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])
 344         AC_DEFINE(CONFIG_LDISKFS_FS_SECURITY, 1, [enable fs security])
 345 fi
 346
 347 AC_MSG_CHECKING([which backing filesystem to use])
 348 AC_MSG_RESULT([$BACKINGFS])
 349 AC_SUBST(BACKINGFS)
 350
 351 case $BACKINGFS in
 352         ext3)
 353                 # --- Check that ext3 and ext3 xattr are enabled in the kernel
 354                 LC_CONFIG_EXT3([],[
 355                         AC_MSG_ERROR([Lustre requires that ext3 is enabled in the kernel])
 356                 ],[
 357                         AC_MSG_WARN([Lustre requires that extended attributes for ext3 are enabled in the kernel])
 358                         AC_MSG_WARN([This build may fail.])
 359                 ])
 360                 ;;
 361         ldiskfs)
 362                 AC_MSG_CHECKING([which ldiskfs series to use])
 363                 case $LINUXRELEASE in
 364                 2.6.5*) LDISKFS_SERIES="2.6-suse.series" ;;
 365                 2.6.9*) LDISKFS_SERIES="2.6-rhel4.series" ;;
 366                 2.6.10-ac*) LDISKFS_SERIES="2.6-fc3.series" ;;
 367                 2.6.10*) LDISKFS_SERIES="2.6-rhel4.series" ;;
 368                 2.6.12*) LDISKFS_SERIES="2.6.12-vanilla.series" ;;
 369                 2.6.15*) LDISKFS_SERIES="2.6-fc5.series";;
 370                 2.6.16*) LDISKFS_SERIES="2.6-sles10.series";;
 371                 2.6.18*) LDISKFS_SERIES="2.6.18-vanilla.series";;
 372                 *) AC_MSG_WARN([Unknown kernel version $LINUXRELEASE, fix lustre/autoconf/lustre-core.m4])
 373                 esac
 374                 AC_MSG_RESULT([$LDISKFS_SERIES])
 375                 AC_SUBST(LDISKFS_SERIES)
 376                 ;;
 377 esac # $BACKINGFS
 378 ])
 379
 380 #
 381 # LC_CONFIG_PINGER
 382 #
 383 # the pinger is temporary, until we have the recovery node in place
 384 #
 385 AC_DEFUN([LC_CONFIG_PINGER],
 386 [AC_MSG_CHECKING([whether to enable pinger support])
 387 AC_ARG_ENABLE([pinger],
 388         AC_HELP_STRING([--disable-pinger],
 389                         [disable recovery pinger support]),
 390         [],[enable_pinger='yes'])
 391 AC_MSG_RESULT([$enable_pinger])
 392 if test x$enable_pinger != xno ; then
 393   AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
 394 fi
 395 ])
 396
 397 #
 398 # LC_CONFIG_LIBLUSTRE_RECOVERY
 399 #
 400 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
 401 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
 402 AC_ARG_ENABLE([liblustre-recovery],
 403         AC_HELP_STRING([--disable-liblustre-recovery],
 404                         [disable liblustre recovery support]),
 405         [],[enable_liblustre_recovery='yes'])
 406 AC_MSG_RESULT([$enable_liblustre_recovery])
 407 if test x$enable_liblustre_recovery != xno ; then
 408   AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
 409 fi
 410 ])
 411
 412 #
 413 # LC_CONFIG_OBD_BUFFER_SIZE
 414 #
 415 # the maximum buffer size of lctl ioctls
 416 #
 417 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
 418 [AC_MSG_CHECKING([maximum OBD ioctl size])
 419 AC_ARG_WITH([obd-buffer-size],
 420         AC_HELP_STRING([--with-obd-buffer-size=[size]],
 421                         [set lctl ioctl maximum bytes (default=8192)]),
 422         [
 423                 OBD_BUFFER_SIZE=$with_obd_buffer_size
 424         ],[
 425                 OBD_BUFFER_SIZE=8192
 426         ])
 427 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
 428 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
 429 ])
 430
 431 #
 432 # LC_STRUCT_STATFS
 433 #
 434 # AIX does not have statfs.f_namelen
 435 #
 436 AC_DEFUN([LC_STRUCT_STATFS],
 437 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
 438 LB_LINUX_TRY_COMPILE([
 439         #include <linux/vfs.h>
 440 ],[
 441         struct statfs sfs;
 442         sfs.f_namelen = 1;
 443 ],[
 444         AC_MSG_RESULT([yes])
 445         AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
 446 ],[
 447         AC_MSG_RESULT([no])
 448 ])
 449 ])
 450
 451 #
 452 # LC_READLINK_SSIZE_T
 453 #
 454 AC_DEFUN([LC_READLINK_SSIZE_T],
 455 [AC_MSG_CHECKING([if readlink returns ssize_t])
 456 AC_TRY_COMPILE([
 457         #include <unistd.h>
 458 ],[
 459         ssize_t readlink(const char *, char *, size_t);
 460 ],[
 461         AC_MSG_RESULT([yes])
 462         AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
 463 ],[
 464         AC_MSG_RESULT([no])
 465 ])
 466 ])
 467
 468 AC_DEFUN([LC_FUNC_PAGE_MAPPED],
 469 [AC_MSG_CHECKING([if kernel offers page_mapped])
 470 LB_LINUX_TRY_COMPILE([
 471         #include <linux/mm.h>
 472 ],[
 473         page_mapped(NULL);
 474 ],[
 475         AC_MSG_RESULT([yes])
 476         AC_DEFINE(HAVE_PAGE_MAPPED, 1, [page_mapped found])
 477 ],[
 478         AC_MSG_RESULT([no])
 479 ])
 480 ])
 481
 482 AC_DEFUN([LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL],
 483 [AC_MSG_CHECKING([if struct file_operations has an unlocked_ioctl field])
 484 LB_LINUX_TRY_COMPILE([
 485         #include <linux/fs.h>
 486 ],[
 487         struct file_operations fops;
 488         &fops.unlocked_ioctl;
 489 ],[
 490         AC_MSG_RESULT([yes])
 491         AC_DEFINE(HAVE_UNLOCKED_IOCTL, 1, [struct file_operations has an unlock ed_ioctl field])
 492 ],[
 493         AC_MSG_RESULT([no])
 494 ])
 495 ])
 496
 497 AC_DEFUN([LC_FILEMAP_POPULATE],
 498 [AC_MSG_CHECKING([for exported filemap_populate])
 499 LB_LINUX_TRY_COMPILE([
 500         #include <asm/page.h>
 501         #include <linux/mm.h>
 502 ],[
 503        filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
 504 ],[
 505         AC_MSG_RESULT([yes])
 506         AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
 507 ],[
 508         AC_MSG_RESULT([no])
 509 ])
 510 ])
 511
 512 AC_DEFUN([LC_D_ADD_UNIQUE],
 513 [AC_MSG_CHECKING([for d_add_unique])
 514 LB_LINUX_TRY_COMPILE([
 515         #include <linux/dcache.h>
 516 ],[
 517        d_add_unique(NULL, NULL);
 518 ],[
 519         AC_MSG_RESULT([yes])
 520         AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
 521 ],[
 522         AC_MSG_RESULT([no])
 523 ])
 524 ])
 525
 526 AC_DEFUN([LC_BIT_SPINLOCK_H],
 527 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
 528         AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
 529         LB_LINUX_TRY_COMPILE([
 530                 #include <asm/processor.h>
 531                 #include <linux/spinlock.h>
 532                 #include <linux/bit_spinlock.h>
 533         ],[],[
 534                 AC_MSG_RESULT([yes])
 535                 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
 536         ],[
 537                 AC_MSG_RESULT([no])
 538         ])
 539 ],
 540 [])
 541 ])
 542
 543 #
 544 # LC_POSIX_ACL_XATTR
 545 #
 546 # If we have xattr_acl.h
 547 #
 548 AC_DEFUN([LC_XATTR_ACL],
 549 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
 550         AC_MSG_CHECKING([if xattr_acl.h can be compiled])
 551         LB_LINUX_TRY_COMPILE([
 552                 #include <linux/xattr_acl.h>
 553         ],[],[
 554                 AC_MSG_RESULT([yes])
 555                 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
 556         ],[
 557                 AC_MSG_RESULT([no])
 558         ])
 559 ],
 560 [])
 561 ])
 562
 563 AC_DEFUN([LC_STRUCT_INTENT_FILE],
 564 [AC_MSG_CHECKING([if struct open_intent has a file field])
 565 LB_LINUX_TRY_COMPILE([
 566         #include <linux/fs.h>
 567         #include <linux/namei.h>
 568 ],[
 569         struct open_intent intent;
 570         &intent.file;
 571 ],[
 572         AC_MSG_RESULT([yes])
 573         AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
 574 ],[
 575         AC_MSG_RESULT([no])
 576 ])
 577 ])
 578
 579
 580 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
 581 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
 582         AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
 583         LB_LINUX_TRY_COMPILE([
 584                 #include <linux/posix_acl_xattr.h>
 585         ],[],[
 586                 AC_MSG_RESULT([yes])
 587                 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
 588
 589         ],[
 590                 AC_MSG_RESULT([no])
 591         ])
 592 $1
 593 ],[
 594 AC_MSG_RESULT([no])
 595 ])
 596 ])
 597
 598 AC_DEFUN([LC_LUSTRE_VERSION_H],
 599 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 600         rm -f "$LUSTRE/include/linux/lustre_version.h"
 601 ],[
 602         touch "$LUSTRE/include/linux/lustre_version.h"
 603         if test x$enable_server = xyes ; then
 604                 AC_MSG_WARN([Unpatched kernel detected.])
 605                 AC_MSG_WARN([Lustre servers cannot be built with an unpatched kernel;])
 606                 AC_MSG_WARN([disabling server build])
 607                 enable_server='no'
 608         fi
 609 ])
 610 ])
 611
 612 AC_DEFUN([LC_FUNC_SET_FS_PWD],
 613 [AC_MSG_CHECKING([if kernel exports show_task])
 614 have_show_task=0
 615         if grep -q "EXPORT_SYMBOL(show_task)" \
 616                  "$LINUX/fs/namespace.c" 2>/dev/null ; then
 617                 AC_DEFINE(HAVE_SET_FS_PWD, 1, [set_fs_pwd is exported])
 618                 AC_MSG_RESULT([yes])
 619         else
 620                 AC_MSG_RESULT([no])
 621         fi
 622 ])
 623
 624
 625 #
 626 # LC_FUNC_MS_FLOCK_LOCK
 627 #
 628 # SLES9 kernel has MS_FLOCK_LOCK sb flag
 629 #
 630 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
 631 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
 632 LB_LINUX_TRY_COMPILE([
 633         #include <linux/fs.h>
 634 ],[
 635         int flags = MS_FLOCK_LOCK;
 636 ],[
 637         AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
 638                 [kernel has MS_FLOCK_LOCK flag])
 639         AC_MSG_RESULT([yes])
 640 ],[
 641         AC_MSG_RESULT([no])
 642 ])
 643 ])
 644
 645 #
 646 # LC_FUNC_HAVE_CAN_SLEEP_ARG
 647 #
 648 # SLES9 kernel has third arg can_sleep
 649 # in fs/locks.c: flock_lock_file_wait()
 650 #
 651 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
 652 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 653 LB_LINUX_TRY_COMPILE([
 654         #include <linux/fs.h>
 655 ],[
 656         int cansleep;
 657         struct file *file;
 658         struct file_lock *file_lock;
 659         flock_lock_file_wait(file, file_lock, cansleep);
 660 ],[
 661         AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
 662                 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 663         AC_MSG_RESULT([yes])
 664 ],[
 665         AC_MSG_RESULT([no])
 666 ])
 667 ])
 668
 669 #
 670 # LC_FUNC_F_OP_FLOCK
 671 #
 672 # rhel4.2 kernel has f_op->flock field
 673 #
 674 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 675 [AC_MSG_CHECKING([if struct file_operations has flock field])
 676 LB_LINUX_TRY_COMPILE([
 677         #include <linux/fs.h>
 678 ],[
 679         struct file_operations ll_file_operations_flock;
 680         ll_file_operations_flock.flock = NULL;
 681 ],[
 682         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 683                 [struct file_operations has flock field])
 684         AC_MSG_RESULT([yes])
 685 ],[
 686         AC_MSG_RESULT([no])
 687 ])
 688 ])
 689
 690 #
 691 # LC_FUNC_MS_FLOCK_LOCK
 692 #
 693 # SLES9 kernel has MS_FLOCK_LOCK sb flag
 694 #
 695 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
 696 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
 697 LB_LINUX_TRY_COMPILE([
 698         #include <linux/fs.h>
 699 ],[
 700         int flags = MS_FLOCK_LOCK;
 701 ],[
 702         AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
 703                 [kernel has MS_FLOCK_LOCK flag])
 704         AC_MSG_RESULT([yes])
 705 ],[
 706         AC_MSG_RESULT([no])
 707 ])
 708 ])
 709
 710 #
 711 # LC_FUNC_HAVE_CAN_SLEEP_ARG
 712 #
 713 # SLES9 kernel has third arg can_sleep
 714 # in fs/locks.c: flock_lock_file_wait()
 715 #
 716 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
 717 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 718 LB_LINUX_TRY_COMPILE([
 719         #include <linux/fs.h>
 720 ],[
 721         int cansleep;
 722         struct file *file;
 723         struct file_lock *file_lock;
 724         flock_lock_file_wait(file, file_lock, cansleep);
 725 ],[
 726         AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
 727                 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 728         AC_MSG_RESULT([yes])
 729 ],[
 730         AC_MSG_RESULT([no])
 731 ])
 732 ])
 733
 734 #
 735 # LC_TASK_PPTR
 736 #
 737 # task struct has p_pptr instead of parent
 738 #
 739 AC_DEFUN([LC_TASK_PPTR],
 740 [AC_MSG_CHECKING([task p_pptr found])
 741 LB_LINUX_TRY_COMPILE([
 742         #include <linux/sched.h>
 743 ],[
 744         struct task_struct *p;
 745
 746         p = p->p_pptr;
 747 ],[
 748         AC_MSG_RESULT([yes])
 749         AC_DEFINE(HAVE_TASK_PPTR, 1, [task p_pptr found])
 750 ],[
 751         AC_MSG_RESULT([no])
 752 ])
 753 ])
 754
 755 #
 756 # LC_FUNC_F_OP_FLOCK
 757 #
 758 # rhel4.2 kernel has f_op->flock field
 759 #
 760 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 761 [AC_MSG_CHECKING([if struct file_operations has flock field])
 762 LB_LINUX_TRY_COMPILE([
 763         #include <linux/fs.h>
 764 ],[
 765         struct file_operations ll_file_operations_flock;
 766         ll_file_operations_flock.flock = NULL;
 767 ],[
 768         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 769                 [struct file_operations has flock field])
 770         AC_MSG_RESULT([yes])
 771 ],[
 772         AC_MSG_RESULT([no])
 773 ])
 774 ])
 775
 776 # LC_INODE_I_MUTEX
 777 # after 2.6.15 inode have i_mutex intead of i_sem
 778 AC_DEFUN([LC_INODE_I_MUTEX],
 779 [AC_MSG_CHECKING([use inode have i_mutex ])
 780 LB_LINUX_TRY_COMPILE([
 781         #include <linux/mutex.h>
 782         #include <linux/fs.h>
 783 ],[
 784         struct inode i;
 785
 786         mutex_unlock(&i.i_mutex);
 787 ],[
 788         AC_MSG_RESULT(yes)
 789         AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
 790                 [after 2.6.15 inode have i_mutex intead of i_sem])
 791 ],[
 792         AC_MSG_RESULT(NO)
 793 ])
 794 ])
 795
 796
 797 # LC_DQUOTOFF_MUTEX
 798 # after 2.6.17 dquote use mutex instead if semaphore
 799 AC_DEFUN([LC_DQUOTOFF_MUTEX],
 800 [AC_MSG_CHECKING([use dqonoff_mutex])
 801 LB_LINUX_TRY_COMPILE([
 802         #include <linux/mutex.h>
 803         #include <linux/fs.h>
 804         #include <linux/quota.h>
 805 ],[
 806         struct quota_info dq;
 807
 808         mutex_unlock(&dq.dqonoff_mutex);
 809 ],[
 810         AC_MSG_RESULT(yes)
 811         AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
 812                 [after 2.6.17 dquote use mutex instead if semaphore])
 813 ],[
 814         AC_MSG_RESULT(NO)
 815 ])
 816 ])
 817
 818 #
 819 # LC_STATFS_DENTRY_PARAM
 820 # starting from 2.6.18 linux kernel uses dentry instead of
 821 # super_block for first vfs_statfs argument
 822 #
 823 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
 824 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
 825 LB_LINUX_TRY_COMPILE([
 826         #include <linux/fs.h>
 827 ],[
 828         int vfs_statfs(struct dentry *, struct kstatfs *);
 829 ],[
 830         AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
 831                 [first parameter of vfs_statfs is dentry])
 832         AC_MSG_RESULT([yes])
 833 ],[
 834         AC_MSG_RESULT([no])
 835 ])
 836 ])
 837
 838 #
 839 # LC_VFS_KERN_MOUNT
 840 # starting from 2.6.18 kernel don`t export do_kern_mount
 841 # and want to use vfs_kern_mount instead.
 842 #
 843 AC_DEFUN([LC_VFS_KERN_MOUNT],
 844 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
 845 LB_LINUX_TRY_COMPILE([
 846         #include <linux/mount.h>
 847 ],[
 848         vfs_kern_mount(NULL, 0, NULL, NULL);
 849 ],[
 850         AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
 851                 [vfs_kern_mount exist in kernel])
 852         AC_MSG_RESULT([yes])
 853 ],[
 854         AC_MSG_RESULT([no])
 855 ])
 856 ])
 857
 858 #
 859 # LC_INVALIDATEPAGE_RETURN_INT
 860 # more 2.6 api changes.  return type for the invalidatepage
 861 # address_space_operation is 'void' in new kernels but 'int' in old
 862 #
 863 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
 864 [AC_MSG_CHECKING([invalidatepage has return int])
 865 LB_LINUX_TRY_COMPILE([
 866         #include <linux/buffer_head.h>
 867 ],[
 868         int rc = block_invalidatepage(NULL, 0);
 869 ],[
 870         AC_MSG_RESULT(yes)
 871         AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
 872                 [Define if return type of invalidatepage should be int])
 873 ],[
 874         AC_MSG_RESULT(NO)
 875 ])
 876 ])
 877
 878 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
 879 # more 2.6 API changes. 2.6.18 umount_begin has different parameters
 880 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
 881 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
 882 tmp_flags="$EXTRA_KCFLAGS"
 883 EXTRA_KCFLAGS="-Werror"
 884 LB_LINUX_TRY_COMPILE([
 885         #include <linux/fs.h>
 886
 887         struct vfsmount;
 888         static void cfg_umount_begin (struct vfsmount *v, int flags)
 889         {
 890                 ;
 891         }
 892
 893         static struct super_operations cfg_super_operations = {
 894                 .umount_begin   = cfg_umount_begin,
 895         };
 896 ],[
 897         cfg_super_operations.umount_begin(NULL,0);
 898 ],[
 899         AC_MSG_RESULT(yes)
 900         AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
 901                 [Define umount_begin need second argument])
 902 ],[
 903         AC_MSG_RESULT(NO)
 904 ])
 905 EXTRA_KCFLAGS="$tmp_flags"
 906 ])
 907
 908 # 2.6.19 API changes
 909 # inode don`t have i_blksize field
 910 AC_DEFUN([LC_INODE_BLKSIZE],
 911 [AC_MSG_CHECKING([inode has i_blksize field])
 912 LB_LINUX_TRY_COMPILE([
 913 #include <linux/fs.h>
 914 ],[
 915         struct inode i;
 916         i.i_blksize = 0;
 917 ],[
 918         AC_MSG_RESULT(yes)
 919         AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
 920                 [struct inode has i_blksize field])
 921 ],[
 922         AC_MSG_RESULT(NO)
 923 ])
 924 ])
 925
 926 # LC_VFS_READDIR_U64_INO
 927 # 2.6.19 use u64 for inode number instead of inode_t
 928 AC_DEFUN([LC_VFS_READDIR_U64_INO],
 929 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
 930 tmp_flags="$EXTRA_KCFLAGS"
 931 EXTRA_KCFLAGS="-Werror"
 932 LB_LINUX_TRY_COMPILE([
 933 #include <linux/fs.h>
 934         int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
 935                       u64 ino, unsigned int d_type)
 936         {
 937                 return 0;
 938         }
 939 ],[
 940         filldir_t filter;
 941
 942         filter = fillonedir;
 943         return 1;
 944 ],[
 945         AC_MSG_RESULT(yes)
 946         AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
 947                 [if vfs_readdir need 64bit inode number])
 948 ],[
 949         AC_MSG_RESULT(NO)
 950 ])
 951 EXTRA_KCFLAGS="$tmp_flags"
 952 ])
 953
 954 # LC_GENERIC_FILE_WRITE
 955 # 2.6.19 introduce do_sync_write instead of
 956 # generic_file_write
 957 AC_DEFUN([LC_GENERIC_FILE_WRITE],
 958 [AC_MSG_CHECKING([use generic_file_write])
 959 LB_LINUX_TRY_COMPILE([
 960         #include <linux/fs.h>
 961 ],[
 962         int result = generic_file_read(NULL, NULL, 0, 0);
 963 ],[
 964         AC_MSG_RESULT(yes)
 965         AC_DEFINE(HAVE_GENERIC_FILE_WRITE, 1,
 966                 [use generic_file_write])
 967 ],[
 968         AC_MSG_RESULT(NO)
 969 ])
 970 ])
 971
 972 # LC_GENERIC_FILE_READ
 973 # 2.6.19 need to use do_sync_read instead of
 974 # generic_file_read
 975 AC_DEFUN([LC_GENERIC_FILE_READ],
 976 [AC_MSG_CHECKING([use generic_file_read])
 977 LB_LINUX_TRY_COMPILE([
 978         #include <linux/fs.h>
 979 ],[
 980         int result = generic_file_read(NULL, NULL, 0, 0);
 981 ],[
 982         AC_MSG_RESULT(yes)
 983         AC_DEFINE(HAVE_GENERIC_FILE_READ, 1,
 984                 [use generic_file_read])
 985 ],[
 986         AC_MSG_RESULT(NO)
 987 ])
 988 ])
 989
 990 # LC_NR_PAGECACHE
 991 # 2.6.18 don`t export nr_pagecahe
 992 AC_DEFUN([LC_NR_PAGECACHE],
 993 [AC_MSG_CHECKING([kernel export nr_pagecache])
 994 LB_LINUX_TRY_COMPILE([
 995         #include <linux/pagemap.h>
 996 ],[
 997         return atomic_read(&nr_pagecache);
 998 ],[
 999         AC_MSG_RESULT(yes)
1000         AC_DEFINE(HAVE_NR_PAGECACHE, 1,
1001                 [is kernel export nr_pagecache])
1002 ],[
1003         AC_MSG_RESULT(NO)
1004 ])
1005 ])
1006
1007 # LC_WB_RANGE_START
1008 # 2.6.20 rename struct writeback fields
1009 AC_DEFUN([LC_WB_RANGE_START],
1010 [AC_MSG_CHECKING([kernel has range_start in struct writeback_control])
1011 LB_LINUX_TRY_COMPILE([
1012         #include <linux/fs.h>
1013         #include <linux/sched.h>
1014         #include <linux/writeback.h>
1015 ],[
1016         struct writeback_control wb;
1017
1018         wb.range_start = 0;
1019 ],[
1020         AC_MSG_RESULT(yes)
1021         AC_DEFINE(HAVE_WB_RANGE_START, 1,
1022                   [writeback control has range_start field])
1023 ],[
1024         AC_MSG_RESULT(NO)
1025 ])
1026 ])
1027
1028 #
1029 # LC_PROG_LINUX
1030 #
1031 # Lustre linux kernel checks
1032 #
1033 AC_DEFUN([LC_PROG_LINUX],
1034 [ LC_LUSTRE_VERSION_H
1035 if test x$enable_server = xyes ; then
1036         LC_CONFIG_BACKINGFS
1037 fi
1038 LC_CONFIG_PINGER
1039 LC_CONFIG_LIBLUSTRE_RECOVERY
1040 LC_CONFIG_QUOTA
1041
1042 LC_TASK_PPTR
1043
1044 LC_STRUCT_KIOBUF
1045 LC_FUNC_COND_RESCHED
1046 LC_FUNC_ZAP_PAGE_RANGE
1047 LC_FUNC_PDE
1048 LC_FUNC_DIRECT_IO
1049 LC_HEADER_MM_INLINE
1050 LC_STRUCT_INODE
1051 LC_FUNC_REGISTER_CACHE
1052 LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1053 LC_FUNC_DEV_SET_RDONLY
1054 LC_FUNC_FILEMAP_FDATAWRITE
1055 LC_STRUCT_STATFS
1056 LC_FUNC_PAGE_MAPPED
1057 LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL
1058 LC_FILEMAP_POPULATE
1059 LC_D_ADD_UNIQUE
1060 LC_BIT_SPINLOCK_H
1061 LC_XATTR_ACL
1062 LC_STRUCT_INTENT_FILE
1063 LC_POSIX_ACL_XATTR_H
1064 LC_FUNC_SET_FS_PWD
1065 LC_FUNC_MS_FLOCK_LOCK
1066 LC_FUNC_HAVE_CAN_SLEEP_ARG
1067 LC_FUNC_F_OP_FLOCK
1068 LC_QUOTA_READ
1069 LC_COOKIE_FOLLOW_LINK
1070
1071 # 2.6.15
1072 LC_INODE_I_MUTEX
1073
1074 # 2.6.17
1075 LC_DQUOTOFF_MUTEX
1076
1077 # 2.6.18
1078 LC_NR_PAGECACHE
1079 LC_STATFS_DENTRY_PARAM
1080 LC_VFS_KERN_MOUNT
1081 LC_INVALIDATEPAGE_RETURN_INT
1082 LC_UMOUNTBEGIN_HAS_VFSMOUNT
1083 LC_WB_RANGE_START
1084
1085 # 2.6.19
1086 LC_INODE_BLKSIZE
1087 LC_VFS_READDIR_U64_INO
1088 LC_GENERIC_FILE_READ
1089 LC_GENERIC_FILE_WRITE
1090 ])
1091
1092 #
1093 # LC_CONFIG_CLIENT_SERVER
1094 #
1095 # Build client/server sides of Lustre
1096 #
1097 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1098 [AC_MSG_CHECKING([whether to build Lustre server support])
1099 AC_ARG_ENABLE([server],
1100         AC_HELP_STRING([--disable-server],
1101                         [disable Lustre server support]),
1102         [],[enable_server='yes'])
1103 AC_MSG_RESULT([$enable_server])
1104
1105 AC_MSG_CHECKING([whether to build Lustre client support])
1106 AC_ARG_ENABLE([client],
1107         AC_HELP_STRING([--disable-client],
1108                         [disable Lustre client support]),
1109         [],[enable_client='yes'])
1110 AC_MSG_RESULT([$enable_client])])
1111
1112 #
1113 # LC_CONFIG_LIBLUSTRE
1114 #
1115 # whether to build liblustre
1116 #
1117 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1118 [AC_MSG_CHECKING([whether to build Lustre library])
1119 AC_ARG_ENABLE([liblustre],
1120         AC_HELP_STRING([--disable-liblustre],
1121                         [disable building of Lustre library]),
1122         [],[enable_liblustre=$with_sysio])
1123 AC_MSG_RESULT([$enable_liblustre])
1124 # only build sysio if liblustre is built
1125 with_sysio="$enable_liblustre"
1126
1127 AC_MSG_CHECKING([whether to build liblustre tests])
1128 AC_ARG_ENABLE([liblustre-tests],
1129         AC_HELP_STRING([--enable-liblustre-tests],
1130                         [enable liblustre tests, if --disable-tests is used]),
1131         [],[enable_liblustre_tests=$enable_tests])
1132 if test x$enable_liblustre != xyes ; then
1133    enable_liblustre_tests='no'
1134 fi
1135 AC_MSG_RESULT([$enable_liblustre_tests])
1136
1137 AC_MSG_CHECKING([whether to build mpitests])
1138 AC_ARG_ENABLE([mpitests],
1139         AC_HELP_STRING([--enable-mpitests],
1140                         [build liblustre mpi tests]),
1141         [],[enable_mpitests=no])
1142 AC_MSG_RESULT([$enable_mpitests])
1143
1144 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1145 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1146
1147 LC_CONFIG_PINGER
1148 LC_CONFIG_LIBLUSTRE_RECOVERY
1149 ])
1150
1151 #
1152 # LC_CONFIG_QUOTA
1153 #
1154 # whether to enable quota support
1155 #
1156 AC_DEFUN([LC_CONFIG_QUOTA],
1157 [AC_MSG_CHECKING([whether to enable quota support])
1158 AC_ARG_ENABLE([quota],
1159         AC_HELP_STRING([--enable-quota],
1160                         [enable quota support]),
1161         [],[enable_quota='yes'])
1162 AC_MSG_RESULT([$enable_quota])
1163 if test x$linux25 != xyes; then
1164    enable_quota='no'
1165 fi
1166 if test x$enable_quota != xno; then
1167    AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
1168 fi
1169 ])
1170
1171 AC_DEFUN([LC_QUOTA_READ],
1172 [AC_MSG_CHECKING([if kernel supports quota_read])
1173 LB_LINUX_TRY_COMPILE([
1174         #include <linux/fs.h>
1175 ],[
1176         struct super_operations sp;
1177         void *i = (void *)sp.quota_read;
1178 ],[
1179         AC_MSG_RESULT([yes])
1180         AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
1181 ],[
1182         AC_MSG_RESULT([no])
1183 ])
1184 ])
1185
1186 #
1187 # LC_COOKIE_FOLLOW_LINK
1188 #
1189 # kernel 2.6.13+ ->follow_link returns a cookie
1190 #
1191
1192 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
1193 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
1194 LB_LINUX_TRY_COMPILE([
1195         #include <linux/fs.h>
1196         #include <linux/namei.h>
1197 ],[
1198         struct dentry dentry;
1199         struct nameidata nd;
1200
1201         dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
1202 ],[
1203         AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
1204         AC_MSG_RESULT([yes])
1205 ],[
1206         AC_MSG_RESULT([no])
1207 ])
1208 ])
1209
1210 #
1211 # LC_CONFIGURE
1212 #
1213 # other configure checks
1214 #
1215 AC_DEFUN([LC_CONFIGURE],
1216 [LC_CONFIG_OBD_BUFFER_SIZE
1217
1218 # include/liblustre.h
1219 AC_CHECK_HEADERS([asm/page.h sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1220
1221 # include/lustre/lustre_user.h
1222 # See note there re: __ASM_X86_64_PROCESSOR_H
1223 AC_CHECK_HEADERS([linux/quota.h])
1224
1225 # liblustre/llite_lib.h
1226 AC_CHECK_HEADERS([xtio.h file.h])
1227
1228 # liblustre/dir.c
1229 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1230
1231 # liblustre/lutil.c
1232 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1233 AC_CHECK_FUNCS([inet_ntoa])
1234
1235 # libsysio/src/readlink.c
1236 LC_READLINK_SSIZE_T
1237
1238 # utils/llverfs.c
1239 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1240
1241 # Super safe df
1242 AC_ARG_ENABLE([mindf],
1243       AC_HELP_STRING([--enable-mindf],
1244                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1245       [],[])
1246 if test "$enable_mindf" = "yes" ;  then
1247       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1248 fi
1249
1250 ])
1251
1252 #
1253 # LC_CONDITIONALS
1254 #
1255 # AM_CONDITIONALS for lustre
1256 #
1257 AC_DEFUN([LC_CONDITIONALS],
1258 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1259 AM_CONDITIONAL(LDISKFS, test x$enable_ldiskfs = xyes)
1260 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
1261 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1262 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1263 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1264 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1265 AM_CONDITIONAL(QUOTA, test x$enable_quota = xyes)
1266 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1267 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1268 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1269 ])
1270
1271 #
1272 # LC_CONFIG_FILES
1273 #
1274 # files that should be generated with AC_OUTPUT
1275 #
1276 AC_DEFUN([LC_CONFIG_FILES],
1277 [AC_CONFIG_FILES([
1278 lustre/Makefile
1279 lustre/autoMakefile
1280 lustre/autoconf/Makefile
1281 lustre/contrib/Makefile
1282 lustre/doc/Makefile
1283 lustre/include/Makefile
1284 lustre/include/lustre_ver.h
1285 lustre/include/linux/Makefile
1286 lustre/include/lustre/Makefile
1287 lustre/kernel_patches/targets/2.6-suse.target
1288 lustre/kernel_patches/targets/2.6-vanilla.target
1289 lustre/kernel_patches/targets/2.6-rhel4.target
1290 lustre/kernel_patches/targets/2.6-fc5.target
1291 lustre/kernel_patches/targets/2.6-patchless.target
1292 lustre/kernel_patches/targets/2.6-sles10.target
1293 lustre/kernel_patches/targets/hp_pnnl-2.4.target
1294 lustre/kernel_patches/targets/rh-2.4.target
1295 lustre/kernel_patches/targets/rhel-2.4.target
1296 lustre/kernel_patches/targets/suse-2.4.21-2.target
1297 lustre/kernel_patches/targets/sles-2.4.target
1298 lustre/ldiskfs/Makefile
1299 lustre/ldiskfs/autoMakefile
1300 lustre/ldlm/Makefile
1301 lustre/liblustre/Makefile
1302 lustre/liblustre/tests/Makefile
1303 lustre/llite/Makefile
1304 lustre/llite/autoMakefile
1305 lustre/lov/Makefile
1306 lustre/lov/autoMakefile
1307 lustre/lvfs/Makefile
1308 lustre/lvfs/autoMakefile
1309 lustre/mdc/Makefile
1310 lustre/mdc/autoMakefile
1311 lustre/mds/Makefile
1312 lustre/mds/autoMakefile
1313 lustre/obdclass/Makefile
1314 lustre/obdclass/autoMakefile
1315 lustre/obdclass/linux/Makefile
1316 lustre/obdecho/Makefile
1317 lustre/obdecho/autoMakefile
1318 lustre/obdfilter/Makefile
1319 lustre/obdfilter/autoMakefile
1320 lustre/osc/Makefile
1321 lustre/osc/autoMakefile
1322 lustre/ost/Makefile
1323 lustre/ost/autoMakefile
1324 lustre/mgc/Makefile
1325 lustre/mgc/autoMakefile
1326 lustre/mgs/Makefile
1327 lustre/mgs/autoMakefile
1328 lustre/ptlrpc/Makefile
1329 lustre/ptlrpc/autoMakefile
1330 lustre/quota/Makefile
1331 lustre/quota/autoMakefile
1332 lustre/scripts/Makefile
1333 lustre/scripts/version_tag.pl
1334 lustre/tests/Makefile
1335 lustre/utils/Makefile
1336 ])
1337 case $lb_target_os in
1338         darwin)
1339                 AC_CONFIG_FILES([ lustre/obdclass/darwin/Makefile ])
1340                 ;;
1341 esac
1342
1343 ])