From c0e85ece47f9ef2bce69650a9854fe2a1ea7fb6a Mon Sep 17 00:00:00 2001
From: "kfraser@localhost.localdomain" <kfraser@localhost.localdomain>
Date: Fri, 31 Aug 2007 11:10:21 +0100
Subject: [PATCH] Fix blktap script for versions of readlink command that do
 not handle regular files. Signed-off-by: Ben Guthro <bguthro@virtualiron.com>
 Signed-off-by: Josh Nicholas <jnicholas@virtualiron.com>

---
 tools/examples/blktap | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/examples/blktap b/tools/examples/blktap
index e4ac40b331..b3a0b63544 100644
--- a/tools/examples/blktap
+++ b/tools/examples/blktap
@@ -69,7 +69,13 @@ then
         p=${p#*:}
     fi
 fi
-file=$(readlink -f "$p") || ebusy "$p does not exist."
+# some versions of readlink cannot be passed a regular file
+if [ -L "$p" ]; then
+    file=$(readlink -f "$p") || ebusy "$p link does not exist."
+else
+    [ -f "$p" ] || { ebusy "$p file does not exist." }
+    file="$p"
+fi
 
 if [ "$mode" != '!' ] 
 then
-- 
2.30.2