Branch b1_6

[fs/lustre-release.git] / lustre / autoconf / lustre-core.m4

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 2a8a086..cce0a4b 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -401,16 +401,16 @@ fi
 #
 # LC_CONFIG_HEALTH_CHECK_WRITE
 #
-# Turn off the actual write to the disk
+# Turn on the actual write to the disk
 #
 AC_DEFUN([LC_CONFIG_HEALTH_CHECK_WRITE],
 [AC_MSG_CHECKING([whether to enable a write with the health check])
-AC_ARG_ENABLE([health_write],
-        AC_HELP_STRING([--disable-health_write],
-                        [disable disk writes when doing health check]),
-        [],[enable_health_write='yes'])
+AC_ARG_ENABLE([health-write],
+        AC_HELP_STRING([--enable-health-write],
+                        [enable disk writes when doing health check]),
+        [],[enable_health_write='no'])
 AC_MSG_RESULT([$enable_health_write])
-if test x$enable_health_write != xno ; then
+if test x$enable_health_write == xyes ; then
   AC_DEFINE(USE_HEALTH_CHECK_WRITE, 1, Write when Checking Health)
 fi
 ])
@@ -521,7 +521,7 @@ LB_LINUX_TRY_COMPILE([
         #include <asm/page.h>
         #include <linux/mm.h>
 ],[
-       filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
+       filemap_populate(NULL, 0, 0, __pgprot(0), 0, 0);
 ],[
         AC_MSG_RESULT([yes])
         AC_DEFINE(HAVE_FILEMAP_POPULATE, 1, [Kernel exports filemap_populate])
@@ -614,6 +614,20 @@ $1
 ],[
 AC_MSG_RESULT([no])
 ])
+
+#
+# LC_EXPORT___IGET
+# starting from 2.6.19 linux kernel exports __iget()
+#
+AC_DEFUN([LC_EXPORT___IGET],
+[AC_MSG_CHECKING([if kernel exports __iget])
+       if grep -q "EXPORT_SYMBOL(__iget)" $LINUX/fs/inode.c 2>/dev/null ; then
+               AC_DEFINE(HAVE_EXPORT___IGET, 1, [kernel exports __iget])
+               AC_MSG_RESULT([yes])
+       else
+               AC_MSG_RESULT([no])
+       fi
+])
 ])
 
 AC_DEFUN([LC_LUSTRE_VERSION_H],
@@ -858,7 +872,7 @@ LB_LINUX_TRY_COMPILE([
 
 #
 # LC_VFS_KERN_MOUNT
-# starting from 2.6.18 kernel don`t export do_kern_mount
+# starting from 2.6.18 kernel doesn't export do_kern_mount
 # and want to use vfs_kern_mount instead.
 #
 AC_DEFUN([LC_VFS_KERN_MOUNT],
@@ -927,7 +941,7 @@ EXTRA_KCFLAGS="$tmp_flags"
 ])
 
 # 2.6.19 API changes
-# inode don`t have i_blksize field
+# inode doesn't have i_blksize field
 AC_DEFUN([LC_INODE_BLKSIZE],
 [AC_MSG_CHECKING([inode has i_blksize field])
 LB_LINUX_TRY_COMPILE([
@@ -1009,7 +1023,7 @@ LB_LINUX_TRY_COMPILE([
 ])
 
 # LC_NR_PAGECACHE
-# 2.6.18 don`t export nr_pagecahe
+# 2.6.18 doesn't export nr_pagecahe
 AC_DEFUN([LC_NR_PAGECACHE],
 [AC_MSG_CHECKING([kernel export nr_pagecache])
 LB_LINUX_TRY_COMPILE([
@@ -1083,6 +1097,7 @@ LC_BIT_SPINLOCK_H
 LC_XATTR_ACL
 LC_STRUCT_INTENT_FILE
 LC_POSIX_ACL_XATTR_H
+LC_EXPORT___IGET
 LC_FUNC_SET_FS_PWD
 LC_FUNC_MS_FLOCK_LOCK
 LC_FUNC_HAVE_CAN_SLEEP_ARG