From 6b003d7cda153c58bb5faab62c5e5a7aab780715 Mon Sep 17 00:00:00 2001
From: Brian Behlendorf <behlendorf1@llnl.gov>
Date: Thu, 26 Aug 2010 11:55:19 -0700
Subject: Add linux topology support

Solaris recently introduced the idea of drive topology because
where a drive is located does matter.  I have already handled
this with udev/blkid integration under Linux so I'm hopeful
this case can simply be removed but for now I've just stubbed
out what is needed in libspl and commented out the rest here.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
---
 lib/libzfs/include/libzfs_impl.h |  4 ++++
 lib/libzfs/libzfs_fru.c          | 17 +++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/lib/libzfs/include/libzfs_impl.h b/lib/libzfs/include/libzfs_impl.h
index c9b09a205..3d001df07 100644
--- a/lib/libzfs/include/libzfs_impl.h
+++ b/lib/libzfs/include/libzfs_impl.h
@@ -36,7 +36,9 @@
 #include <libzfs.h>
 #include <libshare.h>
 
+#if defined(HAVE_LIBTOPO)
 #include <fm/libtopo.h>
+#endif /* HAVE_LIBTOPO */
 
 #ifdef	__cplusplus
 extern "C" {
@@ -74,9 +76,11 @@ struct libzfs_handle {
 	boolean_t libzfs_mnttab_enable;
 	avl_tree_t libzfs_mnttab_cache;
 	int libzfs_pool_iter;
+#if defined(HAVE_LIBTOPO)
 	topo_hdl_t *libzfs_topo_hdl;
 	libzfs_fru_t **libzfs_fru_hash;
 	libzfs_fru_t *libzfs_fru_list;
+#endif /* HAVE_LIBTOPO */
 	char libzfs_chassis_id[256];
 };
 
diff --git a/lib/libzfs/libzfs_fru.c b/lib/libzfs/libzfs_fru.c
index 788fa2cfb..78f2f9c37 100644
--- a/lib/libzfs/libzfs_fru.c
+++ b/lib/libzfs/libzfs_fru.c
@@ -34,6 +34,8 @@
 
 #include <libzfs.h>
 
+#if defined(HAVE_LIBTOPO)
+
 #include <fm/libtopo.h>
 #include <sys/fm/protocol.h>
 #include <sys/systeminfo.h>
@@ -450,3 +452,18 @@ libzfs_fru_clear(libzfs_handle_t *hdl, boolean_t final)
 		    ZFS_FRU_HASH_SIZE * sizeof (void *));
 	}
 }
+
+#else /* HAVE_LIBTOPO */
+
+/*
+ * Clear memory associated with the FRU hash.
+ */
+void
+libzfs_fru_clear(libzfs_handle_t *hdl, boolean_t final)
+{
+	return;
+}
+
+#endif /* HAVE_LIBTOPO */
+
+
-- 
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