From 4ae45ba0bdc988499e8fd71984b4a0ba65080d81 Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@cryptonomic.net>
Date: Tue, 23 Feb 2021 17:03:19 -0500
Subject: btrfs-shrink will produce file w/ multiple of 4096 bytes

---
 btrfs-shrink | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/btrfs-shrink b/btrfs-shrink
index a9bbee7..12f0e8e 100755
--- a/btrfs-shrink
+++ b/btrfs-shrink
@@ -76,6 +76,11 @@ main()
         rmdir "$mountpoint"
         if [ "$truncate" ]
         then
+            r=$((truncate % 4096))
+            if [ $r -ne 0 ]
+            then
+                truncate=$((truncate + 4096 - r))
+            fi
             truncate -s "$truncate" "$1"
         fi
         return $result
-- 
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