/usr/src/zfs-0.6.5.6/config/kernel-create-nameidata.m4 is in zfs-dkms 0.6.5.6-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | dnl #
dnl # 3.6 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CREATE_NAMEIDATA], [
AC_MSG_CHECKING([whether iops->create() passes nameidata])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
#ifdef HAVE_MKDIR_UMODE_T
int inode_create(struct inode *inode ,struct dentry *dentry,
umode_t umode, struct nameidata *nidata) { return 0; }
#else
int inode_create(struct inode *inode,struct dentry *dentry,
int umode, struct nameidata * nidata) { return 0; }
#endif
static const struct inode_operations
iops __attribute__ ((unused)) = {
.create = inode_create,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CREATE_NAMEIDATA, 1,
[iops->create() passes nameidata])
],[
AC_MSG_RESULT(no)
])
])
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