Use sb->s_d_op default dentry operations

[zfs.git] / config / kernel-dentry-operations.m4

diff --git a/config/kernel-dentry-operations.m4 b/config/kernel-dentry-operations.m4
index 5685b7d..dfbea7d 100644 (file)
--- a/config/kernel-dentry-operations.m4
+++ b/config/kernel-dentry-operations.m4
@@ -62,3 +62,22 @@ AC_DEFUN([ZFS_AC_KERNEL_D_SET_D_OP],
                AC_MSG_RESULT(no)
        ])
 ])
+
+dnl #
+dnl # 2.6.38 API chage
+dnl # Added sb->s_d_op default dentry_operations member
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_S_D_OP],
+       [AC_MSG_CHECKING([whether super_block has s_d_op])
+       ZFS_LINUX_TRY_COMPILE([
+               #include <linux/fs.h>
+       ],[
+               struct super_block sb __attribute__ ((unused));
+               sb.s_d_op = NULL;
+       ], [
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_S_D_OP, 1, [struct super_block has s_d_op])
+       ], [
+               AC_MSG_RESULT(no)
+       ])
+])