4 AC_DEFUN([LDISKFS_LINUX_SERIES], [
5 AC_MSG_CHECKING([which ldiskfs series to use])
6 case x$LDISKFS_SERIES in
9 *.series) # set externally
13 AS_IF([test -z "$LDISKFS_SERIES"], [
14 AS_IF([test x$RHEL_KERNEL = xyes], [
15 case $RHEL_RELEASE_NO in
16 90) LDISKFS_SERIES="5.14-rhel9.series" ;;
17 87) LDISKFS_SERIES="4.18-rhel8.7.series" ;;
18 86) LDISKFS_SERIES="4.18-rhel8.6.series" ;;
19 85) LDISKFS_SERIES="4.18-rhel8.5.series" ;;
20 84) LDISKFS_SERIES="4.18-rhel8.4.series" ;;
21 83) LDISKFS_SERIES="4.18-rhel8.3.series" ;;
22 82) LDISKFS_SERIES="4.18-rhel8.2.series" ;;
23 81) LDISKFS_SERIES="4.18-rhel8.1.series" ;;
24 80) LDISKFS_SERIES="4.18-rhel8.series" ;;
25 79) LDISKFS_SERIES="3.10-rhel7.9.series" ;;
26 78) LDISKFS_SERIES="3.10-rhel7.8.series" ;;
27 77) LDISKFS_SERIES="3.10-rhel7.7.series" ;;
28 76) LDISKFS_SERIES="3.10-rhel7.6.series" ;;
30 ], [test x$SUSE_KERNEL = xyes], [
31 AS_VERSION_COMPARE([$LINUXRELEASE],[5.3.18],[
32 AS_VERSION_COMPARE([$LINUXRELEASE],[4.12.14],[], [], [
33 suse_conf=$LINUX_OBJ/include/generated/uapi/linux/suse_version.h
34 suse_vers=$(awk '[$]2 == "SUSE_VERSION" {print [$]3 }' $suse_conf)
35 suse_patchlevel=$(awk '[$]2 == "SUSE_PATCHLEVEL" {print [$]3 }' $suse_conf)
36 case ${suse_vers}sp$suse_patchlevel in # (
37 15sp0 ) LDISKFS_SERIES="4.12-sles15.series"
38 if test ! -f $LINUX/arch/x86/kernel/cpu/hygon.c ; then
39 # This file was added shortly after -150.22 so
40 # this must be 150.22 or earlier
41 LDISKFS_SERIES="4.12-sles15-22.series"
44 15sp1 ) LDISKFS_SERIES="4.12-sles15sp1.series"
45 if test ! -f $LINUX/arch/x86/kernel/cpu/umwait.c ; then
46 # This file was added after -197.7 so
47 # this must be -197.7 or earlier
48 LDISKFS_SERIES="4.12-sles15sp1-7.series"
53 )], [LDISKFS_SERIES="5.4.21-ml.series"],
55 suse_conf=$LINUX_OBJ/include/generated/uapi/linux/suse_version.h
56 suse_vers=$(awk '[$]2 == "SUSE_VERSION" {print [$]3 }' $suse_conf)
57 suse_patchlevel=$(awk '[$]2 == "SUSE_PATCHLEVEL" {print [$]3 }' $suse_conf)
58 case ${suse_vers}sp${suse_patchlevel} in # (
59 15sp2 ) LDISKFS_SERIES="5.4.21-ml.series"
60 grep -A3 ext4_update_dx_flag $LINUX/fs/ext4/ext4.h \
61 | grep ext4_test_inode_flag
62 if test $? -eq 0; then
63 LDISKFS_SERIES="5.4.0-66-ubuntu20.series"
66 15sp3 ) LDISKFS_SERIES="5.3.18-sles15sp3.series"
68 15sp4 ) LDISKFS_SERIES="5.14.21-sles15sp4.series"
72 ], [test x$UBUNTU_KERNEL = xyes], [
73 BASEVER=$(echo $LINUXRELEASE | cut -d'-' -f1)
74 AS_VERSION_COMPARE([$BASEVER],[5.11.0],[
75 AS_VERSION_COMPARE([$BASEVER],[5.8.0],[
76 AS_VERSION_COMPARE([$BASEVER],[5.4.0],[
77 AS_VERSION_COMPARE([$BASEVER],[5.0.0],[
78 AS_VERSION_COMPARE([$BASEVER],[4.15.0],[
79 AS_VERSION_COMPARE([$BASEVER],[4.4.0], [],
81 KPLEV=$(echo $LINUXRELEASE | cut -d'-' -f2)
84 AC_MSG_WARN([Failed to determine Kernel patch level. Assume latest.])
85 LDISKFS_SERIES="4.4.0-73-ubuntu14+16.series"
87 [test $KPLEV -ge 73], [LDISKFS_SERIES="4.4.0-73-ubuntu14+16.series"],
88 [test $KPLEV -ge 62], [LDISKFS_SERIES="4.4.0-62-ubuntu14+16.series"],
89 [test $KPLEV -ge 49], [LDISKFS_SERIES="4.4.0-49-ubuntu14+16.series"],
90 [LDISKFS_SERIES="4.4.0-45-ubuntu14+16.series"]
93 [LDISKFS_SERIES="4.4.0-73-ubuntu14+16.series"])],
95 KPLEV=$(echo $LINUXRELEASE | cut -d'-' -f2)
98 AC_MSG_WARN([Failed to determine Kernel patch level. Assume latest.])
99 LDISKFS_SERIES="4.15.0-24-ubuntu18.series"
101 [test $KPLEV -ge 24], [LDISKFS_SERIES="4.15.0-24-ubuntu18.series"],
102 [test $KPLEV -ge 20], [LDISKFS_SERIES="4.15.0-20-ubuntu18.series"]
105 [LDISKFS_SERIES="4.15.0-24-ubuntu18.series"])],
106 [LDISKFS_SERIES="5.0.0-13-ubuntu19.series"],
107 [LDISKFS_SERIES="5.0.0-13-ubuntu19.series"])],
109 KPLEV=$(echo $LINUXRELEASE | cut -d'-' -f2)
111 [test -z "$KPLEV"], [
112 AC_MSG_WARN([Failed to determine Kernel patch level. Assume latest.])
113 LDISKFS_SERIES="5.4.0-90-ubuntu20.series"
115 [test $KPLEV -eq 1007], [LDISKFS_SERIES="5.4.0-42-ubuntu20.series"],
116 [test $KPLEV -ge 90], [LDISKFS_SERIES="5.4.0-90-ubuntu20.series"],
117 [test $KPLEV -ge 80], [LDISKFS_SERIES="5.4.0-80-ubuntu20.series"],
118 [test $KPLEV -ge 66], [LDISKFS_SERIES="5.4.0-66-ubuntu20.series"],
119 [LDISKFS_SERIES="5.4.0-42-ubuntu20.series"]
122 [LDISKFS_SERIES="5.4.0-ml.series"])],
124 KPLEV=$(echo $LINUXRELEASE | cut -d'-' -f2)
126 [test -z "$KPLEV"], [
127 AC_MSG_WARN([Failed to determine Kernel patch level. Assume latest.])
128 LDISKFS_SERIES="5.8.0-63-ubuntu20.series"
130 [test $KPLEV -ge 63], [LDISKFS_SERIES="5.8.0-63-ubuntu20.series"],
131 [LDISKFS_SERIES="5.8.0-53-ubuntu20.series"]
134 [LDISKFS_SERIES="5.8.0-ml.series"])],
135 [LDISKFS_SERIES="5.11.0-40-ubuntu20.series"],
136 [LDISKFS_SERIES="5.11.0-40-ubuntu20.series"])
139 # Not RHEL/SLES or Ubuntu .. probably mainline
140 AS_IF([test -z "$LDISKFS_SERIES"],
142 AS_VERSION_COMPARE([$LINUXRELEASE],[5.4.0],[],
143 [LDISKFS_SERIES="5.4.0-ml.series"],[
144 AS_VERSION_COMPARE([$LINUXRELEASE],[5.4.21],
145 [LDISKFS_SERIES="5.4.0-ml.series"], # lt
146 [LDISKFS_SERIES="5.4.21-ml.series"], # eq
147 [AS_VERSION_COMPARE([$LINUXRELEASE],[5.8.0],
148 [LDISKFS_SERIES="5.4.136-ml.series"], # lt
149 [LDISKFS_SERIES="5.8.0-ml.series"], # eq
150 [AS_VERSION_COMPARE([$LINUXRELEASE],[5.9.0],
151 [LDISKFS_SERIES="5.8.0-ml.series"], # lt
152 [LDISKFS_SERIES="5.9.0-ml.series"], # eq
153 [AS_VERSION_COMPARE([$LINUXRELEASE],[5.10.0],
154 [LDISKFS_SERIES="5.9.0-ml.series"], # lt
155 [LDISKFS_SERIES="5.10.0-ml.series"], # eq
156 [LDISKFS_SERIES="5.10.0-ml.series"], # gt
163 AS_IF([test -z "$LDISKFS_SERIES"],
164 [AC_MSG_RESULT([failed to identify series])],
165 [AC_MSG_RESULT([$LDISKFS_SERIES for $LINUXRELEASE])])
166 AC_SUBST(LDISKFS_SERIES)
167 ]) # LDISKFS_LINUX_SERIES
170 # LB_EXT_FREE_BLOCKS_WITH_BUFFER_HEAD
172 # 2.6.32-rc7 ext4_free_blocks requires struct buffer_head
173 # Note that RHEL6 is pre 2.6.32-rc7 so this check is still needed.
175 AC_DEFUN([LB_SRC_EXT_FREE_BLOCKS_WITH_BUFFER_HEAD], [
176 LB2_LINUX_TEST_SRC([ext4_free_blocks_with_buffer_head], [
177 #include <linux/fs.h>
178 #include "$EXT4_SRC_DIR/ext4.h"
180 ext4_free_blocks(NULL, NULL, NULL, 0, 0, 0);
181 ],[],[],[ext4_free_blocks])
183 AC_DEFUN([LB_EXT_FREE_BLOCKS_WITH_BUFFER_HEAD], [
184 AC_MSG_CHECKING([if 'ext4_free_blocks' needs 'struct buffer_head'])
185 LB2_LINUX_TEST_RESULT([ext4_free_blocks_with_buffer_head], [
186 AC_DEFINE(HAVE_EXT_FREE_BLOCK_WITH_BUFFER_HEAD, 1,
187 [ext4_free_blocks do not require struct buffer_head])
189 ]) # LB_EXT_FREE_BLOCKS_WITH_BUFFER_HEAD
192 # LB_EXT4_JOURNAL_START_3ARGS
194 # 3.9 added a type argument to ext4_journal_start and friends
196 AC_DEFUN([LB_SRC_EXT4_JOURNAL_START_3ARGS], [
197 LB2_LINUX_TEST_SRC([ext4_journal_start], [
198 #include <linux/fs.h>
199 #include "$EXT4_SRC_DIR/ext4_jbd2.h"
201 ext4_journal_start(NULL, 0, 0);
202 ],[],[],[__ext4_journal_start_sb])
204 AC_DEFUN([LB_EXT4_JOURNAL_START_3ARGS], [
205 AC_MSG_CHECKING([if ext4_journal_start takes 3 arguments])
206 LB2_LINUX_TEST_RESULT([ext4_journal_start], [
207 AC_DEFINE(JOURNAL_START_HAS_3ARGS, 1,
208 [ext4_journal_start takes 3 arguments])
210 ]) # LB_EXT4_JOURNAL_START_3ARGS
213 # LB_EXT4_BREAD_4ARGS
215 # 3.18 ext4_bread has 4 arguments
216 # NOTE: It may not be exported for modules, use a positive compiler test here.
218 AC_DEFUN([LB_SRC_EXT4_BREAD_4ARGS], [
219 LB2_LINUX_TEST_SRC([ext4_bread], [
220 #include <linux/fs.h>
221 #include "$EXT4_SRC_DIR/ext4.h"
223 struct buffer_head *ext4_bread(handle_t *handle,
225 ext4_lblk_t block, int map_flags)
227 struct buffer_head *bh = NULL;
235 ext4_bread(NULL, NULL, 0, 0);
236 ],[],[],[ext4_bread])
238 AC_DEFUN([LB_EXT4_BREAD_4ARGS], [
239 AC_MSG_CHECKING([if ext4_bread takes 4 arguments])
240 LB2_LINUX_TEST_RESULT([ext4_bread], [
241 AC_DEFINE(HAVE_EXT4_BREAD_4ARGS, 1,
242 [ext4_bread takes 4 arguments])
244 ]) # LB_EXT4_BREAD_4ARGS
247 # LB_EXT4_HAVE_INFO_DQUOT
249 # in linux 4.4 i_dqout is in ext4_inode_info, not in struct inode
251 AC_DEFUN([LB_SRC_EXT4_HAVE_INFO_DQUOT], [
252 LB2_LINUX_TEST_SRC([ext4_info_dquot], [
253 #include <linux/fs.h>
254 #include <linux/quota.h>
255 #include "$EXT4_SRC_DIR/ext4.h"
257 struct ext4_inode_info in;
263 AC_DEFUN([LB_EXT4_HAVE_INFO_DQUOT], [
264 AC_MSG_CHECKING([if i_dquot is in ext4_inode_info])
265 LB2_LINUX_TEST_RESULT([ext4_info_dquot], [
266 AC_DEFINE(HAVE_EXT4_INFO_DQUOT, 1,
267 [i_dquot is in ext4_inode_info])
269 ]) # LB_EXT4_HAVE_INFO_DQUOT
272 # LB_EXT4_HAVE_I_CRYPT_INFO
274 # in linux 4.8 i_crypt_info moved from ext4_inode_info to struct inode
276 # Determine if we need to enable CONFIG_LDISKFS_FS_ENCRYPTION.
277 # If we have i_crypt_info in ext4_inode_info, the config option
278 # should be enabled to make the ldiskfs module compilation happy.
279 # Otherwise i_crypy_info is in struct inode, we need to check kernel
280 # config option to determine that.
282 AC_DEFUN([LB_SRC_EXT4_HAVE_I_CRYPT_INFO], [
283 LB2_SRC_CHECK_CONFIG([EXT4_FS_ENCRYPTION])
284 LB2_LINUX_TEST_SRC([ext4_i_crypt_info], [
285 #define CONFIG_EXT4_FS_ENCRYPTION 1
286 #include <linux/fs.h>
287 #include "$EXT4_SRC_DIR/ext4.h"
289 struct ext4_inode_info in;
291 in.i_crypt_info = NULL;
294 AC_DEFUN([LB_EXT4_HAVE_I_CRYPT_INFO], [
295 AC_MSG_CHECKING([if i_crypt_info is in ext4_inode_info])
296 LB2_LINUX_TEST_RESULT([ext4_i_crypt_info], [
297 AC_DEFINE(CONFIG_LDISKFS_FS_ENCRYPTION, 1,
298 [enable encryption for ldiskfs])
299 test_have_i_crypt_info=yes
301 test_have_i_crypt_info=no
303 AS_IF([test x$test_have_i_crypt_info = xno], [
304 LB2_TEST_CHECK_CONFIG([EXT4_FS_ENCRYPTION],[
305 AC_DEFINE(CONFIG_LDISKFS_FS_ENCRYPTION, 1,
306 [enable encryption for ldiskfs])
309 ]) # LB_EXT4_HAVE_I_CRYPT_INFO
312 # LB_LDISKFS_JOURNAL_ENSURE_CREDITS
314 # kernel 4.18.0-240.1.1.el8 and
315 # kernel 5.4 commit a413036791d040e33badcc634453a4d0c0705499
317 # ext4_journal_ensure_credits was introduced to ensure given handle
318 # has at least requested amount of credits available, and possibly
319 # restarting transaction if needed.
321 AC_DEFUN([LB_SRC_LDISKFS_JOURNAL_ENSURE_CREDITS], [
322 LB2_LINUX_TEST_SRC([ext4_journal_ensure_credits], [
323 #include "$EXT4_SRC_DIR/ext4_jbd2.h"
324 int __ext4_journal_ensure_credits(handle_t *handle, int check_cred,
325 int extend_cred, int revoke_cred) { return 0; }
327 ext4_journal_ensure_credits(NULL, 0, 0);
328 ],[-Werror],[],[__ext4_journal_ensure_credits])
330 AC_DEFUN([LB_LDISKFS_JOURNAL_ENSURE_CREDITS], [
331 AC_MSG_CHECKING([if 'ext4_journal_ensure_credits' exists])
332 LB2_LINUX_TEST_RESULT([ext4_journal_ensure_credits], [
333 AC_DEFINE(HAVE_LDISKFS_JOURNAL_ENSURE_CREDITS, 1,
334 ['ext4_journal_ensure_credits' exists])
336 ]) # LB_LDISKFS_JOURNAL_ENSURE_CREDITS
339 # LB_LDISKFS_IGET_HAS_FLAGS_ARG
341 # kernel 4.19 commit 8a363970d1dc38c4ec4ad575c862f776f468d057
342 # ext4_iget changed to a macro with 3 args was function with 2 args
344 AC_DEFUN([LB_SRC_LDISKFS_IGET_HAS_FLAGS_ARG], [
345 LB2_LINUX_TEST_SRC([ext4_iget_3args], [
346 #include <linux/fs.h>
347 #include "$EXT4_SRC_DIR/ext4.h"
349 int f = EXT4_IGET_SPECIAL;
353 AC_DEFUN([LB_LDISKFS_IGET_HAS_FLAGS_ARG], [
354 AC_MSG_CHECKING([if ldiskfs_iget takes a flags argument])
355 LB2_LINUX_TEST_RESULT([ext4_iget_3args], [
356 AC_DEFINE(HAVE_LDISKFS_IGET_WITH_FLAGS, 1,
357 [if ldiskfs_iget takes a flags argument])
359 ]) # LB_LDISKFS_IGET_HAS_FLAGS_ARG
362 # LDISKFS_AC_PATCH_PROGRAM
364 # Determine which program should be used to apply the patches to
365 # the ext4 source code to produce the ldiskfs source code.
367 AC_DEFUN([LDISKFS_AC_PATCH_PROGRAM], [
368 AC_ARG_ENABLE([quilt],
369 [AS_HELP_STRING([--disable-quilt],
370 [disable use of quilt for ldiskfs])],
371 [AS_IF([test "x$enableval" = xno],
377 AS_IF([test x$use_quilt = xmaybe], [
378 AC_PATH_PROG([quilt_avail], [quilt], [no])
379 AS_IF([test x$quilt_avail = xno], [
386 AS_IF([test x$use_quilt = xno], [
387 AC_PATH_PROG([patch_avail], [patch], [no])
388 AS_IF([test x$patch_avail = xno], [
389 AC_MSG_ERROR([*** Need "quilt" or "patch" command])
392 ]) # LDISKFS_AC_PATCH_PROGRAM
395 # LB_LDISKFS_FIND_ENTRY_LOCKED_EXISTS
397 # kernel 5.2 commit 8a363970d1dc38c4ec4ad575c862f776f468d057
398 # ext4: avoid declaring fs inconsistent due to invalid file handles
399 # __ext4_find_entry became a helper function for ext4_find_entry
400 # conflicting with previous ldiskfs patches.
401 # ldiskfs patches map ext4_find_entry to ldiskfs_find_entry_locked to
402 # avoid conflicting with __ext4_find_entry
404 # When the following check succeeds __ext4_find_entry helper is not
407 AC_DEFUN([LB_SRC_LDISKFS_FIND_ENTRY_LOCKED_EXISTS], [
408 LB2_LINUX_TEST_SRC([ldiskfs_find_entry_locked], [
409 #include <linux/fs.h>
410 #include "$EXT4_SRC_DIR/ext4.h"
411 #include "$EXT4_SRC_DIR/namei.c"
413 static int __ext4_find_entry(void) { return 0; }
415 int x = __ext4_find_entry();
419 AC_DEFUN([LB_LDISKFS_FIND_ENTRY_LOCKED_EXISTS], [
420 AC_MSG_CHECKING([if __ldiskfs_find_entry is available])
421 LB2_LINUX_TEST_RESULT([ldiskfs_find_entry_locked], [
422 AC_DEFINE(HAVE___LDISKFS_FIND_ENTRY, 1,
423 [if __ldiskfs_find_entry is available])
425 ]) # LB_LDISKFS_FIND_ENTRY_LOCKED_EXISTS
428 # LB_LDISKFSFS_DIRHASH_WANTS_DIR
430 # kernel 5.2 commit 8a363970d1dc38c4ec4ad575c862f776f468d057
431 # ext4fs_dirhash UNICODE support
433 AC_DEFUN([LB_SRC_LDISKFSFS_DIRHASH_WANTS_DIR], [
434 LB2_LINUX_TEST_SRC([ext4fs_dirhash], [
435 #include <linux/fs.h>
436 #include "$EXT4_SRC_DIR/ext4.h"
438 int f = ext4fs_dirhash(NULL, NULL, 0, NULL);
440 ],[-Werror],[],[ext4fs_dirhash])
442 AC_DEFUN([LB_LDISKFSFS_DIRHASH_WANTS_DIR], [
443 AC_MSG_CHECKING([if ldiskfsfs_dirhash takes an inode argument])
444 LB2_LINUX_TEST_RESULT([ext4fs_dirhash], [
445 AC_DEFINE(HAVE_LDISKFSFS_DIRHASH_WITH_DIR, 1,
446 [if ldiskfsfs_dirhash takes an inode argument])
448 ]) # LB_LDISKFSFS_DIRHASH_WANTS_DIR
451 # LB_JBD2_H_TOTAL_CREDITS
453 # kernel 5.5 commit 933f1c1e0b75bbc29730eef07c9e196c6dfd37e5
454 # jbd2: Reserve space for revoke descriptor blocks
456 AC_DEFUN([LB_SRC_JBD2_H_TOTAL_CREDITS], [
457 LB2_LINUX_TEST_SRC([handle_t_h_revoke_credits], [
458 #include <linux/jbd2.h>
460 int x = offsetof(struct jbd2_journal_handle, h_total_credits);
464 AC_DEFUN([LB_JBD2_H_TOTAL_CREDITS], [
465 AC_MSG_CHECKING([if struct jbd2_journal_handle has h_total_credits member])
466 LB2_LINUX_TEST_RESULT([handle_t_h_revoke_credits], [
467 AC_DEFINE(HAVE_JOURNAL_TOTAL_CREDITS, 1,
468 [struct jbd2_journal_handle has h_total_credits member])
470 ]) # LB_JBD2_H_TOTAL_CREDITS
473 # LB_EXT4_INC_DEC_COUNT_2ARGS
475 # Linux v5.9-rc7-8-g15ed2851b0f4
476 # ext4: remove unused argument from ext4_(inc|dec)_count
478 AC_DEFUN([LB_EXT4_INC_DEC_COUNT_2ARGS], [
479 AC_MSG_CHECKING([if ext4_(inc|dec)_count() have 2 arguments])
480 AS_IF([grep -q -E 'void ext4_inc_count.handle_t \*handle' $EXT4_SRC_DIR/namei.c],[
481 AC_DEFINE(HAVE_EXT4_INC_DEC_COUNT_2ARGS, 1,
482 [ext4_(inc|dec)_count() has 2 arguments])
487 ]) # LB_EXT4_INC_DEC_COUNT_2ARGS
490 # LB_JBD2_JOURNAL_GET_MAX_TXN_BUFS
491 # Linux commit v5.10-rc2-9-gede7dc7fa0af
492 # jbd2: rename j_maxlen to j_total_len and add jbd2_journal_max_txn_bufs
494 AC_DEFUN([LB_SRC_JBD2_JOURNAL_GET_MAX_TXN_BUFS], [
495 LB2_LINUX_TEST_SRC([jbd2_journal_get_max_txn_bufs], [
496 #include <linux/jbd2.h>
498 journal_t *journal = NULL;
499 int x = jbd2_journal_get_max_txn_bufs(journal);
503 AC_DEFUN([LB_JBD2_JOURNAL_GET_MAX_TXN_BUFS], [
504 AC_MSG_CHECKING([if jbd2_journal_get_max_txn_bufs is available])
505 LB2_LINUX_TEST_RESULT([jbd2_journal_get_max_txn_bufs], [
506 AC_DEFINE(HAVE_JBD2_JOURNAL_GET_MAX_TXN_BUFS, 1,
507 [if jbd2_journal_get_max_txn_bufs is available])
509 ]) # LB_JBD2_JOURNAL_GET_MAX_TXN_BUFS
512 # LB_EXT4_JOURNAL_GET_WRITE_ACCESS_4A
514 # Linux v5.14-rc2-19-g188c299e2a26
515 # ext4: Support for checksumming from journal triggers
517 AC_DEFUN([LB_EXT4_JOURNAL_GET_WRITE_ACCESS_4A], [
518 tmp_flags="$EXTRA_KCFLAGS"
519 EXTRA_KCFLAGS="-Werror"
520 LB_CHECK_COMPILE([if jbd2_journal_get_max_txn_bufs is available],
521 ext4_journal_get_write_access, [
522 #include <linux/fs.h>
523 #include "$EXT4_SRC_DIR/ext4.h"
524 #include "$EXT4_SRC_DIR/ext4_jbd2.h"
526 int __ext4_journal_get_write_access(const char *where, unsigned int line,
528 struct super_block *sb,
529 struct buffer_head *bh,
530 enum ext4_journal_trigger_type trigger_type)
535 handle_t *handle = NULL;
536 struct super_block *sb = NULL;
537 struct buffer_head *bh = NULL;
538 enum ext4_journal_trigger_type trigger_type = EXT4_JTR_NONE;
539 int err = ext4_journal_get_write_access(handle, sb, bh, trigger_type);
543 AC_DEFINE(HAVE_EXT4_JOURNAL_GET_WRITE_ACCESS_4ARGS, 1,
544 [ext4_journal_get_write_access() has 4 arguments])
546 EXTRA_KCFLAGS="$tmp_flags"
547 ]) # LB_EXT4_JOURNAL_GET_WRITE_ACCESS_4A
552 AC_DEFUN([LB_CONFIG_LDISKFS], [
553 # --with-ldiskfs is deprecated now that ldiskfs is fully merged with lustre.
554 # However we continue to support this option through Lustre 2.5.
555 AC_ARG_WITH([ldiskfs],
557 [AC_MSG_WARN([--with-ldiskfs is deprecated, please use --enable-ldiskfs])
558 AS_IF([test x$withval != xyes -a x$withval != xno],
561 The ldiskfs option is deprecated,
562 and no longer supports paths to external ldiskfs source
566 AC_ARG_ENABLE([ldiskfs],
567 [AS_HELP_STRING([--disable-ldiskfs],
568 [disable ldiskfs osd (default is enable)])],
569 [AS_IF([test x$enable_ldiskfs != xyes -a x$enable_ldiskfs != xno],
570 [AC_MSG_ERROR([ldiskfs valid options are "yes" or "no"])])],
571 [AS_IF([test "${with_ldiskfs+set}" = set],
572 [enable_ldiskfs=$with_ldiskfs],
573 [enable_ldiskfs=maybe])
576 AS_IF([test x$enable_server = xno],
577 [AS_CASE([$enable_ldiskfs],
578 [maybe], [enable_ldiskfs=no],
579 [yes], [AC_MSG_ERROR([cannot build ldiskfs when servers are disabled])]
582 AS_IF([test x$enable_ldiskfs != xno],[
583 # In the future, we chould change enable_ldiskfs from maybe to
584 # either yes or no based on additional tests, e.g. whether a patch
585 # set is available for the detected kernel. For now, we just always
587 AS_IF([test x$enable_ldiskfs = xmaybe], [enable_ldiskfs=yes])
588 AC_SUBST(ENABLE_LDISKFS, yes)
591 LDISKFS_AC_PATCH_PROGRAM
592 LB_EXT_FREE_BLOCKS_WITH_BUFFER_HEAD
593 LB_EXT4_JOURNAL_START_3ARGS
595 LB_EXT4_HAVE_INFO_DQUOT
596 LB_EXT4_HAVE_I_CRYPT_INFO
597 LB_LDISKFS_JOURNAL_ENSURE_CREDITS
598 LB_LDISKFS_IGET_HAS_FLAGS_ARG
599 LB_LDISKFS_FIND_ENTRY_LOCKED_EXISTS
600 LB_LDISKFSFS_DIRHASH_WANTS_DIR
601 LB_JBD2_H_TOTAL_CREDITS
602 LB_EXT4_INC_DEC_COUNT_2ARGS
603 LB_JBD2_JOURNAL_GET_MAX_TXN_BUFS
604 LB_EXT4_JOURNAL_GET_WRITE_ACCESS_4A
605 AC_DEFINE(CONFIG_LDISKFS_FS_POSIX_ACL, 1, [posix acls for ldiskfs])
606 AC_DEFINE(CONFIG_LDISKFS_FS_SECURITY, 1, [fs security for ldiskfs])
607 AC_DEFINE(CONFIG_LDISKFS_FS_XATTR, 1, [extened attributes for ldiskfs])
608 AC_DEFINE(CONFIG_LDISKFS_FS_RW, 1, [enable rw access for ldiskfs])
609 AC_SUBST(LDISKFS_SUBDIR, ldiskfs)
610 AC_DEFINE(HAVE_LDISKFS_OSD, 1, Enable ldiskfs osd)
612 AC_SUBST(ENABLE_LDISKFS, no)
615 AC_MSG_CHECKING([whether to build ldiskfs])
616 AC_MSG_RESULT([$enable_ldiskfs])
618 AM_CONDITIONAL([LDISKFS_ENABLED], [test x$enable_ldiskfs = xyes])
619 ]) # LB_CONFIG_LDISKFS
621 AS_IF([test x$enable_ldiskfs != xno],[
622 AC_DEFUN([LB_EXT4_SRC_DIR_SRC],[
623 LB_SRC_EXT_FREE_BLOCKS_WITH_BUFFER_HEAD
624 LB_SRC_EXT4_JOURNAL_START_3ARGS
625 LB_SRC_EXT4_BREAD_4ARGS
626 LB_SRC_EXT4_HAVE_INFO_DQUOT
627 LB_SRC_EXT4_HAVE_I_CRYPT_INFO
628 LB_SRC_LDISKFS_JOURNAL_ENSURE_CREDITS
629 LB_SRC_LDISKFS_IGET_HAS_FLAGS_ARG
630 LB_SRC_LDISKFS_FIND_ENTRY_LOCKED_EXISTS
631 LB_SRC_LDISKFSFS_DIRHASH_WANTS_DIR
632 LB_SRC_JBD2_H_TOTAL_CREDITS
633 LB_SRC_JBD2_JOURNAL_GET_MAX_TXN_BUFS
635 LB2_LINUX_TEST_COMPILE_ALL([ldiskfs],
636 [for available ldiskfs ext4 interfaces])
638 AC_DEFUN([LB_EXT4_SRC_DIR_RESULTS], [
639 LB_EXT_FREE_BLOCKS_WITH_BUFFER_HEAD
640 LB_EXT4_JOURNAL_START_3ARGS
642 LB_EXT4_HAVE_INFO_DQUOT
643 LB_EXT4_HAVE_I_CRYPT_INFO
644 LB_LDISKFS_JOURNAL_ENSURE_CREDITS
645 LB_LDISKFS_IGET_HAS_FLAGS_ARG
646 LB_LDISKFS_FIND_ENTRY_LOCKED_EXISTS
647 LB_LDISKFSFS_DIRHASH_WANTS_DIR
648 LB_JBD2_H_TOTAL_CREDITS
649 LB_JBD2_JOURNAL_GET_MAX_TXN_BUFS
654 # LB_VALIDATE_EXT4_SRC_DIR
656 # Spot check the existence of several source files common to ext4.
657 # Detecting this at configure time allows us to avoid a potential build
658 # failure and provide a useful error message to explain what is wrong.
660 AC_DEFUN([LB_VALIDATE_EXT4_SRC_DIR], [
661 enable_ldiskfs_build="no"
662 AS_IF([test -n "$EXT4_SRC_DIR"], [
663 enable_ldiskfs_build="yes"
664 LB_CHECK_FILE([$EXT4_SRC_DIR/dir.c], [], [
665 enable_ldiskfs_build="no"
666 AC_MSG_WARN([ext4 must exist for ldiskfs build])
668 LB_CHECK_FILE([$EXT4_SRC_DIR/file.c], [], [
669 enable_ldiskfs_build="no"
670 AC_MSG_WARN([ext4 must exist for ldiskfs build])
672 LB_CHECK_FILE([$EXT4_SRC_DIR/inode.c], [], [
673 enable_ldiskfs_build="no"
674 AC_MSG_WARN([ext4 must exist for ldiskfs build])
676 LB_CHECK_FILE([$EXT4_SRC_DIR/super.c], [], [
677 enable_ldiskfs_build="no"
678 AC_MSG_WARN([ext4 must exist for ldiskfs build])
682 AS_IF([test "x$enable_ldiskfs_build" = xno], [
687 Disabling ldiskfs support because complete ext4 source does not exist.
689 If you are building using kernel-devel packages and require ldiskfs
690 server support then ensure that the matching kernel-debuginfo-common
691 and kernel-debuginfo-common-<arch> packages are installed.
694 ]) # LB_VALIDATE_EXT4_SRC_DIR
699 # Determine the location of the ext4 source code. It it required
700 # for several configure tests and to build ldiskfs.
702 AC_DEFUN([LB_EXT4_SRC_DIR], [
703 AC_MSG_CHECKING([ext4 source directory])
704 # Kernel ext source located with devel headers
706 AS_IF([test -e "$linux_src/fs/ext4/super.c"], [
707 EXT4_SRC_DIR="$linux_src/fs/ext4"
709 # Kernel ext source provided by kernel-debuginfo-common package
710 # that extracted to $LINUX
711 linux_src=$(ls -1d $linux_src/../../debug/*/linux-${LINUXRELEASE%.*}* \
712 2>/dev/null | tail -1)
713 AS_IF([test -e "$linux_src/fs/ext4/super.c"], [
714 EXT4_SRC_DIR="$linux_src/fs/ext4"
716 # Kernel ext source provided by kernel-debuginfo-common package
717 linux_src=$(ls -1d /usr/src/debug/*/linux-${LINUXRELEASE%.*}* \
718 2>/dev/null | tail -1)
719 AS_IF([test -e "$linux_src/fs/ext4/super.c"], [
720 EXT4_SRC_DIR="$linux_src/fs/ext4"
726 AC_MSG_RESULT([$EXT4_SRC_DIR])
727 AC_SUBST(EXT4_SRC_DIR)
729 LB_VALIDATE_EXT4_SRC_DIR
733 # LB_DEFINE_E2FSPROGS_NAMES
735 # Enable the use of alternate naming of ldiskfs-enabled e2fsprogs package.
737 AC_DEFUN([LB_DEFINE_E2FSPROGS_NAMES], [
738 AC_MSG_CHECKING([whether to use alternate names for e2fsprogs])
739 AC_ARG_WITH([ldiskfsprogs],
740 AS_HELP_STRING([--with-ldiskfsprogs],
741 [use alternate names for ldiskfs-enabled e2fsprogs]),
744 AS_IF([test "x$withval" = xyes], [
745 AC_MSG_RESULT([enabled])
746 AC_DEFINE(HAVE_LDISKFSPROGS, 1, [enable use of ldiskfsprogs package])
747 E2FSPROGS="ldiskfsprogs"
748 MKE2FS="mkfs.ldiskfs"
749 DEBUGFS="debugfs.ldiskfs"
750 TUNE2FS="tunefs.ldiskfs"
751 E2LABEL="label.ldiskfs"
752 DUMPE2FS="dumpfs.ldiskfs"
753 E2FSCK="fsck.ldiskfs"
754 PFSCK="pfsck.ldiskfs"
756 AC_MSG_RESULT([disabled])
757 E2FSPROGS="e2fsprogs"
767 AC_DEFINE_UNQUOTED(E2FSPROGS, "$E2FSPROGS", [name of ldiskfs e2fsprogs package])
768 AC_DEFINE_UNQUOTED(MKE2FS, "$MKE2FS", [name of ldiskfs mkfs program])
769 AC_DEFINE_UNQUOTED(DEBUGFS, "$DEBUGFS", [name of ldiskfs debug program])
770 AC_DEFINE_UNQUOTED(TUNE2FS, "$TUNE2FS", [name of ldiskfs tune program])
771 AC_DEFINE_UNQUOTED(E2LABEL, "$E2LABEL", [name of ldiskfs label program])
772 AC_DEFINE_UNQUOTED(DUMPE2FS,"$DUMPE2FS", [name of ldiskfs dump program])
773 AC_DEFINE_UNQUOTED(E2FSCK, "$E2FSCK", [name of ldiskfs fsck program])
774 AC_DEFINE_UNQUOTED(PFSCK, "$PFSCK", [name of parallel fsck program])
776 AC_SUBST([E2FSPROGS], [$E2FSPROGS])
777 AC_SUBST([MKE2FS], [$MKE2FS])
778 AC_SUBST([DEBUGFS], [$DEBUGFS])
779 AC_SUBST([TUNE2FS], [$TUNE2FS])
780 AC_SUBST([E2LABEL], [$E2LABEL])
781 AC_SUBST([DUMPE2FS], [$DUMPE2FS])
782 AC_SUBST([E2FSCK], [$E2FSCK])
783 AC_SUBST([PFSCK], [$PFSCK])
784 ]) # LB_DEFINE_E2FSPROGS_NAMES