE_IOP_GET_LINK
1756 # 4.5 vfs replaced iop->follow_link with
1759 AC_DEFUN([LC_SRC_HAVE_IOP_GET_LINK], [
1760 LB2_LINUX_TEST_SRC([inode_ops_get_link], [
1761 #include <linux/fs.h>
1763 struct inode_operations iop;
1764 iop.get_link = NULL;
1767 AC_DEFUN([LC_HAVE_IOP_GET_LINK], [
1768 AC_MSG_CHECKING([if 'iop' has 'get_link'])
1769 LB2_LINUX_TEST_RESULT([inode_ops_get_link], [
1770 AC_DEFINE(HAVE_IOP_GET_LINK, 1, [have iop get_link])
1772 ]) # LC_HAVE_IOP_GET_LINK
1775 # LC_HAVE_IN_COMPAT_SYSCALL
1777 # 4.6 renamed is_compat_task to in_compat_syscall
1779 AC_DEFUN([LC_SRC_HAVE_IN_COMPAT_SYSCALL], [
1780 LB2_LINUX_TEST_SRC([in_compat_syscall], [
1781 #include <linux/compat.h>
1783 in_compat_syscall();
1786 AC_DEFUN([LC_HAVE_IN_COMPAT_SYSCALL], [
1787 AC_MSG_CHECKING([if 'in_compat_syscall' is defined])
1788 LB2_LINUX_TEST_RESULT([in_compat_syscall], [
1789 AC_DEFINE(HAVE_IN_COMPAT_SYSCALL, 1, [have in_compat_syscall])
1791 ]) # LC_HAVE_IN_COMPAT_SYSCALL
1794 # LC_HAVE_XATTR_HANDLER_INODE_PARAM
1796 # Kernel version 4.6 commit b296821a7c42fa58baa17513b2b7b30ae66f3336
1797 # and commit 5930122683dff58f0846b0f0405b4bd598a3ba6a added inode parameter
1798 # to xattr_handler functions
1800 AC_DEFUN([LC_SRC_HAVE_XATTR_HANDLER_INODE_PARAM], [
1801 LB2_LINUX_TEST_SRC([xattr_handler_inode_param], [
1802 #include <linux/xattr.h>
1804 const struct xattr_handler handler;
1806 ((struct xattr_handler *)0)->get(&handler, NULL, NULL, NULL, NULL, 0);
1807 ((struct xattr_handler *)0)->set(&handler, NULL, NULL, NULL, NULL, 0, 0);
1810 AC_DEFUN([LC_HAVE_XATTR_HANDLER_INODE_PARAM], [
1811 AC_MSG_CHECKING([if 'struct xattr_handler' functions have inode parameter])
1812 LB2_LINUX_TEST_RESULT([xattr_handler_inode_param], [
1813 AC_DEFINE(HAVE_XATTR_HANDLER_INODE_PARAM, 1, [needs inode parameter])
1815 ]) # LC_HAVE_XATTR_HANDLER_INODE_PARAM
1820 # Kernel version 4.6 commit 85c7f81041d57cfe9dc97f4680d5586b54534a39
1821 # introduced parallel lookups in the VFS layer. The inline function
1822 # d_in_lookup was added to notify when the same item was being queried
1825 AC_DEFUN([LC_SRC_D_IN_LOOKUP], [
1826 LB2_LINUX_TEST_SRC([d_in_lookup], [
1827 #include <linux/dcache.h>
1832 AC_DEFUN([LC_D_IN_LOOKUP], [
1833 AC_MSG_CHECKING([if 'd_in_lookup' is defined])
1834 LB2_LINUX_TEST_RESULT([d_in_lookup], [
1835 AC_DEFINE(HAVE_D_IN_LOOKUP, 1, [d_in_lookup is defined])
1840 # LC_LOCK_PAGE_MEMCG
1842 # Kernel version 4.6 adds lock_page_memcg(page)
1843 # Linux commit v5.15-12273-gab2f9d2d3626
1844 # mm: unexport {,un}lock_page_memcg
1846 AC_DEFUN([LC_SRC_LOCK_PAGE_MEMCG], [
1847 LB2_LINUX_TEST_SRC([lock_page_memcg], [
1848 #include <linux/memcontrol.h>
1850 lock_page_memcg(NULL);
1853 AC_DEFUN([LC_LOCK_PAGE_MEMCG], [
1854 AC_MSG_CHECKING([if 'lock_page_memcg' is defined])
1855 LB2_LINUX_TEST_RESULT([lock_page_memcg], [
1856 AC_DEFINE(HAVE_LOCK_PAGE_MEMCG, 1, [lock_page_memcg is defined])
1858 ]) # LC_LOCK_PAGE_MEMCG
1861 # LC_HAVE_DOWN_WRITE_KILLABLE
1863 # Kernel version v4.6-rc3-28-g916633a40370
1865 AC_DEFUN([LC_SRC_HAVE_DOWN_WRITE_KILLABLE], [
1866 LB2_LINUX_TEST_SRC([down_write_killable], [
1867 #include <linux/rwsem.h>
1869 struct rw_semaphore sem;
1873 rc = down_write_killable(&sem);
1877 AC_DEFUN([LC_HAVE_DOWN_WRITE_KILLABLE], [
1878 AC_MSG_CHECKING([if down_write_killable exists])
1879 LB2_LINUX_TEST_RESULT([down_write_killable], [
1880 AC_DEFINE(HAVE_DOWN_WRITE_KILLABLE, 1,
1881 [down_write_killable function exists])
1883 ]) # LC_HAVE_DOWN_WRITE_KILLABLE
1888 # Kernel version 4.7-rc5 commit 285b102d3b745f3c2c110c9c327741d87e64aacc
1889 # add new d_init to initialize dentry at allocation time
1891 AC_DEFUN([LC_SRC_D_INIT], [
1892 LB2_LINUX_TEST_SRC([d_init], [
1893 #include <linux/dcache.h>
1895 struct dentry_operations ops = { };
1898 rc = ops.d_init(NULL);
1901 AC_DEFUN([LC_D_INIT], [
1902 AC_MSG_CHECKING([if dentry operations supports 'd_init'])
1903 LB2_LINUX_TEST_RESULT([d_init], [
1904 AC_DEFINE(HAVE_D_INIT, 1, ['d_init' exists])
1911 # Kernel version 4.7 commit c8b8e32d700fe943a935e435ae251364d016c497
1912 # direct-io: eliminate the offset argument to ->direct_IO
1914 AC_DEFUN([LC_SRC_DIRECTIO_2ARGS], [
1915 LB2_LINUX_TEST_SRC([direct_io_2args], [
1916 #include <linux/fs.h>
1918 struct address_space_operations ops = { };
1919 struct iov_iter *iter = NULL;
1920 struct kiocb *iocb = NULL;
1923 rc = ops.direct_IO(iocb, iter);
1926 AC_DEFUN([LC_DIRECTIO_2ARGS], [
1927 AC_MSG_CHECKING([if '->direct_IO()' takes 2 arguments])
1928 LB2_LINUX_TEST_RESULT([direct_io_2args], [
1929 AC_DEFINE(HAVE_DIRECTIO_2ARGS, 1, [direct_IO has 2 arguments])
1931 ]) # LC_DIRECTIO_2ARGS
1934 # LC_GENERIC_WRITE_SYNC_2ARGS
1936 # Kernel version 4.7 commit dde0c2e79848298cc25621ad080d47f94dbd7cce
1937 # fs: add IOCB_SYNC and IOCB_DSYNC
1939 AC_DEFUN([LC_SRC_GENERIC_WRITE_SYNC_2ARGS], [
1940 LB2_LINUX_TEST_SRC([generic_write_sync_2args], [
1941 #include <linux/fs.h>
1943 struct kiocb *iocb = NULL;
1946 rc = generic_write_sync(iocb, 0);
1949 AC_DEFUN([LC_GENERIC_WRITE_SYNC_2ARGS], [
1950 AC_MSG_CHECKING([if 'generic_write_sync()' takes 2 arguments])
1951 LB2_LINUX_TEST_RESULT([generic_write_sync_2args], [
1952 AC_DEFINE(HAVE_GENERIC_WRITE_SYNC_2ARGS, 1,
1953 [generic_write_sync has 2 arguments])
1955 ]) # LC_GENERIC_WRITE_SYNC_2ARGS
1958 # LC_FOP_ITERATE_SHARED
1960 # Kernel v4.6-rc3-29-g6192269 adds iterate_shared method to file_operations
1962 AC_DEFUN([LC_SRC_FOP_ITERATE_SHARED], [
1963 LB2_LINUX_TEST_SRC([fop_iterate_shared], [
1964 #include <linux/fs.h>
1966 struct file_operations fop;
1967 fop.iterate_shared = NULL;
1970 AC_DEFUN([LC_FOP_ITERATE_SHARED], [
1971 AC_MSG_CHECKING([if 'file_operations' has 'iterate_shared'])
1972 LB2_LINUX_TEST_RESULT([fop_iterate_shared], [
1973 AC_DEFINE(HAVE_FOP_ITERATE_SHARED, 1,
1974 [file_operations has iterate_shared])
1976 ]) # LC_FOP_ITERATE_SHARED
1979 # LC_EXPORT_DEFAULT_FILE_SPLICE_READ
1981 # 4.8-rc8 commit 82c156f853840645604acd7c2cebcb75ed1b6652 switched
1982 # generic_file_splice_read() to using ->read_iter. We can test this
1983 # change since default_file_splice_read() is no longer exported.
1985 AC_DEFUN([LC_EXPORT_DEFAULT_FILE_SPLICE_READ], [
1986 LB_CHECK_EXPORT([default_file_splice_read], [fs/splice.c],
1987 [AC_DEFINE(HAVE_DEFAULT_FILE_SPLICE_READ_EXPORT, 1,
1988 [default_file_splice_read is exported])])
1989 ]) # LC_EXPORT_DEFAULT_FILE_SPLCE_READ
1992 # LC_HAVE_POSIX_ACL_VALID_USER_NS
1994 # 4.8 posix_acl_valid takes struct user_namespace
1996 AC_DEFUN([LC_SRC_HAVE_POSIX_ACL_VALID_USER_NS], [
1997 LB2_LINUX_TEST_SRC([posix_acl_valid], [
1998 #include <linux/fs.h>
1999 #include <linux/posix_acl.h>
2001 posix_acl_valid((struct user_namespace*)NULL, (const struct posix_acl*)NULL);
2004 AC_DEFUN([LC_HAVE_POSIX_ACL_VALID_USER_NS], [
2005 AC_MSG_CHECKING([if 'posix_acl_valid' takes 'struct user_namespace'])
2006 LB2_LINUX_TEST_RESULT([posix_acl_valid], [
2007 AC_DEFINE(HAVE_POSIX_ACL_VALID_USER_NS, 1,
2008 [posix_acl_valid takes struct user_namespace])
2010 ]) # LC_HAVE_POSIX_ACL_VALID_USER_NS
2013 # LC_D_COMPARE_4ARGS
2015 # Kernel version 4.8 commit 6fa67e707559303e086303aeecc9e8b91ef497d5
2016 # get rid of 'parent' argument of ->d_compare()
2018 AC_DEFUN([LC_SRC_D_COMPARE_4ARGS], [
2019 LB2_LINUX_TEST_SRC([d_compare_4args], [
2020 #include <linux/dcache.h>
2022 ((struct dentry_operations*)0)->d_compare(NULL,0,NULL,NULL);
2025 AC_DEFUN([LC_D_COMPARE_4ARGS], [
2026 AC_MSG_CHECKING([if 'd_compare' taken 4 arguments])
2027 LB2_LINUX_TEST_RESULT([d_compare_4args], [
2028 AC_DEFINE(HAVE_D_COMPARE_4ARGS, 1,
2029 [d_compare need 4 arguments])
2031 ]) # LC_D_COMPARE_4ARGS
2034 # LC_FULL_NAME_HASH_3ARGS
2036 # Kernel version 4.8 commit 8387ff2577eb9ed245df9a39947f66976c6bcd02
2037 # vfs: make the string hashes salt the hash
2039 AC_DEFUN([LC_SRC_FULL_NAME_HASH_3ARGS], [
2040 LB2_LINUX_TEST_SRC([full_name_hash_3args], [
2041 #include <linux/stringhash.h>
2044 hash = full_name_hash(NULL,NULL,0);
2047 AC_DEFUN([LC_FULL_NAME_HASH_3ARGS], [
2048 AC_MSG_CHECKING([if 'full_name_hash' taken 3 arguments])
2049 LB2_LINUX_TEST_RESULT([full_name_hash_3args], [
2050 AC_DEFINE(HAVE_FULL_NAME_HASH_3ARGS, 1,
2051 [full_name_hash need 3 arguments])
2053 ]) # LC_FULL_NAME_HASH_3ARGS
2056 # LC_STRUCT_POSIX_ACL_XATTR
2058 # Kernel version 4.8 commit 2211d5ba5c6c4e972ba6dbc912b2897425ea6621
2059 # posix_acl: xattr representation cleanups
2061 AC_DEFUN([LC_SRC_STRUCT_POSIX_ACL_XATTR], [
2062 LB2_LINUX_TEST_SRC([struct_posix_acl_xattr], [
2063 #include <linux/fs.h>
2064 #include <linux/posix_acl_xattr.h>
2066 struct posix_acl_xattr_header *h = NULL;
2067 struct posix_acl_xattr_entry *e;
2068 e = (void *)(h + 1);
2071 AC_DEFUN([LC_STRUCT_POSIX_ACL_XATTR], [
2072 AC_MSG_CHECKING([if 'struct posix_acl_xattr_{header,entry}' defined])
2073 LB2_LINUX_TEST_RESULT([struct_posix_acl_xattr], [
2074 AC_DEFINE(HAVE_STRUCT_POSIX_ACL_XATTR, 1,
2075 [struct posix_acl_xattr_{header,entry} defined])
2077 ]) # LC_STRUCT_POSIX_ACL_XATTR
2082 # Kernel version 4.8 commit fd50ecaddf8372a1d96e0daeaac0f93cf04e4d42
2083 # removed {get,set,remove}xattr inode operations
2085 AC_DEFUN([LC_SRC_IOP_XATTR], [
2086 LB2_LINUX_TEST_SRC([inode_ops_xattr], [
2087 #include <linux/fs.h>
2089 struct inode_operations iop;
2090 iop.setxattr = NULL;
2091 iop.getxattr = NULL;
2092 iop.removexattr = NULL;
2095 AC_DEFUN([LC_IOP_XATTR], [
2096 AC_MSG_CHECKING([if 'inode_operations' has {get,set,remove}xattr members])
2097 LB2_LINUX_TEST_RESULT([inode_ops_xattr], [
2098 AC_DEFINE(HAVE_IOP_XATTR, 1,
2099 [inode_operations has {get,set,remove}xattr members])
2106 # Kernel version 4.9 commit 81243eacfa400f5f7b89f4c2323d0de9982bb0fb
2107 # cred: simpler, 1D supplementary groups
2109 AC_DEFUN([LC_SRC_GROUP_INFO_GID], [
2110 LB2_LINUX_TEST_SRC([group_info_gid], [
2111 #include <linux/cred.h>
2114 p = ((struct group_info *)0)->gid;
2117 AC_DEFUN([LC_GROUP_INFO_GID], [
2118 AC_MSG_CHECKING([if 'struct group_info' has member 'gid'])
2119 LB2_LINUX_TEST_RESULT([group_info_gid], [
2120 AC_DEFINE(HAVE_GROUP_INFO_GID, 1,
2121 [struct group_info has member gid])
2123 ]) # LC_GROUP_INFO_GID
2128 # Kernel version 4.9 commit 5d6c31910bc0713e37628dc0ce677dcb13c8ccf4
2129 # added __vfs_{get,set,remove}xattr helpers
2131 AC_DEFUN([LC_SRC_VFS_SETXATTR], [
2132 LB2_LINUX_TEST_SRC([vfs_setxattr], [
2133 #include <linux/xattr.h>
2135 __vfs_setxattr(NULL, NULL, NULL, NULL, 0, 0);
2138 AC_DEFUN([LC_VFS_SETXATTR], [
2139 AC_MSG_CHECKING([if '__vfs_setxattr' helper is available])
2140 LB2_LINUX_TEST_RESULT([vfs_setxattr], [
2141 AC_DEFINE(HAVE_VFS_SETXATTR, 1, ['__vfs_setxattr' is available])
2143 ]) # LC_VFS_SETXATTR
2146 # LC_POSIX_ACL_UPDATE_MODE
2148 # Kernel version 4.9 commit 073931017b49d9458aa351605b43a7e34598caef
2149 # posix_acl: Clear SGID bit when setting file permissions
2151 AC_DEFUN([LC_SRC_POSIX_ACL_UPDATE_MODE], [
2152 LB2_LINUX_TEST_SRC([posix_acl_update_mode], [
2153 #include <linux/fs.h>
2154 #include <linux/posix_acl.h>
2156 posix_acl_update_mode(NULL, NULL, NULL);
2159 AC_DEFUN([LC_POSIX_ACL_UPDATE_MODE], [
2160 AC_MSG_CHECKING([if 'posix_acl_update_mode' exists])
2161 LB2_LINUX_TEST_RESULT([posix_acl_update_mode], [
2162 AC_DEFINE(HAVE_POSIX_ACL_UPDATE_MODE, 1,
2163 ['posix_acl_update_mode' is available])
2165 ]) # LC_POSIX_ACL_UPDATE_MODE
2168 # LC_HAVE_BDI_IO_PAGES
2170 # Kernel version 4.9 commit 9491ae4aade6814afcfa67f4eb3e3342c2b39750
2171 # mm: don't cap request size based on read-ahead setting
2172 # This patch introduces a bdi hint, io_pages.
2174 AC_DEFUN([LC_SRC_HAVE_BDI_IO_PAGES], [
2175 LB2_LINUX_TEST_SRC([bdi_has_io_pages], [
2176 #include <linux/backing-dev.h>
2178 struct backing_dev_info info;
2183 AC_DEFUN([LC_HAVE_BDI_IO_PAGES], [
2184 AC_MSG_CHECKING([if 'struct backing_dev_info' has 'io_pages' field])
2185 LB2_LINUX_TEST_RESULT([bdi_has_io_pages], [
2186 AC_DEFINE(HAVE_BDI_IO_PAGES, 1,
2187 [backing_dev_info has io_pages])
2189 ]) # LC_HAVE_BDI_IO_PAGES
2192 # LC_IOP_GENERIC_READLINK
2194 # Kernel version 4.10 commit dfeef68862edd7d4bafe68ef7aeb5f658ef24bb5
2195 # removed generic_readlink from individual file systems
2197 AC_DEFUN([LC_SRC_IOP_GENERIC_READLINK], [
2198 LB2_LINUX_TEST_SRC([inode_ops_readlink], [
2199 #include <linux/fs.h>
2201 struct inode_operations iop;
2202 iop.readlink = generic_readlink;
2205 AC_DEFUN([LC_IOP_GENERIC_READLINK], [
2206 AC_MSG_CHECKING([if 'generic_readlink' still exist])
2207 LB2_LINUX_TEST_RESULT([inode_ops_readlink], [
2208 AC_DEFINE(HAVE_IOP_GENERIC_READLINK, 1,
2209 [generic_readlink has been removed])
2211 ]) # LC_IOP_GENERIC_READLINK
2214 # LC_HAVE_VM_FAULT_ADDRESS
2216 # Kernel version 4.10 commit 1a29d85eb0f19b7d8271923d8917d7b4f5540b3e
2217 # removed virtual_address field. Need to use address field instead
2219 AC_DEFUN([LC_SRC_HAVE_VM_FAULT_ADDRESS], [
2220 LB2_LINUX_TEST_SRC([vm_fault_address], [
2221 #include <linux/mm.h>
2223 struct vm_fault vmf = { 0 };
2224 unsigned long addr = (unsigned long)vmf.address;
2228 AC_DEFUN([LC_HAVE_VM_FAULT_ADDRESS], [
2229 AC_MSG_CHECKING([if 'struct vm_fault' replaced virtual_address with address field])
2230 LB2_LINUX_TEST_RESULT([vm_fault_address], [
2231 AC_DEFINE(HAVE_VM_FAULT_ADDRESS, 1,
2232 [virtual_address has been replaced by address field])
2234 ]) # LC_HAVE_VM_FAULT_ADDRESS
2237 # LC_INODEOPS_ENHANCED_GETATTR
2239 # Kernel version 4.11 commit a528d35e8bfcc521d7cb70aaf03e1bd296c8493f
2240 # expanded getattr to be able to get more stat information.
2242 AC_DEFUN([LC_SRC_INODEOPS_ENHANCED_GETATTR], [
2243 LB2_LINUX_TEST_SRC([getattr_path], [
2244 #include <linux/fs.h>
2248 ((struct inode_operations *)1)->getattr(&path, NULL, 0, 0);
2251 AC_DEFUN([LC_INODEOPS_ENHANCED_GETATTR], [
2252 AC_MSG_CHECKING([if 'inode_operations' getattr member can gather advance stats])
2253 LB2_LINUX_TEST_RESULT([getattr_path], [
2254 AC_DEFINE(HAVE_INODEOPS_ENHANCED_GETATTR, 1,
2255 [inode_operations .getattr member function can gather advance stats])
2257 ]) # LC_INODEOPS_ENHANCED_GETATTR
2260 # LC_VM_OPERATIONS_REMOVE_VMF_ARG
2262 # Kernel version 4.11 commit 11bac80004499ea59f361ef2a5516c84b6eab675
2263 # removed struct vm_area_struct as an argument for vm_operations since
2264 # in the same kernel version struct vma_area_struct was folded into
2267 AC_DEFUN([LC_SRC_VM_OPERATIONS_REMOVE_VMF_ARG], [
2268 LB2_LINUX_TEST_SRC([vm_operations_no_vm_area_struct], [
2269 #include <linux/mm.h>
2271 struct vm_fault vmf;
2273 ((struct vm_operations_struct *)0)->fault(&vmf);
2274 ((struct vm_operations_struct *)0)->page_mkwrite(&vmf);
2277 AC_DEFUN([LC_VM_OPERATIONS_REMOVE_VMF_ARG], [
2278 AC_MSG_CHECKING([if 'struct vm_operations' removed struct vm_area_struct])
2279 LB2_LINUX_TEST_RESULT([vm_operations_no_vm_area_struct], [
2280 AC_DEFINE(HAVE_VM_OPS_USE_VM_FAULT_ONLY, 1,
2281 ['struct vm_operations' remove struct vm_area_struct argument])
2283 ]) # LC_VM_OPERATIONS_REMOVE_VMF_ARG
2286 # LC_HAVE_KEY_USAGE_REFCOUNT
2288 # Kernel version 4.11 commit fff292914d3a2f1efd05ca71c2ba72a3c663201e
2289 # converted key.usage from atomic_t to refcount_t.
2291 AC_DEFUN([LC_SRC_HAVE_KEY_USAGE_REFCOUNT], [
2292 LB2_LINUX_TEST_SRC([key_usage_refcount], [
2293 #include <linux/key.h>
2295 struct key key = { };
2297 refcount_read(&key.usage);
2300 AC_DEFUN([LC_HAVE_KEY_USAGE_REFCOUNT], [
2301 AC_MSG_CHECKING([if 'key.usage' is refcount_t])
2302 LB2_LINUX_TEST_RESULT([key_usage_refcount], [
2303 AC_DEFINE(HAVE_KEY_USAGE_REFCOUNT, 1,
2304 [key.usage is of type refcount_t])
2306 ]) #LC_HAVE_KEY_USAGE_REFCOUNT
2309 # LC_HAVE_CRYPTO_MAX_ALG_NAME_128
2311 # Kernel version 4.11 commit f437a3f477cce402dbec6537b29e9e33962c9f73
2312 # switched CRYPTO_MAX_ALG_NAME from 64 to 128.
2314 AC_DEFUN([LC_SRC_HAVE_CRYPTO_MAX_ALG_NAME_128], [
2315 LB2_LINUX_TEST_SRC([crypto_max_alg_name], [
2316 #include <linux/crypto.h>
2318 #if CRYPTO_MAX_ALG_NAME != 128
2323 AC_DEFUN([LC_HAVE_CRYPTO_MAX_ALG_NAME_128], [
2324 AC_MSG_CHECKING([if 'CRYPTO_MAX_ALG_NAME' is 128])
2325 LB2_LINUX_TEST_RESULT([crypto_max_alg_name], [
2326 AC_DEFINE(HAVE_CRYPTO_MAX_ALG_NAME_128, 1,
2327 ['CRYPTO_MAX_ALG_NAME' is 128])
2329 ]) # LC_HAVE_CRYPTO_MAX_ALG_NAME_128
2332 # Kernel version 4.12 commit 47f38c539e9a42344ff5a664942075bd4df93876
2333 # CURRENT_TIME is not 64 bit time safe so it was replaced with
2336 AC_DEFUN([LC_SRC_CURRENT_TIME], [
2337 LB2_LINUX_TEST_SRC([current_time], [
2338 #include <linux/fs.h>
2342 attr.ia_atime = current_time(NULL);
2345 AC_DEFUN([LC_CURRENT_TIME], [
2346 AC_MSG_CHECKING([if CURRENT_TIME has been replaced with current_time])
2347 LB2_LINUX_TEST_RESULT([current_time], [
2348 AC_DEFINE(HAVE_CURRENT_TIME, 1,
2349 [current_time() has replaced CURRENT_TIME])
2351 ]) # LC_CURRENT_TIME
2354 # LC_HAVE_GET_INODE_USAGE
2356 # Kernel version v4.12-rc2-43-g7a9ca53aea10
2358 AC_DEFUN([LC_SRC_HAVE_GET_INODE_USAGE], [
2359 LB2_LINUX_TEST_SRC([get_inode_usage], [
2361 #include <linux/quota.h>
2363 struct dquot_operations ops = { };
2365 ops.get_inode_usage(NULL, NULL);
2368 AC_DEFUN([LC_HAVE_GET_INODE_USAGE], [
2369 AC_MSG_CHECKING([if get_inode_usage exists])
2370 LB2_LINUX_TEST_RESULT([get_inode_usage], [
2371 AC_DEFINE(HAVE_GET_INODE_USAGE, 1,
2372 [get_inode_usage function exists])
2374 ]) # LC_HAVE_GET_INODE_USAGE
2377 # LC_SUPER_SETUP_BDI_NAME
2379 # Kernel version 4.12 commit 9594caf216dc0fe3e318b34af0127276db661241
2380 # unified bdi handling
2382 AC_DEFUN([LC_SRC_SUPER_SETUP_BDI_NAME], [
2383 LB2_LINUX_TEST_SRC([super_setup_bdi_name], [
2384 #include <linux/fs.h>
2386 super_setup_bdi_name(NULL, "lustre");
2389 AC_DEFUN([LC_SUPER_SETUP_BDI_NAME], [
2390 AC_MSG_CHECKING([if 'super_setup_bdi_name' exist])
2391 LB2_LINUX_TEST_RESULT([super_setup_bdi_name], [
2392 AC_DEFINE(HAVE_SUPER_SETUP_BDI_NAME, 1,
2393 ['super_setup_bdi_name' is available])
2395 ]) # LC_SUPER_SETUP_BDI_NAME
2400 # 4.12 replace bi_error to bi_status
2402 AC_DEFUN([LC_SRC_BI_STATUS], [
2403 LB2_LINUX_TEST_SRC([bi_status], [
2404 #include <linux/blk_types.h>
2406 ((struct bio *)0)->bi_status = 0;
2409 AC_DEFUN([LC_BI_STATUS], [
2410 AC_MSG_CHECKING([if 'bi_status' exist])
2411 LB2_LINUX_TEST_RESULT([bi_status], [
2412 AC_DEFINE(HAVE_BI_STATUS, 1, ['bi_status' is available])
2417 # LC_PAGEVEC_INIT_ONE_PARAM
2419 # 4.14 pagevec_init takes one parameter
2421 AC_DEFUN([LC_SRC_PAGEVEC_INIT_ONE_PARAM], [
2422 LB2_LINUX_TEST_SRC([pagevec_init], [
2423 #include <linux/pagevec.h>
2428 AC_DEFUN([LC_PAGEVEC_INIT_ONE_PARAM], [
2429 AC_MSG_CHECKING([if 'pagevec_init' takes one parameter])
2430 LB2_LINUX_TEST_RESULT([pagevec_init], [
2431 AC_DEFINE(HAVE_PAGEVEC_INIT_ONE_PARAM, 1,
2432 ['pagevec_init' takes one parameter])
2434 ]) # LC_PAGEVEC_INIT_ONE_PARAM
2439 # 4.14 replaced bi_bdev to bi_disk
2441 AC_DEFUN([LC_SRC_BI_BDEV], [
2442 LB2_LINUX_TEST_SRC([bi_bdev], [
2443 #include <linux/bio.h>
2445 ((struct bio *)0)->bi_bdev = NULL;
2448 AC_DEFUN([LC_BI_BDEV], [
2449 AC_MSG_CHECKING([if 'bi_bdev' exist])
2450 LB2_LINUX_TEST_RESULT([bi_bdev], [
2451 AC_DEFINE(HAVE_BI_BDEV, 1, ['bi_bdev' is available])
2456 # LC_INTERVAL_TREE_CACHED
2458 # 4.14 f808c13fd3738948e10196496959871130612b61
2459 # switched INTERVAL_TREE_DEFINE to use cached RB_Trees.
2461 AC_DEFUN([LC_SRC_INTERVAL_TREE_CACHED], [
2462 LB2_LINUX_TEST_SRC([itree_cached], [
2463 #include <linux/interval_tree_generic.h>
2464 struct foo { struct rb_node rb; int last; int a,b;};
2465 #define START(n) ((n)->a)
2466 #define LAST(n) ((n)->b)
2467 struct rb_root_cached tree;
2468 INTERVAL_TREE_DEFINE(struct foo, rb, int, last,
2469 START, LAST, , foo);
2471 foo_insert(NULL, &tree);
2474 AC_DEFUN([LC_INTERVAL_TREE_CACHED], [
2475 AC_MSG_CHECKING([if interval_trees use rb_tree_cached])
2476 LB2_LINUX_TEST_RESULT([itree_cached], [
2477 AC_DEFINE(HAVE_INTERVAL_TREE_CACHED, 1,
2478 [interval trees use rb_tree_cached])
2480 ]) # LC_INTERVAL_TREE_CACHED
2485 # 4.14 introduced IS_ENCRYPTED and S_ENCRYPTED
2487 AC_DEFUN([LC_IS_ENCRYPTED], [
2488 LB_CHECK_COMPILE([if IS_ENCRYPTED is defined],
2490 #include <linux/fs.h>
2492 (void)IS_ENCRYPTED((struct inode *)1);
2494 has_is_encrypted="yes"
2496 ]) # LC_IS_ENCRYPTED used by LC_CONFIG_CRYPTO
2501 # kernel 4.17 commit b93b016313b3ba8003c3b8bb71f569af91f19fc7
2503 AC_DEFUN([LC_SRC_I_PAGES], [
2504 LB2_LINUX_TEST_SRC([i_pages], [
2505 #include <linux/fs.h>
2507 struct address_space mapping = {};
2510 i_pages = &mapping.i_pages;
2513 AC_DEFUN([LC_I_PAGES], [
2514 AC_MSG_CHECKING([if struct address_space has i_pages])
2515 LB2_LINUX_TEST_RESULT([i_pages], [
2516 AC_DEFINE(HAVE_I_PAGES, 1, [struct address_space has i_pages])
2523 # kernel 4.17 commit 3d3539018d2cbd12e5af4a132636ee7fd8d43ef0
2524 # mm: create the new vm_fault_t type
2526 AC_DEFUN([LC_SRC_VM_FAULT_T], [
2527 LB2_LINUX_TEST_SRC([vm_fault_t], [
2528 #include <linux/mm_types.h>
2530 vm_fault_t x = VM_FAULT_SIGBUS;
2534 AC_DEFUN([LC_VM_FAULT_T], [
2535 AC_MSG_CHECKING([if vm_fault_t type exists])
2536 LB2_LINUX_TEST_RESULT([vm_fault_t], [
2537 AC_DEFINE(HAVE_VM_FAULT_T, 1, [if vm_fault_t type exists])
2544 # kernel 4.17 commit 3d3539018d2cbd12e5af4a132636ee7fd8d43ef0
2545 # mm: VM_FAULT_RETRY is defined in enum vm_fault_reason
2547 AC_DEFUN([LC_SRC_VM_FAULT_RETRY], [
2548 LB2_LINUX_TEST_SRC([VM_FAULT_RETRY], [
2549 #include <linux/mm.h>
2551 #ifndef VM_FAULT_RETRY
2557 AC_DEFUN([LC_VM_FAULT_RETRY], [
2558 AC_MSG_CHECKING([if VM_FAULT_RETRY is defined])
2559 LB2_LINUX_TEST_RESULT([VM_FAULT_RETRY], [
2560 AC_DEFINE(HAVE_VM_FAULT_RETRY, 1,
2561 [if VM_FAULT_RETRY is defined])
2563 ]) # LC_VM_FAULT_RETRY
2566 # LC_ALLOC_FILE_PSEUDO
2568 # kernel 4.18-rc1 commit d93aa9d82aea80b80f225dbf9c7986df444d8106
2569 # new wrapper: alloc_file_pseudo()
2571 AC_DEFUN([LC_SRC_ALLOC_FILE_PSEUDO], [
2572 LB2_LINUX_TEST_SRC([alloc_file_pseudo], [
2573 #include <linux/file.h>
2576 file = alloc_file_pseudo(NULL, NULL, "[test]",
2580 AC_DEFUN([LC_ALLOC_FILE_PSEUDO], [
2581 AC_MSG_CHECKING([if 'alloc_file_pseudo' is defined])
2582 LB2_LINUX_TEST_RESULT([alloc_file_pseudo], [
2583 AC_DEFINE(HAVE_ALLOC_FILE_PSEUDO, 1,
2584 ['alloc_file_pseudo' exist])
2586 ]) # LC_ALLOC_FILE_PSEUDO
2589 # LC_INODE_TIMESPEC64
2591 # kernel 4.17-rc7 commit 8efd6894ff089adeeac7cb9f32125b85d963d1bc
2592 # fs: add timespec64_truncate()
2593 # kernel 4.18 commit 95582b00838837fc07e042979320caf917ce3fe6
2594 # inode timestamps switched to timespec64
2595 # kernel 4.19-rc2 commit 976516404ff3fab2a8caa8bd6f5efc1437fed0b8
2596 # y2038: remove unused time interfaces
2600 # When inode times are timespec64 stop using the deprecated
2603 # kernel v5.5-rc1-6-gba70609d5ec6 ba70609d5ec664a8f36ba1c857fcd97a478adf79
2604 # fs: Delete timespec64_trunc()
2606 AC_DEFUN([LC_SRC_INODE_TIMESPEC64], [
2607 LB2_LINUX_TEST_SRC([inode_timespec64], [
2608 #include <linux/fs.h>
2610 struct inode *inode = NULL;
2611 struct timespec64 ts = {0, 1};
2613 inode->i_atime = ts;
2617 AC_DEFUN([LC_INODE_TIMESPEC64], [
2618 AC_MSG_CHECKING([if inode timestamps are struct timespec64])
2619 LB2_LINUX_TEST_RESULT([inode_timespec64], [
2620 AC_DEFINE(HAVE_INODE_TIMESPEC64, 1,
2621 [inode times are using timespec64])
2623 ]) # LC_INODE_TIMESPEC64
2626 # LC_RADIX_TREE_TAG_SET
2628 # kernel 4.20 commit v4.19-rc5-248-g9b89a0355144
2629 # xarray: Add XArray marks - replaced radix_tree_tag_set
2631 AC_DEFUN([LC_SRC_RADIX_TREE_TAG_SET], [
2632 LB2_LINUX_TEST_SRC([radix_tree_tag_set], [
2633 #include <linux/fs.h>
2634 #include <linux/radix-tree.h>
2636 radix_tree_tag_set(NULL, 0, PAGECACHE_TAG_DIRTY);
2639 AC_DEFUN([LC_RADIX_TREE_TAG_SET], [
2640 AC_MSG_CHECKING([if 'radix_tree_tag_set' exists])
2641 LB2_LINUX_TEST_RESULT([radix_tree_tag_set], [
2642 AC_DEFINE(HAVE_RADIX_TREE_TAG_SET, 1,
2643 [radix_tree_tag_set exists])
2645 ]) # LC_RADIX_TREE_TAG_SET
2648 # LC_UAPI_LINUX_MOUNT_H
2650 # kernel 4.20 commit e262e32d6bde0f77fb0c95d977482fc872c51996
2651 # vfs: Suppress MS_* flag defs within the kernel ...
2653 AC_DEFUN([LC_SRC_UAPI_LINUX_MOUNT_H], [
2654 LB2_LINUX_TEST_SRC([uapi_linux_mount], [
2655 #include <uapi/linux/mount.h>
2661 AC_DEFUN([LC_UAPI_LINUX_MOUNT_H], [
2662 AC_MSG_CHECKING([if MS_RDONLY was moved to uapi/linux/mount.h])
2663 LB2_LINUX_TEST_RESULT([uapi_linux_mount], [
2664 AC_DEFINE(HAVE_UAPI_LINUX_MOUNT_H, 1,
2665 [if MS_RDONLY was moved to uapi/linux/mount.h])
2667 ]) # LC_UAPI_LINUX_MOUNT_H
2670 # LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK
2672 # kernel 4.20 commit 1863d77f15da0addcd293a1719fa5d3ef8cde3ca
2673 # SUNRPC: Replace the cache_detail->hash_lock with a regular spinlock
2675 # Now that the reader functions are all RCU protected, use a regular
2676 # spinlock rather than a reader/writer lock.
2678 AC_DEFUN([LC_SRC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK], [
2679 LB2_LINUX_TEST_SRC([hash_lock_isa_spinlock_t], [
2680 #include <linux/sunrpc/cache.h>
2682 spinlock_t *lock = &(((struct cache_detail *)0)->hash_lock);
2686 AC_DEFUN([LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK], [
2687 AC_MSG_CHECKING([if cache_detail->hash_lock is a spinlock])
2688 LB2_LINUX_TEST_RESULT([hash_lock_isa_spinlock_t], [
2689 AC_DEFINE(HAVE_CACHE_HASH_SPINLOCK, 1,
2690 [if cache_detail->hash_lock is a spinlock])
2692 ]) # LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK
2695 # LC_GENL_FAMILY_HAS_RESV_START_OP
2697 # Linux v5.0-11693-g3b0f31f2b8c9
2698 # genetlink: make policy common to family
2700 AC_DEFUN([LC_SRC_GENL_FAMILY_HAS_RESV_START_OP], [
2701 LB2_LINUX_TEST_SRC([genl_family_has_resv_start_op], [
2702 #include <net/genetlink.h>
2704 static const struct genl_family family = {
2705 .resv_start_op = 42,
2710 AC_DEFUN([LC_GENL_FAMILY_HAS_RESV_START_OP], [
2711 AC_MSG_CHECKING([if struct genl_family has resv_start_op member])
2712 LB2_LINUX_TEST_RESULT([genl_family_has_resv_start_op], [
2713 AC_DEFINE(GENL_FAMILY_HAS_RESV_START_OP, 1,
2714 [struct genl_family has resv_start_op member])
2716 ]) # LC_GENL_FAMILY_HAS_RESV_START_OP
2719 # LC_HAVE_BVEC_ITER_ALL
2721 # kernel 5.1 commit 6dc4f100c175dd0511ae8674786e7c9006cdfbfa
2722 # block: allow bio_for_each_segment_all() to iterate over multi-page bvec
2724 AC_DEFUN([LC_SRC_HAVE_BVEC_ITER_ALL], [
2725 LB2_LINUX_TEST_SRC([struct_bvec_iter_all], [
2726 #include <linux/bvec.h>
2728 struct bvec_iter_all iter;
2732 AC_DEFUN([LC_HAVE_BVEC_ITER_ALL], [
2733 AC_MSG_CHECKING([if bvec_iter_all exists for multi-page bvec iternation])
2734 LB2_LINUX_TEST_RESULT([struct_bvec_iter_all], [
2735 AC_DEFINE(HAVE_BVEC_ITER_ALL, 1,
2736 [if bvec_iter_all exists for multi-page bvec iternation])
2738 ]) # LC_HAVE_BVEC_ITER_ALL
2741 # LC_ACCOUNT_PAGE_DIRTIED
2743 # After 5.2 kernel page dirtied is not exported
2745 AC_DEFUN([LC_ACCOUNT_PAGE_DIRTIED], [
2746 LB_CHECK_EXPORT([account_page_dirtied], [mm/page-writeback.c],
2747 [AC_DEFINE(HAVE_ACCOUNT_PAGE_DIRTIED_EXPORT, 1,
2748 [account_page_dirtied is exported])])
2749 ]) # LC_ACCOUNT_PAGE_DIRTIED
2752 # LC_KEYRING_SEARCH_4ARGS
2754 # Kernel 5.2 commit dcf49dbc8077
2755 # keys: Add a 'recurse' flag for keyring searches
2757 AC_DEFUN([LC_SRC_KEYRING_SEARCH_4ARGS], [
2758 LB2_LINUX_TEST_SRC([keyring_search_4args], [
2759 #include <linux/key.h>
2762 keyring_search(keyring, NULL, NULL, false);
2765 AC_DEFUN([LC_KEYRING_SEARCH_4ARGS], [
2766 AC_MSG_CHECKING([if 'keyring_search' has 4 args])
2767 LB2_LINUX_TEST_RESULT([keyring_search_4args], [
2768 AC_DEFINE(HAVE_KEYRING_SEARCH_4ARGS, 1,
2769 [keyring_search has 4 args])
2771 ]) # LC_KEYRING_SEARCH_4ARGS
2774 # LC_BIO_BI_PHYS_SEGMENTS
2776 # kernel 5.3-rc1 commit 14ccb66b3f585b2bc21e7256c96090abed5a512c
2777 # block: remove the bi_phys_segments field in struct bio
2779 AC_DEFUN([LC_SRC_BIO_BI_PHYS_SEGMENTS], [
2780 LB2_LINUX_TEST_SRC([bye_bio_bi_phys_segments], [
2781 #include <linux/bio.h>
2783 struct bio *bio = NULL;
2784 bio->bi_phys_segments++;
2787 AC_DEFUN([LC_BIO_BI_PHYS_SEGMENTS], [
2788 AC_MSG_CHECKING([if struct bio has bi_phys_segments member])
2789 LB2_LINUX_TEST_RESULT([bye_bio_bi_phys_segments], [
2790 AC_DEFINE(HAVE_BIO_BI_PHYS_SEGMENTS, 1,
2791 [struct bio has bi_phys_segments member])
2793 ]) # LC_BIO_BI_PHYS_SEGMENTS
2796 # LC_LM_COMPARE_OWNER_EXISTS
2798 # kernel 5.3-rc3 commit f85d93385e9fe6886a751f647f6812a89bf6bee3
2799 # locks: Cleanup lm_compare_owner and lm_owner_key
2800 # removed lm_compare_owner
2802 AC_DEFUN([LC_SRC_LM_COMPARE_OWNER_EXISTS], [
2803 LB2_LINUX_TEST_SRC([lock_manager_ops_lm_compare_owner], [
2804 #include <linux/fs.h>
2806 struct lock_manager_operations lm_ops;
2807 lm_ops.lm_compare_owner = NULL;
2810 AC_DEFUN([LC_LM_COMPARE_OWNER_EXISTS], [
2811 AC_MSG_CHECKING([if lock_manager_operations has lm_compare_owner])
2812 LB2_LINUX_TEST_RESULT([lock_manager_ops_lm_compare_owner], [
2813 AC_DEFINE(HAVE_LM_COMPARE_OWNER, 1,
2814 [lock_manager_operations has lm_compare_owner])
2816 ]) # LC_LM_COMPARE_OWNER_EXISTS
2819 # LC_FSCRYPT_SUPPORT
2821 # 5.4 introduced fscrypt encryption policies v2
2823 AC_DEFUN([LC_FSCRYPT_SUPPORT], [
2824 LB_CHECK_COMPILE([for fscrypt in-kernel support],
2826 #define __FS_HAS_ENCRYPTION 0
2827 #include <linux/fscrypt.h>
2829 fscrypt_ioctl_get_policy_ex(NULL, NULL);
2831 has_fscrypt_support="yes"
2833 ]) # LC_FSCRYPT_SUPPORT used by LC_CONFIG_CRYPTO
2836 # LC_FSCRYPT_DIGESTED_NAME
2838 # Kernel 5.5-rc4 edc440e3d27fb31e6f9663cf413fad97d714c060
2839 # improved the format of no-key names. This results in the
2840 # removal of FSCRYPT_FNAME_DIGEST and FSCRYPT_FNAME_DIGEST_SIZE.
2842 AC_DEFUN([LC_SRC_FSCRYPT_DIGESTED_NAME], [
2843 LB2_LINUX_TEST_SRC([fscrypt_digested_name], [
2844 #include <linux/fscrypt.h>
2846 struct fscrypt_digested_name fname;
2851 AC_DEFUN([LC_FSCRYPT_DIGESTED_NAME], [
2852 AC_MSG_CHECKING([if fscrypt has 'struct fscrypt_digested_name'])
2853 LB2_LINUX_TEST_RESULT([fscrypt_digested_name], [
2854 AC_DEFINE(HAVE_FSCRYPT_DIGESTED_NAME, 1,
2855 ['struct fscrypt_digested_name' exists])
2857 ]) # LC_FSCRYPT_DIGESTED_NAME
2860 # LC_FSCRYPT_DUMMY_CONTEXT_ENABLED
2862 # Kernel 5.7-rc7 ed318a6cc0b620440e65f48eb527dc3df7269ce4
2863 # replaces fscrypt_dummy_context_enabled() with
2864 # fscrypt_get_dummy_context(). Later kernels rename
2865 # fscrypt_get_dummy_context() to fscrypt_get_dummy_policy()
2866 # which is why we test fscrypt_dummy_context_enabled().
2868 AC_DEFUN([LC_SRC_FSCRYPT_DUMMY_CONTEXT_ENABLED], [
2869 LB2_LINUX_TEST_SRC([fscrypt_dummy_context_enabled], [
2870 #include <linux/fscrypt.h>
2872 fscrypt_dummy_context_enabled(NULL);
2875 AC_DEFUN([LC_FSCRYPT_DUMMY_CONTEXT_ENABLED], [
2876 AC_MSG_CHECKING([if fscrypt_dummy_context_enabled() exists])
2877 LB2_LINUX_TEST_RESULT([fscrypt_dummy_context_enabled], [
2878 AC_DEFINE(HAVE_FSCRYPT_DUMMY_CONTEXT_ENABLED, 1,
2879 [fscrypt_dummy_context_enabled() exists])
2881 ]) # LC_FSCRYPT_DUMMY_CONTEXT_ENABLED
2884 # LC_FSCRYPT_FNAME_ALLOC_BUFFER
2886 # Kernel 5.9-rc4 8b10fe68985278de4926daa56ad6af701839e40a
2887 # removed the inode parameter for the fscrypt function
2888 # fscrypt_fname_alloc_buffer()
2890 AC_DEFUN([LC_SRC_FSCRYPT_FNAME_ALLOC_BUFFER], [
2891 LB2_LINUX_TEST_SRC([fscrypt_fname_alloc_buffer], [
2892 #include <linux/fscrypt.h>
2894 fscrypt_fname_alloc_buffer(0, NULL);
2897 AC_DEFUN([LC_FSCRYPT_FNAME_ALLOC_BUFFER], [
2898 AC_MSG_CHECKING([if fscrypt_fname_alloc_buffer() removed inode parameter])
2899 LB2_LINUX_TEST_RESULT([fscrypt_fname_alloc_buffer], [
2900 AC_DEFINE(HAVE_FSCRYPT_FNAME_ALLOC_BUFFER_NO_INODE, 1,
2901 [fscrypt_fname_alloc_buffer() does not have inode parameter])
2903 ]) # LC_FSCRYPT_FNAME_ALLOC_BUFFER
2906 # LC_FSCRYPT_SET_CONTEXT
2908 # Kernel 5.9-rc4 a992b20cd4ee360dbbe6f69339cb07146e4304d6
2909 # fscrypt_get_encryption_info() is not GFP_NOFS safe which
2910 # is used by fscrypt_inherit_context. Replace fscrypt_inherit_context,
2911 # with two new functions, fscrypt_prepare_new_inode() and
2912 # fscrypt_set_context()
2914 AC_DEFUN([LC_SRC_FSCRYPT_SET_CONTEXT], [
2915 LB2_LINUX_TEST_SRC([fscrypt_set_context], [
2916 #include <linux/fscrypt.h>
2918 fscrypt_set_context(NULL, NULL);
2919 fscrypt_prepare_new_inode(NULL, NULL, NULL);
2922 AC_DEFUN([LC_FSCRYPT_SET_CONTEXT], [
2923 AC_MSG_CHECKING([if 'fscrypt_set_context()' exists])
2924 LB2_LINUX_TEST_RESULT([fscrypt_set_context], [
2925 AC_DEFINE(HAVE_FSCRYPT_SET_CONTEXT, 1,
2926 [fscrypt_set_context() does exist])
2928 ]) # LC_FSCRYPT_SET_CONTEXT
2931 # LC_FSCRYPT_D_REVALIDATE
2933 # kernel 5.9-rc4 5b2a828b98ec1872799b1b4d82113c76a12d594f
2934 # exported fscrypt_d_revalidate()
2936 AC_DEFUN([LC_FSCRYPT_D_REVALIDATE], [
2937 LB_CHECK_EXPORT([fscrypt_d_revalidate], [fs/crypto/fname.c],
2938 [AC_DEFINE(HAVE_FSCRYPT_D_REVALIDATE, 1,
2939 [fscrypt_d_revalidate() is exported by the kernel])])
2940 ]) # LC_FSCRYPT_D_REVALIDATE
2943 # LC_FSCRYPT_NOKEY_NAME
2945 # kernel 5.9-rc4 70fb2612aab62d47e03f82eaa7384a8d30ca175d
2946 # renamed is_ciphertext_name to is_nokey_name
2948 AC_DEFUN([LC_SRC_FSCRYPT_NOKEY_NAME], [
2949 LB2_LINUX_TEST_SRC([fname_is_nokey_name], [
2950 #include <linux/fscrypt.h>
2952 struct fscrypt_name fname;
2954 fname.is_nokey_name = true;
2957 AC_DEFUN([LC_FSCRYPT_NOKEY_NAME], [
2958 AC_MSG_CHECKING([if struct fscrypt_name has is_nokey_name field])
2959 LB2_LINUX_TEST_RESULT([fname_is_nokey_name], [
2960 AC_DEFINE(HAVE_FSCRYPT_NOKEY_NAME, 1,
2961 [struct fscrypt_name has is_nokey_name field])
2963 ]) # LC_FSCRYPT_NOKEY_NAME
2966 # LC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG
2967 # Kernel 5.9-rc4 c8c868abc91ff23f6f5c4444c419de7c277d77e1
2968 # changed fscrypt_set_test_dummy_encryption() take a 'const char *
2970 AC_DEFUN([LC_SRC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG], [
2971 LB2_LINUX_TEST_SRC([fscrypt_set_test_dummy_encryption], [
2972 #include <linux/fscrypt.h>
2975 fscrypt_set_test_dummy_encryption(NULL, arg, NULL);
2978 AC_DEFUN([LC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG], [
2979 AC_MSG_CHECKING([if fscrypt_set_test_dummy_encryption() take 'const char' parameter])
2980 LB2_LINUX_TEST_RESULT([fscrypt_set_test_dummy_encryption], [
2981 AC_DEFINE(HAVE_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG, 1,
2982 [fscrypt_set_test_dummy_encryption() take 'const char' parameter])
2984 ]) # LC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG
2987 # LC_FSCRYPT_DUMMY_POLICY
2989 # Kernel 5.9-rc4 ac4acb1f4b2b6b7e8d913537cccec8789903e164
2990 # move the test dummy context for fscrypt_policy which is
2991 # also used by the user land interface.
2993 AC_DEFUN([LC_SRC_FSCRYPT_DUMMY_POLICY], [
2994 LB2_LINUX_TEST_SRC([fscrypt_free_dummy_policy], [
2995 #include <linux/fscrypt.h>
2997 fscrypt_free_dummy_policy(NULL);
3000 AC_DEFUN([LC_FSCRYPT_DUMMY_POLICY], [
3001 AC_MSG_CHECKING([if fscrypt_free_dummy_policy() exists])
3002 LB2_LINUX_TEST_RESULT([fscrypt_free_dummy_policy], [
3003 AC_DEFINE(HAVE_FSCRYPT_DUMMY_POLICY, 1,
3004 [fscrypt_free_dummy_policy() exists])
3006 ]) # LC_FSCRYPT_DUMMY_POLICY
3009 # LC_HAVE_ITER_FILE_SPLICE_WRITE
3011 # Linux commit v5.9-rc1-6-g36e2c7421f02
3012 # fs: don't allow splice read/write without explicit ops
3014 AC_DEFUN([LC_SRC_HAVE_ITER_FILE_SPLICE_WRITE], [
3015 LB2_LINUX_TEST_SRC([iter_file_splice_write], [
3016 #include <linux/fs.h>
3018 (void)iter_file_splice_write(NULL, NULL, NULL, 1, 0);
3021 AC_DEFUN([LC_HAVE_ITER_FILE_SPLICE_WRITE], [
3022 AC_MSG_CHECKING([if iter_file_splice_write() exists])
3023 LB2_LINUX_TEST_RESULT([iter_file_splice_write], [
3024 AC_DEFINE(HAVE_ITER_FILE_SPLICE_WRITE, 1,
3025 ['iter_file_splice_write' exists])
3027 ]) # LC_HAVE_ITER_FILE_SPLICE_WRITE
3030 # LC_FSCRYPT_IS_NOKEY_NAME
3032 # Kernel 5.10-rc4 159e1de201b6fca10bfec50405a3b53a561096a8
3033 # introduced fscrypt_is_nokey_name() inline macro. While
3034 # introduced for 5.10 kernels it was backported to earlier
3035 # Ubuntu kernels. Also it hides the change introduced due
3036 # to git commit 501e43fbe for kernel 5.9 which also was
3037 # backported to earlier Ubuntu kernels.
3039 AC_DEFUN([LC_SRC_FSCRYPT_IS_NOKEY_NAME], [
3040 LB2_LINUX_TEST_SRC([fscrypt_is_no_key_name], [
3041 #include <linux/fscrypt.h>
3043 fscrypt_is_nokey_name(NULL);
3046 AC_DEFUN([LC_FSCRYPT_IS_NOKEY_NAME], [
3047 AC_MSG_CHECKING([if fscrypt_is_no_key_name() exists])
3048 LB2_LINUX_TEST_RESULT([fscrypt_is_no_key_name], [
3049 AC_DEFINE(HAVE_FSCRYPT_IS_NOKEY_NAME, 1,
3050 [fscrypt_is_nokey_name() exists])
3052 ]) # LC_FSCRYPT_IS_NOKEY_NAME
3055 # LC_FSCRYPT_PREPARE_READDIR
3057 # Kernel 5.10-rc4 ec0caa974cd092549ab282deb8ec7ea73b36eba0
3058 # replaced fscrypt_get_encryption_info() with
3059 # fscrypt_prepare_readdir()
3061 AC_DEFUN([LC_SRC_FSCRYPT_PREPARE_READDIR], [
3062 LB2_LINUX_TEST_SRC([fscrypt_prepare_readdir], [
3063 #include <linux/fscrypt.h>
3065 fscrypt_prepare_readdir(NULL);
3068 AC_DEFUN([LC_FSCRYPT_PREPARE_READDIR], [
3069 AC_MSG_CHECKING([if fscrypt_prepare_readdir() exists])
3070 LB2_LINUX_TEST_RESULT([fscrypt_prepare_readdir], [
3071 AC_DEFINE(HAVE_FSCRYPT_PREPARE_READDIR, 1,
3072 [fscrypt_prepare_readdir() exists])
3074 ]) # LC_FSCRYPT_PREPARE_READDIR
3079 # Linux: v5.11-rc5-9-g309dca309fc3
3080 # block: store a block_device pointer in struct bio
3081 # created bio_set_dev macro
3082 # Linux: v5.15-rc6-127-gcf6d6238cdd3
3083 # block: turn macro helpers into inline functions
3084 # created inline function(s).
3086 # Only provide a bio_set_dev it is is not proveded by the kernel
3088 AC_DEFUN([LC_SRC_BIO_SET_DEV], [
3089 LB2_LINUX_TEST_SRC([bio_set_dev], [
3090 #include <linux/bio.h>
3092 struct bio *bio = NULL;
3093 struct block_device *bdev = NULL;
3095 bio_set_dev(bio, bdev);
3098 AC_DEFUN([LC_BIO_SET_DEV], [
3099 AC_MSG_CHECKING([if 'bio_set_dev' is available])
3100 LB2_LINUX_TEST_RESULT([bio_set_dev], [
3101 AC_DEFINE(HAVE_BIO_SET_DEV, 1, ['bio_set_dev' is available])
3106 # LC_HAVE_USER_NAMESPACE_ARG
3108 # kernel 5.12 commit 549c7297717c32ee53f156cd949e055e601f67bb
3109 # fs: make helpers idmap mount aware
3110 # Extend some inode methods with an additional user namespace argument.
3112 AC_DEFUN([LC_SRC_HAVE_USER_NAMESPACE_ARG], [
3113 LB2_LINUX_TEST_SRC([inode_ops_has_user_namespace_argument], [
3114 #include <linux/fs.h>
3116 ((struct inode_operations *)1)->getattr((struct user_namespace *)NULL,
3120 AC_DEFUN([LC_HAVE_USER_NAMESPACE_ARG], [
3121 AC_MSG_CHECKING([if 'inode_operations' members have user namespace argument])
3122 LB2_LINUX_TEST_RESULT([inode_ops_has_user_namespace_argument], [
3123 AC_DEFINE(HAVE_USER_NAMESPACE_ARG, 1,
3124 ['inode_operations' members have user namespace argument])
3126 ]) # LC_HAVE_USER_NAMESPACE_ARG
3129 # LC_HAVE_FILEATTR_GET
3131 # kernel 5.13 4c5b479975212065ef39786e115fde42847e95a9
3132 # vfs: add fileattr ops
3133 # Add inode operations to replace FS_IOC_[SG]ETFLAGS ioctl
3134 # The type signature of ->fileattr_set is not stable for the
3135 # first few iterations, so don't commit to a particular signature
3136 # here. Hopefully we will only want to support the final version.
3138 AC_DEFUN([LC_HAVE_FILEATTR_GET], [
3139 tmp_flags="$EXTRA_KCFLAGS"
3140 EXTRA_KCFLAGS="-Werror"
3141 LB_CHECK_COMPILE([if 'inode_operations' has fileattr_get (and fileattr_set)],
3143 #include <linux/fs.h>
3145 ((struct inode_operations *)1)->fileattr_get(NULL, NULL);
3147 AC_DEFINE(HAVE_FILEATTR_GET, 1,
3148 ['inode_operations' has fileattr_get and fileattr_set])
3150 EXTRA_KCFLAGS="$tmp_flags"
3151 ]) # LC_HAVE_FILEATTR_GET
3154 # LC_HAVE_GET_ACL_RCU_ARG
3156 # kernel 5.15 commit 0cad6246621b5887d5b33fea84219d2a71f2f99a
3157 # vfs: add rcu argument to ->get_acl() callback
3158 # Add a rcu argument to the ->get_acl() callback to allow
3159 # get_cached_acl_rcu() to call the ->get_acl() method.
3161 AC_DEFUN([LC_SRC_HAVE_GET_ACL_RCU_ARG], [
3162 LB2_LINUX_TEST_SRC([get_acl_rcu_argument], [
3163 #include <linux/fs.h>
3165 ((struct inode_operations *)1)->get_acl((struct inode *)NULL, 0, false);
3168 AC_DEFUN([LC_HAVE_GET_ACL_RCU_ARG], [
3169 AC_MSG_CHECKING([if 'get_acl' has a rcu argument])
3170 LB2_LINUX_TEST_RESULT([get_acl_rcu_argument], [
3171 AC_DEFINE(HAVE_GET_ACL_RCU_ARG, 1,
3172 ['get_acl' has a rcu argument])
3174 ]) # LC_HAVE_GET_ACL_RCU_ARG
3177 # LC_HAVE_INVALIDATE_LOCK
3179 # Kernel version v5.15-rc1 commit 730633f0b7f951726e87f912a6323641f674ae34
3180 # mm: Protect operations adding pages to page cache with invalidate_lock
3182 AC_DEFUN([LC_HAVE_INVALIDATE_LOCK], [
3183 tmp_flags="$EXTRA_KCFLAGS"
3184 EXTRA_KCFLAGS="-Werror"
3185 LB_CHECK_COMPILE([if have address_space have invalidate_lock member],
3186 address_space_invalidate_lock, [
3187 #include <linux/fs.h>
3189 struct address_space *mapping = NULL;
3191 filemap_invalidate_lock(mapping);
3193 AC_DEFINE(HAVE_INVALIDATE_LOCK, 1,
3194 [address_space invalidate_lock member exists])
3196 EXTRA_KCFLAGS="$tmp_flags"
3197 ]) # LC_HAVE_INVALIDATE_LOCK
3200 # LC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG
3202 # Linux v5.15-rc1-20-g15bf32398ad4
3203 # security: Return xattr name from security_dentry_init_security()
3205 AC_DEFUN([LC_SRC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG], [
3206 LB2_LINUX_TEST_SRC([security_dentry_init_security_xattr_name_arg], [
3207 #include <linux/security.h>
3209 struct dentry *dentry = NULL;
3211 const struct qstr *name = NULL;
3212 const char *xattr_name = NULL;
3215 int rc = security_dentry_init_security(dentry, mode, name, &xattr_name,
3221 AC_DEFUN([LC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG], [
3222 AC_MSG_CHECKING([if security_dentry_init_security() returns xattr name])
3223 LB2_LINUX_TEST_RESULT([security_dentry_init_security_xattr_name_arg], [
3224 AC_DEFINE(HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG, 1,
3225 [security_dentry_init_security() returns xattr name])
3227 ]) # LC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG
3230 # LC_HAVE_KIOCB_COMPLETE_2ARGS
3232 # kernel v5.15-rc6-145-g6b19b766e8f0
3233 # fs: get rid of the res2 iocb->ki_complete argument
3235 AC_DEFUN([LC_SRC_HAVE_KIOCB_COMPLETE_2ARGS], [
3236 LB2_LINUX_TEST_SRC([kiocb_ki_complete_2args], [
3237 #include <linux/fs.h>
3239 static void complete_fn(struct kiocb *iocb, long ret)
3245 struct kiocb *kio = NULL;
3247 kio->ki_complete = complete_fn;
3250 AC_DEFUN([LC_HAVE_KIOCB_COMPLETE_2ARGS], [
3251 AC_MSG_CHECKING([if kiocb->ki_complete() has 2 arguments])
3252 LB2_LINUX_TEST_RESULT([kiocb_ki_complete_2args], [
3253 AC_DEFINE(HAVE_KIOCB_COMPLETE_2ARGS, 1,
3254 [kiocb->ki_complete() has 2 arguments])
3256 ]) # LC_HAVE_KIOCB_COMPLETE_2ARGS
3259 # LC_EXPORTS_DELETE_FROM_PAGE_CACHE
3261 # Linux commit v5.16-rc4-44-g452e9e6992fe
3262 # filemap: Add filemap_remove_folio and __filemap_remove_folio
3264 # Also removes the export of delete_from_page_cache
3266 AC_DEFUN([LC_EXPORTS_DELETE_FROM_PAGE_CACHE], [
3267 LB_CHECK_EXPORT([delete_from_page_cache], [mm/filemap.c],
3268 [AC_DEFINE(HAVE_DELETE_FROM_PAGE_CACHE, 1,
3269 [delete_from_page_cache is exported])])
3270 ]) # LC_EXPORTS_DELETE_FROM_PAGE_CACHE
3273 # LC_HAVE_INVALIDATE_FOLIO
3275 # linux commit v5.17-rc4-10-g128d1f8241d6
3276 # fs: Add invalidate_folio() aops method
3278 AC_DEFUN([LC_SRC_HAVE_INVALIDATE_FOLIO], [
3279 LB2_LINUX_TEST_SRC([address_spaace_operaions_invalidate_folio], [
3280 #include <linux/fs.h>
3282 struct address_space_operations *aops = NULL;
3283 struct folio *folio = NULL;
3284 aops->invalidate_folio(folio, 0, PAGE_SIZE);
3288 AC_DEFUN([LC_HAVE_INVALIDATE_FOLIO], [
3289 AC_MSG_CHECKING([if have address_spaace_operaions->invalidate_folio() member])
3290 LB2_LINUX_TEST_RESULT([address_spaace_operaions_invalidate_folio], [
3291 AC_DEFINE(HAVE_INVALIDATE_FOLIO, 1,
3292 [address_spaace_operaions->invalidate_folio() member exists])
3294 ]) # LC_HAVE_INVALIDATE_FOLIO
3297 # LC_HAVE_DIRTY_FOLIO
3299 # linux commit v5.17-rc4-38-g6f31a5a261db
3300 # fs: Add aops->dirty_folio
3301 # ... replaces ->set_page_dirty() with ->dirty_folio()
3303 AC_DEFUN([LC_SRC_HAVE_DIRTY_FOLIO], [
3304 LB2_LINUX_TEST_SRC([address_spaace_operaions_dirty_folio], [
3305 #include <linux/fs.h>
3307 struct address_space_operations *aops = NULL;
3308 struct address_space *mapping = NULL;
3309 struct folio *folio = NULL;
3310 bool dirty = aops->dirty_folio(mapping, folio);
3314 AC_DEFUN([LC_HAVE_DIRTY_FOLIO], [
3315 AC_MSG_CHECKING([if have address_spaace_operaions->dirty_folio() member])
3316 LB2_LINUX_TEST_RESULT([address_spaace_operaions_dirty_folio], [
3317 AC_DEFINE(HAVE_DIRTY_FOLIO, 1,
3318 [address_spaace_operaions->dirty_folio() member exists])
3320 ]) # LC_HAVE_DIRTY_FOLIO
3323 # LC_HAVE_ALLOC_INODE_SB
3325 # linux commit v5.17-49-g8b9f3ac5b01d
3326 # fs: introduce alloc_inode_sb() to allocate filesystems specific inode
3328 AC_DEFUN([LC_SRC_HAVE_ALLOC_INODE_SB], [
3329 LB2_LINUX_TEST_SRC([alloc_inode_sb], [
3330 #include <linux/fs.h>
3332 struct super_block *sb = NULL;
3333 struct kmem_cache *cache = NULL;
3335 (void)alloc_inode_sb(sb, cache, GFP_NOFS);
3338 AC_DEFUN([LC_HAVE_ALLOC_INODE_SB], [
3339 AC_MSG_CHECKING([if alloc_inode_sb() exists])
3340 LB2_LINUX_TEST_RESULT([alloc_inode_sb], [
3341 AC_DEFINE(HAVE_ALLOC_INODE_SB, 1,
3342 [alloc_inode_sb() exists])
3344 ]) # LC_HAVE_ALLOC_INODE_SB
3347 # LC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS
3349 # Linux commit v5.18-rc5-221-gb7446e7cf15f
3350 # fs: Remove aop flags parameter from grab_cache_page_write_begin()
3352 AC_DEFUN([LC_SRC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS], [
3353 LB2_LINUX_TEST_SRC([grab_cache_page_write_begin_with_flags], [
3354 #include <linux/pagemap.h>
3356 struct address_space *mapping = NULL;
3357 (void)grab_cache_page_write_begin(mapping, 0, 1);
3360 AC_DEFUN([LC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS], [
3361 AC_MSG_CHECKING([if grab_cache_page_write_begin() has flags argument])
3362 LB2_LINUX_TEST_RESULT([grab_cache_page_write_begin_with_flags], [
3363 AC_DEFINE(HAVE_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS, 1,
3364 [grab_cache_page_write_begin() has flags argument])
3366 ]) # LC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS
3369 # LC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO
3371 # Linux commit v5.18-rc5-241-g5efe7448a142
3372 # fs: Introduce aops->read_folio
3374 AC_DEFUN([LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO], [
3375 LB2_LINUX_TEST_SRC([address_space_operations_read_folio], [
3376 #include <linux/fs.h>
3378 struct address_space_operations *aops = NULL;
3379 struct file *file = NULL;
3380 struct folio *folio = NULL;
3381 int err = aops->read_folio(file, folio);
3385 AC_DEFUN([LC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO], [
3386 AC_MSG_CHECKING([if struct address_space_operations() has read_folio()])
3387 LB2_LINUX_TEST_RESULT([address_space_operations_read_folio], [
3388 AC_DEFINE(HAVE_AOPS_READ_FOLIO, 1,
3389 [struct address_space_operations() has read_folio()])
3391 ]) # LC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO
3394 # LC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE
3396 # Linux commit v5.18-rc5-280-ge9b5b23e957e
3397 # fs: Change the type of filler_t
3399 AC_DEFUN([LC_SRC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE], [
3400 LB2_LINUX_TEST_SRC([read_cache_page_filler_with_file], [
3401 #include <linux/pagemap.h>
3402 static inline int _filler(struct file *file, struct folio *f)
3407 struct address_space *mapping = NULL;
3408 struct file *file = NULL;
3409 struct page *page = read_cache_page(mapping, 0, _filler, file);
3413 AC_DEFUN([LC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE], [
3414 AC_MSG_CHECKING([if read_cache_page() filler_t needs struct file])
3415 LB2_LINUX_TEST_RESULT([read_cache_page_filler_with_file], [
3416 AC_DEFINE(HAVE_READ_CACHE_PAGE_WANTS_FILE, 1,
3417 [read_cache_page() filler_t needs struct file])
3419 ]) # LC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE
3422 # LC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO
3424 # Linux commit v5.18-rc5-282-gfa29000b6b26
3425 # fs: Add aops->release_folio
3427 AC_DEFUN([LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO], [
3428 LB2_LINUX_TEST_SRC([address_space_operations_release_folio], [
3429 #include <linux/fs.h>
3431 struct address_space_operations *aops = NULL;
3432 struct folio *folio = NULL;
3433 int err = aops->release_folio(folio, GFP_KERNEL);
3437 AC_DEFUN([LC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO], [
3438 AC_MSG_CHECKING([if struct address_space_operations() has release_folio()])
3439 LB2_LINUX_TEST_RESULT([address_space_operations_release_folio], [
3440 AC_DEFINE(HAVE_AOPS_RELEASE_FOLIO, 1,
3441 [struct address_space_operations() has release_folio()])
3443 ]) # LC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO
3446 # LC_HAVE_LSMCONTEXT_INIT
3448 # repo: git://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/jammy
3449 # kernel linux-hwe-5.19 commit fef1deb99dad87dd700afae76b35c5b5750e33a8
3450 # LSM: Removed scaffolding function lsmcontext_init
3452 AC_DEFUN([LC_SRC_HAVE_LSMCONTEXT_INIT], [
3453 LB2_LINUX_TEST_SRC([lsmcontext_init], [
3454 #include <linux/security.h>
3456 struct lsmcontext ctx = {};
3458 lsmcontext_init(&ctx, "", 0, 0);
3461 AC_DEFUN([LC_HAVE_LSMCONTEXT_INIT], [
3462 AC_MSG_CHECKING([if lsmcontext_init is available])
3463 LB2_LINUX_TEST_RESULT([lsmcontext_init], [
3464 AC_DEFINE(HAVE_LSMCONTEXT_INIT, 1,
3465 [lsmcontext_init is available])
3467 ]) # LC_HAVE_LSMCONTEXT_INIT
3470 # LC_SECURITY_DENTRY_INIT_SECURTY_WITH_CTX
3472 # repo: git://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/jammy
3473 # kernel linux-hwe-5.19 commit 57d0004bc811254916be30f94c86d9607867deb0
3474 # LSM: Use lsmcontext in security_dentry_init_security
3476 AC_DEFUN([LC_SRC_SECURITY_DENTRY_INIT_SECURTY_WITH_CTX], [
3477 LB2_LINUX_TEST_SRC([security_dentry_init_security_with_ctx], [
3478 #include <linux/security.h>
3480 struct dentry *dentry = NULL;
3481 const struct qstr *name = NULL;
3482 struct lsmcontext *ctx = NULL;
3483 const char *xattr_name = "";
3485 (void)security_dentry_init_security(dentry, 0, name,
3489 AC_DEFUN([LC_SECURITY_DENTRY_INIT_SECURTY_WITH_CTX], [
3490 AC_MSG_CHECKING([if security_dentry_init_security needs lsmcontext])
3491 LB2_LINUX_TEST_RESULT([security_dentry_init_security_with_ctx], [
3492 AC_DEFINE(HAVE_SECURITY_DENTRY_INIT_SECURTY_WITH_CTX, 1,
3493 [security_dentry_init_security needs lsmcontext])
3495 ]) # LC_SECURITY_DENTRY_INIT_SECURTY_WITH_CTX
3500 # Linux commit v5.19-rc2-6-g868941b14441
3501 # fs: remove no_llseek
3503 AC_DEFUN([LC_SRC_HAVE_NO_LLSEEK], [
3504 LB2_LINUX_TEST_SRC([no_llseek], [
3505 #include <linux/fs.h>
3507 static const struct file_operations fops = {
3508 .llseek = &no_llseek,
3513 AC_DEFUN([LC_HAVE_NO_LLSEEK], [
3514 AC_MSG_CHECKING([if no_llseek() is available])
3515 LB2_LINUX_TEST_RESULT([no_llseek], [
3516 AC_DEFINE(HAVE_NO_LLSEEK, 1, [no_llseek() is available])
3518 ]) # LC_HAVE_NO_LLSEEK
3521 # LC_DQUOT_TRANSFER_WITH_USER_NS
3523 # Linux commit v5.19-rc3-6-g71e7b535b890
3524 # quota: port quota helpers mount ids
3526 AC_DEFUN([LC_SRC_DQUOT_TRANSFER_WITH_USER_NS], [
3527 LB2_LINUX_TEST_SRC([dquot_transfer], [
3528 #include <linux/quotaops.h>
3530 struct user_namespace *userns = NULL;
3531 struct inode *inode = NULL;
3532 struct iattr *iattr = NULL;
3533 int err __attribute__ ((unused));
3535 err = dquot_transfer(userns, inode, iattr);
3538 AC_DEFUN([LC_DQUOT_TRANSFER_WITH_USER_NS], [
3539 AC_MSG_CHECKING([if dquot_transfer() has user_ns argument])
3540 LB2_LINUX_TEST_RESULT([dquot_transfer], [
3541 AC_DEFINE(HAVE_DQUOT_TRANSFER_WITH_USER_NS, 1,
3542 [dquot_transfer() has user_ns argument])
3544 ]) # LC_DQUOT_TRANSFER_WITH_USER_NS
3547 # LC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO
3549 # Linux commit v5.19-rc3-392-g5490da4f06d1
3550 # fs: Add aops->migrate_folio
3552 AC_DEFUN([LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO], [
3553 LB2_LINUX_TEST_SRC([address_space_operations_migrate_folio], [
3554 #include <linux/fs.h>
3556 struct address_space_operations *aops = NULL;
3557 struct address_space *m = NULL;
3558 struct folio *src = NULL;
3559 struct folio *dst = NULL;
3560 int err = aops->migrate_folio(m, dst, src, MIGRATE_ASYNC);
3564 AC_DEFUN([LC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO], [
3565 AC_MSG_CHECKING([if struct address_space_operations() has migrate_folio()])
3566 LB2_LINUX_TEST_RESULT([address_space_operations_migrate_folio], [
3567 AC_DEFINE(HAVE_AOPS_MIGRATE_FOLIO, 1,
3568 [struct address_space_operations() has migrate_folio()])
3570 ]) # LC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO
3573 # LC_REGISTER_SHRINKER_FORMAT_NAMED
3575 # Linux commit v5.19-rc4-52-ge33c267ab70d
3576 # mm: shrinkers: provide shrinkers with names
3578 AC_DEFUN([LC_SRC_REGISTER_SHRINKER_FORMAT_NAMED], [
3579 LB2_LINUX_TEST_SRC([register_shrinker_format], [
3580 #include <linux/mm.h>
3582 if (register_shrinker(NULL, "lustre-%ps", __func__))
3583 unregister_shrinker(NULL);
3586 AC_DEFUN([LC_REGISTER_SHRINKER_FORMAT_NAMED], [
3587 AC_MSG_CHECKING([if register_shrinker() returns status])
3588 LB2_LINUX_TEST_RESULT([address_space_operations_migrate_folio], [
3589 AC_DEFINE(HAVE_REGISTER_SHRINKER_FORMAT_NAMED, 1,
3590 [register_shrinker() returns status])
3592 ]) # LC_REGISTER_SHRINKER_FORMAT_NAMED
3595 # LC_HAVE_VFS_SETXATTR_NON_CONST_VALUE
3597 # From Linux commit v5.19-rc5-17-g0c5fd887d2bb
3598 # acl: move idmapped mount fixup into vfs_{g,s}etxattr()
3599 # Until Linux commit v6.0-rc3-6-g6344e66970c6
3600 # xattr: constify value argument in vfs_setxattr()
3602 AC_DEFUN([LC_SRC_HAVE_VFS_SETXATTR_NON_CONST_VALUE], [
3603 LB2_LINUX_TEST_SRC([vfs_setxattr_non_const_value_arg], [
3604 #include <linux/xattr.h>
3606 struct dentry *de = NULL;
3607 const char *name = "an.xattr";
3608 const void *value = NULL;
3609 int err = vfs_setxattr(&init_user_ns, de, name, value, 0, 0);
3612 ]) # LC_HAVE_VFS_SETXATTR_NON_CONST_VALUE
3613 AC_DEFUN([LC_HAVE_VFS_SETXATTR_NON_CONST_VALUE], [
3614 AC_MSG_CHECKING([if vfs_setxattr() value argument is non-const])
3615 LB2_LINUX_TEST_RESULT([vfs_setxattr_non_const_value_arg], [
3616 AC_DEFINE([VFS_SETXATTR_VALUE(value)],
3618 [vfs_setxattr() value argument is const void *])
3620 AC_DEFINE([VFS_SETXATTR_VALUE(value)],
3621 [((void *)(value))],
3622 [vfs_setxattr() value argument is non-const])
3624 ]) # LC_HAVE_VFS_SETXATTR_NON_CONST_VALUE
3627 # LC_HAVE_IOV_ITER_GET_PAGES_ALLOC2
3629 # Linux commit v5.19-10313-geba2d3d79829
3630 # get rid of non-advancing variants
3632 AC_DEFUN([LC_SRC_HAVE_IOV_ITER_GET_PAGES_ALLOC2], [
3633 LB2_LINUX_TEST_SRC([iov_iter_get_pages_alloc2], [
3634 #include <linux/uio.h>
3636 struct iov_iter *iter = NULL;
3637 struct page ***pages = NULL;
3640 size_t result __attribute__ ((unused));
3641 result = iov_iter_get_pages_alloc2(iter, pages, maxsize, &start);
3644 AC_DEFUN([LC_HAVE_IOV_ITER_GET_PAGES_ALLOC2], [
3645 AC_MSG_CHECKING([if iov_iter_get_pages_alloc2() is available])
3646 LB2_LINUX_TEST_RESULT([iov_iter_get_pages_alloc2], [
3647 AC_DEFINE(HAVE_IOV_ITER_GET_PAGES_ALLOC2, 1,
3648 [iov_iter_get_pages_alloc2() is available])
3650 ]) # LC_HAVE_IOV_ITER_GET_PAGES_ALLOC2
3653 # LC_HAVE_GET_RANDOM_U32_AND_U64
3655 # Linux commit v4.10-rc3-6-gc440408cf690
3656 # random: convert get_random_int/long into get_random_u32/u64
3657 # Linux commit v6.0-11338-gde492c83cae0
3658 # prandom: remove unused functions
3660 AC_DEFUN([LC_SRC_HAVE_GET_RANDOM_U32_AND_U64], [
3661 LB2_LINUX_TEST_SRC([get_random_u32_and_u64], [
3662 #include <linux/random.h>
3664 u32 rand32 = get_random_u32();
3665 u64 rand64 = get_random_u64();
3670 AC_DEFUN([LC_HAVE_GET_RANDOM_U32_AND_U64], [
3671 AC_MSG_CHECKING([if get_random_u32() and get_random_u64() are available])
3672 LB2_LINUX_TEST_RESULT([get_random_u32_and_u64], [
3673 AC_DEFINE(HAVE_GET_RANDOM_U32_AND_U64, 1,
3674 [get_random_[u32|u64] are available])
3676 AC_DEFINE([get_random_u32()], [prandom_u32()],
3677 [get_random_u32() is not available, use prandom_u32])
3679 ]) # LC_HAVE_GET_RANDOM_U32_AND_U64
3682 # LC_NFS_FILLDIR_USE_CTX_RETURN_BOOL
3684 # Linux commit v6.0-rc1-2-g25885a35a720
3685 # Change calling conventions for filldir_t
3687 AC_DEFUN([LC_SRC_NFS_FILLDIR_USE_CTX_RETURN_BOOL], [
3688 LB2_LINUX_TEST_SRC([filldir_ctx_return_bool], [
3689 #include <linux/fs.h>
3691 bool filldir(struct dir_context *ctx, const char* name,
3692 int i, loff_t off, u64 tmp, unsigned temp)
3697 struct dir_context ctx = {
3701 ctx.actor(NULL, "test", 0, (loff_t) 0, 0, 0);
3704 AC_DEFUN([LC_NFS_FILLDIR_USE_CTX_RETURN_BOOL], [
3705 AC_MSG_CHECKING([if filldir_t uses struct dir_context and returns bool])
3706 LB2_LINUX_TEST_RESULT([filldir_ctx_return_bool], [
3707 AC_DEFINE(HAVE_FILLDIR_USE_CTX_RETURN_BOOL, 1,
3708 [filldir_t needs struct dir_context and returns bool])
3709 AC_DEFINE(HAVE_FILLDIR_USE_CTX, 1,
3710 [filldir_t needs struct dir_context as argument])
3711 AC_DEFINE(FILLDIR_TYPE, bool,
3712 [filldir_t return type is bool or int])
3714 AC_DEFINE(FILLDIR_TYPE, int,
3715 [filldir_t return type is bool or int])
3717 ]) # LC_NFS_FILLDIR_USE_CTX_RETURN_BOOL
3720 # LC_HAVE_FILEMAP_GET_FOLIOS_CONTIG
3722 # Linux commit v6.0-rc3-94-g35b471467f88
3723 # filemap: add filemap_get_folios_contig()
3725 AC_DEFUN([LC_SRC_HAVE_FILEMAP_GET_FOLIOS_CONTIG], [
3726 LB2_LINUX_TEST_SRC([filemap_get_folios_contig], [
3727 #include <linux/pagemap.h>
3729 struct address_space *m = NULL;
3731 struct folio_batch *fbatch = NULL;
3732 (void)filemap_get_folios_contig(m, &start, ULONG_MAX, fbatch);
3735 AC_DEFUN([LC_HAVE_FILEMAP_GET_FOLIOS_CONTIG], [
3736 AC_MSG_CHECKING([if filemap_get_folios_contig() is available])
3737 LB2_LINUX_TEST_RESULT([filldir_ctx_return_bool], [
3738 AC_DEFINE(HAVE_FILEMAP_GET_FOLIOS_CONTIG, 1,
3739 [filemap_get_folios_contig() is available])
3741 ]) # LC_HAVE_FILEMAP_GET_FOLIOS_CONTIG
3744 # LC_HAVE_GET_RANDOM_U32_BELOW
3746 # Linux commit v6.1-13825-g3c202d14a9d7
3747 # prandom: remove prandom_u32_max()
3749 AC_DEFUN([LC_SRC_HAVE_GET_RANDOM_U32_BELOW], [
3750 LB2_LINUX_TEST_SRC([get_random_u32_below], [
3751 #include <linux/random.h>
3753 u32 rand32 = get_random_u32_below(99);
3757 AC_DEFUN([LC_HAVE_GET_RANDOM_U32_BELOW], [
3758 AC_MSG_CHECKING([if get_random_u32_below()is available])
3759 LB2_LINUX_TEST_RESULT([get_random_u32_below], [
3760 AC_DEFINE(HAVE_GET_RANDOM_U32_BELOW, 1,
3761 [get_random_u32_below() is available])
3763 AC_DEFINE([get_random_u32_below(v)], [prandom_u32_max(v)],
3764 [get_random_u32_below() is not available])
3766 ]) # LC_HAVE_GET_RANDOM_U32_BELOW
3769 # LC_HAVE_ACL_WITH_DENTRY
3771 # Linux commit v6.1-rc1-2-g138060ba92b3
3772 # fs: pass dentry to set acl method
3773 # Linux commit v6.1-rc1-4-g7420332a6ff4
3774 # fs: add new get acl method
3776 AC_DEFUN([LC_SRC_HAVE_ACL_WITH_DENTRY], [
3777 LB2_LINUX_TEST_SRC([acl_with_dentry], [
3778 #include <linux/fs.h>
3780 struct user_namespace *ns = NULL;
3781 struct dentry *dentry = NULL;
3783 ((struct inode_operations *)1)->get_acl(ns, dentry, 0);
3784 (void)ns; (void)dentry;
3787 AC_DEFUN([LC_HAVE_ACL_WITH_DENTRY], [
3788 AC_MSG_CHECKING([if 'get_acl' and 'set_acl' use dentry argument])
3789 LB2_LINUX_TEST_RESULT([acl_with_dentry], [
3790 AC_DEFINE(HAVE_ACL_WITH_DENTRY, 1,
3791 ['get_acl' and 'set_acl' use dentry argument])
3793 ]) # LC_HAVE_ACL_WITH_DENTRY
3796 # LC_HAVE_U64_CAPABILITY
3798 # linux kernel v6.2-13111-gf122a08b197d
3799 # capability: just use a 'u64' instead of a 'u32[2]' array
3801 AC_DEFUN([LC_SRC_HAVE_U64_CAPABILITY], [
3802 LB2_LINUX_TEST_SRC([kernel_cap_t_has_u64_value], [
3803 #include <linux/cred.h>
3804 #include <linux/capability.h>
3806 kernel_cap_t cap __attribute__ ((unused));
3807 cap.val = 0xffffffffffffffffull;
3810 AC_DEFUN([LC_HAVE_U64_CAPABILITY], [
3811 AC_MSG_CHECKING([if 'kernel_cap_t' has u64 val])
3812 LB2_LINUX_TEST_RESULT([kernel_cap_t_has_u64_value], [
3813 AC_DEFINE(HAVE_U64_CAPABILITY, 1,
3814 ['kernel_cap_t' has u64 val])
3816 ]) # LC_HAVE_U64_CAPABILITY
3821 # Lustre linux kernel checks
3823 AC_DEFUN([LC_PROG_LINUX_SRC], [
3824 AS_IF([test "x$enable_gss" != xno], [
3825 LC_SRC_KEY_TYPE_INSTANTIATE_2ARGS
3826 LB2_SRC_CHECK_CONFIG_IM([CRYPTO_MD5])
3827 LB2_SRC_CHECK_CONFIG_IM([CRYPTO_SHA1])
3828 LB2_SRC_CHECK_CONFIG_IM([CRYPTO_SHA256])
3829 LB2_SRC_CHECK_CONFIG_IM([CRYPTO_SHA512])
3831 AS_IF([test "x$enable_server" != xno], [
3835 LC_SRC_CONFIG_FHANDLE
3836 LC_SRC_POSIX_ACL_CONFIG
3837 LC_SRC_HAVE_PROJECT_QUOTA
3840 LC_SRC_INVALIDATE_RANGE
3841 LC_SRC_HAVE_DIR_CONTEXT
3842 LC_SRC_D_COMPARE_5ARGS
3844 LC_SRC_PID_NS_FOR_CHILDREN
3847 LC_SRC_OLDSIZE_TRUNCATE_PAGECACHE
3848 LC_SRC_PTR_ERR_OR_ZERO_MISSING
3849 LC_SRC_HAVE_DENTRY_D_U_D_ALIAS_LIST
3850 LC_SRC_HAVE_DENTRY_D_U_D_ALIAS_HLIST
3851 LC_SRC_HAVE_DENTRY_D_CHILD
3852 LC_SRC_KIOCB_KI_LEFT
3853 LC_SRC_REGISTER_SHRINKER_RET
3856 LC_SRC_VFS_RENAME_5ARGS
3857 LC_SRC_VFS_UNLINK_3ARGS
3858 LC_SRC_HAVE_D_IS_POSITIVE
3861 LC_SRC_HAVE_BVEC_ITER
3862 LC_SRC_HAVE_TRUNCATE_IPAGES_FINAL
3863 LC_SRC_IOPS_RENAME_WITH_FLAGS
3867 LC_SRC_VFS_RENAME_6ARGS
3870 LC_SRC_DIRECTIO_USE_ITER
3871 LC_SRC_HAVE_IOV_ITER_INIT_DIRECTION
3872 LC_SRC_HAVE_IOV_ITER_TRUNCATE
3873 LC_SRC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
3874 LC_SRC_PAGECACHE_GET_PAGE
3877 LC_SRC_HAVE_INTERVAL_BLK_INTEGRITY
3878 LC_SRC_KEY_MATCH_DATA
3879 LC_SRC_HAVE_BLK_INTEGRITY_ITER
3882 LC_SRC_NFS_FILLDIR_USE_CTX
3883 LC_SRC_PERCPU_COUNTER_INIT
3886 LC_SRC_KIOCB_HAS_NBYTES
3887 LC_SRC_HAVE_DQUOT_QC_DQBLK
3888 LC_SRC_HAVE_AIO_COMPLETE
3889 LC_SRC_HAVE_IS_ROOT_INODE
3892 LC_SRC_BACKING_DEV_INFO_REMOVAL
3896 LC_SRC_HAVE___BI_CNT
3899 LC_SRC_BIO_ENDIO_USES_ONE_ARG
3900 LC_SRC_SYMLINK_OPS_USE_NAMEIDATA
3901 LC_SRC_ACCOUNT_PAGE_DIRTIED_3ARGS
3902 LC_SRC_HAVE_CRYPTO_ALLOC_SKCIPHER
3905 LC_SRC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
3906 LC_SRC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
3907 LC_SRC_HAVE_CACHE_HEAD_HLIST
3908 LC_SRC_HAVE_XATTR_HANDLER_SIMPLIFIED
3911 LC_SRC_HAVE_LOCKS_LOCK_FILE_WAIT
3912 LC_SRC_HAVE_KEY_PAYLOAD_DATA_ARRAY
3913 LC_SRC_HAVE_XATTR_HANDLER_NAME
3914 LC_SRC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL
3916 LC_SRC_HAVE_SUBMIT_BIO_2ARGS
3917 LC_SRC_HAVE_CLEAN_BDEV_ALIASES
3920 LC_SRC_HAVE_FILE_DENTRY
3923 LC_SRC_HAVE_INODE_LOCK
3924 LC_SRC_HAVE_IOP_GET_LINK
3925 LC_SRC_HAVE_IN_COMPAT_SYSCALL
3926 LC_SRC_HAVE_XATTR_HANDLER_INODE_PARAM
3927 LC_SRC_LOCK_PAGE_MEMCG
3928 LC_SRC_HAVE_DOWN_WRITE_KILLABLE
3933 LC_SRC_DIRECTIO_2ARGS
3934 LC_SRC_GENERIC_WRITE_SYNC_2ARGS
3935 LC_SRC_FOP_ITERATE_SHARED
3938 LC_SRC_HAVE_POSIX_ACL_VALID_USER_NS
3939 LC_SRC_D_COMPARE_4ARGS
3940 LC_SRC_FULL_NAME_HASH_3ARGS
3941 LC_SRC_STRUCT_POSIX_ACL_XATTR
3945 LC_SRC_GROUP_INFO_GID
3947 LC_SRC_POSIX_ACL_UPDATE_MODE
3948 LC_SRC_HAVE_BDI_IO_PAGES
3951 LC_SRC_IOP_GENERIC_READLINK
3952 LC_SRC_HAVE_VM_FAULT_ADDRESS
3955 LC_SRC_INODEOPS_ENHANCED_GETATTR
3956 LC_SRC_VM_OPERATIONS_REMOVE_VMF_ARG
3957 LC_SRC_HAVE_KEY_USAGE_REFCOUNT
3958 LC_SRC_HAVE_CRYPTO_MAX_ALG_NAME_128
3962 LC_SRC_SUPER_SETUP_BDI_NAME
3966 LC_SRC_HAVE_GET_INODE_USAGE
3969 LC_SRC_PAGEVEC_INIT_ONE_PARAM
3971 LC_SRC_INTERVAL_TREE_CACHED
3975 LC_SRC_VM_FAULT_RETRY
3979 LC_SRC_INODE_TIMESPEC64
3980 LC_SRC_ALLOC_FILE_PSEUDO
3983 LC_SRC_RADIX_TREE_TAG_SET
3984 LC_SRC_UAPI_LINUX_MOUNT_H
3985 LC_SRC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK
3988 LC_SRC_GENL_FAMILY_HAS_RESV_START_OP
3991 LC_SRC_HAVE_BVEC_ITER_ALL
3994 LC_SRC_KEYRING_SEARCH_4ARGS
3997 LC_SRC_BIO_BI_PHYS_SEGMENTS
3998 LC_SRC_LM_COMPARE_OWNER_EXISTS
4001 LC_SRC_FSCRYPT_DIGESTED_NAME
4004 LC_SRC_FSCRYPT_DUMMY_CONTEXT_ENABLED
4007 LC_SRC_FSCRYPT_FNAME_ALLOC_BUFFER
4008 LC_SRC_FSCRYPT_SET_CONTEXT
4009 LC_SRC_FSCRYPT_NOKEY_NAME
4010 LC_SRC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG
4011 LC_SRC_FSCRYPT_DUMMY_POLICY
4012 LC_SRC_HAVE_ITER_FILE_SPLICE_WRITE
4015 LC_SRC_FSCRYPT_IS_NOKEY_NAME
4016 LC_SRC_FSCRYPT_PREPARE_READDIR
4022 LC_SRC_HAVE_USER_NAMESPACE_ARG
4025 LC_SRC_HAVE_GET_ACL_RCU_ARG
4028 LC_SRC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG
4029 LC_SRC_HAVE_KIOCB_COMPLETE_2ARGS
4032 LC_SRC_HAVE_INVALIDATE_FOLIO
4033 LC_SRC_HAVE_DIRTY_FOLIO
4036 LC_SRC_HAVE_ALLOC_INODE_SB
4039 LC_SRC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS
4040 LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO
4041 LC_SRC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE
4042 LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO
4043 LC_SRC_HAVE_LSMCONTEXT_INIT
4044 LC_SRC_SECURITY_DENTRY_INIT_SECURTY_WITH_CTX
4047 LC_SRC_HAVE_NO_LLSEEK
4048 LC_SRC_DQUOT_TRANSFER_WITH_USER_NS
4049 LC_SRC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO
4050 LC_SRC_REGISTER_SHRINKER_FORMAT_NAMED
4051 LC_SRC_HAVE_VFS_SETXATTR_NON_CONST_VALUE
4052 LC_SRC_HAVE_IOV_ITER_GET_PAGES_ALLOC2
4055 LC_SRC_HAVE_GET_RANDOM_U32_AND_U64
4056 LC_SRC_NFS_FILLDIR_USE_CTX_RETURN_BOOL
4057 LC_SRC_HAVE_FILEMAP_GET_FOLIOS_CONTIG
4060 LC_SRC_HAVE_GET_RANDOM_U32_BELOW
4061 LC_SRC_HAVE_ACL_WITH_DENTRY
4064 LC_SRC_HAVE_U64_CAPABILITY
4066 # kernel patch to extend integrity interface
4067 LC_SRC_BIO_INTEGRITY_PREP_FN
4070 AC_DEFUN([LC_PROG_LINUX_RESULTS], [
4071 AS_IF([test "x$enable_gss" != xno], [
4072 LC_KEY_TYPE_INSTANTIATE_2ARGS
4074 LB2_TEST_CHECK_CONFIG_IM([CRYPTO_MD5], [],
4076 [kernel MD5 support is recommended by using GSS.])])
4077 LB2_TEST_CHECK_CONFIG_IM([CRYPTO_SHA1], [],
4079 [kernel SHA1 support is recommended by using GSS.])])
4080 LB2_TEST_CHECK_CONFIG_IM([CRYPTO_SHA256], [],
4082 [kernel SHA256 support is recommended by using GSS.])])
4083 LB2_TEST_CHECK_CONFIG_IM([CRYPTO_SHA512], [],
4085 [kernel SHA512 support is recommended by using GSS.])])
4087 AS_IF([test "x$enable_server" != xno], [
4093 LC_HAVE_PROJECT_QUOTA
4100 LC_HAVE_DENTRY_D_U_D_ALIAS_LIST
4101 LC_HAVE_DENTRY_D_U_D_ALIAS_HLIST
4102 LC_HAVE_DENTRY_D_CHILD
4103 LC_PID_NS_FOR_CHILDREN
4106 LC_OLDSIZE_TRUNCATE_PAGECACHE
4107 LC_PTR_ERR_OR_ZERO_MISSING
4109 LC_REGISTER_SHRINKER_RET
4114 LC_HAVE_D_IS_POSITIVE
4118 LC_HAVE_TRUNCATE_IPAGES_FINAL
4119 LC_IOPS_RENAME_WITH_FLAGS
4126 LC_DIRECTIO_USE_ITER
4127 LC_HAVE_IOV_ITER_INIT_DIRECTION
4128 LC_HAVE_IOV_ITER_TRUNCATE
4129 LC_HAVE_FILE_OPERATIONS_READ_WRITE_ITER
4130 LC_PAGECACHE_GET_PAGE
4133 LC_HAVE_INTERVAL_BLK_INTEGRITY
4135 LC_HAVE_BLK_INTEGRITY_ITER
4138 LC_PERCPU_COUNTER_INIT
4139 LC_NFS_FILLDIR_USE_CTX
4143 LC_HAVE_DQUOT_QC_DQBLK
4144 LC_HAVE_AIO_COMPLETE
4145 LC_HAVE_IS_ROOT_INODE
4148 LC_BACKING_DEV_INFO_REMOVAL
4155 LC_BIO_ENDIO_USES_ONE_ARG
4156 LC_SYMLINK_OPS_USE_NAMEIDATA
4157 LC_ACCOUNT_PAGE_DIRTIED_3ARGS
4158 LC_HAVE_CRYPTO_ALLOC_SKCIPHER
4161 LC_HAVE_INTERVAL_EXP_BLK_INTEGRITY
4162 LC_HAVE_BIP_ITER_BIO_INTEGRITY_PAYLOAD
4163 LC_HAVE_CACHE_HEAD_HLIST
4164 LC_HAVE_XATTR_HANDLER_SIMPLIFIED
4167 LC_HAVE_LOCKS_LOCK_FILE_WAIT
4168 LC_HAVE_KEY_PAYLOAD_DATA_ARRAY
4169 LC_HAVE_XATTR_HANDLER_NAME
4171 LC_HAVE_SUBMIT_BIO_2ARGS
4172 LC_HAVE_CLEAN_BDEV_ALIASES
4179 LC_HAVE_IOP_GET_LINK
4182 LC_HAVE_IN_COMPAT_SYSCALL
4183 LC_HAVE_XATTR_HANDLER_INODE_PARAM
4185 LC_HAVE_DOWN_WRITE_KILLABLE
4191 LC_GENERIC_WRITE_SYNC_2ARGS
4192 LC_FOP_ITERATE_SHARED
4195 LC_HAVE_POSIX_ACL_VALID_USER_NS
4197 LC_FULL_NAME_HASH_3ARGS
4198 LC_STRUCT_POSIX_ACL_XATTR
4204 LC_POSIX_ACL_UPDATE_MODE
4205 LC_HAVE_BDI_IO_PAGES
4208 LC_IOP_GENERIC_READLINK
4209 LC_HAVE_VM_FAULT_ADDRESS
4212 LC_INODEOPS_ENHANCED_GETATTR
4213 LC_VM_OPERATIONS_REMOVE_VMF_ARG
4214 LC_HAVE_KEY_USAGE_REFCOUNT
4215 LC_HAVE_CRYPTO_MAX_ALG_NAME_128
4219 LC_SUPER_SETUP_BDI_NAME
4223 LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL
4224 LC_HAVE_GET_INODE_USAGE
4227 LC_PAGEVEC_INIT_ONE_PARAM
4229 LC_INTERVAL_TREE_CACHED
4237 LC_ALLOC_FILE_PSEUDO
4241 LC_RADIX_TREE_TAG_SET
4242 LC_UAPI_LINUX_MOUNT_H
4243 LC_HAVE_SUNRPC_CACHE_HASH_LOCK_IS_A_SPINLOCK
4246 LC_GENL_FAMILY_HAS_RESV_START_OP
4249 LC_HAVE_BVEC_ITER_ALL
4252 LC_KEYRING_SEARCH_4ARGS
4255 LC_BIO_BI_PHYS_SEGMENTS
4256 LC_LM_COMPARE_OWNER_EXISTS
4259 LC_FSCRYPT_DIGESTED_NAME
4262 LC_FSCRYPT_DUMMY_CONTEXT_ENABLED
4265 LC_HAVE_ITER_FILE_SPLICE_WRITE
4268 LC_FSCRYPT_FNAME_ALLOC_BUFFER
4269 LC_FSCRYPT_SET_CONTEXT
4270 LC_FSCRYPT_D_REVALIDATE
4271 LC_FSCRYPT_NOKEY_NAME
4272 LC_FSCRYPT_SET_TEST_DUMMY_ENC_CHAR_ARG
4273 LC_FSCRYPT_DUMMY_POLICY
4276 LC_FSCRYPT_IS_NOKEY_NAME
4277 LC_FSCRYPT_PREPARE_READDIR
4283 LC_HAVE_USER_NAMESPACE_ARG
4286 LC_HAVE_FILEATTR_GET
4289 LC_HAVE_GET_ACL_RCU_ARG
4290 LC_HAVE_INVALIDATE_LOCK
4293 LC_HAVE_SECURITY_DENTRY_INIT_WITH_XATTR_NAME_ARG
4294 LC_HAVE_KIOCB_COMPLETE_2ARGS
4295 LC_EXPORTS_DELETE_FROM_PAGE_CACHE
4298 LC_HAVE_INVALIDATE_FOLIO
4302 LC_HAVE_ALLOC_INODE_SB
4305 LC_GRAB_CACHE_PAGE_WRITE_BEGIN_WITH_FLAGS
4306 LC_HAVE_ADDRESS_SPACE_OPERATIONS_READ_FOLIO
4307 LC_HAVE_READ_CACHE_PAGE_FILLER_WITH_FILE
4308 LC_HAVE_ADDRESS_SPACE_OPERATIONS_RELEASE_FOLIO
4309 LC_HAVE_LSMCONTEXT_INIT
4310 LC_SECURITY_DENTRY_INIT_SECURTY_WITH_CTX
4314 LC_DQUOT_TRANSFER_WITH_USER_NS
4315 LC_HAVE_ADDRESS_SPACE_OPERATIONS_MIGRATE_FOLIO
4316 LC_REGISTER_SHRINKER_FORMAT_NAMED
4317 LC_HAVE_VFS_SETXATTR_NON_CONST_VALUE
4318 LC_HAVE_IOV_ITER_GET_PAGES_ALLOC2
4321 LC_HAVE_GET_RANDOM_U32_AND_U64
4322 LC_NFS_FILLDIR_USE_CTX_RETURN_BOOL
4323 LC_HAVE_FILEMAP_GET_FOLIOS_CONTIG
4326 LC_HAVE_GET_RANDOM_U32_BELOW
4327 LC_HAVE_ACL_WITH_DENTRY
4330 LC_HAVE_U64_CAPABILITY
4332 # kernel patch to extend integrity interface
4333 LC_BIO_INTEGRITY_PREP_FN
4339 # Lustre linux kernel checks
4341 AC_DEFUN([LC_PROG_LINUX], [
4342 AC_MSG_NOTICE([Lustre kernel checks
4343 ==============================================================================])
4348 LC_CONFIG_HEALTH_CHECK_WRITE
4349 LC_CONFIG_LRU_RESIZE
4352 LC_GLIBC_SUPPORT_FHANDLES
4353 LC_GLIBC_SUPPORT_COPY_FILE_RANGE
4357 # 4.1.0 - Check export
4358 LC_HAVE_SYNC_READ_WRITE
4360 # 4.8 - Check export
4361 LC_EXPORT_DEFAULT_FILE_SPLICE_READ
4363 # 5.2 - Check export
4364 LC_ACCOUNT_PAGE_DIRTIED
4371 # Check whether to build the client side of Lustre
4373 AC_DEFUN([LC_CONFIG_CLIENT], [
4374 AC_MSG_CHECKING([whether to build Lustre client support])
4375 AC_ARG_ENABLE([client],
4376 AS_HELP_STRING([--disable-client],
4377 [disable Lustre client support]),
4378 [], [enable_client="yes"])
4379 AC_MSG_RESULT([$enable_client])
4380 ]) # LC_CONFIG_CLIENT
4385 AC_DEFUN([LB_CONFIG_MPITESTS], [
4386 AC_ARG_ENABLE([mpitests],
4387 AS_HELP_STRING([--enable-mpitests=<yes|no|mpicc wrapper>],
4388 [include mpi tests]), [
4389 enable_mpitests="yes"
4392 MPICC_WRAPPER="mpicc"
4393 MPI_BIN=$(eval which $MPICC_WRAPPER | xargs dirname)
4396 enable_mpitests="no"
4400 MPICC_WRAPPER=$enableval
4401 MPI_BIN=$(eval echo $MPICC_WRAPPER | xargs dirname)
4405 enable_mpitests="yes"
4406 MPICC_WRAPPER="mpicc"
4407 MPI_BIN=$(eval which $MPICC_WRAPPER | xargs dirname)
4410 if test "x$enable_mpitests" != "xno"; then
4413 AC_CACHE_CHECK([whether mpitests can be built],
4414 lb_cv_mpi_tests, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([
4418 MPI_Initialized(&flag);
4421 ])], [lb_cv_mpi_tests="yes"], [lb_cv_mpi_tests="no"])
4423 enable_mpitests=$lb_cv_mpi_tests
4427 AC_SUBST(MPICC_WRAPPER)
4428 ]) # LB_CONFIG_MPITESTS
4433 # whether to enable quota support global control
4435 AC_DEFUN([LC_ENABLE_QUOTA], [
4436 AC_MSG_CHECKING([whether to enable quota support global control])
4437 AC_ARG_ENABLE([quota],
4438 AS_HELP_STRING([--enable-quota],
4439 [enable quota support]),
4440 [], [enable_quota="yes"])
4441 AS_IF([test "x$enable_quota" = xyes],
4442 [AC_MSG_RESULT([yes])],
4443 [AC_MSG_RESULT([no])])
4444 ]) # LC_ENABLE_QUOTA
4449 AC_DEFUN([LC_QUOTA], [
4453 AS_IF([test "x$enable_quota" != xno -a "x$enable_utils" != xno], [
4454 AC_CHECK_HEADER([sys/quota.h],
4455 [AC_DEFINE(HAVE_SYS_QUOTA_H, 1,
4456 [Define to 1 if you have <sys/quota.h>.])],
4457 [AC_MSG_ERROR([did not find <sys/quota.h> on your system])])
4464 # configure support for optional OSD implementation
4466 AC_DEFUN([LC_OSD_ADDON], [
4467 AC_MSG_CHECKING([whether to use OSD addon])
4469 AS_HELP_STRING([--with-osd=path],
4470 [set path to optional osd]),
4477 OSDADDON="$with_osd"
4484 AS_IF([test $ENABLEOSDADDON -eq 0], [
4488 OSDMODNAME=$(basename $OSDADDON)
4489 AS_IF([test -e $LUSTRE/$OSDMODNAME], [
4490 AC_MSG_RESULT([cannot link])
4492 ], [ln -s $OSDADDON $LUSTRE/$OSDMODNAME], [
4493 AC_MSG_RESULT([$OSDMODNAME])
4494 OSDADDON="obj-m += $OSDMODNAME/"
4496 AC_MSG_RESULT([cannot link])
4506 # Check whether to enable Lustre client crypto
4508 AC_DEFUN([LC_CONFIG_CRYPTO], [
4509 AC_MSG_CHECKING([whether to enable Lustre client crypto])
4510 AC_ARG_ENABLE([crypto],
4511 AS_HELP_STRING([--enable-crypto=yes|no|in-kernel],
4512 [enable Lustre client crypto (default is yes), use 'in-kernel' to force use of in-kernel fscrypt instead of embedded llcrypt]),
4513 [], [enable_crypto="auto"])
4514 AS_IF([test "x$enable_crypto" != xno -a "x$enable_dist" = xno], [
4518 LC_FSCRYPT_SUPPORT])
4519 AS_IF([test "x$enable_crypto" = xin-kernel], [
4520 AS_IF([test "x$has_fscrypt_support" = xyes], [
4521 AC_DEFINE(HAVE_LUSTRE_CRYPTO, 1, [Enable Lustre client crypto via in-kernel fscrypt])], [
4522 AC_MSG_ERROR([Lustre client crypto cannot be enabled via in-kernel fscrypt.])
4523 enable_crypto=no])],
4524 [AS_IF([test "x$has_is_encrypted" = xyes], [
4525 AC_DEFINE(HAVE_LUSTRE_CRYPTO, 1, [Enable Lustre client crypto via embedded llcrypt])
4526 AC_DEFINE(CONFIG_LL_ENCRYPTION, 1, [embedded llcrypt])
4527 AC_DEFINE(HAVE_FSCRYPT_DUMMY_CONTEXT_ENABLED, 1, [embedded llcrypt uses llcrypt_dummy_context_enabled()])
4528 enable_crypto="embedded-llcrypt"
4529 enable_llcrypt=yes], [
4530 AS_IF([test "x$enable_crypto" = xyes],
4531 [AC_MSG_ERROR([Lustre client crypto cannot be enabled because of lack of encryption support in your kernel.])])
4532 AS_IF([test "x$enable_crypto" != xno -a "x$enable_dist" = xno],
4533 [AC_MSG_WARN(Lustre client crypto cannot be enabled because of lack of encryption support in your kernel.)])
4534 enable_crypto=no])])
4535 AS_IF([test "x$enable_dist" != xno], [
4537 enable_llcrypt=yes])
4538 AC_MSG_RESULT([$enable_crypto])
4539 ]) # LC_CONFIG_CRYPTO
4544 # other configure checks
4546 AC_DEFUN([LC_CONFIGURE], [
4547 AC_MSG_NOTICE([Lustre core checks
4548 ==============================================================================])
4550 # maximum MDS thread count
4553 # lustre/utils/gss/gss_util.c
4554 # lustre/utils/llog_reader.c
4555 # lustre/utils/create_iam.c
4556 # lustre/utils/libiam.c
4557 AC_CHECK_HEADERS([netdb.h endian.h])
4558 AC_CHECK_FUNCS([gethostbyname])
4560 # lustre/utils/llverfs.c lustre/utils/libmount_utils_ldiskfs.c
4561 AC_CHECK_HEADERS([ext2fs/ext2fs.h], [], [
4562 AS_IF([test "x$enable_utils" = xyes -a "x$enable_ldiskfs" = xyes], [
4564 ext2fs.h not found. Please install e2fsprogs development package.
4569 # lustre/tests/statx_test.c
4570 AC_CHECK_FUNCS([statx])
4572 # lustre/utils/lfs.c
4573 AS_IF([test "$enable_dist" = "no"], [
4574 AC_CHECK_LIB([z], [crc32], [
4575 AC_CHECK_HEADER([zlib.h], [], [
4576 AC_MSG_ERROR([zlib.h not found.])])
4579 zlib library not found. Please install zlib development package.])
4585 AC_CHECK_LIB([selinux], [is_selinux_enabled],
4586 [AC_CHECK_HEADERS([selinux/selinux.h],
4587 [SELINUX="-lselinux"
4588 AC_DEFINE([HAVE_SELINUX], 1,
4589 [support for selinux ])],
4592 No libselinux-devel package found, unable to build selinux enabled tools
4597 No selinux package found, unable to build selinux enabled tools
4602 AC_CHECK_LIB([keyutils], [add_key])
4605 AC_MSG_CHECKING([whether to report minimum OST free space])
4606 AC_ARG_ENABLE([mindf],
4607 AS_HELP_STRING([--enable-mindf],
4608 [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
4609 [], [enable_mindf="no"])
4610 AC_MSG_RESULT([$enable_mindf])
4611 AS_IF([test "$enable_mindf" = "yes"], [
4612 AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
4613 AC_SUBST(ENABLE_MINDF, yes)
4615 AC_SUBST(ENABLE_MINDF, no)
4618 AC_MSG_CHECKING([whether to randomly failing memory alloc])
4619 AC_ARG_ENABLE([fail_alloc],
4620 AS_HELP_STRING([--disable-fail-alloc],
4621 [disable randomly alloc failure]),
4622 [], [enable_fail_alloc="yes"])
4623 AC_MSG_RESULT([$enable_fail_alloc])
4624 AS_IF([test "x$enable_fail_alloc" != xno], [
4625 AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
4626 AC_SUBST(ENABLE_FAIL_ALLOC, yes)
4628 AC_SUBST(ENABLE_FAIL_ALLOC, no)
4631 AC_MSG_CHECKING([whether to check invariants (expensive cpu-wise)])
4632 AC_ARG_ENABLE([invariants],
4633 AS_HELP_STRING([--enable-invariants],
4634 [enable invariant checking (cpu intensive)]),
4635 [], [enable_invariants="no"])
4636 AC_MSG_RESULT([$enable_invariants])
4637 AS_IF([test "x$enable_invariants" = xyes], [
4638 AC_DEFINE([CONFIG_LUSTRE_DEBUG_EXPENSIVE_CHECK], 1,
4639 [enable invariant checking])
4640 AC_SUBST(ENABLE_INVARIANTS, yes)
4642 AC_SUBST(ENABLE_INVARIANTS, no)
4645 AC_MSG_CHECKING([whether to track references with lu_ref])
4646 AC_ARG_ENABLE([lu_ref],
4647 AS_HELP_STRING([--enable-lu_ref],
4648 [enable lu_ref reference tracking code]),
4649 [], [enable_lu_ref="no"])
4650 AC_MSG_RESULT([$enable_lu_ref])
4651 AS_IF([test "x$enable_lu_ref" = xyes], [
4652 AC_DEFINE([CONFIG_LUSTRE_DEBUG_LU_REF], 1,
4653 [enable lu_ref reference tracking code])
4654 AC_SUBST(ENABLE_LU_REF, yes)
4656 AC_SUBST(ENABLE_LU_REF, no)
4659 AC_MSG_CHECKING([whether to enable page state tracking])
4660 AC_ARG_ENABLE([pgstate-track],
4661 AS_HELP_STRING([--enable-pgstate-track],
4662 [enable page state tracking]),
4663 [], [enable_pgstat_track="no"])
4664 AC_MSG_RESULT([$enable_pgstat_track])
4665 AS_IF([test "x$enable_pgstat_track" = xyes], [
4666 AC_DEFINE([CONFIG_DEBUG_PAGESTATE_TRACKING], 1,
4667 [enable page state tracking code])
4668 AC_SUBST(ENABLE_PGSTAT_TRACK, yes)
4670 AC_SUBST(ENABLE_PGSTAT_TRACK, no)
4674 AC_MSG_CHECKING([systemd unit file directory])
4675 AC_ARG_WITH([systemdsystemunitdir],
4676 [AS_HELP_STRING([--with-systemdsystemunitdir=DIR],
4677 [Directory for systemd service files])],
4678 [], [with_systemdsystemunitdir=auto])
4679 AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"],
4680 [def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
4681 AS_IF([test "x$def_systemdsystemunitdir" = "x"],
4682 [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
4683 [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
4684 with_systemdsystemunitdir=no],
4685 [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
4686 AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
4687 [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
4688 AC_MSG_RESULT([$with_systemdsystemunitdir])
4690 AC_MSG_CHECKING([bash-completion directory])
4691 AC_ARG_WITH([bash-completion-dir],
4692 AS_HELP_STRING([--with-bash-completion-dir[=PATH]],
4693 [Install the bash auto-completion script in this directory.]),
4695 [with_bash_completion_dir=yes])
4696 AS_IF([test "x$with_bash_completion_dir" = "xyes"], [
4697 BASH_COMPLETION_DIR="`pkg-config --variable=completionsdir bash-completion`"
4698 AS_IF([test "x$BASH_COMPLETION_DIR" = "x"], [
4699 [BASH_COMPLETION_DIR="/usr/share/bash-completion/completions"]
4702 BASH_COMPLETION_DIR="$with_bash_completion_dir"
4704 AC_SUBST([BASH_COMPLETION_DIR])
4705 AC_MSG_RESULT([$BASH_COMPLETION_DIR])
4711 # AM_CONDITIONALS for lustre
4713 AC_DEFUN([LC_CONDITIONALS], [
4714 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
4715 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
4716 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
4717 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
4718 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
4719 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
4720 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
4721 AM_CONDITIONAL(GSS_SSK, test x$enable_ssk = xyes)
4722 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
4723 AM_CONDITIONAL(HAVE_SYSTEMD, test "x$with_systemdsystemunitdir" != "xno")
4724 AM_CONDITIONAL(ENABLE_BASH_COMPLETION, test "x$with_bash_completion_dir" != "xno")
4725 AM_CONDITIONAL(XATTR_HANDLER, test "x$lb_cv_compile_xattr_handler_flags" = xyes)
4726 AM_CONDITIONAL(SELINUX, test "$SELINUX" = "-lselinux")
4727 AM_CONDITIONAL(GETSEPOL, test x$enable_getsepol = xyes)
4728 AM_CONDITIONAL(LLCRYPT, test x$enable_llcrypt = xyes)
4729 AM_CONDITIONAL(LIBAIO, test x$enable_libaio = xyes)
4730 ]) # LC_CONDITIONALS
4735 # files that should be generated with AC_OUTPUT
4737 AC_DEFUN([LC_CONFIG_FILES],
4741 lustre/autoconf/Makefile
4742 lustre/conf/Makefile
4743 lustre/conf/resource/Makefile
4745 lustre/include/Makefile
4746 lustre/include/lustre/Makefile
4747 lustre/include/uapi/linux/lustre/Makefile
4748 lustre/kernel_patches/targets/5.14-rhel9.2.target
4749 lustre/kernel_patches/targets/5.14-rhel9.1.target
4750 lustre/kernel_patches/targets/5.14-rhel9.0.target
4751 lustre/kernel_patches/targets/4.18-rhel8.8.target
4752 lustre/kernel_patches/targets/4.18-rhel8.7.target
4753 lustre/kernel_patches/targets/4.18-rhel8.6.target
4754 lustre/kernel_patches/targets/4.18-rhel8.5.target
4755 lustre/kernel_patches/targets/4.18-rhel8.4.target
4756 lustre/kernel_patches/targets/4.18-rhel8.3.target
4757 lustre/kernel_patches/targets/4.18-rhel8.2.target
4758 lustre/kernel_patches/targets/4.18-rhel8.1.target
4759 lustre/kernel_patches/targets/4.18-rhel8.target
4760 lustre/kernel_patches/targets/3.10-rhel7.9.target
4761 lustre/kernel_patches/targets/3.10-rhel7.8.target
4762 lustre/kernel_patches/targets/3.10-rhel7.7.target
4763 lustre/kernel_patches/targets/3.10-rhel7.6.target
4764 lustre/kernel_patches/targets/3.10-rhel7.5.target
4765 lustre/kernel_patches/targets/4.14-rhel7.5.target
4766 lustre/kernel_patches/targets/4.14-rhel7.6.target
4767 lustre/kernel_patches/targets/4.12-sles12sp4.target
4768 lustre/kernel_patches/targets/4.12-sles12sp5.target
4769 lustre/kernel_patches/targets/4.12-sles15sp1.target
4770 lustre/kernel_patches/targets/5.3-sles15sp2.target
4771 lustre/kernel_patches/targets/5.3-sles15sp3.target
4772 lustre/kernel_patches/targets/5.14-sles15sp4.target
4773 lustre/kernel_patches/targets/3.x-fc18.target
4774 lustre/kernel_patches/targets/5.10-oe2203.target
4775 lustre/kernel_patches/targets/5.10-oe2203sp1.target
4776 lustre/ldlm/Makefile
4777 lustre/ldlm/autoMakefile
4778 lustre/ec/autoMakefile
4781 lustre/fid/autoMakefile
4782 lustre/llite/Makefile
4783 lustre/llite/autoMakefile
4785 lustre/lov/autoMakefile
4787 lustre/mdc/autoMakefile
4789 lustre/lmv/autoMakefile
4790 lustre/lfsck/Makefile
4791 lustre/lfsck/autoMakefile
4793 lustre/mdt/autoMakefile
4795 lustre/mdd/autoMakefile
4797 lustre/fld/autoMakefile
4798 lustre/obdclass/Makefile
4799 lustre/obdclass/autoMakefile
4800 lustre/obdecho/Makefile
4801 lustre/obdecho/autoMakefile
4803 lustre/ofd/autoMakefile
4805 lustre/osc/autoMakefile
4807 lustre/ost/autoMakefile
4808 lustre/osd-ldiskfs/Makefile
4809 lustre/osd-ldiskfs/autoMakefile
4810 lustre/osd-zfs/Makefile
4811 lustre/osd-zfs/autoMakefile
4813 lustre/mgc/autoMakefile
4815 lustre/mgs/autoMakefile
4816 lustre/target/Makefile
4817 lustre/target/autoMakefile
4818 lustre/ptlrpc/Makefile
4819 lustre/ptlrpc/autoMakefile
4820 lustre/ptlrpc/gss/Makefile
4821 lustre/ptlrpc/gss/autoMakefile
4822 lustre/quota/Makefile
4823 lustre/quota/autoMakefile
4824 lustre/scripts/Makefile
4825 lustre/scripts/systemd/Makefile
4826 lustre/tests/Makefile
4827 lustre/tests/mpi/Makefile
4828 lustre/tests/iabf/Makefile
4829 lustre/tests/lutf/Makefile
4830 lustre/tests/lutf/src/Makefile
4831 lustre/tests/kernel/Makefile
4832 lustre/tests/kernel/autoMakefile
4833 lustre/utils/Makefile
4834 lustre/utils/gss/Makefile
4836 lustre/osp/autoMakefile
4838 lustre/lod/autoMakefile
4840 ]) # LC_CONFIG_FILES