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 libcfs_is_module=yes
  11 ])
  12
  13 #
  14 # LC_PATH_DEFAULTS
  15 #
  16 # lustre specific paths
  17 #
  18 AC_DEFUN([LC_PATH_DEFAULTS],
  19 [# ptlrpc kernel build requires this
  20 LUSTRE="$PWD/lustre"
  21 AC_SUBST(LUSTRE)
  22
  23 # mount.lustre
  24 rootsbindir='/sbin'
  25 AC_SUBST(rootsbindir)
  26
  27 demodir='$(docdir)/demo'
  28 AC_SUBST(demodir)
  29
  30 pkgexampledir='${pkgdatadir}/examples'
  31 AC_SUBST(pkgexampledir)
  32 ])
  33
  34 #
  35 # LC_TARGET_SUPPORTED
  36 #
  37 # is the target os supported?
  38 #
  39 AC_DEFUN([LC_TARGET_SUPPORTED],
  40 [case $target_os in
  41         linux* | darwin*)
  42 $1
  43                 ;;
  44         *)
  45 $2
  46                 ;;
  47 esac
  48 ])
  49
  50 #
  51 # LC_CONFIG_EXT3
  52 #
  53 # that ext3 is enabled in the kernel
  54 #
  55 AC_DEFUN([LC_CONFIG_EXT3],
  56 [LB_LINUX_CONFIG([EXT3_FS],[],[
  57         LB_LINUX_CONFIG([EXT3_FS_MODULE],[],[$2])
  58 ])
  59 LB_LINUX_CONFIG([EXT3_FS_XATTR],[$1],[$3])
  60 ])
  61
  62 #
  63 # LC_FSHOOKS
  64 #
  65 # If we have (and can build) fshooks.h
  66 #
  67 AC_DEFUN([LC_FSHOOKS],
  68 [LB_CHECK_FILE([$LINUX/include/linux/fshooks.h],[
  69         AC_MSG_CHECKING([if fshooks.h can be compiled])
  70         LB_LINUX_TRY_COMPILE([
  71                 #include <linux/fshooks.h>
  72         ],[],[
  73                 AC_MSG_RESULT([yes])
  74         ],[
  75                 AC_MSG_RESULT([no])
  76                 AC_MSG_WARN([You might have better luck with gcc 3.3.x.])
  77                 AC_MSG_WARN([You can set CC=gcc33 before running configure.])
  78                 AC_MSG_ERROR([Your compiler cannot build fshooks.h.])
  79         ])
  80 $1
  81 ],[
  82 $2
  83 ])
  84 ])
  85
  86 #
  87 # LC_STRUCT_KIOBUF
  88 #
  89 # rh 2.4.18 has iobuf->dovary, but other kernels do not
  90 #
  91 AC_DEFUN([LC_STRUCT_KIOBUF],
  92 [AC_MSG_CHECKING([if struct kiobuf has a dovary field])
  93 LB_LINUX_TRY_COMPILE([
  94         #include <linux/iobuf.h>
  95 ],[
  96         struct kiobuf iobuf;
  97         iobuf.dovary = 1;
  98 ],[
  99         AC_MSG_RESULT([yes])
 100         AC_DEFINE(HAVE_KIOBUF_DOVARY, 1, [struct kiobuf has a dovary field])
 101 ],[
 102         AC_MSG_RESULT([no])
 103 ])
 104 ])
 105
 106 #
 107 # LC_FUNC_COND_RESCHED
 108 #
 109 # cond_resched() was introduced in 2.4.20
 110 #
 111 AC_DEFUN([LC_FUNC_COND_RESCHED],
 112 [AC_MSG_CHECKING([if kernel offers cond_resched])
 113 LB_LINUX_TRY_COMPILE([
 114         #include <linux/sched.h>
 115 ],[
 116         cond_resched();
 117 ],[
 118         AC_MSG_RESULT([yes])
 119         AC_DEFINE(HAVE_COND_RESCHED, 1, [cond_resched found])
 120 ],[
 121         AC_MSG_RESULT([no])
 122 ])
 123 ])
 124
 125 #
 126 # LC_FUNC_ZAP_PAGE_RANGE
 127 #
 128 # if zap_page_range() takes a vma arg
 129 #
 130 AC_DEFUN([LC_FUNC_ZAP_PAGE_RANGE],
 131 [AC_MSG_CHECKING([if zap_page_range with vma parameter])
 132 ZAP_PAGE_RANGE_VMA="`grep -c 'zap_page_range.*struct vm_area_struct' $LINUX/include/linux/mm.h`"
 133 if test "$ZAP_PAGE_RANGE_VMA" != 0 ; then
 134         AC_DEFINE(ZAP_PAGE_RANGE_VMA, 1, [zap_page_range with vma parameter])
 135         AC_MSG_RESULT([yes])
 136 else
 137         AC_MSG_RESULT([no])
 138 fi
 139 ])
 140
 141 #
 142 # LC_FUNC_PDE
 143 #
 144 # if proc_fs.h defines PDE()
 145 #
 146 AC_DEFUN([LC_FUNC_PDE],
 147 [AC_MSG_CHECKING([if kernel defines PDE])
 148 HAVE_PDE="`grep -c 'proc_dir_entry..PDE' $LINUX/include/linux/proc_fs.h`"
 149 if test "$HAVE_PDE" != 0 ; then
 150         AC_DEFINE(HAVE_PDE, 1, [the kernel defines PDE])
 151         AC_MSG_RESULT([yes])
 152 else
 153         AC_MSG_RESULT([no])
 154 fi
 155 ])
 156
 157 #
 158 # LC_FUNC_FILEMAP_FDATASYNC
 159 #
 160 # if filemap_fdatasync() exists
 161 #
 162 AC_DEFUN([LC_FUNC_FILEMAP_FDATAWRITE],
 163 [AC_MSG_CHECKING([whether filemap_fdatawrite() is defined])
 164 LB_LINUX_TRY_COMPILE([
 165         #include <linux/fs.h>
 166 ],[
 167         int (*foo)(struct address_space *)= filemap_fdatawrite;
 168 ],[
 169         AC_MSG_RESULT([yes])
 170         AC_DEFINE(HAVE_FILEMAP_FDATAWRITE, 1, [filemap_fdatawrite() found])
 171 ],[
 172         AC_MSG_RESULT([no])
 173 ])
 174 ])
 175
 176 #
 177 # LC_FUNC_DIRECT_IO
 178 #
 179 # if direct_IO takes a struct file argument
 180 #
 181 AC_DEFUN([LC_FUNC_DIRECT_IO],
 182 [AC_MSG_CHECKING([if kernel passes struct file to direct_IO])
 183 HAVE_DIO_FILE="`grep -c 'direct_IO.*struct file' $LINUX/include/linux/fs.h`"
 184 if test "$HAVE_DIO_FILE" != 0 ; then
 185         AC_DEFINE(HAVE_DIO_FILE, 1, [the kernel passes struct file to direct_IO])
 186         AC_MSG_RESULT(yes)
 187 else
 188         AC_MSG_RESULT(no)
 189 fi
 190 ])
 191
 192 #
 193 # LC_HEADER_MM_INLINE
 194 #
 195 # RHEL kernels define page_count in mm_inline.h
 196 #
 197 AC_DEFUN([LC_HEADER_MM_INLINE],
 198 [AC_MSG_CHECKING([if kernel has mm_inline.h header])
 199 LB_LINUX_TRY_COMPILE([
 200         #include <linux/mm_inline.h>
 201 ],[
 202         #ifndef page_count
 203         #error mm_inline.h does not define page_count
 204         #endif
 205 ],[
 206         AC_MSG_RESULT([yes])
 207         AC_DEFINE(HAVE_MM_INLINE, 1, [mm_inline found])
 208 ],[
 209         AC_MSG_RESULT([no])
 210 ])
 211 ])
 212
 213 #
 214 # LC_STRUCT_INODE
 215 #
 216 # if inode->i_alloc_sem exists
 217 #
 218 AC_DEFUN([LC_STRUCT_INODE],
 219 [AC_MSG_CHECKING([if struct inode has i_alloc_sem])
 220 LB_LINUX_TRY_COMPILE([
 221         #include <linux/fs.h>
 222         #include <linux/version.h>
 223 ],[
 224         #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,24))
 225         #error "down_read_trylock broken before 2.4.24"
 226         #endif
 227         struct inode i;
 228         return (char *)&i.i_alloc_sem - (char *)&i;
 229 ],[
 230         AC_MSG_RESULT([yes])
 231         AC_DEFINE(HAVE_I_ALLOC_SEM, 1, [struct inode has i_alloc_sem])
 232 ],[
 233         AC_MSG_RESULT([no])
 234 ])
 235 ])
 236
 237 #
 238 # LC_FUNC_REGISTER_CACHE
 239 #
 240 # if register_cache() is defined by kernel
 241 #
 242 AC_DEFUN([LC_FUNC_REGISTER_CACHE],
 243 [AC_MSG_CHECKING([if kernel defines register_cache()])
 244 LB_LINUX_TRY_COMPILE([
 245         #include <linux/list.h>
 246         #include <linux/cache_def.h>
 247 ],[
 248         struct cache_definition cache;
 249 ],[
 250         AC_MSG_RESULT([yes])
 251         AC_DEFINE(HAVE_REGISTER_CACHE, 1, [register_cache found])
 252         AC_MSG_CHECKING([if kernel expects return from cache shrink function])
 253         HAVE_CACHE_RETURN_INT="`grep -c 'int.*shrink' $LINUX/include/linux/cache_def.h`"
 254         if test "$HAVE_CACHE_RETURN_INT" != 0 ; then
 255                 AC_DEFINE(HAVE_CACHE_RETURN_INT, 1, [kernel expects return from shrink_cache])
 256                 AC_MSG_RESULT(yes)
 257         else
 258                 AC_MSG_RESULT(no)
 259         fi
 260 ],[
 261         AC_MSG_RESULT([no])
 262 ])
 263 ])
 264
 265 #
 266 # LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
 267 #
 268 # check for our patched grab_cache_page_nowait_gfp() function
 269 #
 270 AC_DEFUN([LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP],
 271 [AC_MSG_CHECKING([if kernel defines grab_cache_page_nowait_gfp()])
 272 HAVE_GCPN_GFP="`grep -c 'grab_cache_page_nowait_gfp' $LINUX/include/linux/pagemap.h`"
 273 if test "$HAVE_GCPN_GFP" != 0 ; then
 274         AC_DEFINE(HAVE_GRAB_CACHE_PAGE_NOWAIT_GFP, 1,
 275                 [kernel has grab_cache_page_nowait_gfp()])
 276         AC_MSG_RESULT(yes)
 277 else
 278         AC_MSG_RESULT(no)
 279 fi
 280 ])
 281
 282 #
 283 # LC_FUNC_DEV_SET_RDONLY
 284 #
 285 # check for the old-style dev_set_rdonly which took an extra "devno" param
 286 # and can only set a single device to discard writes at one time
 287 #
 288 AC_DEFUN([LC_FUNC_DEV_SET_RDONLY],
 289 [AC_MSG_CHECKING([if kernel has new dev_set_rdonly])
 290 LB_LINUX_TRY_COMPILE([
 291         #include <linux/fs.h>
 292 ],[
 293         #ifndef HAVE_CLEAR_RDONLY_ON_PUT
 294         #error needs to be patched by lustre kernel patches from Lustre version 1.4.3 or above.
 295         #endif
 296 ],[
 297         AC_MSG_RESULT([yes])
 298         AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly])
 299 ],[
 300         AC_MSG_RESULT([no, Linux kernel source needs to be patches by lustre
 301 kernel patches from Lustre version 1.4.3 or above.])
 302 ])
 303 ])
 304
 305 #
 306 # LC_CONFIG_BACKINGFS
 307 #
 308 # setup, check the backing filesystem
 309 #
 310 AC_DEFUN([LC_CONFIG_BACKINGFS],
 311 [
 312 BACKINGFS="ldiskfs"
 313
 314 if test x$with_ldiskfs = xno ; then
 315         BACKINGFS="ext3"
 316
 317         if test x$linux25$enable_server = xyesyes ; then
 318                 AC_MSG_ERROR([ldiskfs is required for 2.6-based servers.])
 319         fi
 320
 321         # --- Check that ext3 and ext3 xattr are enabled in the kernel
 322         LC_CONFIG_EXT3([],[
 323                 AC_MSG_ERROR([Lustre requires that ext3 is enabled in the kernel])
 324         ],[
 325                 AC_MSG_WARN([Lustre requires that extended attributes for ext3 are enabled in the kernel])
 326                 AC_MSG_WARN([This build may fail.])
 327         ])
 328 else
 329         # ldiskfs is enabled
 330         LB_DEFINE_LDISKFS_OPTIONS
 331 fi #ldiskfs
 332
 333 AC_MSG_CHECKING([which backing filesystem to use])
 334 AC_MSG_RESULT([$BACKINGFS])
 335 AC_SUBST(BACKINGFS)
 336 ])
 337
 338 #
 339 # LC_CONFIG_PINGER
 340 #
 341 # the pinger is temporary, until we have the recovery node in place
 342 #
 343 AC_DEFUN([LC_CONFIG_PINGER],
 344 [AC_MSG_CHECKING([whether to enable pinger support])
 345 AC_ARG_ENABLE([pinger],
 346         AC_HELP_STRING([--disable-pinger],
 347                         [disable recovery pinger support]),
 348         [],[enable_pinger='yes'])
 349 AC_MSG_RESULT([$enable_pinger])
 350 if test x$enable_pinger != xno ; then
 351   AC_DEFINE(ENABLE_PINGER, 1, Use the Pinger)
 352 fi
 353 ])
 354
 355 #
 356 # LC_CONFIG_CHECKSUM
 357 #
 358 # do checksum of bulk data between client and OST
 359 #
 360 AC_DEFUN([LC_CONFIG_CHECKSUM],
 361 [AC_MSG_CHECKING([whether to enable data checksum support])
 362 AC_ARG_ENABLE([checksum],
 363        AC_HELP_STRING([--disable-checksum],
 364                        [disable data checksum support]),
 365        [],[enable_checksum='yes'])
 366 AC_MSG_RESULT([$enable_checksum])
 367 if test x$enable_checksum != xno ; then
 368   AC_DEFINE(ENABLE_CHECKSUM, 1, do data checksums)
 369 fi
 370 ])
 371
 372 #
 373 # LC_CONFIG_HEALTH_CHECK_WRITE
 374 #
 375 # Turn off the actual write to the disk
 376 #
 377 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
 378 [AC_MSG_CHECKING([whether to enable a write with the health check])
 379 AC_ARG_ENABLE([health_write],
 380         AC_HELP_STRING([--enable-health_write],
 381                         [enable disk writes when doing health check]),
 382         [],[enable_health_write='no'])
 383 AC_MSG_RESULT([$enable_health_write])
 384 if test x$enable_health_write != xno ; then
 385   AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
 386 fi
 387 ])
 388
 389 #
 390 # LC_CONFIG_LIBLUSTRE_RECOVERY
 391 #
 392 AC_DEFUN([LC_CONFIG_LIBLUSTRE_RECOVERY],
 393 [AC_MSG_CHECKING([whether to enable liblustre recovery support])
 394 AC_ARG_ENABLE([liblustre-recovery],
 395         AC_HELP_STRING([--disable-liblustre-recovery],
 396                         [disable liblustre recovery support]),
 397         [],[enable_liblustre_recovery='yes'])
 398 AC_MSG_RESULT([$enable_liblustre_recovery])
 399 if test x$enable_liblustre_recovery != xno ; then
 400   AC_DEFINE(ENABLE_LIBLUSTRE_RECOVERY, 1, Liblustre Can Recover)
 401 fi
 402 ])
 403
 404 #
 405 # LC_CONFIG_OBD_BUFFER_SIZE
 406 #
 407 # the maximum buffer size of lctl ioctls
 408 #
 409 AC_DEFUN([LC_CONFIG_OBD_BUFFER_SIZE],
 410 [AC_MSG_CHECKING([maximum OBD ioctl size])
 411 AC_ARG_WITH([obd-buffer-size],
 412         AC_HELP_STRING([--with-obd-buffer-size=[size]],
 413                         [set lctl ioctl maximum bytes (default=8192)]),
 414         [
 415                 OBD_BUFFER_SIZE=$with_obd_buffer_size
 416         ],[
 417                 OBD_BUFFER_SIZE=8192
 418         ])
 419 AC_MSG_RESULT([$OBD_BUFFER_SIZE bytes])
 420 AC_DEFINE_UNQUOTED(OBD_MAX_IOCTL_BUFFER, $OBD_BUFFER_SIZE, [IOCTL Buffer Size])
 421 ])
 422
 423 #
 424 # LC_STRUCT_STATFS
 425 #
 426 # AIX does not have statfs.f_namelen
 427 #
 428 AC_DEFUN([LC_STRUCT_STATFS],
 429 [AC_MSG_CHECKING([if struct statfs has a f_namelen field])
 430 LB_LINUX_TRY_COMPILE([
 431         #include <linux/vfs.h>
 432 ],[
 433         struct statfs sfs;
 434         sfs.f_namelen = 1;
 435 ],[
 436         AC_MSG_RESULT([yes])
 437         AC_DEFINE(HAVE_STATFS_NAMELEN, 1, [struct statfs has a namelen field])
 438 ],[
 439         AC_MSG_RESULT([no])
 440 ])
 441 ])
 442
 443 #
 444 # LC_READLINK_SSIZE_T
 445 #
 446 AC_DEFUN([LC_READLINK_SSIZE_T],
 447 [AC_MSG_CHECKING([if readlink returns ssize_t])
 448 AC_TRY_COMPILE([
 449         #include <unistd.h>
 450 ],[
 451         ssize_t readlink(const char *, char *, size_t);
 452 ],[
 453         AC_MSG_RESULT([yes])
 454         AC_DEFINE(HAVE_POSIX_1003_READLINK, 1, [readlink returns ssize_t])
 455 ],[
 456         AC_MSG_RESULT([no])
 457 ])
 458 ])
 459
 460 AC_DEFUN([LC_FUNC_PAGE_MAPPED],
 461 [AC_MSG_CHECKING([if kernel offers page_mapped])
 462 LB_LINUX_TRY_COMPILE([
 463         #include <linux/mm.h>
 464 ],[
 465         page_mapped(NULL);
 466 ],[
 467         AC_MSG_RESULT([yes])
 468         AC_DEFINE(HAVE_PAGE_MAPPED, 1, [page_mapped found])
 469 ],[
 470         AC_MSG_RESULT([no])
 471 ])
 472 ])
 473
 474 AC_DEFUN([LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL],
 475 [AC_MSG_CHECKING([if struct file_operations has an unlocked_ioctl field])
 476 LB_LINUX_TRY_COMPILE([
 477         #include <linux/fs.h>
 478 ],[
 479         struct file_operations fops;
 480         &fops.unlocked_ioctl;
 481 ],[
 482         AC_MSG_RESULT([yes])
 483         AC_DEFINE(HAVE_UNLOCKED_IOCTL, 1, [struct file_operations has an unlock ed_ioctl field])
 484 ],[
 485         AC_MSG_RESULT([no])
 486 ])
 487 ])
 488
 489 AC_DEFUN([LC_FILEMAP_POPULATE],
 490 [AC_MSG_CHECKING([for exported filemap_populate])
 491 LB_LINUX_TRY_COMPILE([
 492         #include <asm/page.h>
 493         #include <linux/mm.h>
 494 ],[
 495        filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
 496 ],[
 497         AC_MSG_RESULT([yes])
 498         AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
 499 ],[
 500         AC_MSG_RESULT([no])
 501 ])
 502 ])
 503
 504 AC_DEFUN([LC_D_ADD_UNIQUE],
 505 [AC_MSG_CHECKING([for d_add_unique])
 506 LB_LINUX_TRY_COMPILE([
 507         #include <linux/dcache.h>
 508 ],[
 509        d_add_unique(NULL, NULL);
 510 ],[
 511         AC_MSG_RESULT([yes])
 512         AC_DEFINE(HAVE_D_ADD_UNIQUE, 1, [Kernel has d_add_unique])
 513 ],[
 514         AC_MSG_RESULT([no])
 515 ])
 516 ])
 517
 518 AC_DEFUN([LC_BIT_SPINLOCK_H],
 519 [LB_CHECK_FILE([$LINUX/include/linux/bit_spinlock.h],[
 520         AC_MSG_CHECKING([if bit_spinlock.h can be compiled])
 521         LB_LINUX_TRY_COMPILE([
 522                 #include <asm/processor.h>
 523                 #include <linux/spinlock.h>
 524                 #include <linux/bit_spinlock.h>
 525         ],[],[
 526                 AC_MSG_RESULT([yes])
 527                 AC_DEFINE(HAVE_BIT_SPINLOCK_H, 1, [Kernel has bit_spinlock.h])
 528         ],[
 529                 AC_MSG_RESULT([no])
 530         ])
 531 ],
 532 [])
 533 ])
 534
 535 #
 536 # LC_POSIX_ACL_XATTR
 537 #
 538 # If we have xattr_acl.h
 539 #
 540 AC_DEFUN([LC_XATTR_ACL],
 541 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
 542         AC_MSG_CHECKING([if xattr_acl.h can be compiled])
 543         LB_LINUX_TRY_COMPILE([
 544                 #include <linux/xattr_acl.h>
 545         ],[],[
 546                 AC_MSG_RESULT([yes])
 547                 AC_DEFINE(HAVE_XATTR_ACL, 1, [Kernel has xattr_acl])
 548         ],[
 549                 AC_MSG_RESULT([no])
 550         ])
 551 ],
 552 [])
 553 ])
 554
 555 AC_DEFUN([LC_STRUCT_INTENT_FILE],
 556 [AC_MSG_CHECKING([if struct open_intent has a file field])
 557 LB_LINUX_TRY_COMPILE([
 558         #include <linux/fs.h>
 559         #include <linux/namei.h>
 560 ],[
 561         struct open_intent intent;
 562         &intent.file;
 563 ],[
 564         AC_MSG_RESULT([yes])
 565         AC_DEFINE(HAVE_FILE_IN_STRUCT_INTENT, 1, [struct open_intent has a file field])
 566 ],[
 567         AC_MSG_RESULT([no])
 568 ])
 569 ])
 570
 571
 572 AC_DEFUN([LC_POSIX_ACL_XATTR_H],
 573 [LB_CHECK_FILE([$LINUX/include/linux/posix_acl_xattr.h],[
 574         AC_MSG_CHECKING([if linux/posix_acl_xattr.h can be compiled])
 575         LB_LINUX_TRY_COMPILE([
 576                 #include <linux/posix_acl_xattr.h>
 577         ],[],[
 578                 AC_MSG_RESULT([yes])
 579                 AC_DEFINE(HAVE_LINUX_POSIX_ACL_XATTR_H, 1, [linux/posix_acl_xattr.h found])
 580
 581         ],[
 582                 AC_MSG_RESULT([no])
 583         ])
 584 $1
 585 ],[
 586 AC_MSG_RESULT([no])
 587 ])
 588 ])
 589
 590 #
 591 # LC_EXPORT___IGET
 592 # starting from 2.6.19 linux kernel exports __iget()
 593 #
 594 AC_DEFUN([LC_EXPORT___IGET],
 595 [LB_CHECK_SYMBOL_EXPORT([__iget],
 596 [fs/inode.c],[
 597         AC_DEFINE(HAVE_EXPORT___IGET, 1, [kernel exports __iget])
 598 ],[
 599 ])
 600 ])
 601
 602 #
 603 # LC_EXPORT_NR_FREE_BUFFER_PAGES
 604 # starting from 2.6.23 linux kernel exports nr_free_buffer_pages()
 605 #
 606 AC_DEFUN([LC_EXPORT_NR_FREE_BUFFER_PAGES],
 607 [LB_CHECK_SYMBOL_EXPORT([nr_free_buffer_pages],
 608 [mm/page_alloc.c],[
 609         AC_DEFINE(HAVE_EXPORT_NR_FREE_BUFFER_PAGES, 1, [kernel exports nr_free_buffer_pages])
 610 ],[
 611         if test x$enable_server = xyes ; then
 612                 AC_MSG_ERROR([lustre server needs this symbol to be exported.])
 613         fi
 614 ])
 615 ])
 616
 617
 618 AC_DEFUN([LC_LUSTRE_VERSION_H],
 619 [LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
 620         rm -f "$LUSTRE/include/linux/lustre_version.h"
 621 ],[
 622         touch "$LUSTRE/include/linux/lustre_version.h"
 623         if test x$enable_server = xyes ; then
 624                 AC_MSG_WARN([Unpatched kernel detected.])
 625                 AC_MSG_WARN([Lustre servers cannot be built with an unpatched kernel;])
 626                 AC_MSG_WARN([disabling server build])
 627                 enable_server='no'
 628         fi
 629 ])
 630 ])
 631
 632 AC_DEFUN([LC_FUNC_SET_FS_PWD],
 633 [LB_CHECK_SYMBOL_EXPORT([set_fs_pwd],
 634 [fs/namespace.c],[
 635         AC_DEFINE(HAVE_SET_FS_PWD, 1, [set_fs_pwd is exported])
 636 ],[
 637 ])
 638 ])
 639
 640 #
 641 # LC_CAPA_CRYPTO
 642 #
 643 AC_DEFUN([LC_CAPA_CRYPTO],
 644 [LB_LINUX_CONFIG_IM([CRYPTO],[],[
 645         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO is enabled in your kernel.])
 646 ])
 647 LB_LINUX_CONFIG_IM([CRYPTO_HMAC],[],[
 648         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_HMAC is enabled in your kernel.])
 649 ])
 650 LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
 651         AC_MSG_ERROR([Lustre capability require that CONFIG_CRYPTO_SHA1 is enabled in your kernel.])
 652 ])
 653 ])
 654
 655 AC_DEFUN([LC_SUNRPC_CACHE],
 656 [AC_MSG_CHECKING([if sunrpc struct cache_head uses kref])
 657 LB_LINUX_TRY_COMPILE([
 658         #include <linux/sunrpc/cache.h>
 659 ],[
 660         struct cache_head ch;
 661         &ch.ref.refcount;
 662 ],[
 663         AC_MSG_RESULT([yes])
 664         AC_DEFINE(HAVE_SUNRPC_CACHE_V2, 1, [sunrpc cache facility v2])
 665 ],[
 666         AC_MSG_RESULT([no])
 667 ])
 668 ])
 669
 670 AC_DEFUN([LC_CONFIG_SUNRPC],
 671 [LB_LINUX_CONFIG_IM([SUNRPC],[],
 672                     [AC_MSG_ERROR([kernel SUNRPC support is required by using GSS.])])
 673  LC_SUNRPC_CACHE
 674 ])
 675
 676 #
 677 # LC_CONFIG_GSS_KEYRING (default enabled, if gss is enabled)
 678 #
 679 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
 680 [AC_MSG_CHECKING([whether to enable gss keyring backend])
 681  AC_ARG_ENABLE([gss_keyring],
 682                [AC_HELP_STRING([--disable-gss-keyring],
 683                                [disable gss keyring backend])],
 684                [],[enable_gss_keyring='yes'])
 685  AC_MSG_RESULT([$enable_gss_keyring])
 686
 687  if test x$enable_gss_keyring != xno; then
 688         LB_LINUX_CONFIG_IM([KEYS],[],
 689                            [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
 690
 691         AC_CHECK_LIB([keyutils], [keyctl_search], [],
 692                      [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
 693
 694         AC_DEFINE([HAVE_GSS_KEYRING], [1],
 695                   [Define this if you enable gss keyring backend])
 696  fi
 697 ])
 698
 699 m4_pattern_allow(AC_KERBEROS_V5)
 700
 701 #
 702 # LC_CONFIG_GSS (default disabled)
 703 #
 704 # Build gss and related tools of Lustre. Currently both kernel and user space
 705 # parts are depend on linux platform.
 706 #
 707 AC_DEFUN([LC_CONFIG_GSS],
 708 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
 709  AC_ARG_ENABLE([gss],
 710                [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
 711                [],[enable_gss='no'])
 712  AC_MSG_RESULT([$enable_gss])
 713
 714  if test x$enable_gss == xyes; then
 715         LC_CONFIG_GSS_KEYRING
 716         LC_CONFIG_SUNRPC
 717
 718         LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
 719                            [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
 720         LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
 721                            [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
 722         LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
 723                            [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
 724         LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
 725                            [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
 726         LB_LINUX_CONFIG_IM([CRYPTO_WP512],[],
 727                            [AC_MSG_WARN([kernel WP512 support is recommended by using GSS.])])
 728         LB_LINUX_CONFIG_IM([CRYPTO_ARC4],[],
 729                            [AC_MSG_WARN([kernel ARC4 support is recommended by using GSS.])])
 730         LB_LINUX_CONFIG_IM([CRYPTO_DES],[],
 731                            [AC_MSG_WARN([kernel DES support is recommended by using GSS.])])
 732         LB_LINUX_CONFIG_IM([CRYPTO_TWOFISH],[],
 733                            [AC_MSG_WARN([kernel TWOFISH support is recommended by using GSS.])])
 734         LB_LINUX_CONFIG_IM([CRYPTO_CAST6],[],
 735                            [AC_MSG_WARN([kernel CAST6 support is recommended by using GSS.])])
 736         dnl FIXME
 737         dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
 738         dnl FIXME
 739         LB_LINUX_CONFIG_IM([CRYPTO_AES],[],
 740                            [AC_MSG_WARN([kernel AES support is recommended by using GSS.])])
 741
 742         AC_CHECK_LIB([gssapi], [gss_init_sec_context],
 743                      [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
 744                      [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
 745                                    [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
 746                                    [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
 747
 748         AC_SUBST(GSSAPI_LIBS)
 749
 750         AC_KERBEROS_V5
 751  fi
 752 ])
 753
 754 # LC_FUNC_MS_FLOCK_LOCK
 755 #
 756 # SLES9 kernel has MS_FLOCK_LOCK sb flag
 757 #
 758 AC_DEFUN([LC_FUNC_MS_FLOCK_LOCK],
 759 [AC_MSG_CHECKING([if kernel has MS_FLOCK_LOCK sb flag])
 760 LB_LINUX_TRY_COMPILE([
 761         #include <linux/fs.h>
 762 ],[
 763         int flags = MS_FLOCK_LOCK;
 764 ],[
 765         AC_DEFINE(HAVE_MS_FLOCK_LOCK, 1,
 766                 [kernel has MS_FLOCK_LOCK flag])
 767         AC_MSG_RESULT([yes])
 768 ],[
 769         AC_MSG_RESULT([no])
 770 ])
 771 ])
 772
 773 #
 774 # LC_FUNC_HAVE_CAN_SLEEP_ARG
 775 #
 776 # SLES9 kernel has third arg can_sleep
 777 # in fs/locks.c: flock_lock_file_wait()
 778 #
 779 AC_DEFUN([LC_FUNC_HAVE_CAN_SLEEP_ARG],
 780 [AC_MSG_CHECKING([if kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 781 LB_LINUX_TRY_COMPILE([
 782         #include <linux/fs.h>
 783 ],[
 784         int cansleep;
 785         struct file *file;
 786         struct file_lock *file_lock;
 787         flock_lock_file_wait(file, file_lock, cansleep);
 788 ],[
 789         AC_DEFINE(HAVE_CAN_SLEEP_ARG, 1,
 790                 [kernel has third arg can_sleep in fs/locks.c: flock_lock_file_wait()])
 791         AC_MSG_RESULT([yes])
 792 ],[
 793         AC_MSG_RESULT([no])
 794 ])
 795 ])
 796
 797 #
 798 # LC_FUNC_F_OP_FLOCK
 799 #
 800 # rhel4.2 kernel has f_op->flock field
 801 #
 802 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 803 [AC_MSG_CHECKING([if struct file_operations has flock field])
 804 LB_LINUX_TRY_COMPILE([
 805         #include <linux/fs.h>
 806 ],[
 807         struct file_operations ll_file_operations_flock;
 808         ll_file_operations_flock.flock = NULL;
 809 ],[
 810         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 811                 [struct file_operations has flock field])
 812         AC_MSG_RESULT([yes])
 813 ],[
 814         AC_MSG_RESULT([no])
 815 ])
 816 ])
 817
 818 #
 819 # LC_TASK_PPTR
 820 #
 821 # task struct has p_pptr instead of parent
 822 #
 823 AC_DEFUN([LC_TASK_PPTR],
 824 [AC_MSG_CHECKING([task p_pptr found])
 825 LB_LINUX_TRY_COMPILE([
 826         #include <linux/sched.h>
 827 ],[
 828         struct task_struct *p;
 829
 830         p = p->p_pptr;
 831 ],[
 832         AC_MSG_RESULT([yes])
 833         AC_DEFINE(HAVE_TASK_PPTR, 1, [task p_pptr found])
 834 ],[
 835         AC_MSG_RESULT([no])
 836 ])
 837 ])
 838
 839 #
 840 # LC_FUNC_F_OP_FLOCK
 841 #
 842 # rhel4.2 kernel has f_op->flock field
 843 #
 844 AC_DEFUN([LC_FUNC_F_OP_FLOCK],
 845 [AC_MSG_CHECKING([if struct file_operations has flock field])
 846 LB_LINUX_TRY_COMPILE([
 847         #include <linux/fs.h>
 848 ],[
 849         struct file_operations ll_file_operations_flock;
 850         ll_file_operations_flock.flock = NULL;
 851 ],[
 852         AC_DEFINE(HAVE_F_OP_FLOCK, 1,
 853                 [struct file_operations has flock field])
 854         AC_MSG_RESULT([yes])
 855 ],[
 856         AC_MSG_RESULT([no])
 857 ])
 858 ])
 859
 860 # LC_INODE_I_MUTEX
 861 # after 2.6.15 inode have i_mutex intead of i_sem
 862 AC_DEFUN([LC_INODE_I_MUTEX],
 863 [AC_MSG_CHECKING([use inode have i_mutex ])
 864 LB_LINUX_TRY_COMPILE([
 865         #include <linux/mutex.h>
 866         #include <linux/fs.h>
 867         #undef i_mutex
 868 ],[
 869         struct inode i;
 870
 871         mutex_unlock(&i.i_mutex);
 872 ],[
 873         AC_MSG_RESULT(yes)
 874         AC_DEFINE(HAVE_INODE_I_MUTEX, 1,
 875                 [after 2.6.15 inode have i_mutex intead of i_sem])
 876 ],[
 877         AC_MSG_RESULT(NO)
 878 ])
 879 ])
 880
 881 # LC_DQUOTOFF_MUTEX
 882 # after 2.6.17 dquote use mutex instead if semaphore
 883 AC_DEFUN([LC_DQUOTOFF_MUTEX],
 884 [AC_MSG_CHECKING([use dqonoff_mutex])
 885 LB_LINUX_TRY_COMPILE([
 886         #include <linux/mutex.h>
 887         #include <linux/fs.h>
 888         #include <linux/quota.h>
 889 ],[
 890         struct quota_info dq;
 891
 892         mutex_unlock(&dq.dqonoff_mutex);
 893 ],[
 894         AC_MSG_RESULT(yes)
 895         AC_DEFINE(HAVE_DQUOTOFF_MUTEX, 1,
 896                 [after 2.6.17 dquote use mutex instead if semaphore])
 897 ],[
 898         AC_MSG_RESULT(NO)
 899 ])
 900 ])
 901
 902 #
 903 # LC_STATFS_DENTRY_PARAM
 904 # starting from 2.6.18 linux kernel uses dentry instead of
 905 # super_block for first vfs_statfs argument
 906 #
 907 AC_DEFUN([LC_STATFS_DENTRY_PARAM],
 908 [AC_MSG_CHECKING([first vfs_statfs parameter is dentry])
 909 LB_LINUX_TRY_COMPILE([
 910         #include <linux/fs.h>
 911 ],[
 912         int vfs_statfs(struct dentry *, struct kstatfs *);
 913 ],[
 914         AC_DEFINE(HAVE_STATFS_DENTRY_PARAM, 1,
 915                 [first parameter of vfs_statfs is dentry])
 916         AC_MSG_RESULT([yes])
 917 ],[
 918         AC_MSG_RESULT([no])
 919 ])
 920 ])
 921
 922 #
 923 # LC_VFS_KERN_MOUNT
 924 # starting from 2.6.18 kernel don't export do_kern_mount
 925 # and want to use vfs_kern_mount instead.
 926 #
 927 AC_DEFUN([LC_VFS_KERN_MOUNT],
 928 [AC_MSG_CHECKING([vfs_kern_mount exist in kernel])
 929 LB_LINUX_TRY_COMPILE([
 930         #include <linux/mount.h>
 931 ],[
 932         vfs_kern_mount(NULL, 0, NULL, NULL);
 933 ],[
 934         AC_DEFINE(HAVE_VFS_KERN_MOUNT, 1,
 935                 [vfs_kern_mount exist in kernel])
 936         AC_MSG_RESULT([yes])
 937 ],[
 938         AC_MSG_RESULT([no])
 939 ])
 940 ])
 941
 942 #
 943 # LC_INVALIDATEPAGE_RETURN_INT
 944 # more 2.6 api changes.  return type for the invalidatepage
 945 # address_space_operation is 'void' in new kernels but 'int' in old
 946 #
 947 AC_DEFUN([LC_INVALIDATEPAGE_RETURN_INT],
 948 [AC_MSG_CHECKING([invalidatepage has return int])
 949 LB_LINUX_TRY_COMPILE([
 950         #include <linux/buffer_head.h>
 951 ],[
 952         int rc = block_invalidatepage(NULL, 0);
 953 ],[
 954         AC_MSG_RESULT(yes)
 955         AC_DEFINE(HAVE_INVALIDATEPAGE_RETURN_INT, 1,
 956                 [Define if return type of invalidatepage should be int])
 957 ],[
 958         AC_MSG_RESULT(NO)
 959 ])
 960 ])
 961
 962 # LC_UMOUNTBEGIN_HAS_VFSMOUNT
 963 # more 2.6 API changes. 2.6.18 umount_begin has different parameters
 964 AC_DEFUN([LC_UMOUNTBEGIN_HAS_VFSMOUNT],
 965 [AC_MSG_CHECKING([if umount_begin needs vfsmount parameter instead of super_block])
 966 tmp_flags="$EXTRA_KCFLAGS"
 967 EXTRA_KCFLAGS="-Werror"
 968 LB_LINUX_TRY_COMPILE([
 969         #include <linux/fs.h>
 970
 971         struct vfsmount;
 972         static void cfg_umount_begin (struct vfsmount *v, int flags)
 973         {
 974                 ;
 975         }
 976
 977         static struct super_operations cfg_super_operations = {
 978                 .umount_begin   = cfg_umount_begin,
 979         };
 980 ],[
 981         cfg_super_operations.umount_begin(NULL,0);
 982 ],[
 983         AC_MSG_RESULT(yes)
 984         AC_DEFINE(HAVE_UMOUNTBEGIN_VFSMOUNT, 1,
 985                 [Define umount_begin need second argument])
 986 ],[
 987         AC_MSG_RESULT(NO)
 988 ])
 989 EXTRA_KCFLAGS="$tmp_flags"
 990 ])
 991
 992 # 2.6.19 API changes
 993 # inode don't have i_blksize field
 994 AC_DEFUN([LC_INODE_BLKSIZE],
 995 [AC_MSG_CHECKING([inode has i_blksize field])
 996 LB_LINUX_TRY_COMPILE([
 997 #include <linux/fs.h>
 998 ],[
 999         struct inode i;
1000         i.i_blksize = 0;
1001 ],[
1002         AC_MSG_RESULT(yes)
1003         AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
1004                 [struct inode has i_blksize field])
1005 ],[
1006         AC_MSG_RESULT(NO)
1007 ])
1008 ])
1009
1010 # LC_VFS_READDIR_U64_INO
1011 # 2.6.19 use u64 for inode number instead of inode_t
1012 AC_DEFUN([LC_VFS_READDIR_U64_INO],
1013 [AC_MSG_CHECKING([check vfs_readdir need 64bit inode number])
1014 tmp_flags="$EXTRA_KCFLAGS"
1015 EXTRA_KCFLAGS="-Werror"
1016 LB_LINUX_TRY_COMPILE([
1017 #include <linux/fs.h>
1018         int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
1019                       u64 ino, unsigned int d_type)
1020         {
1021                 return 0;
1022         }
1023 ],[
1024         filldir_t filter;
1025
1026         filter = fillonedir;
1027         return 1;
1028 ],[
1029         AC_MSG_RESULT(yes)
1030         AC_DEFINE(HAVE_VFS_READDIR_U64_INO, 1,
1031                 [if vfs_readdir need 64bit inode number])
1032 ],[
1033         AC_MSG_RESULT(NO)
1034 ])
1035 EXTRA_KCFLAGS="$tmp_flags"
1036 ])
1037
1038 # LC_GENERIC_FILE_WRITE
1039 # 2.6.19 introduce do_sync_write instead of
1040 # generic_file_write
1041 AC_DEFUN([LC_GENERIC_FILE_WRITE],
1042 [AC_MSG_CHECKING([use generic_file_write])
1043 LB_LINUX_TRY_COMPILE([
1044         #include <linux/fs.h>
1045 ],[
1046         int result = generic_file_read(NULL, NULL, 0, 0);
1047 ],[
1048         AC_MSG_RESULT(yes)
1049         AC_DEFINE(HAVE_GENERIC_FILE_WRITE, 1,
1050                 [use generic_file_write])
1051 ],[
1052         AC_MSG_RESULT(NO)
1053 ])
1054 ])
1055
1056 # LC_GENERIC_FILE_READ
1057 # 2.6.19 need to use do_sync_read instead of
1058 # generic_file_read
1059 AC_DEFUN([LC_GENERIC_FILE_READ],
1060 [AC_MSG_CHECKING([use generic_file_read])
1061 LB_LINUX_TRY_COMPILE([
1062         #include <linux/fs.h>
1063 ],[
1064         int result = generic_file_read(NULL, NULL, 0, 0);
1065 ],[
1066         AC_MSG_RESULT(yes)
1067         AC_DEFINE(HAVE_GENERIC_FILE_READ, 1,
1068                 [use generic_file_read])
1069 ],[
1070         AC_MSG_RESULT(NO)
1071 ])
1072 ])
1073
1074 # LC_NR_PAGECACHE
1075 # 2.6.18 don't export nr_pagecahe
1076 AC_DEFUN([LC_NR_PAGECACHE],
1077 [AC_MSG_CHECKING([kernel export nr_pagecache])
1078 LB_LINUX_TRY_COMPILE([
1079         #include <linux/pagemap.h>
1080 ],[
1081         return atomic_read(&nr_pagecache);
1082 ],[
1083         AC_MSG_RESULT(yes)
1084         AC_DEFINE(HAVE_NR_PAGECACHE, 1,
1085                 [is kernel export nr_pagecache])
1086 ],[
1087         AC_MSG_RESULT(NO)
1088 ])
1089 ])
1090
1091 # LC_CANCEL_DIRTY_PAGE
1092 # 2.6.20 introduse cancel_dirty_page instead of
1093 # clear_page_dirty.
1094 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
1095 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
1096 LB_LINUX_TRY_COMPILE([
1097         #include <linux/page-flags.h>
1098 ],[
1099         cancel_dirty_page(NULL, 0);
1100 ],[
1101         AC_MSG_RESULT(yes)
1102         AC_DEFINE(HAVE_CANCEL_DIRTY_PAGE, 1,
1103                   [kernel has cancel_dirty_page instead of clear_page_dirty])
1104 ],[
1105         AC_MSG_RESULT(NO)
1106 ])
1107 ])
1108
1109 #
1110 # LC_PAGE_CONSTANT
1111 #
1112 # In order to support raid5 zerocopy patch, we have to patch the kernel to make
1113 # it support constant page, which means the page won't be modified during the
1114 # IO.
1115 #
1116 AC_DEFUN([LC_PAGE_CONSTANT],
1117 [AC_MSG_CHECKING([if kernel have PageConstant defined])
1118 LB_LINUX_TRY_COMPILE([
1119         #include <linux/page-flags.h>
1120 ],[
1121         #ifndef PG_constant
1122         #error "Have no raid5 zcopy patch"
1123         #endif
1124 ],[
1125         AC_MSG_RESULT(yes)
1126         AC_DEFINE(HAVE_PAGE_CONSTANT, 1, [kernel have PageConstant supported])
1127 ],[
1128         AC_MSG_RESULT(no);
1129 ])
1130 ])
1131
1132 # RHEL5 in FS-cache patch rename PG_checked flag
1133 # into PG_fs_misc
1134 AC_DEFUN([LC_PG_FS_MISC],
1135 [AC_MSG_CHECKING([kernel has PG_fs_misc])
1136 LB_LINUX_TRY_COMPILE([
1137         #include <linux/page-flags.h>
1138 ],[
1139         #ifndef PG_fs_misc
1140         #error PG_fs_misc not defined in kernel
1141         #endif
1142 ],[
1143         AC_MSG_RESULT(yes)
1144         AC_DEFINE(HAVE_PG_FS_MISC, 1,
1145                   [is kernel have PG_fs_misc])
1146 ],[
1147         AC_MSG_RESULT(NO)
1148 ])
1149 ])
1150
1151 # RHEL5 PageChecked and SetPageChecked defined
1152 AC_DEFUN([LC_PAGE_CHECKED],
1153 [AC_MSG_CHECKING([kernel has PageChecked and SetPageChecked])
1154 LB_LINUX_TRY_COMPILE([
1155         #include <linux/page-flags.h>
1156 ],[
1157         #ifndef PageChecked
1158         #error PageChecked not defined in kernel
1159         #endif
1160         #ifndef SetPageChecked
1161         #error SetPageChecked not defined in kernel
1162         #endif
1163 ],[
1164         AC_MSG_RESULT(yes)
1165         AC_DEFINE(HAVE_PAGE_CHECKED, 1,
1166                   [does kernel have PageChecked and SetPageChecked])
1167 ],[
1168         AC_MSG_RESULT(NO)
1169 ])
1170 ])
1171
1172 AC_DEFUN([LC_EXPORT_TRUNCATE_COMPLETE],
1173 [LB_CHECK_SYMBOL_EXPORT([truncate_complete_page],
1174 [mm/truncate.c],[
1175 AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
1176             [kernel export truncate_complete_page])
1177 ],[
1178 ])
1179 ])
1180
1181 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
1182 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
1183 [fs/dcache.c],[
1184 AC_DEFINE(HAVE_D_REHASH_COND, 1,
1185             [d_rehash_cond is exported by the kernel])
1186 ],[
1187 ])
1188 ])
1189
1190 AC_DEFUN([LC_EXPORT___D_REHASH],
1191 [LB_CHECK_SYMBOL_EXPORT([__d_rehash],
1192 [fs/dcache.c],[
1193 AC_DEFINE(HAVE___D_REHASH, 1,
1194             [__d_rehash is exported by the kernel])
1195 ],[
1196 ])
1197 ])
1198
1199 AC_DEFUN([LC_EXPORT_D_MOVE_LOCKED],
1200 [LB_CHECK_SYMBOL_EXPORT([d_move_locked],
1201 [fs/dcache.c],[
1202 AC_DEFINE(HAVE_D_MOVE_LOCKED, 1,
1203             [d_move_locked is exported by the kernel])
1204 ],[
1205 ])
1206 ])
1207
1208 AC_DEFUN([LC_EXPORT___D_MOVE],
1209 [LB_CHECK_SYMBOL_EXPORT([__d_move],
1210 [fs/dcache.c],[
1211 AC_DEFINE(HAVE___D_MOVE, 1,
1212             [__d_move is exported by the kernel])
1213 ],[
1214 ])
1215 ])
1216
1217 # The actual symbol exported varies among architectures, so we need
1218 # to check many symbols (but only in the current architecture.)  No
1219 # matter what symbol is exported, the kernel #defines node_to_cpumask
1220 # to the appropriate function and that's what we use.
1221 AC_DEFUN([LC_EXPORT_NODE_TO_CPUMASK],
1222          [LB_CHECK_SYMBOL_EXPORT([node_to_cpumask],
1223                                  [arch/$LINUX_ARCH/mm/numa.c],
1224                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1225                                             [node_to_cpumask is exported by
1226                                              the kernel])]) # x86_64
1227           LB_CHECK_SYMBOL_EXPORT([node_to_cpu_mask],
1228                                  [arch/$LINUX_ARCH/kernel/smpboot.c],
1229                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1230                                             [node_to_cpumask is exported by
1231                                              the kernel])]) # ia64
1232           LB_CHECK_SYMBOL_EXPORT([node_2_cpu_mask],
1233                                  [arch/$LINUX_ARCH/kernel/smpboot.c],
1234                                  [AC_DEFINE(HAVE_NODE_TO_CPUMASK, 1,
1235                                             [node_to_cpumask is exported by
1236                                              the kernel])]) # i386
1237           ])
1238
1239 # 2.6.22 lost second parameter for invalidate_bdev
1240 AC_DEFUN([LC_INVALIDATE_BDEV_2ARG],
1241 [AC_MSG_CHECKING([if invalidate_bdev has second argument])
1242 LB_LINUX_TRY_COMPILE([
1243         #include <linux/buffer_head.h>
1244 ],[
1245         invalidate_bdev(NULL,0);
1246 ],[
1247         AC_MSG_RESULT([yes])
1248         AC_DEFINE(HAVE_INVALIDATE_BDEV_2ARG, 1,
1249                 [invalidate_bdev has second argument])
1250 ],[
1251         AC_MSG_RESULT([no])
1252 ])
1253 ])
1254
1255 # 2.6.23 have return type 'void' for unregister_blkdev
1256 AC_DEFUN([LC_UNREGISTER_BLKDEV_RETURN_INT],
1257 [AC_MSG_CHECKING([if unregister_blkdev return int])
1258 LB_LINUX_TRY_COMPILE([
1259         #include <linux/fs.h>
1260 ],[
1261         int i = unregister_blkdev(0,NULL);
1262 ],[
1263         AC_MSG_RESULT([yes])
1264         AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
1265                 [unregister_blkdev return int])
1266 ],[
1267         AC_MSG_RESULT([no])
1268 ])
1269 ])
1270
1271 # 2.6.23 change .sendfile to .splice_read
1272 AC_DEFUN([LC_KERNEL_SPLICE_READ],
1273 [AC_MSG_CHECKING([if kernel has .splice_read])
1274 LB_LINUX_TRY_COMPILE([
1275         #include <linux/fs.h>
1276 ],[
1277         struct file_operations file;
1278
1279         file.splice_read = NULL;
1280 ], [
1281         AC_MSG_RESULT([yes])
1282         AC_DEFINE(HAVE_KERNEL_SPLICE_READ, 1,
1283                 [kernel has .slice_read])
1284 ],[
1285         AC_MSG_RESULT([no])
1286 ])
1287 ])
1288
1289 # 2.6.23 extract nfs export related data into exportfs.h
1290 AC_DEFUN([LC_HAVE_EXPORTFS_H],
1291 [
1292 tmpfl="$CFLAGS"
1293 CFLAGS="$CFLAGS -I$LINUX_OBJ/include"
1294 AC_CHECK_HEADERS([linux/exportfs.h])
1295 CFLAGS="$tmpfl"
1296 ])
1297
1298 #
1299 # LC_VFS_INTENT_PATCHES
1300 #
1301 # check if the kernel has the VFS intent patches
1302 AC_DEFUN([LC_VFS_INTENT_PATCHES],
1303 [AC_MSG_CHECKING([if the kernel has the VFS intent patches])
1304 LB_LINUX_TRY_COMPILE([
1305         #include <linux/fs.h>
1306         #include <linux/namei.h>
1307 ],[
1308         struct nameidata nd;
1309         struct lookup_intent *it;
1310
1311         it = &nd.intent;
1312         intent_init(it, IT_OPEN);
1313         it->d.lustre.it_disposition = 0;
1314         it->d.lustre.it_data = NULL;
1315 ],[
1316         AC_MSG_RESULT([yes])
1317         AC_DEFINE(HAVE_VFS_INTENT_PATCHES, 1, [VFS intent patches are applied])
1318 ],[
1319         AC_MSG_RESULT([no])
1320 ])
1321 ])
1322
1323 AC_DEFUN([LC_S_TIME_GRAN],
1324 [AC_MSG_CHECKING([if super block has s_time_gran member])
1325 LB_LINUX_TRY_COMPILE([
1326         #include <linux/fs.h>
1327 ],[
1328         struct super_block sb;
1329
1330         return sb.s_time_gran;
1331 ],[
1332         AC_MSG_RESULT([yes])
1333         AC_DEFINE(HAVE_S_TIME_GRAN, 1, [super block has s_time_gran member])
1334 ],[
1335         AC_MSG_RESULT([no])
1336 ])
1337 ])
1338
1339 AC_DEFUN([LC_SB_TIME_GRAN],
1340 [AC_MSG_CHECKING([if kernel has old get_sb_time_gran])
1341 LB_LINUX_TRY_COMPILE([
1342         #include <linux/fs.h>
1343 ],[
1344         return get_sb_time_gran(NULL);
1345 ],[
1346         AC_MSG_RESULT([yes])
1347         AC_DEFINE(HAVE_SB_TIME_GRAN, 1, [kernel has old get_sb_time_gran])
1348 ],[
1349         AC_MSG_RESULT([no])
1350 ])
1351 ])
1352
1353
1354 # ~2.6.12 merge patch from oracle to convert tree_lock from spinlock to rwlock
1355 AC_DEFUN([LC_RW_TREE_LOCK],
1356 [AC_MSG_CHECKING([if kernel has tree_lock as rwlock])
1357 tmp_flags="$EXTRA_KCFLAGS"
1358 EXTRA_KCFLAGS="-Werror"
1359 LB_LINUX_TRY_COMPILE([
1360         #include <linux/fs.h>
1361 ],[
1362         struct address_space a;
1363
1364         write_lock(&a.tree_lock);
1365 ],[
1366         AC_MSG_RESULT([yes])
1367         AC_DEFINE(HAVE_RW_TREE_LOCK, 1, [kernel has tree_lock as rw_lock])
1368 ],[
1369         AC_MSG_RESULT([no])
1370 ])
1371 EXTRA_KCFLAGS="$tmp_flags"
1372 ])
1373
1374 AC_DEFUN([LC_CONST_ACL_SIZE],
1375 [AC_MSG_CHECKING([calc acl size])
1376 tmp_flags="$CFLAGS"
1377 CFLAGS="$CFLAGS -I $LINUX_OBJ/include $EXTRA_KCFLAGS"
1378 AC_TRY_RUN([
1379 #define __KERNEL__
1380 #include <linux/autoconf.h>
1381 #include <linux/types.h>
1382 #undef __KERNEL__
1383 // block include
1384 #define __LINUX_POSIX_ACL_H
1385
1386 # ifdef CONFIG_FS_POSIX_ACL
1387 #  ifdef HAVE_XATTR_ACL
1388 #   include <linux/xattr_acl.h>
1389 #  endif
1390 #  ifdef HAVE_LINUX_POSIX_ACL_XATTR_H
1391 #   include <linux/posix_acl_xattr.h>
1392 #  endif
1393 # endif
1394
1395 #include <linux/lustre_acl.h>
1396
1397 #include <stdio.h>
1398
1399 int main(void)
1400 {
1401     int size = mds_xattr_acl_size(LUSTRE_POSIX_ACL_MAX_ENTRIES);
1402     FILE *f = fopen("acl.size","w+");
1403     fprintf(f,"%d", size);
1404     fclose(f);
1405
1406     return 0;
1407 }
1408
1409 ],[
1410         acl_size=`cat acl.size`
1411         AC_MSG_RESULT([ACL size $acl_size])
1412         AC_DEFINE_UNQUOTED(XATTR_ACL_SIZE, AS_TR_SH([$acl_size]), [size of xattr acl])
1413 ],[
1414         AC_ERROR([ACL size can't computed])
1415 ])
1416 CFLAGS="$tmp_flags"
1417 ])
1418
1419 #
1420 # check for crypto API
1421 #
1422 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
1423 [AC_MSG_CHECKING([if kernel has block cipher support])
1424 LB_LINUX_TRY_COMPILE([
1425         #include <linux/crypto.h>
1426 ],[
1427         int v = CRYPTO_ALG_TYPE_BLKCIPHER;
1428 ],[
1429         AC_MSG_RESULT([yes])
1430         AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
1431 ],[
1432         AC_MSG_RESULT([no])
1433 ])
1434 ])
1435
1436 #
1437 # check for FS_RENAME_DOES_D_MOVE flag
1438 #
1439 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
1440 [AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
1441 LB_LINUX_TRY_COMPILE([
1442         #include <linux/fs.h>
1443 ],[
1444         int v = FS_RENAME_DOES_D_MOVE;
1445 ],[
1446         AC_MSG_RESULT([yes])
1447         AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
1448 ],[
1449         AC_MSG_RESULT([no])
1450 ])
1451 ])
1452
1453 #
1454 # LC_PROG_LINUX
1455 #
1456 # Lustre linux kernel checks
1457 #
1458 AC_DEFUN([LC_PROG_LINUX],
1459          [LC_LUSTRE_VERSION_H
1460          if test x$enable_server = xyes ; then
1461              AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
1462              LC_CONFIG_BACKINGFS
1463          fi
1464          LC_CONFIG_PINGER
1465          LC_CONFIG_CHECKSUM
1466          LC_CONFIG_LIBLUSTRE_RECOVERY
1467          LC_CONFIG_QUOTA
1468          LC_CONFIG_HEALTH_CHECK_WRITE
1469          LC_CONFIG_LRU_RESIZE
1470
1471          LC_TASK_PPTR
1472          # RHEL4 patches
1473          LC_EXPORT_TRUNCATE_COMPLETE
1474          LC_EXPORT_D_REHASH_COND
1475          LC_EXPORT___D_REHASH
1476          LC_EXPORT_D_MOVE_LOCKED
1477          LC_EXPORT___D_MOVE
1478          LC_EXPORT_NODE_TO_CPUMASK
1479
1480          LC_STRUCT_KIOBUF
1481          LC_FUNC_COND_RESCHED
1482          LC_FUNC_ZAP_PAGE_RANGE
1483          LC_FUNC_PDE
1484          LC_FUNC_DIRECT_IO
1485          LC_HEADER_MM_INLINE
1486          LC_STRUCT_INODE
1487          LC_FUNC_REGISTER_CACHE
1488          LC_FUNC_GRAB_CACHE_PAGE_NOWAIT_GFP
1489          LC_FUNC_DEV_SET_RDONLY
1490          LC_FUNC_FILEMAP_FDATAWRITE
1491          LC_STRUCT_STATFS
1492          LC_FUNC_PAGE_MAPPED
1493          LC_STRUCT_FILE_OPS_UNLOCKED_IOCTL
1494          LC_FILEMAP_POPULATE
1495          LC_D_ADD_UNIQUE
1496          LC_BIT_SPINLOCK_H
1497
1498          LC_XATTR_ACL
1499          LC_POSIX_ACL_XATTR_H
1500          LC_CONST_ACL_SIZE
1501
1502          LC_STRUCT_INTENT_FILE
1503
1504          LC_FUNC_SET_FS_PWD
1505          LC_CAPA_CRYPTO
1506          LC_CONFIG_GSS
1507          LC_FUNC_MS_FLOCK_LOCK
1508          LC_FUNC_HAVE_CAN_SLEEP_ARG
1509          LC_FUNC_F_OP_FLOCK
1510          LC_QUOTA_READ
1511          LC_COOKIE_FOLLOW_LINK
1512          LC_FUNC_RCU
1513
1514          # does the kernel have VFS intent patches?
1515          LC_VFS_INTENT_PATCHES
1516
1517          # ~2.6.11
1518          LC_S_TIME_GRAN
1519          LC_SB_TIME_GRAN
1520
1521          # 2.6.12
1522          LC_RW_TREE_LOCK
1523
1524          # 2.6.15
1525          LC_INODE_I_MUTEX
1526
1527          # 2.6.17
1528          LC_DQUOTOFF_MUTEX
1529
1530          # 2.6.18
1531          LC_NR_PAGECACHE
1532          LC_STATFS_DENTRY_PARAM
1533          LC_VFS_KERN_MOUNT
1534          LC_INVALIDATEPAGE_RETURN_INT
1535          LC_UMOUNTBEGIN_HAS_VFSMOUNT
1536
1537          #2.6.18 + RHEL5 (fc6)
1538          LC_PG_FS_MISC
1539          LC_PAGE_CHECKED
1540
1541          # 2.6.19
1542          LC_INODE_BLKSIZE
1543          LC_VFS_READDIR_U64_INO
1544          LC_GENERIC_FILE_READ
1545          LC_GENERIC_FILE_WRITE
1546
1547          # 2.6.20
1548          LC_CANCEL_DIRTY_PAGE
1549
1550          # raid5-zerocopy patch
1551          LC_PAGE_CONSTANT
1552
1553          # 2.6.22
1554          LC_INVALIDATE_BDEV_2ARG
1555          LC_ASYNC_BLOCK_CIPHER
1556          LC_FS_RENAME_DOES_D_MOVE
1557          # 2.6.23
1558          LC_UNREGISTER_BLKDEV_RETURN_INT
1559          LC_KERNEL_SPLICE_READ
1560          LC_HAVE_EXPORTFS_H
1561          LC_EXPORT_NR_FREE_BUFFER_PAGES
1562 ])
1563
1564 #
1565 # LC_CONFIG_CLIENT_SERVER
1566 #
1567 # Build client/server sides of Lustre
1568 #
1569 AC_DEFUN([LC_CONFIG_CLIENT_SERVER],
1570 [AC_MSG_CHECKING([whether to build Lustre server support])
1571 AC_ARG_ENABLE([server],
1572         AC_HELP_STRING([--disable-server],
1573                         [disable Lustre server support]),
1574         [],[enable_server='yes'])
1575 AC_MSG_RESULT([$enable_server])
1576
1577 AC_MSG_CHECKING([whether to build Lustre client support])
1578 AC_ARG_ENABLE([client],
1579         AC_HELP_STRING([--disable-client],
1580                         [disable Lustre client support]),
1581         [],[enable_client='yes'])
1582 AC_MSG_RESULT([$enable_client])])
1583
1584 #
1585 # LC_CONFIG_LIBLUSTRE
1586 #
1587 # whether to build liblustre
1588 #
1589 AC_DEFUN([LC_CONFIG_LIBLUSTRE],
1590 [AC_MSG_CHECKING([whether to build Lustre library])
1591 AC_ARG_ENABLE([liblustre],
1592         AC_HELP_STRING([--disable-liblustre],
1593                         [disable building of Lustre library]),
1594         [],[enable_liblustre=$with_sysio])
1595 AC_MSG_RESULT([$enable_liblustre])
1596 # only build sysio if liblustre is built
1597 with_sysio="$enable_liblustre"
1598
1599 AC_MSG_CHECKING([whether to build liblustre tests])
1600 AC_ARG_ENABLE([liblustre-tests],
1601         AC_HELP_STRING([--enable-liblustre-tests],
1602                         [enable liblustre tests, if --disable-tests is used]),
1603         [],[enable_liblustre_tests=$enable_tests])
1604 if test x$enable_liblustre != xyes ; then
1605    enable_liblustre_tests='no'
1606 fi
1607 AC_MSG_RESULT([$enable_liblustre_tests])
1608
1609 AC_MSG_CHECKING([whether to enable liblustre acl])
1610 AC_ARG_ENABLE([liblustre-acl],
1611         AC_HELP_STRING([--disable-liblustre-acl],
1612                         [disable ACL support for liblustre]),
1613         [],[enable_liblustre_acl=yes])
1614 AC_MSG_RESULT([$enable_liblustre_acl])
1615 if test x$enable_liblustre_acl = xyes ; then
1616   AC_DEFINE(LIBLUSTRE_POSIX_ACL, 1, Liblustre Support ACL-enabled MDS)
1617 fi
1618
1619 AC_MSG_CHECKING([whether to build mpitests])
1620 AC_ARG_ENABLE([mpitests],
1621         AC_HELP_STRING([--enable-mpitests],
1622                         [build liblustre mpi tests]),
1623         [],[enable_mpitests=no])
1624 AC_MSG_RESULT([$enable_mpitests])
1625
1626 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
1627 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
1628
1629 LC_CONFIG_PINGER
1630 LC_CONFIG_LIBLUSTRE_RECOVERY
1631 ])
1632
1633 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
1634 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
1635 AC_ARG_ENABLE([lru_resize],
1636         AC_HELP_STRING([--enable-lru-resize],
1637                         [enable lru resize support]),
1638         [],[enable_lru_resize='yes'])
1639 AC_MSG_RESULT([$enable_lru_resize])
1640 if test x$enable_lru_resize != xno; then
1641    AC_DEFINE(HAVE_LRU_RESIZE_SUPPORT, 1, [Enable lru resize support])
1642 fi
1643 ])
1644
1645 #
1646 # LC_CONFIG_QUOTA
1647 #
1648 # whether to enable quota support
1649 #
1650 AC_DEFUN([LC_CONFIG_QUOTA],
1651 [AC_MSG_CHECKING([whether to disable quota support])
1652 AC_ARG_ENABLE([quota],
1653         AC_HELP_STRING([--disable-quota],
1654                         [disable quota support]),
1655         [],[enable_quota='yes'])
1656 AC_MSG_RESULT([$enable_quota])
1657 if test x$linux25 != xyes; then
1658    enable_quota='no'
1659 fi
1660 if test x$enable_quota != xno; then
1661    AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
1662 fi
1663 ])
1664
1665 #
1666 # LC_CONFIG_SPLIT
1667 #
1668 # whether to enable split support
1669 #
1670 AC_DEFUN([LC_CONFIG_SPLIT],
1671 [AC_MSG_CHECKING([whether to enable split support])
1672 AC_ARG_ENABLE([split],
1673         AC_HELP_STRING([--enable-split],
1674                         [enable split support]),
1675         [],[enable_split='no'])
1676 AC_MSG_RESULT([$enable_split])
1677 if test x$enable_split != xno; then
1678    AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
1679 fi
1680 ])
1681
1682 AC_DEFUN([LC_QUOTA_READ],
1683 [AC_MSG_CHECKING([if kernel supports quota_read])
1684 LB_LINUX_TRY_COMPILE([
1685         #include <linux/fs.h>
1686 ],[
1687         struct super_operations sp;
1688         void *i = (void *)sp.quota_read;
1689 ],[
1690         AC_MSG_RESULT([yes])
1691         AC_DEFINE(KERNEL_SUPPORTS_QUOTA_READ, 1, [quota_read found])
1692 ],[
1693         AC_MSG_RESULT([no])
1694 ])
1695 ])
1696
1697 #
1698 # LC_COOKIE_FOLLOW_LINK
1699 #
1700 # kernel 2.6.13+ ->follow_link returns a cookie
1701 #
1702
1703 AC_DEFUN([LC_COOKIE_FOLLOW_LINK],
1704 [AC_MSG_CHECKING([if inode_operations->follow_link returns a cookie])
1705 LB_LINUX_TRY_COMPILE([
1706         #include <linux/fs.h>
1707         #include <linux/namei.h>
1708 ],[
1709         struct dentry dentry;
1710         struct nameidata nd;
1711
1712         dentry.d_inode->i_op->put_link(&dentry, &nd, NULL);
1713 ],[
1714         AC_DEFINE(HAVE_COOKIE_FOLLOW_LINK, 1, [inode_operations->follow_link returns a cookie])
1715         AC_MSG_RESULT([yes])
1716 ],[
1717         AC_MSG_RESULT([no])
1718 ])
1719 ])
1720
1721 #
1722 # LC_FUNC_RCU
1723 #
1724 # kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
1725 # call_rcu takes three parameters.
1726 #
1727 AC_DEFUN([LC_FUNC_RCU],
1728 [AC_MSG_CHECKING([if kernel have RCU supported])
1729 LB_LINUX_TRY_COMPILE([
1730         #include <linux/rcupdate.h>
1731 ],[],[
1732         AC_DEFINE(HAVE_RCU, 1, [have RCU defined])
1733         AC_MSG_RESULT([yes])
1734
1735         AC_MSG_CHECKING([if call_rcu takes three parameters])
1736         LB_LINUX_TRY_COMPILE([
1737                 #include <linux/rcupdate.h>
1738         ],[
1739                 struct rcu_head rh;
1740                 call_rcu(&rh, (void (*)(struct rcu_head *))1, NULL);
1741         ],[
1742                 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
1743                 AC_MSG_RESULT([yes])
1744         ],[
1745                 AC_MSG_RESULT([no])
1746         ])
1747 ],[
1748         AC_MSG_RESULT([no])
1749 ])
1750 ])
1751
1752 #
1753 # LC_CONFIGURE
1754 #
1755 # other configure checks
1756 #
1757 AC_DEFUN([LC_CONFIGURE],
1758 [LC_CONFIG_OBD_BUFFER_SIZE
1759
1760 # include/liblustre.h
1761 AC_CHECK_HEADERS([asm/page.h sys/user.h sys/vfs.h stdint.h blkid/blkid.h])
1762
1763 # include/lustre/lustre_user.h
1764 # See note there re: __ASM_X86_64_PROCESSOR_H
1765 AC_CHECK_HEADERS([linux/fs.h linux/quota.h])
1766
1767 # liblustre/llite_lib.h
1768 AC_CHECK_HEADERS([xtio.h file.h])
1769
1770 # liblustre/dir.c
1771 AC_CHECK_HEADERS([linux/types.h sys/types.h linux/unistd.h unistd.h])
1772
1773 # liblustre/lutil.c
1774 AC_CHECK_HEADERS([netinet/in.h arpa/inet.h catamount/data.h])
1775 AC_CHECK_FUNCS([inet_ntoa])
1776
1777 # libsysio/src/readlink.c
1778 LC_READLINK_SSIZE_T
1779
1780 # lvfs/prng.c - depends on linux/types.h from liblustre/dir.c
1781 AC_CHECK_HEADERS([linux/random.h], [], [],
1782                  [#ifdef HAVE_LINUX_TYPES_H
1783                   # include <linux/types.h>
1784                   #endif
1785                  ])
1786
1787 # utils/llverfs.c
1788 AC_CHECK_HEADERS([ext2fs/ext2fs.h])
1789
1790 # check for -lz support
1791 ZLIB=""
1792 AC_CHECK_LIB([z],
1793              [adler32],
1794              [AC_CHECK_HEADERS([zlib.h],
1795                                [ZLIB="-lz"
1796                                 AC_DEFINE([HAVE_ADLER], 1,
1797                                           [support alder32 checksum type])],
1798                                [AC_MSG_WARN([No zlib-devel package found,
1799                                              unable to use adler32 checksum])])],
1800              [AC_MSG_WARN([No zlib package found, unable to use adler32 checksum])]
1801 )
1802 AC_SUBST(ZLIB)
1803
1804 # Super safe df
1805 AC_ARG_ENABLE([mindf],
1806       AC_HELP_STRING([--enable-mindf],
1807                       [Make statfs report the minimum available space on any single OST instead of the sum of free space on all OSTs]),
1808       [],[])
1809 if test "$enable_mindf" = "yes" ;  then
1810       AC_DEFINE([MIN_DF], 1, [Report minimum OST free space])
1811 fi
1812
1813 AC_ARG_ENABLE([fail_alloc],
1814         AC_HELP_STRING([--disable-fail-alloc],
1815                 [disable randomly alloc failure]),
1816         [],[enable_fail_alloc=yes])
1817 AC_MSG_CHECKING([whether to randomly failing memory alloc])
1818 AC_MSG_RESULT([$enable_fail_alloc])
1819 if test x$enable_fail_alloc != xno ; then
1820         AC_DEFINE([RANDOM_FAIL_ALLOC], 1, [enable randomly alloc failure])
1821 fi
1822
1823 ])
1824
1825 #
1826 # LC_CONDITIONALS
1827 #
1828 # AM_CONDITIONALS for lustre
1829 #
1830 AC_DEFUN([LC_CONDITIONALS],
1831 [AM_CONDITIONAL(LIBLUSTRE, test x$enable_liblustre = xyes)
1832 AM_CONDITIONAL(USE_QUILT, test x$QUILT != xno)
1833 AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
1834 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
1835 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
1836 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
1837 AM_CONDITIONAL(QUOTA, test x$enable_quota = xyes)
1838 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
1839 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
1840 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
1841 AM_CONDITIONAL(GSS, test x$enable_gss = xyes)
1842 AM_CONDITIONAL(GSS_KEYRING, test x$enable_gss_keyring = xyes)
1843 AM_CONDITIONAL(GSS_PIPEFS, test x$enable_gss_pipefs = xyes)
1844 AM_CONDITIONAL(LIBPTHREAD, test x$enable_libpthread = xyes)
1845 ])
1846
1847 #
1848 # LC_CONFIG_FILES
1849 #
1850 # files that should be generated with AC_OUTPUT
1851 #
1852 AC_DEFUN([LC_CONFIG_FILES],
1853 [AC_CONFIG_FILES([
1854 lustre/Makefile
1855 lustre/autoMakefile
1856 lustre/autoconf/Makefile
1857 lustre/contrib/Makefile
1858 lustre/doc/Makefile
1859 lustre/include/Makefile
1860 lustre/include/lustre_ver.h
1861 lustre/include/linux/Makefile
1862 lustre/include/lustre/Makefile
1863 lustre/kernel_patches/targets/2.6-vanilla.target
1864 lustre/kernel_patches/targets/2.6-rhel4.target
1865 lustre/kernel_patches/targets/2.6-rhel5.target
1866 lustre/kernel_patches/targets/2.6-fc5.target
1867 lustre/kernel_patches/targets/2.6-patchless.target
1868 lustre/kernel_patches/targets/2.6-sles10.target
1869 lustre/ldlm/Makefile
1870 lustre/fid/Makefile
1871 lustre/fid/autoMakefile
1872 lustre/liblustre/Makefile
1873 lustre/liblustre/tests/Makefile
1874 lustre/llite/Makefile
1875 lustre/llite/autoMakefile
1876 lustre/lov/Makefile
1877 lustre/lov/autoMakefile
1878 lustre/lvfs/Makefile
1879 lustre/lvfs/autoMakefile
1880 lustre/mdc/Makefile
1881 lustre/mdc/autoMakefile
1882 lustre/lmv/Makefile
1883 lustre/lmv/autoMakefile
1884 lustre/mds/Makefile
1885 lustre/mds/autoMakefile
1886 lustre/mdt/Makefile
1887 lustre/mdt/autoMakefile
1888 lustre/cmm/Makefile
1889 lustre/cmm/autoMakefile
1890 lustre/mdd/Makefile
1891 lustre/mdd/autoMakefile
1892 lustre/fld/Makefile
1893 lustre/fld/autoMakefile
1894 lustre/obdclass/Makefile
1895 lustre/obdclass/autoMakefile
1896 lustre/obdclass/linux/Makefile
1897 lustre/obdecho/Makefile
1898 lustre/obdecho/autoMakefile
1899 lustre/obdfilter/Makefile
1900 lustre/obdfilter/autoMakefile
1901 lustre/osc/Makefile
1902 lustre/osc/autoMakefile
1903 lustre/ost/Makefile
1904 lustre/ost/autoMakefile
1905 lustre/osd/Makefile
1906 lustre/osd/autoMakefile
1907 lustre/mgc/Makefile
1908 lustre/mgc/autoMakefile
1909 lustre/mgs/Makefile
1910 lustre/mgs/autoMakefile
1911 lustre/ptlrpc/Makefile
1912 lustre/ptlrpc/autoMakefile
1913 lustre/ptlrpc/gss/Makefile
1914 lustre/ptlrpc/gss/autoMakefile
1915 lustre/quota/Makefile
1916 lustre/quota/autoMakefile
1917 lustre/scripts/Makefile
1918 lustre/scripts/version_tag.pl
1919 lustre/tests/Makefile
1920 lustre/utils/Makefile
1921 lustre/utils/gss/Makefile
1922 ])
1923 case $lb_target_os in
1924         darwin)
1925                 AC_CONFIG_FILES([ lustre/obdclass/darwin/Makefile ])
1926                 ;;
1927 esac
1928
1929 ])