Linux 3.6 compat, iops->lookup()

[zfs.git] / config / kernel-lookup-nameidata.m4

diff --git a/config/kernel-lookup-nameidata.m4 b/config/kernel-lookup-nameidata.m4
new file mode 100644 (file)
index 0000000..5e30be4
--- /dev/null
+++ b/config/kernel-lookup-nameidata.m4
@@ -0,0 +1,21 @@
+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)
+       ])
+])