linux-ext3-adds-items-to-struct-inode-and-so-do-we-20010807

[openafs.git] / src / cf / linux-test4.m4

diff --git a/src/cf/linux-test4.m4 b/src/cf/linux-test4.m4
index 1755b31..de9c468 100644 (file)
--- a/src/cf/linux-test4.m4
+++ b/src/cf/linux-test4.m4
@@ -12,3 +12,18 @@ ac_cv_linux_fs_struct_inode_has_i_cdev=yes,
 ac_cv_linux_fs_struct_inode_has_i_cdev=no)])
 AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_cdev)
 CPPFLAGS="$save_CPPFLAGS"])
+
+AC_DEFUN(LINUX_FS_STRUCT_INODE_HAS_I_TRUNCATE_SEM, [
+AC_MSG_CHECKING(for i_truncate_sem in struct inode)
+save_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS="-I${LINUX_KERNEL_PATH}/include -D__KERNEL__ $CPPFLAGS"
+AC_CACHE_VAL(ac_cv_linux_fs_struct_inode_has_i_truncate_sem, 
+[
+AC_TRY_COMPILE(
+[#include <linux/fs.h>],
+[struct inode _inode;
+printf("%d\n", _inode.i_truncate_sem);], 
+ac_cv_linux_fs_struct_inode_has_i_truncate_sem=yes,
+ac_cv_linux_fs_struct_inode_has_i_truncate_sem=no)])
+AC_MSG_RESULT($ac_cv_linux_fs_struct_inode_has_i_truncate_sem)
+CPPFLAGS="$save_CPPFLAGS"])