From 055656d4f4dfc1a85646a2c0cc10b9dce86da72b Mon Sep 17 00:00:00 2001
From: Gunnar Beutner <gunnar@beutner.name>
Date: Thu, 28 Apr 2011 18:35:50 +0200
Subject: Implemented NFS export_operations.

Implemented the required NFS operations for exporting ZFS datasets
using the in-kernel NFS daemon.
---
 config/kernel-d-obtain-alias.m4 | 12 ++++++++++++
 config/kernel.m4                |  1 +
 2 files changed, 13 insertions(+)
 create mode 100644 config/kernel-d-obtain-alias.m4

(limited to 'config')

diff --git a/config/kernel-d-obtain-alias.m4 b/config/kernel-d-obtain-alias.m4
new file mode 100644
index 000000000..d80a1c89c
--- /dev/null
+++ b/config/kernel-d-obtain-alias.m4
@@ -0,0 +1,12 @@
+dnl #
+dnl # 2.6.28 API change
+dnl # Added d_obtain_alias() helper function.
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_D_OBTAIN_ALIAS], [
+	ZFS_CHECK_SYMBOL_EXPORT(
+		[d_obtain_alias],
+		[fs/dcache.c],
+		[AC_DEFINE(HAVE_D_OBTAIN_ALIAS, 1,
+		[d_obtain_alias() is available])],
+		[])
+])
diff --git a/config/kernel.m4 b/config/kernel.m4
index f31d93c97..e2a983b54 100644
--- a/config/kernel.m4
+++ b/config/kernel.m4
@@ -35,6 +35,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
 	ZFS_AC_KERNEL_FSYNC_2ARGS
 	ZFS_AC_KERNEL_EVICT_INODE
 	ZFS_AC_KERNEL_INSERT_INODE_LOCKED
+	ZFS_AC_KERNEL_D_OBTAIN_ALIAS
 
 	if test "$LINUX_OBJ" != "$LINUX"; then
 		KERNELMAKE_PARAMS="$KERNELMAKE_PARAMS O=$LINUX_OBJ"
-- 
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