lustre/autoconf/lustre-core.m4

   1 #* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2 #
   3 # LC_CONFIG_SRCDIR
   4 #
   5 # Wrapper for AC_CONFIG_SUBDIR
   6 #
   7 AC_DEFUN([LC_CONFIG_SRCDIR],
   8 [AC_CONFIG_SRCDIR([lustre/obdclass/obdo.c])
   9 ])
  10
  11 #
  12 # LC_PATH_DEFAULTS
  13 #
  14 # lustre specific paths
  15 #
  16 AC_DEFUN([LC_PATH_DEFAULTS],
  17 [# ptlrpc kernel build requires this
  18 LUSTRE="$PWD/lustre"
  19 AC_SUBST(LUSTRE)
  20
  21 # mount.lustre
  22 rootsbindir='/sbin'
  23 AC_SUBST(rootsbindir)
  24
  25 demodir='$(docdir)/demo'
  26 AC_SUBST(demodir)
  27
  28 pkgexampledir='${pkgdatadir}/examples'
  29 AC_SUBST(pkgexampledir)
  30 ])
  31
  32 #
  33 # LC_TARGET_SUPPORTED
  34 #
  35 # is the target os supported?
  36 #
  37 AC_DEFUN([LC_TARGET_SUPPORTED],
  38 [case $target_os in
  39         linux* | darwin*)
  40 $1
  41                 ;;
  42         *)
  43 $2
  44                 ;;
  45 esac
  46 ])
  47
  48 #
  49 # LC_CONFIG_EXT3
  50 #
  51 # that ext3 is enabled in the kernel
  52 #
  53 AC_DEFUN([LC_CONFIG_EXT3],
  54 [LB_LINUX_CONFIG([EXT3_FS],[],[
  55         LB_LINUX_CONFIG([EXT3_FS_MODULE],[],[$2])
  56 ])
  57 LB_LINUX_CONFIG([EXT3_FS_XATTR],[$1],[$3])
  58 ])
  59
  60 #
  61 # LC_FSHOOKS
  62 #
  63 # If we have (and can build) fshooks.h
  64 #
  65 AC_DEFUN([LC_FSHOOKS],
  66 [LB_CHECK_FILE([$LINUX/include/linux/fshooks.h],[
  67         AC_MSG_CHECKING([if fshooks.h can be compiled])
  68         LB_LINUX_TRY_COMPILE([
  69                 #include <linux/fshooks.h>
  70         ],[],[
  71                 AC_MSG_RESULT([yes])
  72         ],[
  73                 AC_MSG_RESULT([no])
  74                 AC_MSG_WARN([You might have better luck with gcc 3.3.x.])
  75                 AC_MSG_WARN([You can set CC=gcc33 before running configure.])
  76                 AC_MSG_ERROR([Your compiler cannot build fshooks.h.])
  77         ])
  78 $1
  79 ],[
  80 $2
  81 ])
  82 ])
  83
  84 #
  85 # LC_STRUCT_KIOBUF
  86 #
  87 # rh 2.4.18 has iobuf->dovary, but other kernels do not
  88 #
  89 AC_DEFUN([LC_STRUCT_KIOBUF],
  90 [AC_MSG_CHECKING([if struct kiobuf has a dovary field])
  91 LB_LINUX_TRY_COMPILE([
  92         #include <linux/iobuf.h>
  93 ],[
  94         struct kiobuf iobuf;
  95         iobuf.dovary = 1;
  96 ],[
  97         AC_MSG_RESULT([yes])
  98         AC_DEFINE(HAVE_KIOBUF_DOVARY, 1, [struct kiobuf has a dovary field])
  99 ],[
 100         AC_MSG_RESULT([no])
 101 ])
 102 ])
 103
 104 #
 105 # LC_FUNC_COND_RESCHED
 106 #
 107 # cond_resched() was introduced in 2.4.20
 108 #
 109 AC_DEFUN([LC_FUNC_COND_RESCHED],
 110 [AC_MSG_CHECKING([if kernel offers cond_resched])
 111 LB_LINUX_TRY_COMPILE([
 112         #include <linux/sched.h>
 113 ],[
 114         cond_resched();
 115 ],[
 116         AC_MSG_RESULT([yes])
 117         AC_DEFINE(HAVE_COND_RESCHED, 1, [cond_resched found])
 118 ],[
 119         AC_MSG_RESULT([no])
 120 ])
 121 ])
 122
 123 #
 124 # LC_FUNC_ZAP_PAGE_RANGE
 125 #
 126 # if zap_page_range() takes a vma arg
 127 #
 128 AC_DEFUN([LC_FUNC_ZAP_PAGE_RANGE],
 129 [AC_MSG_CHECKING([if zap_page_range with vma parameter])
 130 ZAP_PAGE_RANGE_VMA="`grep -c 'zap_page_range.*struct vm_area_struct' $LINUX/include/linux/mm.h`"
 131 if test "$ZAP_PAGE_RANGE_VMA" != 0 ; then
 132         AC_DEFINE(ZAP_PAGE_RANGE_VMA, 1, [zap_page_range with vma parameter])
 133         AC_MSG_RESULT([yes])
 134 else
 135         AC_MSG_RESULT([no])
 136 fi
 137 ])
 138
 139 #
 140 # LC_FUNC_PDE
 141 #
 142 # if proc_fs.h defines PDE()
 143 #
 144 AC_DEFUN([LC_FUNC_PDE],
 145 [AC_MSG_CHECKING([if kernel defines PDE])
 146 HAVE_PDE="`grep -c 'proc_dir_entry..PDE' $LINUX/include/linux/proc_fs.h`"
 147 if test "$HAVE_PDE" != 0 ; then
 148         AC_DEFINE(HAVE_PDE, 1, [the kernel defines PDE])
 149         AC_MSG_RESULT([yes])
 150 else
 151         AC_MSG_RESULT([no])
 152 fi
 153 ])
 154
 155 #
 156 # LC_FUNC_FILEMAP_FDATASYNC
 157 #
 158 # if filemap_fdatasync() exists
 159 #
 160 AC_DEFUN([LC_FUNC_FILEMAP_FDATAWRITE],
 161 [AC_MSG_CHECKING([whether filemap_fdatawrite() is defined])
 162 LB_LINUX_TRY_COMPILE([
 163         #include <linux/fs.h>
 164 ],[
 165         int (*foo)(struct address_space *)= filemap_fdatawrite;
 166 ],[
 167         AC_MSG_RESULT([yes])
 168         AC_DEFINE(HAVE_FILEMAP_FDATAWRITE, 1, [filemap_fdatawrite() found])
 169 ],[
 170         AC_MSG_RESULT([no])
 171 ])
 172 ])
 173
 174 #
 175 # LC_FUNC_DIRECT_IO
 176 #
 177 # if direct_IO takes a struct file argument
 178 #
 179 AC_DEFUN([LC_FUNC_DIRECT_IO],
 180 [AC_MSG_CHECKING([if kernel passes struct file to direct_IO])
 181 HAVE_DIO_FILE="`grep -c 'direct_IO.*struct file' $LINUX/include/linux/fs.h`"
 182 if test "$HAVE_DIO_FILE" != 0 ; then
 183         AC_DEFINE(HAVE_DIO_FILE, 1, [the kernel passes struct file to direct_IO])
 184         AC_MSG_RESULT(yes)
 185 else
 186         AC_MSG_RESULT(no)
 187 fi
 188 ])
 189
 190 #
 191 # LC_HEADER_MM_INLINE
 192 #
 193 # RHEL kernels define page_count in mm_inline.h
 194 #
 195 AC_DEFUN([LC_HEADER_MM_INLINE],
 196 [AC_MSG_CHECKING([if kernel has mm_inline.h header])
 197 LB_LINUX_TRY_COMPILE([
 198         #include <linux/mm_inline.h>
 199 ],[
 200         #ifndef page_count
 201         #error mm_inline.h does not define page_count
 202         #endif
 203 ],[
 204         AC_MSG_RESULT([yes])
 205         AC_DEFINE(HAVE_MM_INLINE, 1, [mm_inline found])
 206 ],[
 207         AC_MSG_RESULT([no])
 208 ])
 209 ])
 210
 211 #
 212 # LC_STRUCT_INODE
 213 #
 214 # if inode->i_alloc_sem exists
 215 #
 216 AC_DEFUN([LC_STRUCT_INODE],
 217 [AC_MSG_CHECKING([if struct inode has i_alloc_sem])
 218 LB_LINUX_TRY_COMPILE([
 219         #include <linux/fs.h>
 220         #include <linux/version.h>
 221 ],[
 222         #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,24))
 223         #error "down_read_trylock broken before 2.4.24"
 224         #endif
 225         struct inode i;
 226         return (char *)&i.i_alloc_sem - (char *)&i;
 227 ],[
 228         AC_MSG_RESULT([yes])
 229         AC_DEFINE(HAVE_I_ALLOC_SEM, 1, [struct inode has i_alloc_sem])
 230 ],[
 231         AC_MSG_RESULT([no])
 232 ])
 233 ])
 234
 235 #
 236 # LC_FUNC_REGISTER_CACHE
 237 #
 238 # if register_cache() is defined by kernel
 239 #
 240 AC_DEFUN([LC_FUNC_REGISTER_CACHE],
 241 [AC_MSG_CHECKING([if kernel defines register_cache()])
 242 LB_LINUX_TRY_COMPILE([
 243         #include <linux/list.h>
 244         #include <linux/cache_def.h>
 245 ],[
 246         struct cache_definition cache;
 247 ],[
 248         AC_MSG_RESULT([yes])
 249         AC_DEFINE(HAVE_REGISTER_CACHE, 1, [register_cache found])
 250         AC_MSG_CHECKING([if kernel expects return from cache shrink function])
 251         HAVE_CACHE_RETURN_INT="`grep -c 'int.*shrink' $LINUX/include/linux/cache_def.h`"
 252         if test "$HAVE_CACHE_RETURN_INT" != 0 ; then
 253                 AC_DEFINE(HAVE_CACHE_RETURN_INT, 1, [kernel expects return from shrink_cache])
 254                 AC_MSG_RESULT(yes)
 255         else
 256                 AC_MSG_RESULT(no)
 257         fi
 258 ],[
 259         AC_MSG_RESULT([no])
 260 ])
 261 ])
 262
 263 #
 264 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
 265 #
 266 # check for our patched grab_cache_page_nowait_gfp() function
 267 #
 268 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
 269 [AC_MSG_CHECKING([if kernel defines grab_cache_page_nowait_gfp()])
 270 HAVE_GCPN_GFP="`grep -c 'grab_cache_page_nowait_gfp' $LINUX/include/linux/pagemap.h`"
 271 if test "$HAVE_GCPN_GFP" != 0 ; then
 272         AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
 273                 [kernel has grab_cache_page_nowait_gfp()])
 274         AC_MSG_RESULT(yes)
 275 else
 276         AC_MSG_RESULT(no)
 277 fi
 278 ])
 279
 280 #
 281 # LC_FUNC_DEV_SET_RDONLY
 282 #
 283 # check for the old-style dev_set_rdonly which took an extra "devno" param
 284 # and can only set a single device to discard writes at one time
 285 #
 286 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
 287 [AC_MSG_CHECKING([if kernel has new dev_set_rdonly])
 288 LB_LINUX_TRY_COMPILE([
 289         #include <linux/fs.h>
 290 ],[
 291         #ifndef HAVE_CLEAR_RDONLY_ON_PUT
 292         #error needs to be patched by lustre kernel patches from Lustre version 1.4.3 or above.
 293         #endif
 294 ],[
 295         AC_MSG_RESULT([yes])
 296         AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly])
 297 ],[
 298         AC_MSG_RESULT([no, Linux kernel source needs to be patches by lustre
 299 kernel patches from Lustre version 1.4.3 or above.])
 300 ])
 301 ])
 302
 303 #
 304 # LC_CONFIG_BACKINGFS
 305 #
 306 # whether to use ldiskfs instead of ext3
 307 #
 308 AC_DEFUN([LC_CONFIG_BACKINGFS],
 309 [
 310 BACKINGFS='ext3'
 311
 312 # 2.6 gets ldiskfs
 313 AC_MSG_CHECKING([whether to enable ldiskfs])
 314 AC_ARG_ENABLE([ldiskfs],
 315         AC_HELP_STRING([--enable-ldiskfs],
 316                         [use ldiskfs for the Lustre backing FS]),
 317         [],[enable_ldiskfs="$linux25"])
 318 AC_MSG_RESULT([$enable_ldiskfs])
 319
 320 if test x$enable_ldiskfs = xyes ; then
 321         BACKINGFS="ldiskfs"
 322
 323         AC_MSG_CHECKING([whether to enable quilt for making ldiskfs])
 324         AC_ARG_ENABLE([quilt],
 325                         AC_HELP_STRING([--disable-quilt],[disable use of quilt for ldiskfs]),
 326                         [],[enable_quilt='yes'])
 327         AC_MSG_RESULT([$enable_quilt])
 328
 329         AC_PATH_PROG(PATCH, patch, [no])
 330
 331         if test x$enable_quilt = xno ; then
 332             QUILT="no"
 333         else
 334             AC_PATH_PROG(QUILT, quilt, [no])
 335         fi
 336
 337         if test x$enable_ldiskfs$PATCH$QUILT = xyesnono ; then
 338                 AC_MSG_ERROR([Quilt or patch are needed to build the ldiskfs module (for Linux 2.6)])
 339         fi
 340
 341         AC_DEFINE(CONFIG_LDISKFS_FS_MODULE, 1, [build ldiskfs as a module])
 342         AC_DEFINE(CONFIG_LDISKFS_FS_XATTR, 1, [enable extended attributes for ldiskfs])
 343         AC_DEFINE(CONFIG_LDISKFS_FS_POSIX_ACL, 1, [enable posix acls for ldiskfs])
 344         AC_DEFINE(CONFIG_LDISKFS_FS_SECURITY, 1, [enable fs security for ldiskfs])
 345
 346         AC_DEFINE(CONFIG_LDISKFS2_FS_XATTR, 1, [enable extended attributes for ldiskfs2])
 347         AC_DEFINE(CONFIG_LDISKFS2_FS_POSIX_ACL, 1, [enable posix acls for ldiskfs2])
 348         AC_DEFINE(CONFIG_LDISKFS2_FS_SECURITY, 1, [enable fs security for ldiskfs2])
 349 fi
 350
 351 AC_MSG_CHECKING([which backing filesystem to use])
 352 AC_MSG_RESULT([$BACKINGFS])
 353 AC_SUBST(BACKINGFS)
 354
 355 case $BACKINGFS in
 356         ext3)
 357                 # --- Check that ext3 and ext3 xattr are enabled in the kernel
 358                 LC_CONFIG_EXT3([],[
 359                         AC_MSG_ERROR([Lustre requires that ext3 is enabled in the kernel])
 360                 ],[
 361                         AC_MSG_WARN([Lustre requires that extended attributes for ext3 are enabled in the kernel])
 362                         AC_MSG_WARN([This build may fail.])
 363                 ])
 364                 ;;
 365         ldiskfs)
 366                 AC_MSG_CHECKING([which ldiskfs series to use])
 367                 case $LINUXRELEASE in
 368                 2.6.5*) LDISKFS_SERIES="2.6-suse.series" ;;
 369                 2.6.9*) LDISKFS_SERIES="2.6-rhel4.series" ;;
 370                 2.6.10-ac*) LDISKFS_SERIES="2.6-fc3.series" ;;
 371                 2.6.10*) LDISKFS_SERIES="2.6-rhel4.series" ;;
 372                 2.6.12*) LDISKFS_SERIES="2.6.12-vanilla.series" ;;
 373                 2.6.15*) LDISKFS_SERIES="2.6-fc5.series";;
 374                 2.6.16*) LDISKFS_SERIES="2.6-sles10.series";;
 375                 2.6.18*) LDISKFS_SERIES="2.6.18-vanilla.series";;
 376                 *) AC_MSG_WARN([Unknown kernel version $LINUXRELEASE, fix lustre/autoconf/lustre-core.m4])
 377                 esac
 378                 AC_MSG_RESULT([$LDISKFS_SERIES])
 379                 AC_SUBST(LDISKFS_SERIES)
 380                 ;;
 381 esac # $BACKINGFS
 382 ])
 383
 384 #
 385 # LC_CONFIG_PINGER
 386 #
 387 # the pinger is temporary, until we have the recovery node in place
 388 #
 389 AC_DEFUN([LC_CONFIG_PINGER],
 390 [AC_MSG_CHECKING([whether to enable pinger support])
 391 AC_ARG_ENABLE([pinger],
 392         AC_HELP_STRING([--disable-pinger],
 393                         [disable recovery pinger support]),
 394         [],[enable_pinger='yes'])
 395 AC_MSG_RESULT([$enable_pinger])
 396 if test x$enable_pinger != xno ; then
 397   AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
 398 fi
 399 ])
 400
 401 #
 402 # LC_CONFIG_HEALTH_CHECK_WRITE
 403 #
 404 # Turn off the actual write to the disk
 405 #
 406 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
 407 [AC_MSG_CHECKING([whether to enable a write with the health check])
 408 AC_ARG_ENABLE([health_write],
 409         AC_HELP_STRING([--disable-health_write],
 410                         [disable disk writes when doing health check]),
 411         [],[enable_health_write='yes'])
 412 AC_MSG_RESULT([$enable_health_write])
 413 if test x$enable_health_write != xno ; then
 414   AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
 415 fi
 416 ])
 417
 418 #
 419 # LC_CONFIG_LIBLUSTRE_RECOVERY
 420 #
 421 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
 422 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
 423 AC_ARG_ENABLE([liblustre-recovery],
 424         AC_HELP_STRING([--disable-liblustre-recovery],
 425                         [disable liblustre recovery support]),
 426         [],[enable_liblustre_recovery='yes'])
 427 AC_MSG_RESULT([$enable_liblustre_recovery])
 428 if test x$enable_liblustre_recovery != xno ; then
 429   AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
 430 fi
 431 ])
 432
 433 #
 434 # LC_CONFIG_OBD_BUFFER_SIZE
 435 #
 436 # the maximum buffer size of lctl ioctls
 437 #
 438 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
 439 [AC_MSG_CHECKING([maximum OBD ioctl size])
 440 AC_ARG_WITH([obd-buffer-size],
 441         AC_HELP_STRING([--with-obd-buffer-size=[size]],
 442                         [set lctl ioctl maximum bytes (default=8192)]),
 443         [
 444                 OBD_BUFFER_SIZE=$with_obd_buffer_size
 445         ],[
 446                 OBD_BUFFER_SIZE=8192
 447         ])
 448 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
 449 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
 450 ])
 451
 452 #
 453 # LC_STRUCT_STATFS
 454 #
 455 # AIX does not have statfs.f_namelen
 456 #
 457 AC_DEFUN([LC_STRUCT_STATFS],
 458 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
 459 LB_LINUX_TRY_COMPILE([
 460         #include <linux/vfs.h>
 461 ],[
 462         struct statfs sfs;
 463         sfs.f_namelen = 1;
 464 ],[
 465         AC_MSG_RESULT([yes])
 466         AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
 467 ],[
 468         AC_MSG_RESULT([no])
 469 ])
 470 ])
 471
 472 #
 473 # LC_READLINK_SSIZE_T
 474 #
 475 AC_DEFUN([LC_READLINK_SSIZE_T],
 476 [AC_MSG_CHECKING([if readlink returns ssize_t])
 477 AC_TRY_COMPILE([
 478         #include <unistd.h>
 479 ],[
 480         ssize_t readlink(const char *, char *, size_t);
 481 ],[
 482         AC_MSG_RESULT([yes])
 483         AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
 484 ],[
 485         AC_MSG_RESULT([no])
 486 ])
 487 ])
 488
 489 AC_DEFUN([LC_FUNC_PAGE_MAPPED],
 490 [AC_MSG_CHECKING([if kernel offers page_mapped])
 491 LB_LINUX_TRY_COMPILE([
 492         #include <linux/mm.h>
 493 ],[
 494         page_mapped(NULL);
 495 ],[
 496         AC_MSG_RESULT([yes])
 497         AC_DEFINE(HAVE_PAGE_MAPPED, 1, [page_mapped found])
 498 ],[
 499         AC_MSG_RESULT([no])
 500 ])
 501 ])
 502
 503 AC_DEFUN([LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL],
 504 [AC_MSG_CHECKING([if struct file_operations has an unlocked_ioctl field])
 505 LB_LINUX_TRY_COMPILE([
 506         #include <linux/fs.h>
 507 ],[
 508         struct file_operations fops;
 509         &fops.unlocked_ioctl;
 510 ],[
 511         AC_MSG_RESULT([yes])
 512         AC_DEFINE(HAVE_UNLOCKED_IOCTL, 1, [struct file_operations has an unlock ed_ioctl field])
 513 ],[
 514         AC_MSG_RESULT([no])
 515 ])
 516 ])
 517
 518 AC_DEFUN([LC_FILEMAP_POPULATE],
 519 [AC_MSG_CHECKING([for exported filemap_populate])
 520 LB_LINUX_TRY_COMPILE([
 521         #include <asm/page.h>
 522         #include <linux/mm.h>
 523 ],[
 524        filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
 525 ],[
 526         AC_MSG_RESULT([yes])
 527         AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
 528 ],[
 529         AC_MSG_RESULT([no])
 530 ])
 531 ])
 532
 533 AC_DEFUN([LC_D_ADD_UNIQUE],
 534 [AC_MSG_CHECKING([for d_add_unique])
 535 LB_LINUX_TRY_COMPILE([
 536         #include <linux/dcache.h>
 537 ],[
 538        d_add_unique(NULL, NULL);
 539 ],[
 540         AC_MSG_RESULT([yes])
 541         AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
 542 ],[
 543         AC_MSG_RESULT([no])
 544 ])
 545 ])
 546
 547 AC_DEFUN([LC_BIT_SPINLOCK_H],
 548 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
 549         AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
 550         LB_LINUX_TRY_COMPILE([
 551                 #include <asm/processor.h>
 552                 #include <linux/spinlock.h>
 553                 #include <linux/bit_spinlock.h>
 554         ],[],[
 555                 AC_MSG_RESULT([yes])
 556                 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
 557         ],[
 558                 AC_MSG_RESULT([no])
 559         ])
 560 ],
 561 [])
 562 ])
 563
 564 #
 565 # LC_POSIX_ACL_XATTR
 566 #
 567 # If we have xattr_acl.h
 568 #
 569 AC_DEFUN([LC_XATTR_ACL],
 570 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
 571         AC_MSG_CHECKING([if xattr_acl.h can be compiled])
 572         LB_LINUX_TRY_COMPILE([
 573                 #include <linux/xattr_acl.h>
 574         ],[],[
 575                 AC_MSG_RESULT([yes])
 576                 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
 577         ],[
 578                 AC_MSG_RESULT([no])
 579         ])
 580 ],
 581 [])
 582 ])
 583
 584 AC_DEFUN([LC_STRUCT_INTENT_FILE],
 585 [AC_MSG_CHECKING([if struct open_intent has a file field])
 586 LB_LINUX_TRY_COMPILE([
 587         #include <linux/fs.h>
 588         #include <linux/namei.h>
 589 ],[
 590         struct open_intent intent;
 591         &intent.file;
 592 ],[
 593         AC_MSG_RESULT([yes])
 594         AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
 595 ],[
 596         AC_MSG_RESULT([no])
 597 ])
 598 ])
 599
 600
 601 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
 602 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
 603         AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
 604         LB_LINUX_TRY_COMPILE([
 605                 #include <linux/posix_acl_xattr.h>
 606         ],[],[
 607                 AC_MSG_RESULT([yes])
 608                 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
 609
 610         ],[
 611                 AC_MSG_RESULT([no])
 612         ])
 613 $1
 614 ],[
 615 AC_MSG_RESULT([no])
 616 ])
 617 ])
 618
 619 AC_DEFUN([LC_LUSTRE_VERSION_H],
 620 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 621         rm -f "$LUSTRE/include/linux/lustre_version.h"
 622 ],[
 623         touch "$LUSTRE/include/linux/lustre_version.h"
 624         if test x$enable_server = xyes ; then
 625                 AC_MSG_WARN([Unpatched kernel detected.])
 626                 AC_MSG_WARN([Lustre servers cannot be built with an unpatched kernel;])
 627                 AC_MSG_WARN([disabling server build])
 628                 enable_server='no'
 629         fi
 630 ])
 631 ])
 632
 633 AC_DEFUN([LC_FUNC_SET_FS_PWD],
 634 [AC_MSG_CHECKING([if kernel exports show_task])
 635 have_show_task=0
 636         if grep -q "EXPORT_SYMBOL(show_task)" \
 637                  "$LINUX/fs/namespace.c" 2>/dev/null ; then
 638                 AC_DEFINE(HAVE_SET_FS_PWD, 1, [set_fs_pwd is exported])
 639                 AC_MSG_RESULT([yes])
 640         else
 641                 AC_MSG_RESULT([no])
 642         fi
 643 ])
 644
 645
 646 #
 647 # LC_FUNC_MS_FLOCK_LOCK
 648 #
 649 # SLES9 kernel has MS_FLOCK_LOCK sb flag
 650 #
 651 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
 652 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
 653 LB_LINUX_TRY_COMPILE([
 654         #include <linux/fs.h>
 655 ],[
 656         int flags = MS_FLOCK_LOCK;
 657 ],[
 658         AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
 659                 [kernel has MS_FLOCK_LOCK flag])
 660         AC_MSG_RESULT([yes])
 661 ],[
 662         AC_MSG_RESULT([no])
 663 ])
 664 ])
 665
 666 #
 667 # LC_FUNC_HAVE_CAN_SLEEP_ARG
 668 #
 669 # SLES9 kernel has third arg can_sleep
 670 # in fs/locks.c: flock_lock_file_wait()
 671 #
 672 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
 673 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 674 LB_LINUX_TRY_COMPILE([
 675         #include <linux/fs.h>
 676 ],[
 677         int cansleep;
 678         struct file *file;
 679         struct file_lock *file_lock;
 680         flock_lock_file_wait(file, file_lock, cansleep);
 681 ],[
 682         AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
 683                 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 684         AC_MSG_RESULT([yes])
 685 ],[
 686         AC_MSG_RESULT([no])
 687 ])
 688 ])
 689
 690 #
 691 # LC_FUNC_F_OP_FLOCK
 692 #
 693 # rhel4.2 kernel has f_op->flock field
 694 #
 695 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 696 [AC_MSG_CHECKING([if struct file_operations has flock field])
 697 LB_LINUX_TRY_COMPILE([
 698         #include <linux/fs.h>
 699 ],[
 700         struct file_operations ll_file_operations_flock;
 701         ll_file_operations_flock.flock = NULL;
 702 ],[
 703         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 704                 [struct file_operations has flock field])
 705         AC_MSG_RESULT([yes])
 706 ],[
 707         AC_MSG_RESULT([no])
 708 ])
 709 ])
 710
 711 #
 712 # LC_FUNC_MS_FLOCK_LOCK
 713 #
 714 # SLES9 kernel has MS_FLOCK_LOCK sb flag
 715 #
 716 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
 717 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
 718 LB_LINUX_TRY_COMPILE([
 719         #include <linux/fs.h>
 720 ],[
 721         int flags = MS_FLOCK_LOCK;
 722 ],[
 723         AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
 724                 [kernel has MS_FLOCK_LOCK flag])
 725         AC_MSG_RESULT([yes])
 726 ],[
 727         AC_MSG_RESULT([no])
 728 ])
 729 ])
 730
 731 #
 732 # LC_FUNC_HAVE_CAN_SLEEP_ARG
 733 #
 734 # SLES9 kernel has third arg can_sleep
 735 # in fs/locks.c: flock_lock_file_wait()
 736 #
 737 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
 738 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 739 LB_LINUX_TRY_COMPILE([
 740         #include <linux/fs.h>
 741 ],[
 742         int cansleep;
 743         struct file *file;
 744         struct file_lock *file_lock;
 745         flock_lock_file_wait(file, file_lock, cansleep);
 746 ],[
 747         AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
 748                 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 749         AC_MSG_RESULT([yes])
 750 ],[
 751         AC_MSG_RESULT([no])
 752 ])
 753 ])
 754
 755 #
 756 # LC_TASK_PPTR
 757 #
 758 # task struct has p_pptr instead of parent
 759 #
 760 AC_DEFUN([LC_TASK_PPTR],
 761 [AC_MSG_CHECKING([task p_pptr found])
 762 LB_LINUX_TRY_COMPILE([
 763         #include <linux/sched.h>
 764 ],[
 765         struct task_struct *p;
 766
 767         p = p->p_pptr;
 768 ],[
 769         AC_MSG_RESULT([yes])
 770         AC_DEFINE(HAVE_TASK_PPTR, 1, [task p_pptr found])
 771 ],[
 772         AC_MSG_RESULT([no])
 773 ])
 774 ])
 775
 776 #
 777 # LC_FUNC_F_OP_FLOCK
 778 #
 779 # rhel4.2 kernel has f_op->flock field
 780 #
 781 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 782 [AC_MSG_CHECKING([if struct file_operations has flock field])
 783 LB_LINUX_TRY_COMPILE([
 784         #include <linux/fs.h>
 785 ],[
 786         struct file_operations ll_file_operations_flock;
 787         ll_file_operations_flock.flock = NULL;
 788 ],[
 789         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 790                 [struct file_operations has flock field])
 791         AC_MSG_RESULT([yes])
 792 ],[
 793         AC_MSG_RESULT([no])
 794 ])
 795 ])
 796
 797 # LC_INODE_I_MUTEX
 798 # after 2.6.15 inode have i_mutex intead of i_sem
 799 AC_DEFUN([LC_INODE_I_MUTEX],
 800 [AC_MSG_CHECKING([use inode have i_mutex ])
 801 LB_LINUX_TRY_COMPILE([
 802         #include <linux/mutex.h>
 803         #include <linux/fs.h>
 804 ],[
 805         struct inode i;
 806
 807         mutex_unlock(&i.i_mutex);
 808 ],[
 809         AC_MSG_RESULT(yes)
 810         AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
 811                 [after 2.6.15 inode have i_mutex intead of i_sem])
 812 ],[
 813         AC_MSG_RESULT(NO)
 814 ])
 815 ])
 816
 817
 818 # LC_DQUOTOFF_MUTEX
 819 # after 2.6.17 dquote use mutex instead if semaphore
 820 AC_DEFUN([LC_DQUOTOFF_MUTEX],
 821 [AC_MSG_CHECKING([use dqonoff_mutex])
 822 LB_LINUX_TRY_COMPILE([
 823         #include <linux/mutex.h>
 824         #include <linux/fs.h>
 825         #include <linux/quota.h>
 826 ],[
 827         struct quota_info dq;
 828
 829         mutex_unlock(&dq.dqonoff_mutex);
 830 ],[
 831         AC_MSG_RESULT(yes)
 832         AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
 833                 [after 2.6.17 dquote use mutex instead if semaphore])
 834 ],[
 835         AC_MSG_RESULT(NO)
 836 ])
 837 ])
 838
 839 #
 840 # LC_STATFS_DENTRY_PARAM
 841 # starting from 2.6.18 linux kernel uses dentry instead of
 842 # super_block for first vfs_statfs argument
 843 #
 844 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
 845 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
 846 LB_LINUX_TRY_COMPILE([
 847         #include <linux/fs.h>
 848 ],[
 849         int vfs_statfs(struct dentry *, struct kstatfs *);
 850 ],[
 851         AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
 852                 [first parameter of vfs_statfs is dentry])
 853         AC_MSG_RESULT([yes])
 854 ],[
 855         AC_MSG_RESULT([no])
 856 ])
 857 ])
 858
 859 #
 860 # LC_VFS_KERN_MOUNT
 861 # starting from 2.6.18 kernel don`t export do_kern_mount
 862 # and want to use vfs_kern_mount instead.
 863 #
 864 AC_DEFUN([LC_VFS_KERN_MOUNT],
 865 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
 866 LB_LINUX_TRY_COMPILE([
 867         #include <linux/mount.h>
 868 ],[
 869         vfs_kern_mount(NULL, 0, NULL, NULL);
 870 ],[
 871         AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
 872                 [vfs_kern_mount exist in kernel])
 873         AC_MSG_RESULT([yes])
 874 ],[
 875         AC_MSG_RESULT([no])
 876 ])
 877 ])
 878
 879 #
 880 # LC_INVALIDATEPAGE_RETURN_INT
 881 # more 2.6 api changes.  return type for the invalidatepage
 882 # address_space_operation is 'void' in new kernels but 'int' in old
 883 #
 884 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
 885 [AC_MSG_CHECKING([invalidatepage has return int])
 886 LB_LINUX_TRY_COMPILE([
 887         #include <linux/buffer_head.h>
 888 ],[
 889         int rc = block_invalidatepage(NULL, 0);
 890 ],[
 891         AC_MSG_RESULT(yes)
 892         AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
 893                 [Define if return type of invalidatepage should be int])
 894 ],[
 895         AC_MSG_RESULT(NO)
 896 ])
 897 ])
 898
 899 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
 900 # more 2.6 API changes. 2.6.18 umount_begin has different parameters
 901 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
 902 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
 903 tmp_flags="$EXTRA_KCFLAGS"
 904 EXTRA_KCFLAGS="-Werror"
 905 LB_LINUX_TRY_COMPILE([
 906         #include <linux/fs.h>
 907
 908         struct vfsmount;
 909         static void cfg_umount_begin (struct vfsmount *v, int flags)
 910         {
 911                 ;
 912         }
 913
 914         static struct super_operations cfg_super_operations = {
 915                 .umount_begin   = cfg_umount_begin,
 916         };
 917 ],[
 918         cfg_super_operations.umount_begin(NULL,0);
 919 ],[
 920         AC_MSG_RESULT(yes)
 921         AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
 922                 [Define umount_begin need second argument])
 923 ],[
 924         AC_MSG_RESULT(NO)
 925 ])
 926 EXTRA_KCFLAGS="$tmp_flags"
 927 ])
 928
 929 # 2.6.19 API changes
 930 # inode don`t have i_blksize field
 931 AC_DEFUN([LC_INODE_BLKSIZE],
 932 [AC_MSG_CHECKING([inode has i_blksize field])
 933 LB_LINUX_TRY_COMPILE([
 934 #include <linux/fs.h>
 935 ],[
 936         struct inode i;
 937         i.i_blksize = 0;
 938 ],[
 939         AC_MSG_RESULT(yes)
 940         AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
 941                 [struct inode has i_blksize field])
 942 ],[
 943         AC_MSG_RESULT(NO)
 944 ])
 945 ])
 946
 947 # LC_VFS_READDIR_U64_INO
 948 # 2.6.19 use u64 for inode number instead of inode_t
 949 AC_DEFUN([LC_VFS_READDIR_U64_INO],
 950 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
 951 tmp_flags="$EXTRA_KCFLAGS"
 952 EXTRA_KCFLAGS="-Werror"
 953 LB_LINUX_TRY_COMPILE([
 954 #include <linux/fs.h>
 955         int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
 956                       u64 ino, unsigned int d_type)
 957         {
 958                 return 0;
 959         }
 960 ],[
 961         filldir_t filter;
 962
 963         filter = fillonedir;
 964         return 1;
 965 ],[
 966         AC_MSG_RESULT(yes)
 967         AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
 968                 [if vfs_readdir need 64bit inode number])
 969 ],[
 970         AC_MSG_RESULT(NO)
 971 ])
 972 EXTRA_KCFLAGS="$tmp_flags"
 973 ])
 974
 975 # LC_GENERIC_FILE_WRITE
 976 # 2.6.19 introduce do_sync_write instead of
 977 # generic_file_write
 978 AC_DEFUN([LC_GENERIC_FILE_WRITE],
 979 [AC_MSG_CHECKING([use generic_file_write])
 980 LB_LINUX_TRY_COMPILE([
 981         #include <linux/fs.h>
 982 ],[
 983         int result = generic_file_read(NULL, NULL, 0, 0);
 984 ],[
 985         AC_MSG_RESULT(yes)
 986         AC_DEFINE(HAVE_GENERIC_FILE_WRITE, 1,
 987                 [use generic_file_write])
 988 ],[
 989         AC_MSG_RESULT(NO)
 990 ])
 991 ])
 992
 993 # LC_GENERIC_FILE_READ
 994 # 2.6.19 need to use do_sync_read instead of
 995 # generic_file_read
 996 AC_DEFUN([LC_GENERIC_FILE_READ],
 997 [AC_MSG_CHECKING([use generic_file_read])
 998 LB_LINUX_TRY_COMPILE([
 999         #include <linux/fs.h>
1000 ],[
1001         int result = generic_file_read(NULL, NULL, 0, 0);
1002 ],[
1003         AC_MSG_RESULT(yes)
1004         AC_DEFINE(HAVE_GENERIC_FILE_READ, 1,
1005                 [use generic_file_read])
1006 ],[
1007         AC_MSG_RESULT(NO)
1008 ])
1009 ])
1010
1011 # LC_NR_PAGECACHE
1012 # 2.6.18 don`t export nr_pagecahe
1013 AC_DEFUN([LC_NR_PAGECACHE],
1014 [AC_MSG_CHECKING([kernel export nr_pagecache])
1015 LB_LINUX_TRY_COMPILE([
1016         #include <linux/pagemap.h>
1017 ],[
1018         return atomic_read(&nr_pagecache);
1019 ],[
1020         AC_MSG_RESULT(yes)
1021         AC_DEFINE(HAVE_NR_PAGECACHE, 1,
1022                 [is kernel export nr_pagecache])
1023 ],[
1024         AC_MSG_RESULT(NO)
1025 ])
1026 ])
1027
1028 # LC_WB_RANGE_START
1029 # 2.6.20 rename struct writeback fields
1030 AC_DEFUN([LC_WB_RANGE_START],
1031 [AC_MSG_CHECKING([kernel has range_start in struct writeback_control])
1032 LB_LINUX_TRY_COMPILE([
1033         #include <linux/fs.h>
1034         #include <linux/sched.h>
1035         #include <linux/writeback.h>
1036 ],[
1037         struct writeback_control wb;
1038
1039         wb.range_start = 0;
1040 ],[
1041         AC_MSG_RESULT(yes)
1042         AC_DEFINE(HAVE_WB_RANGE_START, 1,
1043                   [writeback control has range_start field])
1044 ],[
1045         AC_MSG_RESULT(NO)
1046 ])
1047 ])
1048
1049 #
1050 # LC_PROG_LINUX
1051 #
1052 # Lustre linux kernel checks
1053 #
1054 AC_DEFUN([LC_PROG_LINUX],
1055 [ LC_LUSTRE_VERSION_H
1056 if test x$enable_server = xyes ; then
1057         LC_CONFIG_BACKINGFS
1058 fi
1059 LC_CONFIG_PINGER
1060 LC_CONFIG_LIBLUSTRE_RECOVERY
1061 LC_CONFIG_QUOTA
1062 LC_CONFIG_HEALTH_CHECK_WRITE
1063
1064 LC_TASK_PPTR
1065
1066 LC_STRUCT_KIOBUF
1067 LC_FUNC_COND_RESCHED
1068 LC_FUNC_ZAP_PAGE_RANGE
1069 LC_FUNC_PDE
1070 LC_FUNC_DIRECT_IO
1071 LC_HEADER_MM_INLINE
1072 LC_STRUCT_INODE
1073 LC_FUNC_REGISTER_CACHE
1074 LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1075 LC_FUNC_DEV_SET_RDONLY
1076 LC_FUNC_FILEMAP_FDATAWRITE
1077 LC_STRUCT_STATFS
1078 LC_FUNC_PAGE_MAPPED
1079 LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL
1080 LC_FILEMAP_POPULATE
1081 LC_D_ADD_UNIQUE
1082 LC_BIT_SPINLOCK_H
1083 LC_XATTR_ACL
1084 LC_STRUCT_INTENT_FILE
1085 LC_POSIX_ACL_XATTR_H
1086 LC_FUNC_SET_FS_PWD
1087 LC_FUNC_MS_FLOCK_LOCK
1088 LC_FUNC_HAVE_CAN_SLEEP_ARG
1089 LC_FUNC_F_OP_FLOCK
1090 LC_QUOTA_READ
1091 LC_COOKIE_FOLLOW_LINK
1092
1093 # 2.6.15
1094 LC_INODE_I_MUTEX
1095
1096 # 2.6.17
1097 LC_DQUOTOFF_MUTEX
1098
1099 # 2.6.18
1100 LC_NR_PAGECACHE
1101 LC_STATFS_DENTRY_PARAM
1102 LC_VFS_KERN_MOUNT
1103 LC_INVALIDATEPAGE_RETURN_INT
1104 LC_UMOUNTBEGIN_HAS_VFSMOUNT
1105 LC_WB_RANGE_START
1106
1107 # 2.6.19
1108 LC_INODE_BLKSIZE
1109 LC_VFS_READDIR_U64_INO
1110 LC_GENERIC_FILE_READ
1111 LC_GENERIC_FILE_WRITE
1112 ])
1113
1114 #
1115 # LC_CONFIG_CLIENT_SERVER
1116 #
1117 # Build client/server sides of Lustre
1118 #
1119 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1120 [AC_MSG_CHECKING([whether to build Lustre server support])
1121 AC_ARG_ENABLE([server],
1122         AC_HELP_STRING([--disable-server],
1123                         [disable Lustre server support]),
1124         [],[enable_server='yes'])
1125 AC_MSG_RESULT([$enable_server])
1126
1127 AC_MSG_CHECKING([whether to build Lustre client support])
1128 AC_ARG_ENABLE([client],
1129         AC_HELP_STRING([--disable-client],
1130                         [disable Lustre client support]),
1131         [],[enable_client='yes'])
1132 AC_MSG_RESULT([$enable_client])])
1133
1134 #
1135 # LC_CONFIG_LIBLUSTRE
1136 #
1137 # whether to build liblustre
1138 #
1139 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1140 [AC_MSG_CHECKING([whether to build Lustre library])
1141 AC_ARG_ENABLE([liblustre],
1142         AC_HELP_STRING([--disable-liblustre],
1143                         [disable building of Lustre library]),
1144         [],[enable_liblustre=$with_sysio])
1145 AC_MSG_RESULT([$enable_liblustre])
1146 # only build sysio if liblustre is built
1147 with_sysio="$enable_liblustre"
1148
1149 AC_MSG_CHECKING([whether to build liblustre tests])
1150 AC_ARG_ENABLE([liblustre-tests],
1151         AC_HELP_STRING([--enable-liblustre-tests],
1152                         [enable liblustre tests, if --disable-tests is used]),
1153         [],[enable_liblustre_tests=$enable_tests])
1154 if test x$enable_liblustre != xyes ; then
1155    enable_liblustre_tests='no'
1156 fi
1157 AC_MSG_RESULT([$enable_liblustre_tests])
1158
1159 AC_MSG_CHECKING([whether to build mpitests])
1160 AC_ARG_ENABLE([mpitests],
1161         AC_HELP_STRING([--enable-mpitests],
1162                         [build liblustre mpi tests]),
1163         [],[enable_mpitests=no])
1164 AC_MSG_RESULT([$enable_mpitests])
1165
1166 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1167 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1168
1169 LC_CONFIG_PINGER
1170 LC_CONFIG_LIBLUSTRE_RECOVERY
1171 ])
1172
1173 #
1174 # LC_CONFIG_QUOTA
1175 #
1176 # whether to enable quota support
1177 #
1178 AC_DEFUN([LC_CONFIG_QUOTA],
1179 [AC_MSG_CHECKING([whether to enable quota support])
1180 AC_ARG_ENABLE([quota],
1181         AC_HELP_STRING([--enable-quota],
1182                         [enable quota support]),
1183         [],[enable_quota='yes'])
1184 AC_MSG_RESULT([$enable_quota])
1185 if test x$linux25 != xyes; then
1186    enable_quota='no'
1187 fi
1188 if test x$enable_quota != xno; then
1189    AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
1190 fi
1191 ])
1192
1193 AC_DEFUN([LC_QUOTA_READ],
1194 [AC_MSG_CHECKING([if kernel supports quota_read])
1195 LB_LINUX_TRY_COMPILE([
1196         #include <linux/fs.h>
1197 ],[
1198         struct super_operations sp;
1199         void *i = (void *)sp.quota_read;
1200 ],[
1201         AC_MSG_RESULT([yes])
1202         AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
1203 ],[
1204         AC_MSG_RESULT([no])
1205 ])
1206 ])
1207
1208 #
1209 # LC_COOKIE_FOLLOW_LINK
1210 #
1211 # kernel 2.6.13+ ->follow_link returns a cookie
1212 #
1213
1214 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
1215 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
1216 LB_LINUX_TRY_COMPILE([
1217         #include <linux/fs.h>
1218         #include <linux/namei.h>
1219 ],[
1220         struct dentry dentry;
1221         struct nameidata nd;
1222
1223         dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
1224 ],[
1225         AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
1226         AC_MSG_RESULT([yes])
1227 ],[
1228         AC_MSG_RESULT([no])
1229 ])
1230 ])
1231
1232 #
1233 # LC_CONFIGURE
1234 #
1235 # other configure checks
1236 #
1237 AC_DEFUN([LC_CONFIGURE],
1238 [LC_CONFIG_OBD_BUFFER_SIZE
1239
1240 # include/liblustre.h
1241 AC_CHECK_HEADERS([asm/page.h sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1242
1243 # include/lustre/lustre_user.h
1244 # See note there re: __ASM_X86_64_PROCESSOR_H
1245 AC_CHECK_HEADERS([linux/quota.h])
1246
1247 # liblustre/llite_lib.h
1248 AC_CHECK_HEADERS([xtio.h file.h])
1249
1250 # liblustre/dir.c
1251 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1252
1253 # liblustre/lutil.c
1254 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1255 AC_CHECK_FUNCS([inet_ntoa])
1256
1257 # libsysio/src/readlink.c
1258 LC_READLINK_SSIZE_T
1259
1260 # utils/llverfs.c
1261 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1262
1263 # Super safe df
1264 AC_ARG_ENABLE([mindf],
1265       AC_HELP_STRING([--enable-mindf],
1266                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1267       [],[])
1268 if test "$enable_mindf" = "yes" ;  then
1269       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1270 fi
1271
1272 ])
1273
1274 #
1275 # LC_CONDITIONALS
1276 #
1277 # AM_CONDITIONALS for lustre
1278 #
1279 AC_DEFUN([LC_CONDITIONALS],
1280 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1281 AM_CONDITIONAL(LDISKFS, test x$enable_ldiskfs = xyes)
1282 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
1283 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1284 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1285 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1286 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1287 AM_CONDITIONAL(QUOTA, test x$enable_quota = xyes)
1288 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1289 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1290 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1291 ])
1292
1293 #
1294 # LC_CONFIG_FILES
1295 #
1296 # files that should be generated with AC_OUTPUT
1297 #
1298 AC_DEFUN([LC_CONFIG_FILES],
1299 [AC_CONFIG_FILES([
1300 lustre/Makefile
1301 lustre/autoMakefile
1302 lustre/autoconf/Makefile
1303 lustre/contrib/Makefile
1304 lustre/doc/Makefile
1305 lustre/include/Makefile
1306 lustre/include/lustre_ver.h
1307 lustre/include/linux/Makefile
1308 lustre/include/lustre/Makefile
1309 lustre/kernel_patches/targets/2.6-suse.target
1310 lustre/kernel_patches/targets/2.6-vanilla.target
1311 lustre/kernel_patches/targets/2.6-rhel4.target
1312 lustre/kernel_patches/targets/2.6-fc5.target
1313 lustre/kernel_patches/targets/2.6-patchless.target
1314 lustre/kernel_patches/targets/2.6-sles10.target
1315 lustre/kernel_patches/targets/hp_pnnl-2.4.target
1316 lustre/kernel_patches/targets/rh-2.4.target
1317 lustre/kernel_patches/targets/rhel-2.4.target
1318 lustre/kernel_patches/targets/suse-2.4.21-2.target
1319 lustre/kernel_patches/targets/sles-2.4.target
1320 lustre/ldiskfs/Makefile
1321 lustre/ldiskfs/autoMakefile
1322 lustre/ldiskfs2/Makefile
1323 lustre/ldiskfs2/autoMakefile
1324 lustre/ldlm/Makefile
1325 lustre/liblustre/Makefile
1326 lustre/liblustre/tests/Makefile
1327 lustre/llite/Makefile
1328 lustre/llite/autoMakefile
1329 lustre/lov/Makefile
1330 lustre/lov/autoMakefile
1331 lustre/lvfs/Makefile
1332 lustre/lvfs/autoMakefile
1333 lustre/mdc/Makefile
1334 lustre/mdc/autoMakefile
1335 lustre/mds/Makefile
1336 lustre/mds/autoMakefile
1337 lustre/obdclass/Makefile
1338 lustre/obdclass/autoMakefile
1339 lustre/obdclass/linux/Makefile
1340 lustre/obdecho/Makefile
1341 lustre/obdecho/autoMakefile
1342 lustre/obdfilter/Makefile
1343 lustre/obdfilter/autoMakefile
1344 lustre/osc/Makefile
1345 lustre/osc/autoMakefile
1346 lustre/ost/Makefile
1347 lustre/ost/autoMakefile
1348 lustre/mgc/Makefile
1349 lustre/mgc/autoMakefile
1350 lustre/mgs/Makefile
1351 lustre/mgs/autoMakefile
1352 lustre/ptlrpc/Makefile
1353 lustre/ptlrpc/autoMakefile
1354 lustre/quota/Makefile
1355 lustre/quota/autoMakefile
1356 lustre/scripts/Makefile
1357 lustre/scripts/version_tag.pl
1358 lustre/tests/Makefile
1359 lustre/utils/Makefile
1360 ])
1361 case $lb_target_os in
1362         darwin)
1363                 AC_CONFIG_FILES([ lustre/obdclass/darwin/Makefile ])
1364                 ;;
1365 esac
1366
1367 ])