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[PATCH 2/3 V2] Add new standard loop handling functions

To: xfs@xxxxxxxxxxx
Subject: [PATCH 2/3 V2] Add new standard loop handling functions
From: Tomas Racek <tracek@xxxxxxxxxx>
Date: Tue, 12 Feb 2013 10:21:59 +0100
Cc: lczerner@xxxxxxxxxx, Tomas Racek <tracek@xxxxxxxxxx>
Delivered-to: xfs@xxxxxxxxxxx
Add _create_loop_device and _destroy_loop_device to uniformly handle
loopback devices.

V1->V2: Fix possible race

Signed-off-by: Tomas Racek <tracek@xxxxxxxxxx>
---
 common.rc | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/common.rc b/common.rc
index 0cccb94..2f4a9f4 100644
--- a/common.rc
+++ b/common.rc
@@ -1833,6 +1833,19 @@ _require_dumpe2fs()
        fi
 }
 
+_create_loop_device()
+{
+       file=$1
+       dev=`losetup -f --show $file` || _fail "Cannot assign $file to a loop 
device"
+       echo $dev
+}
+
+_destroy_loop_device()
+{
+       dev=$1
+       losetup -d $dev || _fail "Cannot destroy loop device $dev"
+}
+
 
################################################################################
 
 if [ "$iam" != new -a "$iam" != bench ]
-- 
1.7.11.7

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