From f201498f9997f8e170eb2181fc1fda97b56bcc4c Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <zkabelac@redhat.com>
Date: Thu, 10 Nov 2011 12:42:36 +0000
Subject: [PATCH] Thin test min thin_pool size for at least 1 chunk

---
 lib/metadata/lv_manip.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/metadata/lv_manip.c b/lib/metadata/lv_manip.c
index 553c80ce9..04ebfc87d 100644
--- a/lib/metadata/lv_manip.c
+++ b/lib/metadata/lv_manip.c
@@ -4102,6 +4102,12 @@ static struct logical_volume *_lv_create_an_lv(struct volume_group *vg, struct l
 		return NULL;
 	}
 
+	if (seg_is_thin_pool(lp) &&
+	    (lp->extents * vg->extent_size < lp->chunk_size)) {
+		log_error("Unable to create thin pool smaller than 1 chunk.");
+		return NULL;
+	}
+
 	if (lp->snapshot && !lp->thin && (lp->extents * vg->extent_size < 2 * lp->chunk_size)) {
 		log_error("Unable to create a snapshot smaller than 2 chunks.");
 		return NULL;