lustre/autoconf/lustre-core.m4

   1 #* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2 #* vim:expandtab:shiftwidth=8:tabstop=8:
   3 #
   4 # LC_CONFIG_SRCDIR
   5 #
   6 # Wrapper for AC_CONFIG_SUBDIR
   7 #
   8 AC_DEFUN([LC_CONFIG_SRCDIR],
   9 [AC_CONFIG_SRCDIR([lustre/obdclass/obdo.c])
  10 ])
  11
  12 #
  13 # LC_PATH_DEFAULTS
  14 #
  15 # lustre specific paths
  16 #
  17 AC_DEFUN([LC_PATH_DEFAULTS],
  18 [# ptlrpc kernel build requires this
  19 LUSTRE="$PWD/lustre"
  20 AC_SUBST(LUSTRE)
  21
  22 # mount.lustre
  23 rootsbindir='/sbin'
  24 AC_SUBST(rootsbindir)
  25
  26 demodir='$(docdir)/demo'
  27 AC_SUBST(demodir)
  28
  29 pkgexampledir='${pkgdatadir}/examples'
  30 AC_SUBST(pkgexampledir)
  31 ])
  32
  33 #
  34 # LC_TARGET_SUPPORTED
  35 #
  36 # is the target os supported?
  37 #
  38 AC_DEFUN([LC_TARGET_SUPPORTED],
  39 [case $target_os in
  40         linux* | darwin*)
  41 $1
  42                 ;;
  43         *)
  44 $2
  45                 ;;
  46 esac
  47 ])
  48
  49 #
  50 # LC_CONFIG_EXT3
  51 #
  52 # that ext3 is enabled in the kernel
  53 #
  54 AC_DEFUN([LC_CONFIG_EXT3],
  55 [LB_LINUX_CONFIG([EXT3_FS],[],[
  56         LB_LINUX_CONFIG([EXT3_FS_MODULE],[],[$2])
  57 ])
  58 LB_LINUX_CONFIG([EXT3_FS_XATTR],[$1],[$3])
  59 ])
  60
  61 #
  62 # LC_FSHOOKS
  63 #
  64 # If we have (and can build) fshooks.h
  65 #
  66 AC_DEFUN([LC_FSHOOKS],
  67 [LB_CHECK_FILE([$LINUX/include/linux/fshooks.h],[
  68         AC_MSG_CHECKING([if fshooks.h can be compiled])
  69         LB_LINUX_TRY_COMPILE([
  70                 #include <linux/fshooks.h>
  71         ],[],[
  72                 AC_MSG_RESULT([yes])
  73         ],[
  74                 AC_MSG_RESULT([no])
  75                 AC_MSG_WARN([You might have better luck with gcc 3.3.x.])
  76                 AC_MSG_WARN([You can set CC=gcc33 before running configure.])
  77                 AC_MSG_ERROR([Your compiler cannot build fshooks.h.])
  78         ])
  79 $1
  80 ],[
  81 $2
  82 ])
  83 ])
  84
  85 #
  86 # LC_STRUCT_KIOBUF
  87 #
  88 # rh 2.4.18 has iobuf->dovary, but other kernels do not
  89 #
  90 AC_DEFUN([LC_STRUCT_KIOBUF],
  91 [AC_MSG_CHECKING([if struct kiobuf has a dovary field])
  92 LB_LINUX_TRY_COMPILE([
  93         #include <linux/iobuf.h>
  94 ],[
  95         struct kiobuf iobuf;
  96         iobuf.dovary = 1;
  97 ],[
  98         AC_MSG_RESULT([yes])
  99         AC_DEFINE(HAVE_KIOBUF_DOVARY, 1, [struct kiobuf has a dovary field])
 100 ],[
 101         AC_MSG_RESULT([no])
 102 ])
 103 ])
 104
 105 #
 106 # LC_FUNC_COND_RESCHED
 107 #
 108 # cond_resched() was introduced in 2.4.20
 109 #
 110 AC_DEFUN([LC_FUNC_COND_RESCHED],
 111 [AC_MSG_CHECKING([if kernel offers cond_resched])
 112 LB_LINUX_TRY_COMPILE([
 113         #include <linux/sched.h>
 114 ],[
 115         cond_resched();
 116 ],[
 117         AC_MSG_RESULT([yes])
 118         AC_DEFINE(HAVE_COND_RESCHED, 1, [cond_resched found])
 119 ],[
 120         AC_MSG_RESULT([no])
 121 ])
 122 ])
 123
 124 #
 125 # LC_FUNC_ZAP_PAGE_RANGE
 126 #
 127 # if zap_page_range() takes a vma arg
 128 #
 129 AC_DEFUN([LC_FUNC_ZAP_PAGE_RANGE],
 130 [AC_MSG_CHECKING([if zap_page_range with vma parameter])
 131 ZAP_PAGE_RANGE_VMA="`grep -c 'zap_page_range.*struct vm_area_struct' $LINUX/include/linux/mm.h`"
 132 if test "$ZAP_PAGE_RANGE_VMA" != 0 ; then
 133         AC_DEFINE(ZAP_PAGE_RANGE_VMA, 1, [zap_page_range with vma parameter])
 134         AC_MSG_RESULT([yes])
 135 else
 136         AC_MSG_RESULT([no])
 137 fi
 138 ])
 139
 140 #
 141 # LC_FUNC_PDE
 142 #
 143 # if proc_fs.h defines PDE()
 144 #
 145 AC_DEFUN([LC_FUNC_PDE],
 146 [AC_MSG_CHECKING([if kernel defines PDE])
 147 HAVE_PDE="`grep -c 'proc_dir_entry..PDE' $LINUX/include/linux/proc_fs.h`"
 148 if test "$HAVE_PDE" != 0 ; then
 149         AC_DEFINE(HAVE_PDE, 1, [the kernel defines PDE])
 150         AC_MSG_RESULT([yes])
 151 else
 152         AC_MSG_RESULT([no])
 153 fi
 154 ])
 155
 156 #
 157 # LC_FUNC_FILEMAP_FDATASYNC
 158 #
 159 # if filemap_fdatasync() exists
 160 #
 161 AC_DEFUN([LC_FUNC_FILEMAP_FDATAWRITE],
 162 [AC_MSG_CHECKING([whether filemap_fdatawrite() is defined])
 163 LB_LINUX_TRY_COMPILE([
 164         #include <linux/fs.h>
 165 ],[
 166         int (*foo)(struct address_space *)= filemap_fdatawrite;
 167 ],[
 168         AC_MSG_RESULT([yes])
 169         AC_DEFINE(HAVE_FILEMAP_FDATAWRITE, 1, [filemap_fdatawrite() found])
 170 ],[
 171         AC_MSG_RESULT([no])
 172 ])
 173 ])
 174
 175 #
 176 # LC_FUNC_DIRECT_IO
 177 #
 178 # if direct_IO takes a struct file argument
 179 #
 180 AC_DEFUN([LC_FUNC_DIRECT_IO],
 181 [AC_MSG_CHECKING([if kernel passes struct file to direct_IO])
 182 HAVE_DIO_FILE="`grep -c 'direct_IO.*struct file' $LINUX/include/linux/fs.h`"
 183 if test "$HAVE_DIO_FILE" != 0 ; then
 184         AC_DEFINE(HAVE_DIO_FILE, 1, [the kernel passes struct file to direct_IO])
 185         AC_MSG_RESULT(yes)
 186 else
 187         AC_MSG_RESULT(no)
 188 fi
 189 ])
 190
 191 #
 192 # LC_HEADER_MM_INLINE
 193 #
 194 # RHEL kernels define page_count in mm_inline.h
 195 #
 196 AC_DEFUN([LC_HEADER_MM_INLINE],
 197 [AC_MSG_CHECKING([if kernel has mm_inline.h header])
 198 LB_LINUX_TRY_COMPILE([
 199         #include <linux/mm_inline.h>
 200 ],[
 201         #ifndef page_count
 202         #error mm_inline.h does not define page_count
 203         #endif
 204 ],[
 205         AC_MSG_RESULT([yes])
 206         AC_DEFINE(HAVE_MM_INLINE, 1, [mm_inline found])
 207 ],[
 208         AC_MSG_RESULT([no])
 209 ])
 210 ])
 211
 212 #
 213 # LC_STRUCT_INODE
 214 #
 215 # if inode->i_alloc_sem exists
 216 #
 217 AC_DEFUN([LC_STRUCT_INODE],
 218 [AC_MSG_CHECKING([if struct inode has i_alloc_sem])
 219 LB_LINUX_TRY_COMPILE([
 220         #include <linux/fs.h>
 221         #include <linux/version.h>
 222 ],[
 223         #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,24))
 224         #error "down_read_trylock broken before 2.4.24"
 225         #endif
 226         struct inode i;
 227         return (char *)&i.i_alloc_sem - (char *)&i;
 228 ],[
 229         AC_MSG_RESULT([yes])
 230         AC_DEFINE(HAVE_I_ALLOC_SEM, 1, [struct inode has i_alloc_sem])
 231 ],[
 232         AC_MSG_RESULT([no])
 233 ])
 234 ])
 235
 236 #
 237 # LC_FUNC_REGISTER_CACHE
 238 #
 239 # if register_cache() is defined by kernel
 240 #
 241 AC_DEFUN([LC_FUNC_REGISTER_CACHE],
 242 [AC_MSG_CHECKING([if kernel defines register_cache()])
 243 LB_LINUX_TRY_COMPILE([
 244         #include <linux/list.h>
 245         #include <linux/cache_def.h>
 246 ],[
 247         struct cache_definition cache;
 248 ],[
 249         AC_MSG_RESULT([yes])
 250         AC_DEFINE(HAVE_REGISTER_CACHE, 1, [register_cache found])
 251         AC_MSG_CHECKING([if kernel expects return from cache shrink function])
 252         HAVE_CACHE_RETURN_INT="`grep -c 'int.*shrink' $LINUX/include/linux/cache_def.h`"
 253         if test "$HAVE_CACHE_RETURN_INT" != 0 ; then
 254                 AC_DEFINE(HAVE_CACHE_RETURN_INT, 1, [kernel expects return from shrink_cache])
 255                 AC_MSG_RESULT(yes)
 256         else
 257                 AC_MSG_RESULT(no)
 258         fi
 259 ],[
 260         AC_MSG_RESULT([no])
 261 ])
 262 ])
 263
 264 #
 265 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
 266 #
 267 # check for our patched grab_cache_page_nowait_gfp() function
 268 #
 269 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
 270 [AC_MSG_CHECKING([if kernel defines grab_cache_page_nowait_gfp()])
 271 HAVE_GCPN_GFP="`grep -c 'grab_cache_page_nowait_gfp' $LINUX/include/linux/pagemap.h`"
 272 if test "$HAVE_GCPN_GFP" != 0 ; then
 273         AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
 274                 [kernel has grab_cache_page_nowait_gfp()])
 275         AC_MSG_RESULT(yes)
 276 else
 277         AC_MSG_RESULT(no)
 278 fi
 279 ])
 280
 281 #
 282 # LC_FUNC_DEV_SET_RDONLY
 283 #
 284 # check for the old-style dev_set_rdonly which took an extra "devno" param
 285 # and can only set a single device to discard writes at one time
 286 #
 287 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
 288 [AC_MSG_CHECKING([if kernel has new dev_set_rdonly])
 289 LB_LINUX_TRY_COMPILE([
 290         #include <linux/fs.h>
 291 ],[
 292         #ifndef HAVE_CLEAR_RDONLY_ON_PUT
 293         #error needs to be patched by lustre kernel patches from Lustre version 1.4.3 or above.
 294         #endif
 295 ],[
 296         AC_MSG_RESULT([yes])
 297         AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly])
 298 ],[
 299         AC_MSG_RESULT([no, Linux kernel source needs to be patches by lustre
 300 kernel patches from Lustre version 1.4.3 or above.])
 301 ])
 302 ])
 303
 304 #
 305 # LC_CONFIG_BACKINGFS
 306 #
 307 # setup, check the backing filesystem
 308 #
 309 AC_DEFUN([LC_CONFIG_BACKINGFS],
 310 [
 311 BACKINGFS="ldiskfs"
 312
 313 if test x$with_ldiskfs = xno ; then
 314         BACKINGFS="ext3"
 315
 316         if test x$linux25$enable_server = xyesyes ; then
 317                 AC_MSG_ERROR([ldiskfs is required for 2.6-based servers.])
 318         fi
 319
 320         # --- Check that ext3 and ext3 xattr are enabled in the kernel
 321         LC_CONFIG_EXT3([],[
 322                 AC_MSG_ERROR([Lustre requires that ext3 is enabled in the kernel])
 323         ],[
 324                 AC_MSG_WARN([Lustre requires that extended attributes for ext3 are enabled in the kernel])
 325                 AC_MSG_WARN([This build may fail.])
 326         ])
 327 else
 328         # ldiskfs is enabled
 329         LB_DEFINE_LDISKFS_OPTIONS
 330 fi #ldiskfs
 331
 332 AC_MSG_CHECKING([which backing filesystem to use])
 333 AC_MSG_RESULT([$BACKINGFS])
 334 AC_SUBST(BACKINGFS)
 335 ])
 336
 337 #
 338 # LC_CONFIG_PINGER
 339 #
 340 # the pinger is temporary, until we have the recovery node in place
 341 #
 342 AC_DEFUN([LC_CONFIG_PINGER],
 343 [AC_MSG_CHECKING([whether to enable pinger support])
 344 AC_ARG_ENABLE([pinger],
 345         AC_HELP_STRING([--disable-pinger],
 346                         [disable recovery pinger support]),
 347         [],[enable_pinger='yes'])
 348 AC_MSG_RESULT([$enable_pinger])
 349 if test x$enable_pinger != xno ; then
 350   AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
 351 fi
 352 ])
 353
 354 #
 355 # LC_CONFIG_CHECKSUM
 356 #
 357 # do checksum of bulk data between client and OST
 358 #
 359 AC_DEFUN([LC_CONFIG_CHECKSUM],
 360 [AC_MSG_CHECKING([whether to enable data checksum support])
 361 AC_ARG_ENABLE([checksum],
 362        AC_HELP_STRING([--disable-checksum],
 363                        [disable data checksum support]),
 364        [],[enable_checksum='yes'])
 365 AC_MSG_RESULT([$enable_checksum])
 366 if test x$enable_checksum != xno ; then
 367   AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
 368 fi
 369 ])
 370
 371 #
 372 # LC_CONFIG_HEALTH_CHECK_WRITE
 373 #
 374 # Turn off the actual write to the disk
 375 #
 376 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
 377 [AC_MSG_CHECKING([whether to enable a write with the health check])
 378 AC_ARG_ENABLE([health_write],
 379         AC_HELP_STRING([--enable-health_write],
 380                         [enable disk writes when doing health check]),
 381         [],[enable_health_write='no'])
 382 AC_MSG_RESULT([$enable_health_write])
 383 if test x$enable_health_write != xno ; then
 384   AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
 385 fi
 386 ])
 387
 388 #
 389 # LC_CONFIG_LIBLUSTRE_RECOVERY
 390 #
 391 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
 392 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
 393 AC_ARG_ENABLE([liblustre-recovery],
 394         AC_HELP_STRING([--disable-liblustre-recovery],
 395                         [disable liblustre recovery support]),
 396         [],[enable_liblustre_recovery='yes'])
 397 AC_MSG_RESULT([$enable_liblustre_recovery])
 398 if test x$enable_liblustre_recovery != xno ; then
 399   AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
 400 fi
 401 ])
 402
 403 #
 404 # LC_CONFIG_OBD_BUFFER_SIZE
 405 #
 406 # the maximum buffer size of lctl ioctls
 407 #
 408 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
 409 [AC_MSG_CHECKING([maximum OBD ioctl size])
 410 AC_ARG_WITH([obd-buffer-size],
 411         AC_HELP_STRING([--with-obd-buffer-size=[size]],
 412                         [set lctl ioctl maximum bytes (default=8192)]),
 413         [
 414                 OBD_BUFFER_SIZE=$with_obd_buffer_size
 415         ],[
 416                 OBD_BUFFER_SIZE=8192
 417         ])
 418 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
 419 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
 420 ])
 421
 422 #
 423 # LC_STRUCT_STATFS
 424 #
 425 # AIX does not have statfs.f_namelen
 426 #
 427 AC_DEFUN([LC_STRUCT_STATFS],
 428 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
 429 LB_LINUX_TRY_COMPILE([
 430         #include <linux/vfs.h>
 431 ],[
 432         struct statfs sfs;
 433         sfs.f_namelen = 1;
 434 ],[
 435         AC_MSG_RESULT([yes])
 436         AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
 437 ],[
 438         AC_MSG_RESULT([no])
 439 ])
 440 ])
 441
 442 #
 443 # LC_READLINK_SSIZE_T
 444 #
 445 AC_DEFUN([LC_READLINK_SSIZE_T],
 446 [AC_MSG_CHECKING([if readlink returns ssize_t])
 447 AC_TRY_COMPILE([
 448         #include <unistd.h>
 449 ],[
 450         ssize_t readlink(const char *, char *, size_t);
 451 ],[
 452         AC_MSG_RESULT([yes])
 453         AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
 454 ],[
 455         AC_MSG_RESULT([no])
 456 ])
 457 ])
 458
 459 AC_DEFUN([LC_FUNC_PAGE_MAPPED],
 460 [AC_MSG_CHECKING([if kernel offers page_mapped])
 461 LB_LINUX_TRY_COMPILE([
 462         #include <linux/mm.h>
 463 ],[
 464         page_mapped(NULL);
 465 ],[
 466         AC_MSG_RESULT([yes])
 467         AC_DEFINE(HAVE_PAGE_MAPPED, 1, [page_mapped found])
 468 ],[
 469         AC_MSG_RESULT([no])
 470 ])
 471 ])
 472
 473 AC_DEFUN([LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL],
 474 [AC_MSG_CHECKING([if struct file_operations has an unlocked_ioctl field])
 475 LB_LINUX_TRY_COMPILE([
 476         #include <linux/fs.h>
 477 ],[
 478         struct file_operations fops;
 479         &fops.unlocked_ioctl;
 480 ],[
 481         AC_MSG_RESULT([yes])
 482         AC_DEFINE(HAVE_UNLOCKED_IOCTL, 1, [struct file_operations has an unlock ed_ioctl field])
 483 ],[
 484         AC_MSG_RESULT([no])
 485 ])
 486 ])
 487
 488 AC_DEFUN([LC_FILEMAP_POPULATE],
 489 [AC_MSG_CHECKING([for exported filemap_populate])
 490 LB_LINUX_TRY_COMPILE([
 491         #include <asm/page.h>
 492         #include <linux/mm.h>
 493 ],[
 494        filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
 495 ],[
 496         AC_MSG_RESULT([yes])
 497         AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
 498 ],[
 499         AC_MSG_RESULT([no])
 500 ])
 501 ])
 502
 503 AC_DEFUN([LC_D_ADD_UNIQUE],
 504 [AC_MSG_CHECKING([for d_add_unique])
 505 LB_LINUX_TRY_COMPILE([
 506         #include <linux/dcache.h>
 507 ],[
 508        d_add_unique(NULL, NULL);
 509 ],[
 510         AC_MSG_RESULT([yes])
 511         AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
 512 ],[
 513         AC_MSG_RESULT([no])
 514 ])
 515 ])
 516
 517 AC_DEFUN([LC_BIT_SPINLOCK_H],
 518 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
 519         AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
 520         LB_LINUX_TRY_COMPILE([
 521                 #include <asm/processor.h>
 522                 #include <linux/spinlock.h>
 523                 #include <linux/bit_spinlock.h>
 524         ],[],[
 525                 AC_MSG_RESULT([yes])
 526                 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
 527         ],[
 528                 AC_MSG_RESULT([no])
 529         ])
 530 ],
 531 [])
 532 ])
 533
 534 #
 535 # LC_POSIX_ACL_XATTR
 536 #
 537 # If we have xattr_acl.h
 538 #
 539 AC_DEFUN([LC_XATTR_ACL],
 540 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
 541         AC_MSG_CHECKING([if xattr_acl.h can be compiled])
 542         LB_LINUX_TRY_COMPILE([
 543                 #include <linux/xattr_acl.h>
 544         ],[],[
 545                 AC_MSG_RESULT([yes])
 546                 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
 547         ],[
 548                 AC_MSG_RESULT([no])
 549         ])
 550 ],
 551 [])
 552 ])
 553
 554 AC_DEFUN([LC_STRUCT_INTENT_FILE],
 555 [AC_MSG_CHECKING([if struct open_intent has a file field])
 556 LB_LINUX_TRY_COMPILE([
 557         #include <linux/fs.h>
 558         #include <linux/namei.h>
 559 ],[
 560         struct open_intent intent;
 561         &intent.file;
 562 ],[
 563         AC_MSG_RESULT([yes])
 564         AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
 565 ],[
 566         AC_MSG_RESULT([no])
 567 ])
 568 ])
 569
 570
 571 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
 572 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
 573         AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
 574         LB_LINUX_TRY_COMPILE([
 575                 #include <linux/posix_acl_xattr.h>
 576         ],[],[
 577                 AC_MSG_RESULT([yes])
 578                 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
 579
 580         ],[
 581                 AC_MSG_RESULT([no])
 582         ])
 583 $1
 584 ],[
 585 AC_MSG_RESULT([no])
 586 ])
 587 ])
 588
 589 #
 590 # LC_EXPORT___IGET
 591 # starting from 2.6.19 linux kernel exports __iget()
 592 #
 593 AC_DEFUN([LC_EXPORT___IGET],
 594 [LB_CHECK_SYMBOL_EXPORT([__iget],
 595 [fs/inode.c],[
 596         AC_DEFINE(HAVE_EXPORT___IGET, 1, [kernel exports __iget])
 597 ],[
 598 ])
 599 ])
 600
 601 #
 602 # LC_EXPORT_NR_FREE_BUFFER_PAGES
 603 # starting from 2.6.23 linux kernel exports nr_free_buffer_pages()
 604 #
 605 AC_DEFUN([LC_EXPORT_NR_FREE_BUFFER_PAGES],
 606 [LB_CHECK_SYMBOL_EXPORT([nr_free_buffer_pages],
 607 [mm/page_alloc.c],[
 608         AC_DEFINE(HAVE_EXPORT_NR_FREE_BUFFER_PAGES, 1, [kernel exports nr_free_buffer_pages])
 609 ],[
 610         if test x$enable_server = xyes ; then
 611                 AC_MSG_ERROR([lustre server needs this symbol to be exported.])
 612         fi
 613 ])
 614 ])
 615
 616
 617 AC_DEFUN([LC_LUSTRE_VERSION_H],
 618 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 619         rm -f "$LUSTRE/include/linux/lustre_version.h"
 620 ],[
 621         touch "$LUSTRE/include/linux/lustre_version.h"
 622         if test x$enable_server = xyes ; then
 623                 AC_MSG_WARN([Unpatched kernel detected.])
 624                 AC_MSG_WARN([Lustre servers cannot be built with an unpatched kernel;])
 625                 AC_MSG_WARN([disabling server build])
 626                 enable_server='no'
 627         fi
 628 ])
 629 ])
 630
 631 AC_DEFUN([LC_FUNC_SET_FS_PWD],
 632 [LB_CHECK_SYMBOL_EXPORT([set_fs_pwd],
 633 [fs/namespace.c],[
 634         AC_DEFINE(HAVE_SET_FS_PWD, 1, [set_fs_pwd is exported])
 635 ],[
 636 ])
 637 ])
 638
 639 #
 640 # LC_CAPA_CRYPTO
 641 #
 642 AC_DEFUN([LC_CAPA_CRYPTO],
 643 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
 644         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
 645 ])
 646 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
 647         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
 648 ])
 649 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
 650         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
 651 ])
 652 ])
 653
 654 AC_DEFUN([LC_SUNRPC_CACHE],
 655 [AC_MSG_CHECKING([if sunrpc struct cache_head uses kref])
 656 LB_LINUX_TRY_COMPILE([
 657         #include <linux/sunrpc/cache.h>
 658 ],[
 659         struct cache_head ch;
 660         &ch.ref.refcount;
 661 ],[
 662         AC_MSG_RESULT([yes])
 663         AC_DEFINE(HAVE_SUNRPC_CACHE_V2, 1, [sunrpc cache facility v2])
 664 ],[
 665         AC_MSG_RESULT([no])
 666 ])
 667 ])
 668
 669 AC_DEFUN([LC_CONFIG_SUNRPC],
 670 [LB_LINUX_CONFIG_IM([SUNRPC],[],
 671                     [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
 672  LC_SUNRPC_CACHE
 673 ])
 674
 675 #
 676 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
 677 #
 678 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
 679 [AC_MSG_CHECKING([whether to enable gss keyring backend])
 680  AC_ARG_ENABLE([gss_keyring],
 681                [AC_HELP_STRING([--disable-gss-keyring],
 682                                [disable gss keyring backend])],
 683                [],[enable_gss_keyring='yes'])
 684  AC_MSG_RESULT([$enable_gss_keyring])
 685
 686  if test x$enable_gss_keyring != xno; then
 687         LB_LINUX_CONFIG_IM([KEYS],[],
 688                            [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
 689
 690         AC_CHECK_LIB([keyutils], [keyctl_search], [],
 691                      [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
 692
 693         AC_DEFINE([HAVE_GSS_KEYRING], [1],
 694                   [Define this if you enable gss keyring backend])
 695  fi
 696 ])
 697
 698 m4_pattern_allow(AC_KERBEROS_V5)
 699
 700 #
 701 # LC_CONFIG_GSS (default disabled)
 702 #
 703 # Build gss and related tools of Lustre. Currently both kernel and user space
 704 # parts are depend on linux platform.
 705 #
 706 AC_DEFUN([LC_CONFIG_GSS],
 707 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
 708  AC_ARG_ENABLE([gss],
 709                [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
 710                [],[enable_gss='no'])
 711  AC_MSG_RESULT([$enable_gss])
 712
 713  if test x$enable_gss == xyes; then
 714         LC_CONFIG_GSS_KEYRING
 715         LC_CONFIG_SUNRPC
 716
 717         LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
 718                            [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 719         LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
 720                            [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
 721         LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
 722                            [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
 723         LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
 724                            [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
 725         LB_LINUX_CONFIG_IM([CRYPTO_WP512],[],
 726                            [AC_MSG_WARN([kernel WP512 support is recommended by using GSS.])])
 727         LB_LINUX_CONFIG_IM([CRYPTO_ARC4],[],
 728                            [AC_MSG_WARN([kernel ARC4 support is recommended by using GSS.])])
 729         LB_LINUX_CONFIG_IM([CRYPTO_DES],[],
 730                            [AC_MSG_WARN([kernel DES support is recommended by using GSS.])])
 731         LB_LINUX_CONFIG_IM([CRYPTO_TWOFISH],[],
 732                            [AC_MSG_WARN([kernel TWOFISH support is recommended by using GSS.])])
 733         LB_LINUX_CONFIG_IM([CRYPTO_CAST6],[],
 734                            [AC_MSG_WARN([kernel CAST6 support is recommended by using GSS.])])
 735         dnl FIXME
 736         dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
 737         dnl FIXME
 738         LB_LINUX_CONFIG_IM([CRYPTO_AES],[],
 739                            [AC_MSG_WARN([kernel AES support is recommended by using GSS.])])
 740
 741         AC_CHECK_LIB([gssapi], [gss_init_sec_context],
 742                      [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
 743                      [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
 744                                    [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
 745                                    [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
 746
 747         AC_SUBST(GSSAPI_LIBS)
 748
 749         AC_KERBEROS_V5
 750  fi
 751 ])
 752
 753 # LC_FUNC_MS_FLOCK_LOCK
 754 #
 755 # SLES9 kernel has MS_FLOCK_LOCK sb flag
 756 #
 757 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
 758 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
 759 LB_LINUX_TRY_COMPILE([
 760         #include <linux/fs.h>
 761 ],[
 762         int flags = MS_FLOCK_LOCK;
 763 ],[
 764         AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
 765                 [kernel has MS_FLOCK_LOCK flag])
 766         AC_MSG_RESULT([yes])
 767 ],[
 768         AC_MSG_RESULT([no])
 769 ])
 770 ])
 771
 772 #
 773 # LC_FUNC_HAVE_CAN_SLEEP_ARG
 774 #
 775 # SLES9 kernel has third arg can_sleep
 776 # in fs/locks.c: flock_lock_file_wait()
 777 #
 778 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
 779 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 780 LB_LINUX_TRY_COMPILE([
 781         #include <linux/fs.h>
 782 ],[
 783         int cansleep;
 784         struct file *file;
 785         struct file_lock *file_lock;
 786         flock_lock_file_wait(file, file_lock, cansleep);
 787 ],[
 788         AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
 789                 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 790         AC_MSG_RESULT([yes])
 791 ],[
 792         AC_MSG_RESULT([no])
 793 ])
 794 ])
 795
 796 #
 797 # LC_FUNC_F_OP_FLOCK
 798 #
 799 # rhel4.2 kernel has f_op->flock field
 800 #
 801 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 802 [AC_MSG_CHECKING([if struct file_operations has flock field])
 803 LB_LINUX_TRY_COMPILE([
 804         #include <linux/fs.h>
 805 ],[
 806         struct file_operations ll_file_operations_flock;
 807         ll_file_operations_flock.flock = NULL;
 808 ],[
 809         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 810                 [struct file_operations has flock field])
 811         AC_MSG_RESULT([yes])
 812 ],[
 813         AC_MSG_RESULT([no])
 814 ])
 815 ])
 816
 817 #
 818 # LC_TASK_PPTR
 819 #
 820 # task struct has p_pptr instead of parent
 821 #
 822 AC_DEFUN([LC_TASK_PPTR],
 823 [AC_MSG_CHECKING([task p_pptr found])
 824 LB_LINUX_TRY_COMPILE([
 825         #include <linux/sched.h>
 826 ],[
 827         struct task_struct *p;
 828
 829         p = p->p_pptr;
 830 ],[
 831         AC_MSG_RESULT([yes])
 832         AC_DEFINE(HAVE_TASK_PPTR, 1, [task p_pptr found])
 833 ],[
 834         AC_MSG_RESULT([no])
 835 ])
 836 ])
 837
 838 #
 839 # LC_FUNC_F_OP_FLOCK
 840 #
 841 # rhel4.2 kernel has f_op->flock field
 842 #
 843 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 844 [AC_MSG_CHECKING([if struct file_operations has flock field])
 845 LB_LINUX_TRY_COMPILE([
 846         #include <linux/fs.h>
 847 ],[
 848         struct file_operations ll_file_operations_flock;
 849         ll_file_operations_flock.flock = NULL;
 850 ],[
 851         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 852                 [struct file_operations has flock field])
 853         AC_MSG_RESULT([yes])
 854 ],[
 855         AC_MSG_RESULT([no])
 856 ])
 857 ])
 858
 859 # LC_INODE_I_MUTEX
 860 # after 2.6.15 inode have i_mutex intead of i_sem
 861 AC_DEFUN([LC_INODE_I_MUTEX],
 862 [AC_MSG_CHECKING([use inode have i_mutex ])
 863 LB_LINUX_TRY_COMPILE([
 864         #include <linux/mutex.h>
 865         #include <linux/fs.h>
 866         #undef i_mutex
 867 ],[
 868         struct inode i;
 869
 870         mutex_unlock(&i.i_mutex);
 871 ],[
 872         AC_MSG_RESULT(yes)
 873         AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
 874                 [after 2.6.15 inode have i_mutex intead of i_sem])
 875 ],[
 876         AC_MSG_RESULT(NO)
 877 ])
 878 ])
 879
 880 # LC_DQUOTOFF_MUTEX
 881 # after 2.6.17 dquote use mutex instead if semaphore
 882 AC_DEFUN([LC_DQUOTOFF_MUTEX],
 883 [AC_MSG_CHECKING([use dqonoff_mutex])
 884 LB_LINUX_TRY_COMPILE([
 885         #include <linux/mutex.h>
 886         #include <linux/fs.h>
 887         #include <linux/quota.h>
 888 ],[
 889         struct quota_info dq;
 890
 891         mutex_unlock(&dq.dqonoff_mutex);
 892 ],[
 893         AC_MSG_RESULT(yes)
 894         AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
 895                 [after 2.6.17 dquote use mutex instead if semaphore])
 896 ],[
 897         AC_MSG_RESULT(NO)
 898 ])
 899 ])
 900
 901 #
 902 # LC_STATFS_DENTRY_PARAM
 903 # starting from 2.6.18 linux kernel uses dentry instead of
 904 # super_block for first vfs_statfs argument
 905 #
 906 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
 907 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
 908 LB_LINUX_TRY_COMPILE([
 909         #include <linux/fs.h>
 910 ],[
 911         int vfs_statfs(struct dentry *, struct kstatfs *);
 912 ],[
 913         AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
 914                 [first parameter of vfs_statfs is dentry])
 915         AC_MSG_RESULT([yes])
 916 ],[
 917         AC_MSG_RESULT([no])
 918 ])
 919 ])
 920
 921 #
 922 # LC_VFS_KERN_MOUNT
 923 # starting from 2.6.18 kernel don't export do_kern_mount
 924 # and want to use vfs_kern_mount instead.
 925 #
 926 AC_DEFUN([LC_VFS_KERN_MOUNT],
 927 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
 928 LB_LINUX_TRY_COMPILE([
 929         #include <linux/mount.h>
 930 ],[
 931         vfs_kern_mount(NULL, 0, NULL, NULL);
 932 ],[
 933         AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
 934                 [vfs_kern_mount exist in kernel])
 935         AC_MSG_RESULT([yes])
 936 ],[
 937         AC_MSG_RESULT([no])
 938 ])
 939 ])
 940
 941 #
 942 # LC_INVALIDATEPAGE_RETURN_INT
 943 # more 2.6 api changes.  return type for the invalidatepage
 944 # address_space_operation is 'void' in new kernels but 'int' in old
 945 #
 946 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
 947 [AC_MSG_CHECKING([invalidatepage has return int])
 948 LB_LINUX_TRY_COMPILE([
 949         #include <linux/buffer_head.h>
 950 ],[
 951         int rc = block_invalidatepage(NULL, 0);
 952 ],[
 953         AC_MSG_RESULT(yes)
 954         AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
 955                 [Define if return type of invalidatepage should be int])
 956 ],[
 957         AC_MSG_RESULT(NO)
 958 ])
 959 ])
 960
 961 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
 962 # more 2.6 API changes. 2.6.18 umount_begin has different parameters
 963 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
 964 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
 965 tmp_flags="$EXTRA_KCFLAGS"
 966 EXTRA_KCFLAGS="-Werror"
 967 LB_LINUX_TRY_COMPILE([
 968         #include <linux/fs.h>
 969
 970         struct vfsmount;
 971         static void cfg_umount_begin (struct vfsmount *v, int flags)
 972         {
 973                 ;
 974         }
 975
 976         static struct super_operations cfg_super_operations = {
 977                 .umount_begin   = cfg_umount_begin,
 978         };
 979 ],[
 980         cfg_super_operations.umount_begin(NULL,0);
 981 ],[
 982         AC_MSG_RESULT(yes)
 983         AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
 984                 [Define umount_begin need second argument])
 985 ],[
 986         AC_MSG_RESULT(NO)
 987 ])
 988 EXTRA_KCFLAGS="$tmp_flags"
 989 ])
 990
 991 # 2.6.19 API changes
 992 # inode don't have i_blksize field
 993 AC_DEFUN([LC_INODE_BLKSIZE],
 994 [AC_MSG_CHECKING([inode has i_blksize field])
 995 LB_LINUX_TRY_COMPILE([
 996 #include <linux/fs.h>
 997 ],[
 998         struct inode i;
 999         i.i_blksize = 0;
1000 ],[
1001         AC_MSG_RESULT(yes)
1002         AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
1003                 [struct inode has i_blksize field])
1004 ],[
1005         AC_MSG_RESULT(NO)
1006 ])
1007 ])
1008
1009 # LC_VFS_READDIR_U64_INO
1010 # 2.6.19 use u64 for inode number instead of inode_t
1011 AC_DEFUN([LC_VFS_READDIR_U64_INO],
1012 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
1013 tmp_flags="$EXTRA_KCFLAGS"
1014 EXTRA_KCFLAGS="-Werror"
1015 LB_LINUX_TRY_COMPILE([
1016 #include <linux/fs.h>
1017         int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
1018                       u64 ino, unsigned int d_type)
1019         {
1020                 return 0;
1021         }
1022 ],[
1023         filldir_t filter;
1024
1025         filter = fillonedir;
1026         return 1;
1027 ],[
1028         AC_MSG_RESULT(yes)
1029         AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
1030                 [if vfs_readdir need 64bit inode number])
1031 ],[
1032         AC_MSG_RESULT(NO)
1033 ])
1034 EXTRA_KCFLAGS="$tmp_flags"
1035 ])
1036
1037 # LC_GENERIC_FILE_WRITE
1038 # 2.6.19 introduce do_sync_write instead of
1039 # generic_file_write
1040 AC_DEFUN([LC_GENERIC_FILE_WRITE],
1041 [AC_MSG_CHECKING([use generic_file_write])
1042 LB_LINUX_TRY_COMPILE([
1043         #include <linux/fs.h>
1044 ],[
1045         int result = generic_file_read(NULL, NULL, 0, 0);
1046 ],[
1047         AC_MSG_RESULT(yes)
1048         AC_DEFINE(HAVE_GENERIC_FILE_WRITE, 1,
1049                 [use generic_file_write])
1050 ],[
1051         AC_MSG_RESULT(NO)
1052 ])
1053 ])
1054
1055 # LC_GENERIC_FILE_READ
1056 # 2.6.19 need to use do_sync_read instead of
1057 # generic_file_read
1058 AC_DEFUN([LC_GENERIC_FILE_READ],
1059 [AC_MSG_CHECKING([use generic_file_read])
1060 LB_LINUX_TRY_COMPILE([
1061         #include <linux/fs.h>
1062 ],[
1063         int result = generic_file_read(NULL, NULL, 0, 0);
1064 ],[
1065         AC_MSG_RESULT(yes)
1066         AC_DEFINE(HAVE_GENERIC_FILE_READ, 1,
1067                 [use generic_file_read])
1068 ],[
1069         AC_MSG_RESULT(NO)
1070 ])
1071 ])
1072
1073 # LC_NR_PAGECACHE
1074 # 2.6.18 don't export nr_pagecahe
1075 AC_DEFUN([LC_NR_PAGECACHE],
1076 [AC_MSG_CHECKING([kernel export nr_pagecache])
1077 LB_LINUX_TRY_COMPILE([
1078         #include <linux/pagemap.h>
1079 ],[
1080         return atomic_read(&nr_pagecache);
1081 ],[
1082         AC_MSG_RESULT(yes)
1083         AC_DEFINE(HAVE_NR_PAGECACHE, 1,
1084                 [is kernel export nr_pagecache])
1085 ],[
1086         AC_MSG_RESULT(NO)
1087 ])
1088 ])
1089
1090 # LC_CANCEL_DIRTY_PAGE
1091 # 2.6.20 introduse cancel_dirty_page instead of
1092 # clear_page_dirty.
1093 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
1094 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
1095 LB_LINUX_TRY_COMPILE([
1096         #include <linux/page-flags.h>
1097 ],[
1098         cancel_dirty_page(NULL, 0);
1099 ],[
1100         AC_MSG_RESULT(yes)
1101         AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1102                   [kernel has cancel_dirty_page instead of clear_page_dirty])
1103 ],[
1104         AC_MSG_RESULT(NO)
1105 ])
1106 ])
1107
1108 #
1109 # LC_PAGE_CONSTANT
1110 #
1111 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
1112 # it support constant page, which means the page won't be modified during the
1113 # IO.
1114 #
1115 AC_DEFUN([LC_PAGE_CONSTANT],
1116 [AC_MSG_CHECKING([if kernel have PageConstant defined])
1117 LB_LINUX_TRY_COMPILE([
1118         #include <linux/page-flags.h>
1119 ],[
1120         #ifndef PG_constant
1121         #error "Have no raid5 zcopy patch"
1122         #endif
1123 ],[
1124         AC_MSG_RESULT(yes)
1125         AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
1126 ],[
1127         AC_MSG_RESULT(no);
1128 ])
1129 ])
1130
1131 # RHEL5 in FS-cache patch rename PG_checked flag
1132 # into PG_fs_misc
1133 AC_DEFUN([LC_PG_FS_MISC],
1134 [AC_MSG_CHECKING([kernel has PG_fs_misc])
1135 LB_LINUX_TRY_COMPILE([
1136         #include <linux/page-flags.h>
1137 ],[
1138         #ifndef PG_fs_misc
1139         #error PG_fs_misc not defined in kernel
1140         #endif
1141 ],[
1142         AC_MSG_RESULT(yes)
1143         AC_DEFINE(HAVE_PG_FS_MISC, 1,
1144                   [is kernel have PG_fs_misc])
1145 ],[
1146         AC_MSG_RESULT(NO)
1147 ])
1148 ])
1149
1150 # RHEL5 PageChecked and SetPageChecked defined
1151 AC_DEFUN([LC_PAGE_CHECKED],
1152 [AC_MSG_CHECKING([kernel has PageChecked and SetPageChecked])
1153 LB_LINUX_TRY_COMPILE([
1154         #include <linux/page-flags.h>
1155 ],[
1156         #ifndef PageChecked
1157         #error PageChecked not defined in kernel
1158         #endif
1159         #ifndef SetPageChecked
1160         #error SetPageChecked not defined in kernel
1161         #endif
1162 ],[
1163         AC_MSG_RESULT(yes)
1164         AC_DEFINE(HAVE_PAGE_CHECKED, 1,
1165                   [does kernel have PageChecked and SetPageChecked])
1166 ],[
1167         AC_MSG_RESULT(NO)
1168 ])
1169 ])
1170
1171 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
1172 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
1173 [mm/truncate.c],[
1174 AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
1175             [kernel export truncate_complete_page])
1176 ],[
1177 ])
1178 ])
1179
1180 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
1181 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
1182 [fs/dcache.c],[
1183 AC_DEFINE(HAVE_D_REHASH_COND, 1,
1184             [d_rehash_cond is exported by the kernel])
1185 ],[
1186 ])
1187 ])
1188
1189 AC_DEFUN([LC_EXPORT___D_REHASH],
1190 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
1191 [fs/dcache.c],[
1192 AC_DEFINE(HAVE___D_REHASH, 1,
1193             [__d_rehash is exported by the kernel])
1194 ],[
1195 ])
1196 ])
1197
1198 AC_DEFUN([LC_EXPORT_D_MOVE_LOCKED],
1199 [LB_CHECK_SYMBOL_EXPORT([d_move_locked],
1200 [fs/dcache.c],[
1201 AC_DEFINE(HAVE_D_MOVE_LOCKED, 1,
1202             [d_move_locked is exported by the kernel])
1203 ],[
1204 ])
1205 ])
1206
1207 AC_DEFUN([LC_EXPORT___D_MOVE],
1208 [LB_CHECK_SYMBOL_EXPORT([__d_move],
1209 [fs/dcache.c],[
1210 AC_DEFINE(HAVE___D_MOVE, 1,
1211             [__d_move is exported by the kernel])
1212 ],[
1213 ])
1214 ])
1215
1216 # The actual symbol exported varies among architectures, so we need
1217 # to check many symbols (but only in the current architecture.)  No
1218 # matter what symbol is exported, the kernel #defines node_to_cpumask
1219 # to the appropriate function and that's what we use.
1220 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
1221          [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
1222                                  [arch/$LINUX_ARCH/mm/numa.c],
1223                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1224                                             [node_to_cpumask is exported by
1225                                              the kernel])]) # x86_64
1226           LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
1227                                  [arch/$LINUX_ARCH/kernel/smpboot.c],
1228                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1229                                             [node_to_cpumask is exported by
1230                                              the kernel])]) # ia64
1231           LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
1232                                  [arch/$LINUX_ARCH/kernel/smpboot.c],
1233                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1234                                             [node_to_cpumask is exported by
1235                                              the kernel])]) # i386
1236           ])
1237
1238 # 2.6.22 lost second parameter for invalidate_bdev
1239 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
1240 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
1241 LB_LINUX_TRY_COMPILE([
1242         #include <linux/buffer_head.h>
1243 ],[
1244         invalidate_bdev(NULL,0);
1245 ],[
1246         AC_MSG_RESULT([yes])
1247         AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
1248                 [invalidate_bdev has second argument])
1249 ],[
1250         AC_MSG_RESULT([no])
1251 ])
1252 ])
1253
1254 # 2.6.23 have return type 'void' for unregister_blkdev
1255 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
1256 [AC_MSG_CHECKING([if unregister_blkdev return int])
1257 LB_LINUX_TRY_COMPILE([
1258         #include <linux/fs.h>
1259 ],[
1260         int i = unregister_blkdev(0,NULL);
1261 ],[
1262         AC_MSG_RESULT([yes])
1263         AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
1264                 [unregister_blkdev return int])
1265 ],[
1266         AC_MSG_RESULT([no])
1267 ])
1268 ])
1269
1270 # 2.6.23 change .sendfile to .splice_read
1271 AC_DEFUN([LC_KERNEL_SPLICE_READ],
1272 [AC_MSG_CHECKING([if kernel has .splice_read])
1273 LB_LINUX_TRY_COMPILE([
1274         #include <linux/fs.h>
1275 ],[
1276         struct file_operations file;
1277
1278         file.splice_read = NULL;
1279 ], [
1280         AC_MSG_RESULT([yes])
1281         AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
1282                 [kernel has .slice_read])
1283 ],[
1284         AC_MSG_RESULT([no])
1285 ])
1286 ])
1287
1288 # 2.6.23 extract nfs export related data into exportfs.h
1289 AC_DEFUN([LC_HAVE_EXPORTFS_H],
1290 [
1291 tmpfl="$CFLAGS"
1292 CFLAGS="$CFLAGS -I$LINUX_OBJ/include"
1293 AC_CHECK_HEADERS([linux/exportfs.h])
1294 CFLAGS="$tmpfl"
1295 ])
1296
1297 #
1298 # LC_VFS_INTENT_PATCHES
1299 #
1300 # check if the kernel has the VFS intent patches
1301 AC_DEFUN([LC_VFS_INTENT_PATCHES],
1302 [AC_MSG_CHECKING([if the kernel has the VFS intent patches])
1303 LB_LINUX_TRY_COMPILE([
1304         #include <linux/fs.h>
1305         #include <linux/namei.h>
1306 ],[
1307         struct nameidata nd;
1308         struct lookup_intent *it;
1309
1310         it = &nd.intent;
1311         intent_init(it, IT_OPEN);
1312         it->d.lustre.it_disposition = 0;
1313         it->d.lustre.it_data = NULL;
1314 ],[
1315         AC_MSG_RESULT([yes])
1316         AC_DEFINE(HAVE_VFS_INTENT_PATCHES, 1, [VFS intent patches are applied])
1317 ],[
1318         AC_MSG_RESULT([no])
1319 ])
1320 ])
1321
1322 AC_DEFUN([LC_S_TIME_GRAN],
1323 [AC_MSG_CHECKING([if super block has s_time_gran member])
1324 LB_LINUX_TRY_COMPILE([
1325         #include <linux/fs.h>
1326 ],[
1327         struct super_block sb;
1328
1329         return sb.s_time_gran;
1330 ],[
1331         AC_MSG_RESULT([yes])
1332         AC_DEFINE(HAVE_S_TIME_GRAN, 1, [super block has s_time_gran member])
1333 ],[
1334         AC_MSG_RESULT([no])
1335 ])
1336 ])
1337
1338 AC_DEFUN([LC_SB_TIME_GRAN],
1339 [AC_MSG_CHECKING([if kernel has old get_sb_time_gran])
1340 LB_LINUX_TRY_COMPILE([
1341         #include <linux/fs.h>
1342 ],[
1343         return get_sb_time_gran(NULL);
1344 ],[
1345         AC_MSG_RESULT([yes])
1346         AC_DEFINE(HAVE_SB_TIME_GRAN, 1, [kernel has old get_sb_time_gran])
1347 ],[
1348         AC_MSG_RESULT([no])
1349 ])
1350 ])
1351
1352
1353 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
1354 AC_DEFUN([LC_RW_TREE_LOCK],
1355 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
1356 tmp_flags="$EXTRA_KCFLAGS"
1357 EXTRA_KCFLAGS="-Werror"
1358 LB_LINUX_TRY_COMPILE([
1359         #include <linux/fs.h>
1360 ],[
1361         struct address_space a;
1362
1363         write_lock(&a.tree_lock);
1364 ],[
1365         AC_MSG_RESULT([yes])
1366         AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
1367 ],[
1368         AC_MSG_RESULT([no])
1369 ])
1370 EXTRA_KCFLAGS="$tmp_flags"
1371 ])
1372
1373 AC_DEFUN([LC_CONST_ACL_SIZE],
1374 [AC_MSG_CHECKING([calc acl size])
1375 tmp_flags="$CFLAGS"
1376 CFLAGS="$CFLAGS -I $LINUX_OBJ/include $EXTRA_KCFLAGS"
1377 AC_TRY_RUN([
1378 #define __KERNEL__
1379 #include <linux/autoconf.h>
1380 #include <linux/types.h>
1381 #undef __KERNEL__
1382 // block include
1383 #define __LINUX_POSIX_ACL_H
1384
1385 # ifdef CONFIG_FS_POSIX_ACL
1386 #  ifdef HAVE_XATTR_ACL
1387 #   include <linux/xattr_acl.h>
1388 #  endif
1389 #  ifdef HAVE_LINUX_POSIX_ACL_XATTR_H
1390 #   include <linux/posix_acl_xattr.h>
1391 #  endif
1392 # endif
1393
1394 #include <linux/lustre_acl.h>
1395
1396 #include <stdio.h>
1397
1398 int main(void)
1399 {
1400     int size = mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES);
1401     FILE *f = fopen("acl.size","w+");
1402     fprintf(f,"%d", size);
1403     fclose(f);
1404
1405     return 0;
1406 }
1407
1408 ],[
1409         acl_size=`cat acl.size`
1410         AC_MSG_RESULT([ACL size $acl_size])
1411         AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
1412 ],[
1413         AC_ERROR([ACL size can't computed])
1414 ])
1415 CFLAGS="$tmp_flags"
1416 ])
1417
1418 #
1419 # check for crypto API
1420 #
1421 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
1422 [AC_MSG_CHECKING([if kernel has block cipher support])
1423 LB_LINUX_TRY_COMPILE([
1424         #include <linux/crypto.h>
1425 ],[
1426         int v = CRYPTO_ALG_TYPE_BLKCIPHER;
1427 ],[
1428         AC_MSG_RESULT([yes])
1429         AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
1430 ],[
1431         AC_MSG_RESULT([no])
1432 ])
1433 ])
1434
1435
1436 #
1437 # LC_PROG_LINUX
1438 #
1439 # Lustre linux kernel checks
1440 #
1441 AC_DEFUN([LC_PROG_LINUX],
1442          [LC_LUSTRE_VERSION_H
1443          if test x$enable_server = xyes ; then
1444              AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
1445              LC_CONFIG_BACKINGFS
1446          fi
1447          LC_CONFIG_PINGER
1448          LC_CONFIG_CHECKSUM
1449          LC_CONFIG_LIBLUSTRE_RECOVERY
1450          LC_CONFIG_QUOTA
1451          LC_CONFIG_HEALTH_CHECK_WRITE
1452          LC_CONFIG_LRU_RESIZE
1453
1454          LC_TASK_PPTR
1455          # RHEL4 patches
1456          LC_EXPORT_TRUNCATE_COMPLETE
1457          LC_EXPORT_D_REHASH_COND
1458          LC_EXPORT___D_REHASH
1459          LC_EXPORT_D_MOVE_LOCKED
1460          LC_EXPORT___D_MOVE
1461          LC_EXPORT_NODE_TO_CPUMASK
1462
1463          LC_STRUCT_KIOBUF
1464          LC_FUNC_COND_RESCHED
1465          LC_FUNC_ZAP_PAGE_RANGE
1466          LC_FUNC_PDE
1467          LC_FUNC_DIRECT_IO
1468          LC_HEADER_MM_INLINE
1469          LC_STRUCT_INODE
1470          LC_FUNC_REGISTER_CACHE
1471          LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1472          LC_FUNC_DEV_SET_RDONLY
1473          LC_FUNC_FILEMAP_FDATAWRITE
1474          LC_STRUCT_STATFS
1475          LC_FUNC_PAGE_MAPPED
1476          LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL
1477          LC_FILEMAP_POPULATE
1478          LC_D_ADD_UNIQUE
1479          LC_BIT_SPINLOCK_H
1480
1481          LC_XATTR_ACL
1482          LC_POSIX_ACL_XATTR_H
1483          LC_CONST_ACL_SIZE
1484
1485          LC_STRUCT_INTENT_FILE
1486
1487          LC_FUNC_SET_FS_PWD
1488          LC_CAPA_CRYPTO
1489          LC_CONFIG_GSS
1490          LC_FUNC_MS_FLOCK_LOCK
1491          LC_FUNC_HAVE_CAN_SLEEP_ARG
1492          LC_FUNC_F_OP_FLOCK
1493          LC_QUOTA_READ
1494          LC_COOKIE_FOLLOW_LINK
1495          LC_FUNC_RCU
1496
1497          # does the kernel have VFS intent patches?
1498          LC_VFS_INTENT_PATCHES
1499
1500          # ~2.6.11
1501          LC_S_TIME_GRAN
1502          LC_SB_TIME_GRAN
1503
1504          # 2.6.12
1505          LC_RW_TREE_LOCK
1506
1507          # 2.6.15
1508          LC_INODE_I_MUTEX
1509
1510          # 2.6.17
1511          LC_DQUOTOFF_MUTEX
1512
1513          # 2.6.18
1514          LC_NR_PAGECACHE
1515          LC_STATFS_DENTRY_PARAM
1516          LC_VFS_KERN_MOUNT
1517          LC_INVALIDATEPAGE_RETURN_INT
1518          LC_UMOUNTBEGIN_HAS_VFSMOUNT
1519
1520          #2.6.18 + RHEL5 (fc6)
1521          LC_PG_FS_MISC
1522          LC_PAGE_CHECKED
1523
1524          # 2.6.19
1525          LC_INODE_BLKSIZE
1526          LC_VFS_READDIR_U64_INO
1527          LC_GENERIC_FILE_READ
1528          LC_GENERIC_FILE_WRITE
1529
1530          # 2.6.20
1531          LC_CANCEL_DIRTY_PAGE
1532
1533          # raid5-zerocopy patch
1534          LC_PAGE_CONSTANT
1535
1536          # 2.6.22
1537          LC_INVALIDATE_BDEV_2ARG
1538          LC_ASYNC_BLOCK_CIPHER
1539          # 2.6.23
1540          LC_UNREGISTER_BLKDEV_RETURN_INT
1541          LC_KERNEL_SPLICE_READ
1542          LC_HAVE_EXPORTFS_H
1543          LC_EXPORT_NR_FREE_BUFFER_PAGES
1544 ])
1545
1546 #
1547 # LC_CONFIG_CLIENT_SERVER
1548 #
1549 # Build client/server sides of Lustre
1550 #
1551 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1552 [AC_MSG_CHECKING([whether to build Lustre server support])
1553 AC_ARG_ENABLE([server],
1554         AC_HELP_STRING([--disable-server],
1555                         [disable Lustre server support]),
1556         [],[enable_server='yes'])
1557 AC_MSG_RESULT([$enable_server])
1558
1559 AC_MSG_CHECKING([whether to build Lustre client support])
1560 AC_ARG_ENABLE([client],
1561         AC_HELP_STRING([--disable-client],
1562                         [disable Lustre client support]),
1563         [],[enable_client='yes'])
1564 AC_MSG_RESULT([$enable_client])])
1565
1566 #
1567 # LC_CONFIG_LIBLUSTRE
1568 #
1569 # whether to build liblustre
1570 #
1571 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1572 [AC_MSG_CHECKING([whether to build Lustre library])
1573 AC_ARG_ENABLE([liblustre],
1574         AC_HELP_STRING([--disable-liblustre],
1575                         [disable building of Lustre library]),
1576         [],[enable_liblustre=$with_sysio])
1577 AC_MSG_RESULT([$enable_liblustre])
1578 # only build sysio if liblustre is built
1579 with_sysio="$enable_liblustre"
1580
1581 AC_MSG_CHECKING([whether to build liblustre tests])
1582 AC_ARG_ENABLE([liblustre-tests],
1583         AC_HELP_STRING([--enable-liblustre-tests],
1584                         [enable liblustre tests, if --disable-tests is used]),
1585         [],[enable_liblustre_tests=$enable_tests])
1586 if test x$enable_liblustre != xyes ; then
1587    enable_liblustre_tests='no'
1588 fi
1589 AC_MSG_RESULT([$enable_liblustre_tests])
1590
1591 AC_MSG_CHECKING([whether to enable liblustre acl])
1592 AC_ARG_ENABLE([liblustre-acl],
1593         AC_HELP_STRING([--disable-liblustre-acl],
1594                         [disable ACL support for liblustre]),
1595         [],[enable_liblustre_acl=yes])
1596 if test x$enable_liblustre != xyes ; then
1597    enable_liblustre_acl='no'
1598 fi
1599 AC_MSG_RESULT([$enable_liblustre_acl])
1600 if test x$enable_liblustre_acl != xno ; then
1601   AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1602 fi
1603
1604 AC_MSG_CHECKING([whether to build mpitests])
1605 AC_ARG_ENABLE([mpitests],
1606         AC_HELP_STRING([--enable-mpitests],
1607                         [build liblustre mpi tests]),
1608         [],[enable_mpitests=no])
1609 AC_MSG_RESULT([$enable_mpitests])
1610
1611 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1612 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1613
1614 LC_CONFIG_PINGER
1615 LC_CONFIG_LIBLUSTRE_RECOVERY
1616 ])
1617
1618 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
1619 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
1620 AC_ARG_ENABLE([lru_resize],
1621         AC_HELP_STRING([--enable-lru-resize],
1622                         [enable lru resize support]),
1623         [],[enable_lru_resize='yes'])
1624 AC_MSG_RESULT([$enable_lru_resize])
1625 if test x$enable_lru_resize != xno; then
1626    AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
1627 fi
1628 ])
1629
1630 #
1631 # LC_CONFIG_QUOTA
1632 #
1633 # whether to enable quota support
1634 #
1635 AC_DEFUN([LC_CONFIG_QUOTA],
1636 [AC_MSG_CHECKING([whether to disable quota support])
1637 AC_ARG_ENABLE([quota],
1638         AC_HELP_STRING([--disable-quota],
1639                         [disable quota support]),
1640         [],[enable_quota='yes'])
1641 AC_MSG_RESULT([$enable_quota])
1642 if test x$linux25 != xyes; then
1643    enable_quota='no'
1644 fi
1645 if test x$enable_quota != xno; then
1646    AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
1647 fi
1648 ])
1649
1650 #
1651 # LC_CONFIG_SPLIT
1652 #
1653 # whether to enable split support
1654 #
1655 AC_DEFUN([LC_CONFIG_SPLIT],
1656 [AC_MSG_CHECKING([whether to enable split support])
1657 AC_ARG_ENABLE([split],
1658         AC_HELP_STRING([--enable-split],
1659                         [enable split support]),
1660         [],[enable_split='no'])
1661 AC_MSG_RESULT([$enable_split])
1662 if test x$enable_split != xno; then
1663    AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1664 fi
1665 ])
1666
1667 AC_DEFUN([LC_QUOTA_READ],
1668 [AC_MSG_CHECKING([if kernel supports quota_read])
1669 LB_LINUX_TRY_COMPILE([
1670         #include <linux/fs.h>
1671 ],[
1672         struct super_operations sp;
1673         void *i = (void *)sp.quota_read;
1674 ],[
1675         AC_MSG_RESULT([yes])
1676         AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
1677 ],[
1678         AC_MSG_RESULT([no])
1679 ])
1680 ])
1681
1682 #
1683 # LC_COOKIE_FOLLOW_LINK
1684 #
1685 # kernel 2.6.13+ ->follow_link returns a cookie
1686 #
1687
1688 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
1689 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
1690 LB_LINUX_TRY_COMPILE([
1691         #include <linux/fs.h>
1692         #include <linux/namei.h>
1693 ],[
1694         struct dentry dentry;
1695         struct nameidata nd;
1696
1697         dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
1698 ],[
1699         AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
1700         AC_MSG_RESULT([yes])
1701 ],[
1702         AC_MSG_RESULT([no])
1703 ])
1704 ])
1705
1706 #
1707 # LC_FUNC_RCU
1708 #
1709 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
1710 # call_rcu takes three parameters.
1711 #
1712 AC_DEFUN([LC_FUNC_RCU],
1713 [AC_MSG_CHECKING([if kernel have RCU supported])
1714 LB_LINUX_TRY_COMPILE([
1715         #include <linux/rcupdate.h>
1716 ],[],[
1717         AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
1718         AC_MSG_RESULT([yes])
1719
1720         AC_MSG_CHECKING([if call_rcu takes three parameters])
1721         LB_LINUX_TRY_COMPILE([
1722                 #include <linux/rcupdate.h>
1723         ],[
1724                 struct rcu_head rh;
1725                 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
1726         ],[
1727                 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
1728                 AC_MSG_RESULT([yes])
1729         ],[
1730                 AC_MSG_RESULT([no])
1731         ])
1732 ],[
1733         AC_MSG_RESULT([no])
1734 ])
1735 ])
1736
1737 #
1738 # LC_CONFIGURE
1739 #
1740 # other configure checks
1741 #
1742 AC_DEFUN([LC_CONFIGURE],
1743 [LC_CONFIG_OBD_BUFFER_SIZE
1744
1745 # include/liblustre.h
1746 AC_CHECK_HEADERS([asm/page.h sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1747
1748 # include/lustre/lustre_user.h
1749 # See note there re: __ASM_X86_64_PROCESSOR_H
1750 AC_CHECK_HEADERS([linux/fs.h linux/quota.h])
1751
1752 # liblustre/llite_lib.h
1753 AC_CHECK_HEADERS([xtio.h file.h])
1754
1755 # liblustre/dir.c
1756 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1757
1758 # liblustre/lutil.c
1759 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1760 AC_CHECK_FUNCS([inet_ntoa])
1761
1762 # libsysio/src/readlink.c
1763 LC_READLINK_SSIZE_T
1764
1765 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
1766 AC_CHECK_HEADERS([linux/random.h], [], [],
1767                  [#ifdef HAVE_LINUX_TYPES_H
1768                   # include <linux/types.h>
1769                   #endif
1770                  ])
1771
1772 # utils/llverfs.c
1773 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1774
1775 # check for -lz support
1776 ZLIB=""
1777 AC_CHECK_LIB([z],
1778              [adler32],
1779              [AC_CHECK_HEADERS([zlib.h],
1780                                [ZLIB="-lz"
1781                                 AC_DEFINE([HAVE_ADLER], 1,
1782                                           [support alder32 checksum type])],
1783                                [AC_MSG_WARN([No zlib-devel package found,
1784                                              unable to use adler32 checksum])])],
1785              [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
1786 )
1787 AC_SUBST(ZLIB)
1788
1789 # Super safe df
1790 AC_ARG_ENABLE([mindf],
1791       AC_HELP_STRING([--enable-mindf],
1792                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1793       [],[])
1794 if test "$enable_mindf" = "yes" ;  then
1795       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1796 fi
1797
1798 AC_ARG_ENABLE([fail_alloc],
1799         AC_HELP_STRING([--disable-fail-alloc],
1800                 [disable randomly alloc failure]),
1801         [],[enable_fail_alloc=yes])
1802 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1803 AC_MSG_RESULT([$enable_fail_alloc])
1804 if test x$enable_fail_alloc != xno ; then
1805         AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1806 fi
1807
1808 ])
1809
1810 #
1811 # LC_CONDITIONALS
1812 #
1813 # AM_CONDITIONALS for lustre
1814 #
1815 AC_DEFUN([LC_CONDITIONALS],
1816 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1817 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
1818 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1819 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1820 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1821 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1822 AM_CONDITIONAL(QUOTA, test x$enable_quota = xyes)
1823 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
1824 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1825 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1826 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
1827 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
1828 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
1829 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1830 ])
1831
1832 #
1833 # LC_CONFIG_FILES
1834 #
1835 # files that should be generated with AC_OUTPUT
1836 #
1837 AC_DEFUN([LC_CONFIG_FILES],
1838 [AC_CONFIG_FILES([
1839 lustre/Makefile
1840 lustre/autoMakefile
1841 lustre/autoconf/Makefile
1842 lustre/contrib/Makefile
1843 lustre/doc/Makefile
1844 lustre/include/Makefile
1845 lustre/include/lustre_ver.h
1846 lustre/include/linux/Makefile
1847 lustre/include/lustre/Makefile
1848 lustre/kernel_patches/targets/2.6-vanilla.target
1849 lustre/kernel_patches/targets/2.6-rhel4.target
1850 lustre/kernel_patches/targets/2.6-rhel5.target
1851 lustre/kernel_patches/targets/2.6-fc5.target
1852 lustre/kernel_patches/targets/2.6-patchless.target
1853 lustre/kernel_patches/targets/2.6-sles10.target
1854 lustre/ldlm/Makefile
1855 lustre/fid/Makefile
1856 lustre/fid/autoMakefile
1857 lustre/liblustre/Makefile
1858 lustre/liblustre/tests/Makefile
1859 lustre/llite/Makefile
1860 lustre/llite/autoMakefile
1861 lustre/lov/Makefile
1862 lustre/lov/autoMakefile
1863 lustre/lvfs/Makefile
1864 lustre/lvfs/autoMakefile
1865 lustre/mdc/Makefile
1866 lustre/mdc/autoMakefile
1867 lustre/lmv/Makefile
1868 lustre/lmv/autoMakefile
1869 lustre/mds/Makefile
1870 lustre/mds/autoMakefile
1871 lustre/mdt/Makefile
1872 lustre/mdt/autoMakefile
1873 lustre/cmm/Makefile
1874 lustre/cmm/autoMakefile
1875 lustre/mdd/Makefile
1876 lustre/mdd/autoMakefile
1877 lustre/fld/Makefile
1878 lustre/fld/autoMakefile
1879 lustre/obdclass/Makefile
1880 lustre/obdclass/autoMakefile
1881 lustre/obdclass/linux/Makefile
1882 lustre/obdecho/Makefile
1883 lustre/obdecho/autoMakefile
1884 lustre/obdfilter/Makefile
1885 lustre/obdfilter/autoMakefile
1886 lustre/osc/Makefile
1887 lustre/osc/autoMakefile
1888 lustre/ost/Makefile
1889 lustre/ost/autoMakefile
1890 lustre/osd/Makefile
1891 lustre/osd/autoMakefile
1892 lustre/mgc/Makefile
1893 lustre/mgc/autoMakefile
1894 lustre/mgs/Makefile
1895 lustre/mgs/autoMakefile
1896 lustre/ptlrpc/Makefile
1897 lustre/ptlrpc/autoMakefile
1898 lustre/ptlrpc/gss/Makefile
1899 lustre/ptlrpc/gss/autoMakefile
1900 lustre/quota/Makefile
1901 lustre/quota/autoMakefile
1902 lustre/scripts/Makefile
1903 lustre/scripts/version_tag.pl
1904 lustre/tests/Makefile
1905 lustre/utils/Makefile
1906 lustre/utils/gss/Makefile
1907 ])
1908 case $lb_target_os in
1909         darwin)
1910                 AC_CONFIG_FILES([ lustre/obdclass/darwin/Makefile ])
1911                 ;;
1912 esac
1913
1914 ])