mirror_zfs/config/kernel-lookup-nameidata.m4
Yuxuan Shui 8f195a908f Linux 3.6 compat, iops->lookup()
As of Linux commit 00cd8dd3bf95f2cc8435b4cac01d9995635c6d0b the
struct nameidata is no longer passed to iops->lookup.  Instead
only the inamedata->flags are passed.

ZFS like almost all Linux fileystems never made use of this so
only the prototype needs to be wrapped for compatibility.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #873
2012-10-14 13:06:54 -07:00

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dnl #
dnl # 3.6 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_NAMEIDATA], [
AC_MSG_CHECKING([whether iops->lookup() takes struct nameidata])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
],[
struct dentry * (*inode_lookup) (struct inode *,struct dentry *,
struct nameidata *) = NULL;
struct inode_operations iops __attribute__ ((unused)) = {
.lookup = inode_lookup,
};
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_LOOKUP_NAMEIDATA, 1,
[iops->lookup() operation takes nameidata])
],[
AC_MSG_RESULT(no)
])
])