config/lustre-build-ldiskfs.m4

   1 # SPDX-License-Identifier: GPL-2.0
   2
   3 #
   4 # This file is part of Lustre, http://www.lustre.org/
   5 #
   6 # config/lustre-build-ldiskfs.m4
   7 #
   8 # ldiskfs OSD related configuration
   9 #
  10
  11 #
  12 # LDISKFS_LINUX_SERIES
  13 #
  14 AC_DEFUN([LDISKFS_LINUX_SERIES], [
  15 AC_MSG_CHECKING([which ldiskfs series to use])
  16 case x$LDISKFS_SERIES in
  17         x)                      # not set
  18                 ;;
  19         *.series)               # set externally
  20                 ;;
  21         *) LDISKFS_SERIES=
  22 esac
  23 AS_IF([test -z "$LDISKFS_SERIES"], [
  24 AS_IF([test x$RHEL_KERNEL = xyes], [
  25         case $RHEL_RELEASE_NO in
  26         93)     LDISKFS_SERIES="5.14-rhel9.3.series"    ;;
  27         92)     LDISKFS_SERIES="5.14-rhel9.2.series"    ;;
  28         91)     LDISKFS_SERIES="5.14-rhel9.1.series"    ;;
  29         90)     LDISKFS_SERIES="5.14-rhel9.series"      ;;
  30         89)     LDISKFS_SERIES="4.18-rhel8.9.series"    ;;
  31         88)     LDISKFS_SERIES="4.18-rhel8.8.series"    ;;
  32         87)     LDISKFS_SERIES="4.18-rhel8.7.series"    ;;
  33         86)     LDISKFS_SERIES="4.18-rhel8.6.series"    ;;
  34         85)     LDISKFS_SERIES="4.18-rhel8.5.series"    ;;
  35         84)     LDISKFS_SERIES="4.18-rhel8.4.series"    ;;
  36         79)     LDISKFS_SERIES="3.10-rhel7.9.series"    ;;
  37         esac
  38 ], [test x$SUSE_KERNEL = xyes], [
  39         AS_VERSION_COMPARE([$LINUXRELEASE],[5.3.18],[
  40         AS_VERSION_COMPARE([$LINUXRELEASE],[4.12.14],[], [], [
  41                 suse_conf=$LINUX_OBJ/include/generated/uapi/linux/suse_version.h
  42                 suse_vers=$(awk '[$]2 == "SUSE_VERSION" {print [$]3 }' $suse_conf)
  43                 suse_patchlevel=$(awk '[$]2 == "SUSE_PATCHLEVEL" {print [$]3 }' $suse_conf)
  44                 case ${suse_vers}sp$suse_patchlevel in # (
  45                 15sp0 ) LDISKFS_SERIES="4.12-sles15.series"
  46                         if test ! -f $LINUX/arch/x86/kernel/cpu/hygon.c ; then
  47                                 # This file was added shortly after -150.22 so
  48                                 # this must be 150.22 or earlier
  49                                 LDISKFS_SERIES="4.12-sles15-22.series"
  50                         fi
  51                         ;; # (
  52                 15sp1 ) LDISKFS_SERIES="4.12-sles15sp1.series"
  53                         if test ! -f $LINUX/arch/x86/kernel/cpu/umwait.c ; then
  54                                 # This file was added after -197.7 so
  55                                 # this must be -197.7 or earlier
  56                                 LDISKFS_SERIES="4.12-sles15sp1-7.series"
  57                         fi
  58                         ;;
  59                 esac
  60         ]
  61         )], [LDISKFS_SERIES="5.4.21-ml.series"],
  62             [
  63                 suse_conf=$LINUX_OBJ/include/generated/uapi/linux/suse_version.h
  64                 suse_vers=$(awk '[$]2 == "SUSE_VERSION" {print [$]3 }' $suse_conf)
  65                 suse_patchlevel=$(awk '[$]2 == "SUSE_PATCHLEVEL" {print [$]3 }' $suse_conf)
  66                 case ${suse_vers}sp${suse_patchlevel} in # (
  67                 15sp2 ) LDISKFS_SERIES="5.4.21-ml.series"
  68                         grep -A3 ext4_update_dx_flag $LINUX/fs/ext4/ext4.h \
  69                           | grep ext4_test_inode_flag
  70                         if test $? -eq 0; then
  71                                 LDISKFS_SERIES="5.4.0-66-ubuntu20.series"
  72                         fi
  73                         ;; # (
  74                 15sp3 ) LDISKFS_SERIES="5.3.18-sles15sp3.series"
  75                         update=$(echo $LINUXRELEASE | cut -d- -f2 | cut -d. -f2)
  76                         if test $update -ge 59; then
  77                                 LDISKFS_SERIES="5.3.18-sles15sp3-59.series"
  78                         fi
  79                         ;;
  80                 15sp4 ) LDISKFS_SERIES="5.14.21-sles15sp4.series"
  81                         ;;
  82                 15sp5 ) LDISKFS_SERIES="5.14.21-sles15sp5.series"
  83                         ;;
  84                 esac
  85             ])
  86 ], [test x$UBUNTU_KERNEL = xyes], [
  87         BASEVER=$(echo $LINUXRELEASE | cut -d'-' -f1)
  88         AS_VERSION_COMPARE([$BASEVER],[5.15.0],[
  89         AS_VERSION_COMPARE([$BASEVER],[5.11.0],[
  90         AS_VERSION_COMPARE([$BASEVER],[5.8.0],[
  91         AS_VERSION_COMPARE([$BASEVER],[5.4.0],[
  92         AS_VERSION_COMPARE([$BASEVER],[5.0.0],[
  93         AS_VERSION_COMPARE([$BASEVER],[4.15.0],[
  94         AS_VERSION_COMPARE([$BASEVER],[4.4.0], [],
  95         [
  96                 KPLEV=$(echo $LINUXRELEASE | cut -d'-' -f2)
  97                 AS_IF(
  98                         [test -z "$KPLEV"], [
  99                                 AC_MSG_WARN([Failed to determine Kernel patch level. Assume latest.])
 100                                 LDISKFS_SERIES="4.4.0-73-ubuntu14+16.series"
 101                         ],
 102                         [test $KPLEV -ge 73], [LDISKFS_SERIES="4.4.0-73-ubuntu14+16.series"],
 103                         [test $KPLEV -ge 62], [LDISKFS_SERIES="4.4.0-62-ubuntu14+16.series"],
 104                         [test $KPLEV -ge 49], [LDISKFS_SERIES="4.4.0-49-ubuntu14+16.series"],
 105                         [LDISKFS_SERIES="4.4.0-45-ubuntu14+16.series"]
 106                 )
 107         ],
 108         [LDISKFS_SERIES="4.4.0-73-ubuntu14+16.series"])],
 109         [
 110                 KPLEV=$(echo $LINUXRELEASE | cut -d'-' -f2)
 111                 AS_IF(
 112                         [test -z "$KPLEV"], [
 113                                 AC_MSG_WARN([Failed to determine Kernel patch level. Assume latest.])
 114                                 LDISKFS_SERIES="4.15.0-24-ubuntu18.series"
 115                         ],
 116                         [test $KPLEV -ge 24], [LDISKFS_SERIES="4.15.0-24-ubuntu18.series"],
 117                         [test $KPLEV -ge 20], [LDISKFS_SERIES="4.15.0-20-ubuntu18.series"]
 118                 )
 119         ],
 120         [LDISKFS_SERIES="4.15.0-24-ubuntu18.series"])],
 121         [LDISKFS_SERIES="5.0.0-13-ubuntu19.series"],
 122         [LDISKFS_SERIES="5.0.0-13-ubuntu19.series"])],
 123         [
 124                 KPLEV=$(echo $LINUXRELEASE | cut -d'-' -f2)
 125                 AS_IF(
 126                         [test -z "$KPLEV"], [
 127                                 AC_MSG_WARN([Failed to determine Kernel patch level. Assume latest.])
 128                                 LDISKFS_SERIES="5.4.0-90-ubuntu20.series"
 129                         ],
 130                         [test $KPLEV -eq 1007], [LDISKFS_SERIES="5.4.0-42-ubuntu20.series"],
 131                         [test $KPLEV -ge 90], [LDISKFS_SERIES="5.4.0-90-ubuntu20.series"],
 132                         [test $KPLEV -ge 80], [LDISKFS_SERIES="5.4.0-80-ubuntu20.series"],
 133                         [test $KPLEV -ge 66], [LDISKFS_SERIES="5.4.0-66-ubuntu20.series"],
 134                         [LDISKFS_SERIES="5.4.0-42-ubuntu20.series"]
 135                 )
 136         ],
 137         [LDISKFS_SERIES="5.4.0-ml.series"])],
 138         [
 139                 KPLEV=$(echo $LINUXRELEASE | cut -d'-' -f2)
 140                 AS_IF(
 141                         [test -z "$KPLEV"], [
 142                                 AC_MSG_WARN([Failed to determine Kernel patch level. Assume latest.])
 143                                 LDISKFS_SERIES="5.8.0-63-ubuntu20.series"
 144                         ],
 145                         [test $KPLEV -ge 63], [LDISKFS_SERIES="5.8.0-63-ubuntu20.series"],
 146                         [LDISKFS_SERIES="5.8.0-53-ubuntu20.series"]
 147                 )
 148         ],
 149         [LDISKFS_SERIES="5.8.0-ml.series"])],
 150         [LDISKFS_SERIES="5.11.0-40-ubuntu20.series"],
 151         [LDISKFS_SERIES="5.11.0-40-ubuntu20.series"])],
 152         [LDISKFS_SERIES="5.15.0-83-ubuntu20.series"],
 153         [LDISKFS_SERIES="5.15.0-83-ubuntu20.series"])
 154 ], [test x$OPENEULER_KERNEL = xyes], [
 155         case $OPENEULER_VERSION_NO in
 156         2203.0) LDISKFS_SERIES="5.10.0-oe2203.series" ;;
 157         2203.*) LDISKFS_SERIES="5.10.0-oe2203sp1.series" ;;
 158         esac
 159 ])
 160 ])
 161 # Not RHEL/SLES/openEuler or Ubuntu .. probably mainline
 162 AS_IF([test -z "$LDISKFS_SERIES"],
 163         [
 164         AS_VERSION_COMPARE([$LINUXRELEASE],[5.4.0],[],
 165         [LDISKFS_SERIES="5.4.0-ml.series"],[
 166         AS_VERSION_COMPARE([$LINUXRELEASE],[5.4.21],
 167           [LDISKFS_SERIES="5.4.0-ml.series"],  # lt
 168           [LDISKFS_SERIES="5.4.21-ml.series"], # eq
 169           [AS_VERSION_COMPARE([$LINUXRELEASE],[5.8.0],
 170             [LDISKFS_SERIES="5.4.136-ml.series"], # lt
 171             [LDISKFS_SERIES="5.8.0-ml.series"],  # eq
 172             [AS_VERSION_COMPARE([$LINUXRELEASE],[5.9.0],
 173               [LDISKFS_SERIES="5.8.0-ml.series"],  # lt
 174               [LDISKFS_SERIES="5.9.0-ml.series"],  # eq
 175               [AS_VERSION_COMPARE([$LINUXRELEASE],[5.10.0],
 176                 [LDISKFS_SERIES="5.9.0-ml.series"],  # lt
 177                 [LDISKFS_SERIES="5.10.0-ml.series"],  # eq
 178                 [LDISKFS_SERIES="5.10.0-ml.series"],  # gt
 179               )]
 180             )]
 181           )]
 182                 )])
 183         ],
 184 [])
 185 AS_IF([test -z "$LDISKFS_SERIES"],
 186         [AC_MSG_RESULT([failed to identify series])],
 187         [AC_MSG_RESULT([$LDISKFS_SERIES for $LINUXRELEASE])])
 188 AC_SUBST(LDISKFS_SERIES)
 189 ]) # LDISKFS_LINUX_SERIES
 190
 191 #
 192 # LB_EXT4_BREAD_4ARGS
 193 #
 194 # 3.18 ext4_bread has 4 arguments
 195 # NOTE: It may not be exported for modules, use a positive compiler test here.
 196 #
 197 AC_DEFUN([LB_SRC_EXT4_BREAD_4ARGS], [
 198         LB2_LINUX_TEST_SRC([ext4_bread], [
 199                 #include <linux/fs.h>
 200                 #include "$EXT4_SRC_DIR/ext4.h"
 201
 202                 struct buffer_head *ext4_bread(handle_t *handle,
 203                                                struct inode *inode,
 204                                                ext4_lblk_t block, int map_flags)
 205                 {
 206                         struct buffer_head *bh = NULL;
 207                         (void)handle;
 208                         (void)inode;
 209                         (void)block;
 210                         (void)map_flags;
 211                         return bh;
 212                 }
 213         ],[
 214                 ext4_bread(NULL, NULL, 0, 0);
 215         ],[],[],[ext4_bread])
 216 ])
 217 AC_DEFUN([LB_EXT4_BREAD_4ARGS], [
 218         LB2_MSG_LINUX_TEST_RESULT([if ext4_bread takes 4 arguments],
 219         [ext4_bread], [
 220                 AC_DEFINE(HAVE_EXT4_BREAD_4ARGS, 1,
 221                         [ext4_bread takes 4 arguments])
 222         ])
 223 ]) # LB_EXT4_BREAD_4ARGS
 224
 225 #
 226 # LB_EXT4_HAVE_INFO_DQUOT
 227 #
 228 # in linux 4.4 i_dqout is in ext4_inode_info, not in struct inode
 229 #
 230 AC_DEFUN([LB_SRC_EXT4_HAVE_INFO_DQUOT], [
 231         LB2_LINUX_TEST_SRC([ext4_info_dquot], [
 232                 #include <linux/fs.h>
 233                 #include <linux/quota.h>
 234                 #include "$EXT4_SRC_DIR/ext4.h"
 235         ],[
 236                 struct ext4_inode_info in;
 237                 struct dquot *dq;
 238
 239                 dq = in.i_dquot[0];
 240         ])
 241 ])
 242 AC_DEFUN([LB_EXT4_HAVE_INFO_DQUOT], [
 243         LB2_MSG_LINUX_TEST_RESULT([if i_dquot is in ext4_inode_info],
 244         [ext4_info_dquot], [
 245                 AC_DEFINE(HAVE_EXT4_INFO_DQUOT, 1,
 246                         [i_dquot is in ext4_inode_info])
 247         ])
 248 ]) # LB_EXT4_HAVE_INFO_DQUOT
 249
 250 #
 251 # LB_EXT4_HAVE_I_CRYPT_INFO
 252 #
 253 # in linux 4.8 i_crypt_info moved from ext4_inode_info to struct inode
 254 #
 255 # Determine if we need to enable CONFIG_LDISKFS_FS_ENCRYPTION.
 256 # If we have i_crypt_info in ext4_inode_info, the config option
 257 # should be enabled to make the ldiskfs module compilation happy.
 258 # Otherwise i_crypy_info is in struct inode, we need to check kernel
 259 # config option to determine that.
 260 #
 261 AC_DEFUN([LB_SRC_EXT4_HAVE_I_CRYPT_INFO], [
 262         LB2_SRC_CHECK_CONFIG([EXT4_FS_ENCRYPTION])
 263         LB2_LINUX_TEST_SRC([ext4_i_crypt_info], [
 264                 #define CONFIG_EXT4_FS_ENCRYPTION 1
 265                 #include <linux/fs.h>
 266                 #include "$EXT4_SRC_DIR/ext4.h"
 267         ],[
 268                 struct ext4_inode_info in;
 269
 270                 in.i_crypt_info = NULL;
 271         ])
 272 ])
 273 AC_DEFUN([LB_EXT4_HAVE_I_CRYPT_INFO], [
 274         LB2_MSG_LINUX_TEST_RESULT([if i_crypt_info is in ext4_inode_info],
 275         [ext4_i_crypt_info], [
 276                 AC_DEFINE(CONFIG_LDISKFS_FS_ENCRYPTION, 1,
 277                         [enable encryption for ldiskfs])
 278                 test_have_i_crypt_info=yes
 279         ],[
 280                 test_have_i_crypt_info=no
 281         ])
 282         AS_IF([test x$test_have_i_crypt_info = xno], [
 283                 LB2_TEST_CHECK_CONFIG([EXT4_FS_ENCRYPTION],[
 284                         AC_DEFINE(CONFIG_LDISKFS_FS_ENCRYPTION, 1,
 285                                 [enable encryption for ldiskfs])
 286                 ])
 287         ])
 288 ]) # LB_EXT4_HAVE_I_CRYPT_INFO
 289
 290 #
 291 # LB_LDISKFS_JOURNAL_ENSURE_CREDITS
 292 #
 293 # kernel 4.18.0-240.1.1.el8 and
 294 # kernel 5.4 commit a413036791d040e33badcc634453a4d0c0705499
 295 #
 296 # ext4_journal_ensure_credits was introduced to ensure given handle
 297 # has at least requested amount of credits available, and possibly
 298 # restarting transaction if needed.
 299 #
 300 AC_DEFUN([LB_SRC_LDISKFS_JOURNAL_ENSURE_CREDITS], [
 301         LB2_LINUX_TEST_SRC([ext4_journal_ensure_credits], [
 302                 #include "$EXT4_SRC_DIR/ext4_jbd2.h"
 303                 int __ext4_journal_ensure_credits(handle_t *handle, int check_cred,
 304                         int extend_cred, int revoke_cred) { return 0; }
 305         ],[
 306                 ext4_journal_ensure_credits(NULL, 0, 0);
 307         ],[-Werror],[],[__ext4_journal_ensure_credits])
 308 ])
 309 AC_DEFUN([LB_LDISKFS_JOURNAL_ENSURE_CREDITS], [
 310         LB2_MSG_LINUX_TEST_RESULT([if 'ext4_journal_ensure_credits' exists],
 311         [ext4_journal_ensure_credits], [
 312                 AC_DEFINE(HAVE_LDISKFS_JOURNAL_ENSURE_CREDITS, 1,
 313                         ['ext4_journal_ensure_credits' exists])
 314         ])
 315 ]) # LB_LDISKFS_JOURNAL_ENSURE_CREDITS
 316
 317 #
 318 # LB_LDISKFS_IGET_HAS_FLAGS_ARG
 319 #
 320 # kernel 4.19 commit 8a363970d1dc38c4ec4ad575c862f776f468d057
 321 # ext4_iget changed to a macro with 3 args was function with 2 args
 322 #
 323 AC_DEFUN([LB_SRC_LDISKFS_IGET_HAS_FLAGS_ARG], [
 324         LB2_LINUX_TEST_SRC([ext4_iget_3args], [
 325                 #include <linux/fs.h>
 326                 #include "$EXT4_SRC_DIR/ext4.h"
 327         ],[
 328                 int f = EXT4_IGET_SPECIAL;
 329                 (void)f;
 330         ],[-Werror])
 331 ])
 332 AC_DEFUN([LB_LDISKFS_IGET_HAS_FLAGS_ARG], [
 333         LB2_MSG_LINUX_TEST_RESULT([if ldiskfs_iget takes a flags argument],
 334         [ext4_iget_3args], [
 335                 AC_DEFINE(HAVE_LDISKFS_IGET_WITH_FLAGS, 1,
 336                         [if ldiskfs_iget takes a flags argument])
 337         ])
 338 ]) # LB_LDISKFS_IGET_HAS_FLAGS_ARG
 339
 340 #
 341 # LDISKFS_AC_PATCH_PROGRAM
 342 #
 343 # Determine which program should be used to apply the patches to
 344 # the ext4 source code to produce the ldiskfs source code.
 345 #
 346 AC_DEFUN([LDISKFS_AC_PATCH_PROGRAM], [
 347         AC_ARG_ENABLE([quilt],
 348                 [AS_HELP_STRING([--disable-quilt],
 349                         [disable use of quilt for ldiskfs])],
 350                 [AS_IF([test "x$enableval" = xno],
 351                         [use_quilt=no],
 352                         [use_quilt=maybe])],
 353                 [use_quilt=maybe]
 354         )
 355
 356         AS_IF([test x$use_quilt = xmaybe], [
 357                 AC_PATH_PROG([quilt_avail], [quilt], [no])
 358                 AS_IF([test x$quilt_avail = xno], [
 359                         use_quilt=no
 360                 ], [
 361                         use_quilt=yes
 362                 ])
 363         ])
 364
 365         AS_IF([test x$use_quilt = xno], [
 366                 AC_PATH_PROG([patch_avail], [patch], [no])
 367                 AS_IF([test x$patch_avail = xno], [
 368                         AC_MSG_ERROR([*** Need "quilt" or "patch" command])
 369                 ])
 370         ])
 371 ]) # LDISKFS_AC_PATCH_PROGRAM
 372
 373 #
 374 # LB_LDISKFS_FIND_ENTRY_LOCKED_EXISTS
 375 #
 376 # kernel 5.2 commit 8a363970d1dc38c4ec4ad575c862f776f468d057
 377 # ext4: avoid declaring fs inconsistent due to invalid file handles
 378 # __ext4_find_entry became a helper function for ext4_find_entry
 379 # conflicting with previous ldiskfs patches.
 380 # ldiskfs patches map ext4_find_entry to ldiskfs_find_entry_locked to
 381 # avoid conflicting with __ext4_find_entry
 382 #
 383 # When the following check succeeds __ext4_find_entry helper is not
 384 # used.
 385 #
 386 AC_DEFUN([LB_SRC_LDISKFS_FIND_ENTRY_LOCKED_EXISTS], [
 387         LB2_LINUX_TEST_SRC([ldiskfs_find_entry_locked], [
 388                 #include <linux/fs.h>
 389                 #include "$EXT4_SRC_DIR/ext4.h"
 390                 #include "$EXT4_SRC_DIR/namei.c"
 391
 392                 static int __ext4_find_entry(void) { return 0; }
 393         ],[
 394                 int x = __ext4_find_entry();
 395                 (void)x;
 396         ],[-Werror])
 397 ])
 398 AC_DEFUN([LB_LDISKFS_FIND_ENTRY_LOCKED_EXISTS], [
 399         LB2_MSG_LINUX_TEST_RESULT([if __ldiskfs_find_entry is available],
 400         [ldiskfs_find_entry_locked], [
 401                 AC_DEFINE(HAVE___LDISKFS_FIND_ENTRY, 1,
 402                         [if __ldiskfs_find_entry is available])
 403         ])
 404 ]) # LB_LDISKFS_FIND_ENTRY_LOCKED_EXISTS
 405
 406 #
 407 # LB_LDISKFSFS_DIRHASH_WANTS_DIR
 408 #
 409 # kernel 5.2 commit 8a363970d1dc38c4ec4ad575c862f776f468d057
 410 # ext4fs_dirhash UNICODE support
 411 #
 412 AC_DEFUN([LB_SRC_LDISKFSFS_DIRHASH_WANTS_DIR], [
 413         LB2_LINUX_TEST_SRC([ext4fs_dirhash], [
 414                 #include <linux/fs.h>
 415                 #include "$EXT4_SRC_DIR/ext4.h"
 416         ],[
 417                 int f = ext4fs_dirhash(NULL, NULL, 0, NULL);
 418                 (void)f;
 419         ],[-Werror],[],[ext4fs_dirhash])
 420 ])
 421 AC_DEFUN([LB_LDISKFSFS_DIRHASH_WANTS_DIR], [
 422         LB2_MSG_LINUX_TEST_RESULT([if ldiskfsfs_dirhash takes an inode argument],
 423         [ext4fs_dirhash], [
 424                 AC_DEFINE(HAVE_LDISKFSFS_DIRHASH_WITH_DIR, 1,
 425                         [if ldiskfsfs_dirhash takes an inode argument])
 426         ])
 427 ]) # LB_LDISKFSFS_DIRHASH_WANTS_DIR
 428
 429 #
 430 # LB_JBD2_H_TOTAL_CREDITS
 431 #
 432 # kernel 5.5 commit 933f1c1e0b75bbc29730eef07c9e196c6dfd37e5
 433 # jbd2: Reserve space for revoke descriptor blocks
 434 #
 435 AC_DEFUN([LB_SRC_JBD2_H_TOTAL_CREDITS], [
 436         LB2_LINUX_TEST_SRC([handle_t_h_revoke_credits], [
 437                 #include <linux/jbd2.h>
 438         ],[
 439                 int x = offsetof(struct jbd2_journal_handle, h_total_credits);
 440                 (void)x;
 441         ],[-Werror])
 442 ])
 443 AC_DEFUN([LB_JBD2_H_TOTAL_CREDITS], [
 444         LB2_MSG_LINUX_TEST_RESULT([if struct jbd2_journal_handle has h_total_credits member],
 445         [handle_t_h_revoke_credits], [
 446                 AC_DEFINE(HAVE_JOURNAL_TOTAL_CREDITS, 1,
 447                         [struct jbd2_journal_handle has h_total_credits member])
 448         ])
 449 ]) # LB_JBD2_H_TOTAL_CREDITS
 450
 451 #
 452 # LB_EXT4_INC_DEC_COUNT_2ARGS
 453 #
 454 # Linux v5.9-rc7-8-g15ed2851b0f4
 455 # ext4: remove unused argument from ext4_(inc|dec)_count
 456 #
 457 AC_DEFUN([LB_EXT4_INC_DEC_COUNT_2ARGS], [
 458         AC_MSG_CHECKING([if ext4_(inc|dec)_count() have 2 arguments])
 459         AS_IF([grep -q -E 'void ext4_inc_count.handle_t \*handle' $EXT4_SRC_DIR/namei.c],[
 460                 AC_DEFINE(HAVE_EXT4_INC_DEC_COUNT_2ARGS, 1,
 461                         [ext4_(inc|dec)_count() has 2 arguments])
 462                 AC_MSG_RESULT(yes)
 463         ],[
 464                 AC_MSG_RESULT(no)
 465         ])
 466 ]) # LB_EXT4_INC_DEC_COUNT_2ARGS
 467
 468 #
 469 # LB_JBD2_JOURNAL_GET_MAX_TXN_BUFS
 470 # Linux commit v5.10-rc2-9-gede7dc7fa0af
 471 #  jbd2: rename j_maxlen to j_total_len and add jbd2_journal_max_txn_bufs
 472 #
 473 AC_DEFUN([LB_SRC_JBD2_JOURNAL_GET_MAX_TXN_BUFS], [
 474         LB2_LINUX_TEST_SRC([jbd2_journal_get_max_txn_bufs], [
 475                 #include <linux/jbd2.h>
 476         ],[
 477                 journal_t *journal = NULL;
 478                 int x = jbd2_journal_get_max_txn_bufs(journal);
 479                 (void)x;
 480         ],[-Werror],[],[])
 481 ])
 482 AC_DEFUN([LB_JBD2_JOURNAL_GET_MAX_TXN_BUFS], [
 483         LB2_MSG_LINUX_TEST_RESULT([if jbd2_journal_get_max_txn_bufs is available],
 484         [jbd2_journal_get_max_txn_bufs], [
 485                 AC_DEFINE(HAVE_JBD2_JOURNAL_GET_MAX_TXN_BUFS, 1,
 486                         [if jbd2_journal_get_max_txn_bufs is available])
 487         ])
 488 ]) # LB_JBD2_JOURNAL_GET_MAX_TXN_BUFS
 489
 490 #
 491 # LB_EXT4_JOURNAL_GET_WRITE_ACCESS_4A
 492 #
 493 # Linux v5.14-rc2-19-g188c299e2a26
 494 #    ext4: Support for checksumming from journal triggers
 495 #
 496 AC_DEFUN([LB_EXT4_JOURNAL_GET_WRITE_ACCESS_4A], [
 497 tmp_flags="$EXTRA_KCFLAGS"
 498 EXTRA_KCFLAGS="-Werror"
 499 LB_CHECK_COMPILE([if jbd2_journal_get_max_txn_bufs is available],
 500 ext4_journal_get_write_access, [
 501         #include <linux/fs.h>
 502         #include "$EXT4_SRC_DIR/ext4.h"
 503         #include "$EXT4_SRC_DIR/ext4_jbd2.h"
 504
 505         int __ext4_journal_get_write_access(const char *where, unsigned int line,
 506                                     handle_t *handle,
 507                                     struct super_block *sb,
 508                                     struct buffer_head *bh,
 509                                     enum ext4_journal_trigger_type trigger_type)
 510         {
 511                 return 0;
 512         }
 513 ],[
 514         handle_t *handle = NULL;
 515         struct super_block *sb = NULL;
 516         struct buffer_head *bh = NULL;
 517         enum ext4_journal_trigger_type trigger_type = EXT4_JTR_NONE;
 518         int err = ext4_journal_get_write_access(handle, sb, bh, trigger_type);
 519
 520         (void)err;
 521 ],[
 522         AC_DEFINE(HAVE_EXT4_JOURNAL_GET_WRITE_ACCESS_4ARGS, 1,
 523                 [ext4_journal_get_write_access() has 4 arguments])
 524 ])
 525 EXTRA_KCFLAGS="$tmp_flags"
 526 ]) # LB_EXT4_JOURNAL_GET_WRITE_ACCESS_4A
 527
 528 #
 529 # LB_HAVE_INODE_LOCK_SHARED
 530 #
 531 AC_DEFUN([LB_HAVE_INODE_LOCK_SHARED], [
 532 LB_CHECK_COMPILE([if inode_lock_shared() defined],
 533 inode_lock_shared, [
 534         #include <linux/fs.h>
 535 ],[
 536         struct inode i;
 537
 538         inode_lock_shared(&i);
 539 ],[
 540         AC_DEFINE(HAVE_INODE_LOCK_SHARED, 1,
 541                 [inode_lock_shared() defined])
 542 ])
 543 ]) # LB_HAVE_INODE_LOCK_SHARED
 544
 545 #
 546 # LB_HAVE_INODE_IVERSION
 547 #
 548 AC_DEFUN([LB_HAVE_INODE_IVERSION], [
 549 LB_CHECK_COMPILE([if iversion primitives defined],
 550 inode_set_iversion, [
 551         #include <linux/iversion.h>
 552 ],[
 553         struct inode i;
 554
 555         inode_set_iversion(&i, 0);
 556 ],[
 557         AC_DEFINE(HAVE_INODE_IVERSION, 1,
 558                 [iversion primitives defined])
 559 ])
 560 ]) # LB_HAVE_INODE_IVERSION
 561
 562 #
 563 # LB_CONFIG_LDISKFS
 564 #
 565 AC_DEFUN([LB_CONFIG_LDISKFS], [
 566 # --with-ldiskfs is deprecated now that ldiskfs is fully merged with lustre.
 567 # However we continue to support this option through Lustre 2.5.
 568 AC_ARG_WITH([ldiskfs],
 569         [],
 570         [AC_MSG_WARN([--with-ldiskfs is deprecated, please use --enable-ldiskfs])
 571         AS_IF([test x$withval != xyes -a x$withval != xno],
 572                 [AC_MSG_ERROR([
 573
 574 The ldiskfs option is deprecated,
 575 and no longer supports paths to external ldiskfs source
 576 ])])
 577 ])
 578
 579 AC_ARG_ENABLE([ldiskfs],
 580         [AS_HELP_STRING([--disable-ldiskfs],
 581                 [disable ldiskfs osd (default is enable)])],
 582         [AS_IF([test x$enable_ldiskfs != xyes -a x$enable_ldiskfs != xno],
 583                 [AC_MSG_ERROR([ldiskfs valid options are "yes" or "no"])])],
 584         [AS_IF([test "${with_ldiskfs+set}" = set],
 585                 [enable_ldiskfs=$with_ldiskfs],
 586                 [enable_ldiskfs=maybe])
 587 ])
 588
 589 AS_IF([test x$enable_server = xno],
 590         [AS_CASE([$enable_ldiskfs],
 591                 [maybe], [enable_ldiskfs=no],
 592                 [yes], [AC_MSG_ERROR([cannot build ldiskfs when servers are disabled])]
 593         )])
 594
 595 AS_IF([test x$enable_ldiskfs != xno],[
 596         # In the future, we chould change enable_ldiskfs from maybe to
 597         # either yes or no based on additional tests, e.g.  whether a patch
 598         # set is available for the detected kernel.  For now, we just always
 599         # set it to "yes".
 600         AS_IF([test x$enable_ldiskfs = xmaybe], [enable_ldiskfs=yes])
 601         AC_SUBST(ENABLE_LDISKFS, yes)
 602
 603         LDISKFS_LINUX_SERIES
 604         LDISKFS_AC_PATCH_PROGRAM
 605         LB_EXT4_INC_DEC_COUNT_2ARGS
 606         LB_EXT4_JOURNAL_GET_WRITE_ACCESS_4A
 607         LB_HAVE_INODE_LOCK_SHARED
 608         LB_HAVE_INODE_IVERSION
 609         AC_DEFINE(CONFIG_LDISKFS_FS_POSIX_ACL, 1, [posix acls for ldiskfs])
 610         AC_DEFINE(CONFIG_LDISKFS_FS_SECURITY, 1, [fs security for ldiskfs])
 611         AC_DEFINE(CONFIG_LDISKFS_FS_XATTR, 1, [extened attributes for ldiskfs])
 612         AC_DEFINE(CONFIG_LDISKFS_FS_RW, 1, [enable rw access for ldiskfs])
 613         AC_SUBST(LDISKFS_SUBDIR, ldiskfs)
 614         AC_DEFINE(HAVE_LDISKFS_OSD, 1, Enable ldiskfs osd)
 615 ], [
 616         AC_SUBST(ENABLE_LDISKFS, no)
 617 ])
 618
 619 AC_MSG_CHECKING([whether to build ldiskfs])
 620 AC_MSG_RESULT([$enable_ldiskfs])
 621
 622 AM_CONDITIONAL([LDISKFS_ENABLED], [test x$enable_ldiskfs = xyes])
 623 ]) # LB_CONFIG_LDISKFS
 624
 625 AS_IF([test x$enable_ldiskfs != xno],[
 626         AC_DEFUN([LB_EXT4_SRC_DIR_SRC],[
 627                 LB_SRC_EXT4_BREAD_4ARGS
 628                 LB_SRC_EXT4_HAVE_INFO_DQUOT
 629                 LB_SRC_EXT4_HAVE_I_CRYPT_INFO
 630                 LB_SRC_LDISKFS_JOURNAL_ENSURE_CREDITS
 631                 LB_SRC_LDISKFS_IGET_HAS_FLAGS_ARG
 632                 LB_SRC_LDISKFS_FIND_ENTRY_LOCKED_EXISTS
 633                 LB_SRC_LDISKFSFS_DIRHASH_WANTS_DIR
 634                 LB_SRC_JBD2_H_TOTAL_CREDITS
 635                 LB_SRC_JBD2_JOURNAL_GET_MAX_TXN_BUFS
 636                 LB2_SRC_CHECK_CONFIG_IM([FS_ENCRYPTION])
 637         ])
 638         AC_DEFUN([LB_EXT4_SRC_DIR_RESULTS], [
 639                 LB_EXT4_BREAD_4ARGS
 640                 LB_EXT4_HAVE_INFO_DQUOT
 641                 LB_EXT4_HAVE_I_CRYPT_INFO
 642                 LB_LDISKFS_JOURNAL_ENSURE_CREDITS
 643                 LB_LDISKFS_IGET_HAS_FLAGS_ARG
 644                 LB_LDISKFS_FIND_ENTRY_LOCKED_EXISTS
 645                 LB_LDISKFSFS_DIRHASH_WANTS_DIR
 646                 LB_JBD2_H_TOTAL_CREDITS
 647                 LB_JBD2_JOURNAL_GET_MAX_TXN_BUFS
 648                 LB2_TEST_CHECK_CONFIG_IM([FS_ENCRYPTION], [
 649                         EXT4_CRYPTO=],[
 650                         EXT4_CRYPTO='%/crypto.c'])
 651         ])
 652         AC_SUBST(EXT4_CRYPTO)
 653 ])
 654
 655 #
 656 # LB_VALIDATE_EXT4_SRC_DIR
 657 #
 658 # Spot check the existence of several source files common to ext4.
 659 # Detecting this at configure time allows us to avoid a potential build
 660 # failure and provide a useful error message to explain what is wrong.
 661 #
 662 AC_DEFUN([LB_VALIDATE_EXT4_SRC_DIR], [
 663 enable_ldiskfs_build="no"
 664 AS_IF([test -n "$EXT4_SRC_DIR"], [
 665         enable_ldiskfs_build="yes"
 666         LB_CHECK_FILE([$EXT4_SRC_DIR/dir.c], [], [
 667                 enable_ldiskfs_build="no"
 668                 AC_MSG_WARN([ext4 must exist for ldiskfs build])
 669         ])
 670         LB_CHECK_FILE([$EXT4_SRC_DIR/file.c], [], [
 671                 enable_ldiskfs_build="no"
 672                 AC_MSG_WARN([ext4 must exist for ldiskfs build])
 673         ])
 674         LB_CHECK_FILE([$EXT4_SRC_DIR/inode.c], [], [
 675                 enable_ldiskfs_build="no"
 676                 AC_MSG_WARN([ext4 must exist for ldiskfs build])
 677         ])
 678         LB_CHECK_FILE([$EXT4_SRC_DIR/super.c], [], [
 679                 enable_ldiskfs_build="no"
 680                 AC_MSG_WARN([ext4 must exist for ldiskfs build])
 681         ])
 682 ])
 683
 684 AS_IF([test "x$enable_ldiskfs_build" = xno], [
 685         enable_ldiskfs="no"
 686
 687         AC_MSG_WARN([
 688
 689 Disabling ldiskfs support because complete ext4 source does not exist.
 690
 691 If you are building using kernel-devel packages and require ldiskfs
 692 server support then ensure that the matching kernel-debuginfo-common
 693 and kernel-debuginfo-common-<arch> packages are installed.
 694 ])
 695 ])
 696 ]) # LB_VALIDATE_EXT4_SRC_DIR
 697
 698 #
 699 # LB_EXT4_SRC_DIR
 700 #
 701 # Determine the location of the ext4 source code.  It it required
 702 # for several configure tests and to build ldiskfs.
 703 #
 704 AC_DEFUN([LB_EXT4_SRC_DIR], [
 705 AC_MSG_CHECKING([ext4 source directory])
 706 # Kernel ext source located with devel headers
 707 linux_src=$LINUX
 708 AS_IF([test -e "$linux_src/fs/ext4/super.c"], [
 709         EXT4_SRC_DIR="$linux_src/fs/ext4"
 710 ], [
 711         # Kernel ext source provided by kernel-debuginfo-common package
 712         # that extracted to $LINUX
 713         linux_src=$(ls -1d $linux_src/../../debug/*/linux-${LINUXRELEASE%.*}* \
 714                 2>/dev/null | tail -1)
 715         AS_IF([test -e "$linux_src/fs/ext4/super.c"], [
 716                 EXT4_SRC_DIR="$linux_src/fs/ext4"
 717         ], [
 718                 # Kernel ext source provided by kernel-debuginfo-common package
 719                 linux_src=$(ls -1d /usr/src/debug/*/linux-${LINUXRELEASE%.*}* \
 720                         2>/dev/null | tail -1)
 721                 AS_IF([test -e "$linux_src/fs/ext4/super.c"], [
 722                         EXT4_SRC_DIR="$linux_src/fs/ext4"
 723                 ], [
 724                         EXT4_SRC_DIR=""
 725                 ])
 726         ])
 727 ])
 728 AC_MSG_RESULT([$EXT4_SRC_DIR])
 729 AC_SUBST(EXT4_SRC_DIR)
 730
 731 LB_VALIDATE_EXT4_SRC_DIR
 732 ]) # LB_EXT4_SRC_DIR
 733
 734 #
 735 # LB_DEFINE_E2FSPROGS_NAMES
 736 #
 737 # Enable the use of alternate naming of ldiskfs-enabled e2fsprogs package.
 738 #
 739 AC_DEFUN([LB_DEFINE_E2FSPROGS_NAMES], [
 740 AC_MSG_CHECKING([whether to use alternate names for e2fsprogs])
 741 AC_ARG_WITH([ldiskfsprogs],
 742         AS_HELP_STRING([--with-ldiskfsprogs],
 743                 [use alternate names for ldiskfs-enabled e2fsprogs]),
 744         [], [withval="no"])
 745
 746 AS_IF([test "x$withval" = xyes], [
 747         AC_MSG_RESULT([enabled])
 748         AC_DEFINE(HAVE_LDISKFSPROGS, 1, [enable use of ldiskfsprogs package])
 749         E2FSPROGS="ldiskfsprogs"
 750         MKE2FS="mkfs.ldiskfs"
 751         DEBUGFS="debugfs.ldiskfs"
 752         TUNE2FS="tunefs.ldiskfs"
 753         E2LABEL="label.ldiskfs"
 754         DUMPE2FS="dumpfs.ldiskfs"
 755         E2FSCK="fsck.ldiskfs"
 756         PFSCK="pfsck.ldiskfs"
 757 ], [
 758         AC_MSG_RESULT([disabled])
 759         E2FSPROGS="e2fsprogs"
 760         MKE2FS="mke2fs"
 761         DEBUGFS="debugfs"
 762         TUNE2FS="tune2fs"
 763         E2LABEL="e2label"
 764         DUMPE2FS="dumpe2fs"
 765         E2FSCK="e2fsck"
 766         PFSCK="fsck"
 767 ])
 768
 769 AC_DEFINE_UNQUOTED(E2FSPROGS, "$E2FSPROGS", [name of ldiskfs e2fsprogs package])
 770 AC_DEFINE_UNQUOTED(MKE2FS, "$MKE2FS", [name of ldiskfs mkfs program])
 771 AC_DEFINE_UNQUOTED(DEBUGFS, "$DEBUGFS", [name of ldiskfs debug program])
 772 AC_DEFINE_UNQUOTED(TUNE2FS, "$TUNE2FS", [name of ldiskfs tune program])
 773 AC_DEFINE_UNQUOTED(E2LABEL, "$E2LABEL", [name of ldiskfs label program])
 774 AC_DEFINE_UNQUOTED(DUMPE2FS,"$DUMPE2FS", [name of ldiskfs dump program])
 775 AC_DEFINE_UNQUOTED(E2FSCK, "$E2FSCK", [name of ldiskfs fsck program])
 776 AC_DEFINE_UNQUOTED(PFSCK, "$PFSCK", [name of parallel fsck program])
 777
 778 AC_SUBST([E2FSPROGS], [$E2FSPROGS])
 779 AC_SUBST([MKE2FS], [$MKE2FS])
 780 AC_SUBST([DEBUGFS], [$DEBUGFS])
 781 AC_SUBST([TUNE2FS], [$TUNE2FS])
 782 AC_SUBST([E2LABEL], [$E2LABEL])
 783 AC_SUBST([DUMPE2FS], [$DUMPE2FS])
 784 AC_SUBST([E2FSCK], [$E2FSCK])
 785 AC_SUBST([PFSCK], [$PFSCK])
 786 ]) # LB_DEFINE_E2FSPROGS_NAMES