From 0ec78e98624fb1188fbcda7a396d875ea959ce29 Mon Sep 17 00:00:00 2001
From: Alasdair Kergon <agk@redhat.com>
Date: Thu, 18 Nov 2004 19:49:48 +0000
Subject: [PATCH] Prevent snapshot origin resizing.

---
 WHATS_NEW        | 2 ++
 tools/lvresize.c | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/WHATS_NEW b/WHATS_NEW
index 8224ddada..8e536238a 100644
--- a/WHATS_NEW
+++ b/WHATS_NEW
@@ -1,5 +1,7 @@
 Version 2.00.26 - 
 =====================================
+  Prevent snapshot origin resizing.
+  Improve a vgremove error message.
   Update some man pages.
   Allow y/n with -ae args (exclusive activation).
   Fixes to lvcreate vgname parsing.
diff --git a/tools/lvresize.c b/tools/lvresize.c
index 8ffd2225a..f8ca36c83 100644
--- a/tools/lvresize.c
+++ b/tools/lvresize.c
@@ -180,6 +180,11 @@ static int _lvresize(struct cmd_context *cmd, struct lvresize_params *lp)
 		return ECMD_FAILED;
 	}
 
+	if (lv_is_origin(lv)) {
+		log_error("Snapshot origin volumes cannot be resized yet.");
+		return ECMD_FAILED;
+	}
+
 	alloc = (alloc_policy_t) arg_uint_value(cmd, alloc_ARG, lv->alloc);
 
 	if (lp->size) {