Whamcloud - gitweb
b=19730
[fs/lustre-release.git] / lustre / autoconf / lustre-core.m4
index 6c963ad..bcf509e 100644 (file)
@@ -84,45 +84,6 @@ $2
 ])
 
 #
-# LC_STRUCT_KIOBUF
-#
-# rh 2.4.18 has iobuf->dovary, but other kernels do not
-#
-AC_DEFUN([LC_STRUCT_KIOBUF],
-[AC_MSG_CHECKING([if struct kiobuf has a dovary field])
-LB_LINUX_TRY_COMPILE([
-       #include <linux/iobuf.h>
-],[
-       struct kiobuf iobuf;
-       iobuf.dovary = 1;
-],[
-       AC_MSG_RESULT([yes])
-       AC_DEFINE(HAVE_KIOBUF_DOVARY, 1, [struct kiobuf has a dovary field])
-],[
-       AC_MSG_RESULT([no])
-])
-])
-
-#
-# LC_FUNC_COND_RESCHED
-#
-# cond_resched() was introduced in 2.4.20
-#
-AC_DEFUN([LC_FUNC_COND_RESCHED],
-[AC_MSG_CHECKING([if kernel offers cond_resched])
-LB_LINUX_TRY_COMPILE([
-       #include <linux/sched.h>
-],[
-       cond_resched();
-],[
-       AC_MSG_RESULT([yes])
-       AC_DEFINE(HAVE_COND_RESCHED, 1, [cond_resched found])
-],[
-       AC_MSG_RESULT([no])
-])
-])
-
-#
 # LC_FUNC_RELEASEPAGE_WITH_INT
 #
 # if ->releasepage() takes an int arg in 2.6.9
@@ -141,39 +102,6 @@ else
 fi
 ])
 
-
-#
-# LC_FUNC_ZAP_PAGE_RANGE
-#
-# if zap_page_range() takes a vma arg
-#
-AC_DEFUN([LC_FUNC_ZAP_PAGE_RANGE],
-[AC_MSG_CHECKING([if zap_page_range with vma parameter])
-ZAP_PAGE_RANGE_VMA="`grep -c 'zap_page_range.*struct vm_area_struct' $LINUX/include/linux/mm.h`"
-if test "$ZAP_PAGE_RANGE_VMA" != 0 ; then
-       AC_DEFINE(ZAP_PAGE_RANGE_VMA, 1, [zap_page_range with vma parameter])
-       AC_MSG_RESULT([yes])
-else
-       AC_MSG_RESULT([no])
-fi
-])
-
-#
-# LC_FUNC_PDE
-#
-# if proc_fs.h defines PDE()
-#
-AC_DEFUN([LC_FUNC_PDE],
-[AC_MSG_CHECKING([if kernel defines PDE])
-HAVE_PDE="`grep -c 'proc_dir_entry..PDE' $LINUX/include/linux/proc_fs.h`"
-if test "$HAVE_PDE" != 0 ; then
-       AC_DEFINE(HAVE_PDE, 1, [the kernel defines PDE])
-       AC_MSG_RESULT([yes])
-else
-       AC_MSG_RESULT([no])
-fi
-])
-
 #
 # LC_FUNC_FILEMAP_FDATASYNC
 #
@@ -194,22 +122,6 @@ LB_LINUX_TRY_COMPILE([
 ])
 
 #
-# LC_FUNC_DIRECT_IO
-#
-# if direct_IO takes a struct file argument
-#
-AC_DEFUN([LC_FUNC_DIRECT_IO],
-[AC_MSG_CHECKING([if kernel passes struct file to direct_IO])
-HAVE_DIO_FILE="`grep -c 'direct_IO.*struct file' $LINUX/include/linux/fs.h`"
-if test "$HAVE_DIO_FILE" != 0 ; then
-       AC_DEFINE(HAVE_DIO_FILE, 1, [the kernel passes struct file to direct_IO])
-       AC_MSG_RESULT(yes)
-else
-       AC_MSG_RESULT(no)
-fi
-])
-
-#
 # LC_HEADER_MM_INLINE
 #
 # RHEL kernels define page_count in mm_inline.h
@@ -258,9 +170,9 @@ LB_LINUX_TRY_COMPILE([
 # LC_FUNC_REGISTER_CACHE
 #
 # if register_cache() is defined by kernel
-# 
+#
 # There are two ways to shrink one customized cache in linux kernels. For the
-# kernels are prior than 2.6.5(?), register_cache() is used, and for latest 
+# kernels are prior than 2.6.5(?), register_cache() is used, and for latest
 # kernels, set_shrinker() is used instead.
 #
 AC_DEFUN([LC_FUNC_REGISTER_CACHE],
@@ -342,7 +254,7 @@ LB_LINUX_TRY_COMPILE([
         AC_MSG_RESULT([yes])
         AC_DEFINE(HAVE_DEV_SET_RDONLY, 1, [kernel has new dev_set_rdonly])
 ],[
-        AC_MSG_RESULT([no, Linux kernel source needs to be patches by lustre 
+        AC_MSG_RESULT([no, Linux kernel source needs to be patches by lustre
 kernel patches from Lustre version 1.4.3 or above.])
 ])
 ])
@@ -580,7 +492,7 @@ AC_DEFUN([LC_BIT_SPINLOCK_H],
 #
 # LC_POSIX_ACL_XATTR
 #
-# If we have xattr_acl.h 
+# If we have xattr_acl.h
 #
 AC_DEFUN([LC_XATTR_ACL],
 [LB_CHECK_FILE([$LINUX/include/linux/xattr_acl.h],[
@@ -680,14 +592,6 @@ AC_DEFUN([LC_LUSTRE_VERSION_H],
 ])
 ])
 
-AC_DEFUN([LC_FUNC_SET_FS_PWD],
-[LB_CHECK_SYMBOL_EXPORT([set_fs_pwd],
-[fs/namespace.c],[
-        AC_DEFINE(HAVE_SET_FS_PWD, 1, [set_fs_pwd is exported])
-],[
-])
-])
-
 #
 # LC_CAPA_CRYPTO
 #
@@ -703,6 +607,18 @@ LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],[
 ])
 ])
 
+#
+# LC_CONFIG_RMTCLIENT
+#
+dnl FIXME
+dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
+dnl FIXME
+AC_DEFUN([LC_CONFIG_RMTCLIENT],
+[LB_LINUX_CONFIG_IM([CRYPTO_AES],[],[
+        AC_MSG_WARN([Lustre remote client require that CONFIG_CRYPTO_AES is enabled in your kernel.])
+])
+])
+
 AC_DEFUN([LC_SUNRPC_CACHE],
 [AC_MSG_CHECKING([if sunrpc struct cache_head uses kref])
 LB_LINUX_TRY_COMPILE([
@@ -729,26 +645,24 @@ AC_DEFUN([LC_CONFIG_SUNRPC],
 #
 AC_DEFUN([LC_CONFIG_GSS_KEYRING],
 [AC_MSG_CHECKING([whether to enable gss keyring backend])
- AC_ARG_ENABLE([gss_keyring], 
-              [AC_HELP_STRING([--disable-gss-keyring],
+ AC_ARG_ENABLE([gss_keyring],
+               [AC_HELP_STRING([--disable-gss-keyring],
                                [disable gss keyring backend])],
-              [],[enable_gss_keyring='yes'])
+               [],[enable_gss_keyring='yes'])
  AC_MSG_RESULT([$enable_gss_keyring])
 
  if test x$enable_gss_keyring != xno; then
-       LB_LINUX_CONFIG_IM([KEYS],[],
+        LB_LINUX_CONFIG_IM([KEYS],[],
                            [AC_MSG_ERROR([GSS keyring backend require that CONFIG_KEYS be enabled in your kernel.])])
 
-       AC_CHECK_LIB([keyutils], [keyctl_search], [],
+        AC_CHECK_LIB([keyutils], [keyctl_search], [],
                      [AC_MSG_ERROR([libkeyutils is not found, which is required by gss keyring backend])],)
 
-       AC_DEFINE([HAVE_GSS_KEYRING], [1],
+        AC_DEFINE([HAVE_GSS_KEYRING], [1],
                   [Define this if you enable gss keyring backend])
  fi
 ])
 
-m4_pattern_allow(AC_KERBEROS_V5)
-
 #
 # LC_CONFIG_GSS (default disabled)
 #
@@ -757,48 +671,35 @@ m4_pattern_allow(AC_KERBEROS_V5)
 #
 AC_DEFUN([LC_CONFIG_GSS],
 [AC_MSG_CHECKING([whether to enable gss/krb5 support])
- AC_ARG_ENABLE([gss], 
+ AC_ARG_ENABLE([gss],
                [AC_HELP_STRING([--enable-gss], [enable gss/krb5 support])],
                [],[enable_gss='no'])
  AC_MSG_RESULT([$enable_gss])
 
  if test x$enable_gss == xyes; then
-       LC_CONFIG_GSS_KEYRING
+        LC_CONFIG_GSS_KEYRING
         LC_CONFIG_SUNRPC
 
+        AC_DEFINE([HAVE_GSS], [1], [Define this if you enable gss])
+
         LB_LINUX_CONFIG_IM([CRYPTO_MD5],[],
                            [AC_MSG_WARN([kernel MD5 support is recommended by using GSS.])])
-       LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
+        LB_LINUX_CONFIG_IM([CRYPTO_SHA1],[],
                            [AC_MSG_WARN([kernel SHA1 support is recommended by using GSS.])])
-       LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
+        LB_LINUX_CONFIG_IM([CRYPTO_SHA256],[],
                            [AC_MSG_WARN([kernel SHA256 support is recommended by using GSS.])])
-       LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
+        LB_LINUX_CONFIG_IM([CRYPTO_SHA512],[],
                            [AC_MSG_WARN([kernel SHA512 support is recommended by using GSS.])])
-       LB_LINUX_CONFIG_IM([CRYPTO_WP512],[],
-                           [AC_MSG_WARN([kernel WP512 support is recommended by using GSS.])])
-       LB_LINUX_CONFIG_IM([CRYPTO_ARC4],[],
-                           [AC_MSG_WARN([kernel ARC4 support is recommended by using GSS.])])
-        LB_LINUX_CONFIG_IM([CRYPTO_DES],[],
-                           [AC_MSG_WARN([kernel DES support is recommended by using GSS.])])
-        LB_LINUX_CONFIG_IM([CRYPTO_TWOFISH],[],
-                           [AC_MSG_WARN([kernel TWOFISH support is recommended by using GSS.])])
-        LB_LINUX_CONFIG_IM([CRYPTO_CAST6],[],
-                           [AC_MSG_WARN([kernel CAST6 support is recommended by using GSS.])])
-       dnl FIXME
-       dnl the AES symbol usually tied with arch, e.g. CRYPTO_AES_586
-       dnl FIXME
-       LB_LINUX_CONFIG_IM([CRYPTO_AES],[],
-                           [AC_MSG_WARN([kernel AES support is recommended by using GSS.])])
-
-       AC_CHECK_LIB([gssapi], [gss_init_sec_context],
+
+        AC_CHECK_LIB([gssapi], [gss_init_sec_context],
                      [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssapi"],
                      [AC_CHECK_LIB([gssglue], [gss_init_sec_context],
                                    [GSSAPI_LIBS="$GSSAPI_LDFLAGS -lgssglue"],
                                    [AC_MSG_ERROR([libgssapi or libgssglue is not found, which is required by GSS.])])],)
 
-       AC_SUBST(GSSAPI_LIBS)
+        AC_SUBST(GSSAPI_LIBS)
 
-       AC_KERBEROS_V5
+        AC_KERBEROS_V5
  fi
 ])
 
@@ -908,6 +809,17 @@ LB_LINUX_TRY_COMPILE([
 ])
 ])
 
+# LC_EXPORT_SYNCHRONIZE_RCU
+# after 2.6.12 synchronize_rcu is preferred over synchronize_kernel
+AC_DEFUN([LC_EXPORT_SYNCHRONIZE_RCU],
+[LB_CHECK_SYMBOL_EXPORT([synchronize_rcu],
+[kernel/rcupdate.c],[
+        AC_DEFINE(HAVE_SYNCHRONIZE_RCU, 1,
+                [in 2.6.12 synchronize_rcu preferred over synchronize_kernel])
+],[
+])
+])
+
 # LC_INODE_I_MUTEX
 # after 2.6.15 inode have i_mutex intead of i_sem
 AC_DEFUN([LC_INODE_I_MUTEX],
@@ -929,6 +841,25 @@ LB_LINUX_TRY_COMPILE([
 ])
 ])
 
+# LC_SEQ_LOCK
+# after 2.6.18 seq_file has lock intead of sem
+AC_DEFUN([LC_SEQ_LOCK],
+[AC_MSG_CHECKING([if struct seq_file has lock field])
+LB_LINUX_TRY_COMPILE([
+        #include <linux/seq_file.h>
+],[
+       struct seq_file seq;
+
+       mutex_unlock(&seq.lock);
+],[
+        AC_MSG_RESULT(yes)
+        AC_DEFINE(HAVE_SEQ_LOCK, 1,
+                [after 2.6.18 seq_file has lock intead of sem])
+],[
+        AC_MSG_RESULT(NO)
+])
+])
+
 # LC_DQUOTOFF_MUTEX
 # after 2.6.17 dquote use mutex instead if semaphore
 AC_DEFUN([LC_DQUOTOFF_MUTEX],
@@ -949,7 +880,7 @@ LB_LINUX_TRY_COMPILE([
         AC_MSG_RESULT(no)
 ])
 ])
+
 #
 # LC_STATFS_DENTRY_PARAM
 # starting from 2.6.18 linux kernel uses dentry instead of
@@ -990,7 +921,7 @@ LB_LINUX_TRY_COMPILE([
 ])
 ])
 
-# 
+#
 # LC_INVALIDATEPAGE_RETURN_INT
 # more 2.6 api changes.  return type for the invalidatepage
 # address_space_operation is 'void' in new kernels but 'int' in old
@@ -1040,6 +971,23 @@ LB_LINUX_TRY_COMPILE([
 EXTRA_KCFLAGS="$tmp_flags"
 ])
 
+# inode have i_private field since 2.6.17
+AC_DEFUN([LC_INODE_IPRIVATE],
+[AC_MSG_CHECKING([if inode has a i_private field])
+LB_LINUX_TRY_COMPILE([
+#include <linux/fs.h>
+],[
+       struct inode i;
+       i.i_private = NULL; 
+],[
+       AC_MSG_RESULT(yes)
+       AC_DEFINE(HAVE_INODE_IPRIVATE, 1,
+               [struct inode has i_private field])
+],[
+       AC_MSG_RESULT(no)
+])
+])
+
 # 2.6.19 API changes
 # inode don't have i_blksize field
 AC_DEFUN([LC_INODE_BLKSIZE],
@@ -1048,7 +996,7 @@ LB_LINUX_TRY_COMPILE([
 #include <linux/fs.h>
 ],[
        struct inode i;
-       i.i_blksize = 0; 
+       i.i_blksize = 0;
 ],[
        AC_MSG_RESULT(yes)
        AC_DEFINE(HAVE_INODE_BLKSIZE, 1,
@@ -1086,37 +1034,37 @@ LB_LINUX_TRY_COMPILE([
 EXTRA_KCFLAGS="$tmp_flags"
 ])
 
-# LC_GENERIC_FILE_WRITE
-# 2.6.19 introduce do_sync_write instead of
-# generic_file_write
-AC_DEFUN([LC_GENERIC_FILE_WRITE],
-[AC_MSG_CHECKING([use generic_file_write])
+# LC_FILE_WRITEV
+# 2.6.19 replaced writev with aio_write
+AC_DEFUN([LC_FILE_WRITEV],
+[AC_MSG_CHECKING([writev in fops])
 LB_LINUX_TRY_COMPILE([
         #include <linux/fs.h>
 ],[
-        int result = generic_file_read(NULL, NULL, 0, 0);
+        struct file_operations *fops = NULL;
+        fops->writev = NULL;
 ],[
         AC_MSG_RESULT(yes)
-        AC_DEFINE(HAVE_GENERIC_FILE_WRITE, 1,
-                [use generic_file_write])
+        AC_DEFINE(HAVE_FILE_WRITEV, 1,
+                [use fops->writev])
 ],[
        AC_MSG_RESULT(no)
 ])
 ])
 
 # LC_GENERIC_FILE_READ
-# 2.6.19 need to use do_sync_read instead of
-# generic_file_read
-AC_DEFUN([LC_GENERIC_FILE_READ],
-[AC_MSG_CHECKING([use generic_file_read])
+# 2.6.19 replaced readv with aio_read
+AC_DEFUN([LC_FILE_READV],
+[AC_MSG_CHECKING([readv in fops])
 LB_LINUX_TRY_COMPILE([
         #include <linux/fs.h>
 ],[
-        int result = generic_file_read(NULL, NULL, 0, 0);
+        struct file_operations *fops = NULL;
+        fops->readv = NULL;
 ],[
         AC_MSG_RESULT(yes)
-        AC_DEFINE(HAVE_GENERIC_FILE_READ, 1,
-                [use generic_file_read])
+        AC_DEFINE(HAVE_FILE_READV, 1,
+                [use fops->readv])
 ],[
         AC_MSG_RESULT(no)
 ])
@@ -1140,7 +1088,7 @@ LB_LINUX_TRY_COMPILE([
 ])
 
 # LC_CANCEL_DIRTY_PAGE
-# 2.6.20 introduse cancel_dirty_page instead of 
+# 2.6.20 introduse cancel_dirty_page instead of
 # clear_page_dirty.
 AC_DEFUN([LC_CANCEL_DIRTY_PAGE],
 [AC_MSG_CHECKING([kernel has cancel_dirty_page])
@@ -1233,6 +1181,15 @@ AC_DEFINE(HAVE_TRUNCATE_COMPLETE_PAGE, 1,
 ])
 ])
 
+AC_DEFUN([LC_EXPORT_TRUNCATE_RANGE],
+[LB_CHECK_SYMBOL_EXPORT([truncate_inode_pages_range],
+[mm/truncate.c],[
+AC_DEFINE(HAVE_TRUNCATE_RANGE, 1,
+            [kernel export truncate_inode_pages_range])
+],[
+])
+])
+
 AC_DEFUN([LC_EXPORT_D_REHASH_COND],
 [LB_CHECK_SYMBOL_EXPORT([d_rehash_cond],
 [fs/dcache.c],[
@@ -1269,7 +1226,12 @@ AC_DEFINE(HAVE___D_MOVE, 1,
 ])
 ])
 
-
+#
+# LC_EXPORT_INVALIDATE_MAPPING_PAGES
+#
+# SLES9, RHEL4, RHEL5, vanilla 2.6.24 export invalidate_mapping_pages() but
+# SLES10 2.6.16 does not, for some reason.  For filter cache invalidation.
+#
 AC_DEFUN([LC_EXPORT_INVALIDATE_MAPPING_PAGES],
     [LB_CHECK_SYMBOL_EXPORT([invalidate_mapping_pages], [mm/truncate.c], [
          AC_DEFINE(HAVE_INVALIDATE_MAPPING_PAGES, 1,
@@ -1282,6 +1244,20 @@ AC_DEFUN([LC_EXPORT_INVALIDATE_MAPPING_PAGES],
     ],[])
 ])
 
+#
+# LC_EXPORT_FILEMAP_FDATASYNC_RANGE
+#
+# No standard kernels export this
+#
+AC_DEFUN([LC_EXPORT_FILEMAP_FDATAWRITE_RANGE],
+[LB_CHECK_SYMBOL_EXPORT([filemap_fdatawrite_range],
+[mm/filemap.c],[
+AC_DEFINE(HAVE_FILEMAP_FDATAWRITE_RANGE, 1,
+            [filemap_fdatawrite_range is exported by the kernel])
+],[
+])
+])
+
 # The actual symbol exported varies among architectures, so we need
 # to check many symbols (but only in the current architecture.)  No
 # matter what symbol is exported, the kernel #defines node_to_cpumask
@@ -1329,7 +1305,7 @@ LB_LINUX_TRY_COMPILE([
         int i = unregister_blkdev(0,NULL);
 ],[
         AC_MSG_RESULT([yes])
-        AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1, 
+        AC_DEFINE(HAVE_UNREGISTER_BLKDEV_RETURN_INT, 1,
                 [unregister_blkdev return int])
 ],[
         AC_MSG_RESULT([no])
@@ -1442,13 +1418,13 @@ EXTRA_KCFLAGS="$tmp_flags"
 AC_DEFUN([LC_CONST_ACL_SIZE],
 [AC_MSG_CHECKING([calc acl size])
 tmp_flags="$CFLAGS"
-CFLAGS="$CFLAGS -I $LINUX_OBJ/include $EXTRA_KCFLAGS"
+CFLAGS="$CFLAGS -I$LINUX/include -I$LINUX_OBJ/include -I$LINUX_OBJ/include2 $EXTRA_KCFLAGS"
 AC_TRY_RUN([
 #define __KERNEL__
 #include <linux/autoconf.h>
 #include <linux/types.h>
 #undef __KERNEL__
-// block include 
+// block include
 #define __LINUX_POSIX_ACL_H
 
 # ifdef CONFIG_FS_POSIX_ACL
@@ -1485,14 +1461,16 @@ CFLAGS="$tmp_flags"
 ])
 
 #
-# check for crypto API 
+# check for crypto API
 #
 AC_DEFUN([LC_ASYNC_BLOCK_CIPHER],
 [AC_MSG_CHECKING([if kernel has block cipher support])
 LB_LINUX_TRY_COMPILE([
+        #include <linux/err.h>
         #include <linux/crypto.h>
 ],[
-        int v = CRYPTO_ALG_TYPE_BLKCIPHER;
+        struct crypto_blkcipher *tfm;
+        tfm = crypto_alloc_blkcipher("aes", 0, 0 );
 ],[
         AC_MSG_RESULT([yes])
         AC_DEFINE(HAVE_ASYNC_BLOCK_CIPHER, 1, [kernel has block cipher support])
@@ -1502,6 +1480,42 @@ LB_LINUX_TRY_COMPILE([
 ])
 
 #
+# check for struct hash_desc
+#
+AC_DEFUN([LC_STRUCT_HASH_DESC],
+[AC_MSG_CHECKING([if kernel has struct hash_desc])
+LB_LINUX_TRY_COMPILE([
+        #include <linux/err.h>
+        #include <linux/crypto.h>
+],[
+        struct hash_desc foo;
+],[
+        AC_MSG_RESULT([yes])
+        AC_DEFINE(HAVE_STRUCT_HASH_DESC, 1, [kernel has struct hash_desc])
+],[
+        AC_MSG_RESULT([no])
+])
+])
+
+#
+# check for struct blkcipher_desc
+#
+AC_DEFUN([LC_STRUCT_BLKCIPHER_DESC],
+[AC_MSG_CHECKING([if kernel has struct blkcipher_desc])
+LB_LINUX_TRY_COMPILE([
+        #include <linux/err.h>
+        #include <linux/crypto.h>
+],[
+        struct blkcipher_desc foo;
+],[
+        AC_MSG_RESULT([yes])
+        AC_DEFINE(HAVE_STRUCT_BLKCIPHER_DESC, 1, [kernel has struct blkcipher_desc])
+],[
+        AC_MSG_RESULT([no])
+])
+])
+
+#
 # check for FS_RENAME_DOES_D_MOVE flag
 #
 AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
@@ -1518,6 +1532,45 @@ LB_LINUX_TRY_COMPILE([
 ])
 ])
 
+# vfs_symlink seems to have started out with 3 args until 2.6.7 where a
+# "mode" argument was added, but then again, in some later version it was
+# removed
+AC_DEFUN([LC_4ARGS_VFS_SYMLINK],
+[AC_MSG_CHECKING([if vfs_symlink wants 4 args])
+LB_LINUX_TRY_COMPILE([
+       #include <linux/fs.h>
+],[
+       struct inode *dir;
+       struct dentry *dentry;
+       const char *oldname = NULL;
+       int mode = 0;
+
+       vfs_symlink(dir, dentry, oldname, mode);
+],[
+        AC_MSG_RESULT(yes)
+        AC_DEFINE(HAVE_4ARGS_VFS_SYMLINK, 1,
+                  [vfs_symlink wants 4 args])
+],[
+        AC_MSG_RESULT(no)
+])
+])
+
+# Ensure stack size big than 8k in Lustre server
+AC_DEFUN([LC_STACK_SIZE],
+[AC_MSG_CHECKING([stack size big than 8k])
+LB_LINUX_TRY_COMPILE([
+       #include <linux/thread_info.h>
+],[
+        #if THREAD_SIZE < 8192
+        #error "stack size < 8192"
+        #endif
+],[
+        AC_MSG_RESULT(yes)
+],[
+        AC_MSG_ERROR([Lustre requires that Linux is configured with at least a 8KB stack.])
+])
+])
+
 #
 # LC_PROG_LINUX
 #
@@ -1527,30 +1580,27 @@ AC_DEFUN([LC_PROG_LINUX],
          [LC_LUSTRE_VERSION_H
          if test x$enable_server = xyes ; then
              AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
+             LC_STACK_SIZE
              LC_CONFIG_BACKINGFS
          fi
          LC_CONFIG_PINGER
          LC_CONFIG_CHECKSUM
          LC_CONFIG_LIBLUSTRE_RECOVERY
-         LC_CONFIG_QUOTA
          LC_CONFIG_HEALTH_CHECK_WRITE
          LC_CONFIG_LRU_RESIZE
+         LC_QUOTA_MODULE
 
          LC_TASK_PPTR
          # RHEL4 patches
          LC_EXPORT_TRUNCATE_COMPLETE
+         LC_EXPORT_TRUNCATE_RANGE
          LC_EXPORT_D_REHASH_COND
          LC_EXPORT___D_REHASH
          LC_EXPORT_D_MOVE_LOCKED
          LC_EXPORT___D_MOVE
          LC_EXPORT_NODE_TO_CPUMASK
 
-         LC_STRUCT_KIOBUF
-         LC_FUNC_COND_RESCHED
          LC_FUNC_RELEASEPAGE_WITH_INT
-         LC_FUNC_ZAP_PAGE_RANGE
-         LC_FUNC_PDE
-         LC_FUNC_DIRECT_IO
          LC_HEADER_MM_INLINE
          LC_STRUCT_INODE
          LC_FUNC_REGISTER_CACHE
@@ -1570,8 +1620,8 @@ AC_DEFUN([LC_PROG_LINUX],
 
          LC_STRUCT_INTENT_FILE
 
-         LC_FUNC_SET_FS_PWD
          LC_CAPA_CRYPTO
+         LC_CONFIG_RMTCLIENT
          LC_CONFIG_GSS
          LC_FUNC_MS_FLOCK_LOCK
          LC_FUNC_HAVE_CAN_SLEEP_ARG
@@ -1580,6 +1630,8 @@ AC_DEFUN([LC_PROG_LINUX],
          LC_COOKIE_FOLLOW_LINK
          LC_FUNC_RCU
          LC_PERCPU_COUNTER
+         LC_QUOTA64
+         LC_4ARGS_VFS_SYMLINK
 
          # does the kernel have VFS intent patches?
          LC_VFS_INTENT_PATCHES
@@ -1590,6 +1642,7 @@ AC_DEFUN([LC_PROG_LINUX],
 
          # 2.6.12
          LC_RW_TREE_LOCK
+         LC_EXPORT_SYNCHRONIZE_RCU
 
          # 2.6.15
          LC_INODE_I_MUTEX
@@ -1598,6 +1651,7 @@ AC_DEFUN([LC_PROG_LINUX],
          LC_SECURITY_PLUG  # for SLES10 SP2
 
          # 2.6.17
+         LC_INODE_IPRIVATE
          LC_DQUOTOFF_MUTEX
 
          # 2.6.18
@@ -1606,6 +1660,8 @@ AC_DEFUN([LC_PROG_LINUX],
          LC_VFS_KERN_MOUNT
          LC_INVALIDATEPAGE_RETURN_INT
          LC_UMOUNTBEGIN_HAS_VFSMOUNT
+         LC_SEQ_LOCK
+         LC_EXPORT_FILEMAP_FDATAWRITE_RANGE
          if test x$enable_server = xyes ; then
                 LC_EXPORT_INVALIDATE_MAPPING_PAGES
          fi
@@ -1617,18 +1673,20 @@ AC_DEFUN([LC_PROG_LINUX],
          # 2.6.19
          LC_INODE_BLKSIZE
          LC_VFS_READDIR_U64_INO
-         LC_GENERIC_FILE_READ
-         LC_GENERIC_FILE_WRITE
+         LC_FILE_WRITEV
+         LC_FILE_READV
 
          # 2.6.20
          LC_CANCEL_DIRTY_PAGE
 
          # raid5-zerocopy patch
          LC_PAGE_CONSTANT
-                 
+
         # 2.6.22
          LC_INVALIDATE_BDEV_2ARG
          LC_ASYNC_BLOCK_CIPHER
+         LC_STRUCT_HASH_DESC
+         LC_STRUCT_BLKCIPHER_DESC
          LC_FS_RENAME_DOES_D_MOVE
          # 2.6.23
          LC_UNREGISTER_BLKDEV_RETURN_INT
@@ -1695,46 +1753,48 @@ fi
 # --enable-mpitest
 #
 AC_ARG_ENABLE(mpitests,
-       AC_HELP_STRING([--enable-mpitest=yes|no|mpich directory],
+       AC_HELP_STRING([--enable-mpitests=yes|no|mpicc wrapper],
                            [include mpi tests]),
        [
         enable_mpitests=yes
          case $enableval in
          yes)
-               MPI_ROOT=/opt/mpich
-               LDFLAGS="$LDFLAGS -L$MPI_ROOT/ch-p4/lib -L$MPI_ROOT/ch-p4/lib64"
-               CFLAGS="$CFLAGS -I$MPI_ROOT/include"
+               MPICC_WRAPPER=mpicc
                ;;
          no)
                enable_mpitests=no
                ;;
-        [[\\/$]]* | ?:[[\\/]]* )
-               MPI_ROOT=$enableval
-               LDFLAGS="$LDFLAGS -L$with_mpi/lib"
-               CFLAGS="$CFLAGS -I$MPI_ROOT/include"
-                ;;
          *)
-                 AC_MSG_ERROR([expected absolute directory name for --enable-mpitests or yes or no])
+               MPICC_WRAPPER=$enableval
                  ;;
         esac
        ],
        [
-       MPI_ROOT=/opt/mpich
-        LDFLAGS="$LDFLAGS -L$MPI_ROOT/ch-p4/lib -L$MPI_ROOT/ch-p4/lib64"
-        CFLAGS="$CFLAGS -I$MPI_ROOT/include"
+       MPICC_WRAPPER=mpicc
        enable_mpitests=yes
        ]
 )
-AC_SUBST(MPI_ROOT)
 
 if test x$enable_mpitests != xno; then
-       AC_MSG_CHECKING([whether to mpitests can be built])
-        AC_CHECK_FILE([$MPI_ROOT/include/mpi.h],
-                      [AC_CHECK_LIB([mpich],[MPI_Start],[enable_mpitests=yes],[enable_mpitests=no])],
-                      [enable_mpitests=no])
+       AC_MSG_CHECKING([whether mpitests can be built])
+       oldcc=$CC
+       CC=$MPICC_WRAPPER
+       AC_LINK_IFELSE(
+           [AC_LANG_PROGRAM([[
+                   #include <mpi.h>
+               ]],[[
+                   int flag;
+                   MPI_Initialized(&flag);
+               ]])],
+           [
+                   AC_MSG_RESULT([yes])
+           ],[
+                   AC_MSG_RESULT([no])
+                   enable_mpitests=no
+       ])
+       CC=$oldcc
 fi
-AC_MSG_RESULT([$enable_mpitests])
-
+AC_SUBST(MPICC_WRAPPER)
 
 AC_MSG_NOTICE([Enabling Lustre configure options for libsysio])
 ac_configure_args="$ac_configure_args --with-lustre-hack --with-sockets"
@@ -1745,7 +1805,7 @@ LC_CONFIG_LIBLUSTRE_RECOVERY
 
 AC_DEFUN([LC_CONFIG_LRU_RESIZE],
 [AC_MSG_CHECKING([whether to enable lru self-adjusting])
-AC_ARG_ENABLE([lru_resize], 
+AC_ARG_ENABLE([lru_resize],
        AC_HELP_STRING([--enable-lru-resize],
                        [enable lru resize support]),
        [],[enable_lru_resize='yes'])
@@ -1758,52 +1818,37 @@ fi
 #
 # LC_CONFIG_QUOTA
 #
-# whether to enable quota support
+# whether to enable quota support global control
 #
 AC_DEFUN([LC_CONFIG_QUOTA],
-[AC_ARG_ENABLE([quota], 
+[AC_ARG_ENABLE([quota],
        AC_HELP_STRING([--enable-quota],
                        [enable quota support]),
-       [],[enable_quota='default'])
-if test x$linux25 != xyes; then
-       enable_quota='no'
-fi
-LB_LINUX_CONFIG([QUOTA],[
-       if test x$enable_quota = xdefault; then
-               enable_quota='yes'
-       fi
-],[
-       if test x$enable_quota = xdefault; then
-               enable_quota='no'
-               AC_MSG_WARN([quota is not enabled because the kernel lacks quota support])
-       else
-               if test x$enable_quota = xyes; then
-                       AC_MSG_ERROR([cannot enable quota because the kernel lacks quota support])
-               fi
-       fi
+       [],[enable_quota='yes'])
 ])
-if test x$enable_quota != xno; then
+
+# whether to enable quota support(kernel modules)
+AC_DEFUN([LC_QUOTA_MODULE],
+[if test x$enable_quota != xno; then
+    LB_LINUX_CONFIG([QUOTA],[
+       enable_quota_module='yes'
        AC_DEFINE(HAVE_QUOTA_SUPPORT, 1, [Enable quota support])
+    ],[
+       enable_quota_module='no'
+       AC_MSG_WARN([quota is not enabled because the kernel - lacks quota support])
+    ])
 fi
 ])
 
-#
-# LC_CONFIG_SPLIT
-#
-# whether to enable split support
-#
-AC_DEFUN([LC_CONFIG_SPLIT],
-[AC_MSG_CHECKING([whether to enable split support])
-AC_ARG_ENABLE([split], 
-       AC_HELP_STRING([--enable-split],
-                       [enable split support]),
-       [],[enable_split='no'])
-AC_MSG_RESULT([$enable_split])
-if test x$enable_split != xno; then
-   AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
-fi
+AC_DEFUN([LC_QUOTA],
+[#check global
+LC_CONFIG_QUOTA
+#check for utils
+AC_CHECK_HEADER(sys/quota.h,
+                [AC_DEFINE(HAVE_SYS_QUOTA_H, 1, [Define to 1 if you have <sys/quota.h>.])],
+                [AC_MSG_ERROR([don't find <sys/quota.h> in your system])])
 ])
+
 AC_DEFUN([LC_QUOTA_READ],
 [AC_MSG_CHECKING([if kernel supports quota_read])
 LB_LINUX_TRY_COMPILE([
@@ -1820,6 +1865,23 @@ LB_LINUX_TRY_COMPILE([
 ])
 
 #
+# LC_CONFIG_SPLIT
+#
+# whether to enable split support
+#
+AC_DEFUN([LC_CONFIG_SPLIT],
+[AC_MSG_CHECKING([whether to enable split support])
+AC_ARG_ENABLE([split],
+       AC_HELP_STRING([--enable-split],
+                       [enable split support]),
+       [],[enable_split='no'])
+AC_MSG_RESULT([$enable_split])
+if test x$enable_split != xno; then
+   AC_DEFINE(HAVE_SPLIT_SUPPORT, 1, [enable split support])
+fi
+])
+
+#
 # LC_COOKIE_FOLLOW_LINK
 #
 # kernel 2.6.13+ ->follow_link returns a cookie
@@ -1846,7 +1908,7 @@ LB_LINUX_TRY_COMPILE([
 #
 # LC_FUNC_RCU
 #
-# kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE), 
+# kernels prior than 2.6.0(?) have no RCU supported; in kernel 2.6.5(SUSE),
 # call_rcu takes three parameters.
 #
 AC_DEFUN([LC_FUNC_RCU],
@@ -1867,15 +1929,40 @@ LB_LINUX_TRY_COMPILE([
                 AC_DEFINE(HAVE_CALL_RCU_PARAM, 1, [call_rcu takes three parameters])
                 AC_MSG_RESULT([yes])
         ],[
-                AC_MSG_RESULT([no]) 
+                AC_MSG_RESULT([no])
         ])
 ],[
         AC_MSG_RESULT([no])
 ])
 ])
 
+#
+# LC_QUOTA64
+# linux kernel have 64-bit limits support
+#
+AC_DEFUN([LC_QUOTA64],
+[if test x$enable_quota_module = xyes -a x$enable_server = xyes ; then
+        AC_MSG_CHECKING([if kernel has 64-bit quota limits support])
+        LB_LINUX_TRY_COMPILE([
+                #include <linux/kernel.h>
+                #include <linux/fs.h>
+                #include <linux/quotaio_v2.h>
+                int versions[] = V2_INITQVERSIONS_R1;
+                struct v2_disk_dqblk_r1 dqblk_r1;
+        ],[],[
+                AC_DEFINE(HAVE_QUOTA64, 1, [have quota64])
+                AC_MSG_RESULT([yes])
+        ],[
+                LB_CHECK_FILE([$LINUX/include/linux/lustre_version.h],[
+                        AC_MSG_ERROR([You have got no 64-bit kernel quota support.])
+                ],[])
+                AC_MSG_RESULT([no])
+        ])
+fi
+])
+
 # LC_SECURITY_PLUG  # for SLES10 SP2
-# check security plug in sles10 sp2 kernel 
+# check security plug in sles10 sp2 kernel
 AC_DEFUN([LC_SECURITY_PLUG],
 [AC_MSG_CHECKING([If kernel has security plug support])
 LB_LINUX_TRY_COMPILE([
@@ -2026,7 +2113,7 @@ AM_CONDITIONAL(LIBLUSTRE_TESTS, test x$enable_liblustre_tests = xyes)
 AM_CONDITIONAL(MPITESTS, test x$enable_mpitests = xyes, Build MPI Tests)
 AM_CONDITIONAL(CLIENT, test x$enable_client = xyes)
 AM_CONDITIONAL(SERVER, test x$enable_server = xyes)
-AM_CONDITIONAL(QUOTA, test x$enable_quota = xyes)
+AM_CONDITIONAL(QUOTA, test x$enable_quota_module = xyes)
 AM_CONDITIONAL(SPLIT, test x$enable_split = xyes)
 AM_CONDITIONAL(BLKID, test x$ac_cv_header_blkid_blkid_h = xyes)
 AM_CONDITIONAL(EXT2FS_DEVEL, test x$ac_cv_header_ext2fs_ext2fs_h = xyes)
@@ -2063,8 +2150,10 @@ lustre/fid/Makefile
 lustre/fid/autoMakefile
 lustre/liblustre/Makefile
 lustre/liblustre/tests/Makefile
+lustre/liblustre/tests/mpi/Makefile
 lustre/llite/Makefile
 lustre/llite/autoMakefile
+lustre/lclient/Makefile
 lustre/lov/Makefile
 lustre/lov/autoMakefile
 lustre/lvfs/Makefile
@@ -2109,6 +2198,7 @@ lustre/quota/autoMakefile
 lustre/scripts/Makefile
 lustre/scripts/version_tag.pl
 lustre/tests/Makefile
+lustre/tests/mpi/Makefile
 lustre/utils/Makefile
 lustre/utils/gss/Makefile
 ])