From 3b19f4af4398d71eb3dd58041d4aff94e05efb6d Mon Sep 17 00:00:00 2001
From: Robert Millan <rmh@debian.org>
Date: Fri, 28 Mar 2014 17:09:50 +0000
Subject: Detection of ZFS volumes (ZVOL)

ZFS volumes (ZVOL) are the ZFS equivalent of Logical Volumes in LVM.

They implement a block device which can be used for swap or legacy
filesystems.

Bug-Debian: http://bugs.debian.org/635384
Forwarded: no
Last-Update: 2011-07-30

Patch-Name: freebsd-zvol.patch
---
 libparted/arch/freebsd.c | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/libparted/arch/freebsd.c b/libparted/arch/freebsd.c
index 4c690e5f..a60b43f8 100644
--- a/libparted/arch/freebsd.c
+++ b/libparted/arch/freebsd.c
@@ -23,6 +23,7 @@
 #include <parted/debug.h>
 
 #include <ctype.h>
+#include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <stdint.h>
@@ -1134,12 +1135,51 @@ _probe_kern_disks ()
 	return 1;
 }
 
+static int
+_probe_zfs_volumes ()
+{
+	DIR*	pool_dir;
+	DIR*	zvol_dir;
+	struct dirent*  pool_dent;
+	struct dirent*	zvol_dent;
+	char            buf[PATH_MAX];
+	struct stat     st;
+
+	pool_dir = opendir ("/dev/zvol");
+	if (!pool_dir)
+		return 0;
+
+	while ((pool_dent = readdir (pool_dir))) {
+		if (strcmp (pool_dent->d_name, ".")  == 0 || strcmp (pool_dent->d_name, "..") == 0)
+			continue;
+
+		snprintf (buf, sizeof (buf), "/dev/zvol/%s", pool_dent->d_name);
+		zvol_dir = opendir (buf);
+
+		while ((zvol_dent = readdir (zvol_dir))) {
+			if (strcmp (zvol_dent->d_name, ".")  == 0 || strcmp (zvol_dent->d_name, "..") == 0)
+				continue;
+
+			snprintf (buf, sizeof (buf), "/dev/zvol/%s/%s", pool_dent->d_name, zvol_dent->d_name);
+			if (stat (buf, &st) != 0)
+				continue;
+			_ped_device_probe (buf);
+		}
+		closedir (zvol_dir);
+	}
+	closedir (pool_dir);
+
+	return 1;
+}
+
 static void
 freebsd_probe_all ()
 {
 	_probe_standard_devices ();
 
 	_probe_kern_disks ();
+
+	_probe_zfs_volumes ();
 }
 
 static char*