From 8cd8820547257299a33b2d1e3ecf7c6241a569b2 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Wed, 13 May 2015 11:49:38 +0200
Subject: [PATCH] use cp --reflink=auto

saves some space, if the destination is on the same filesystem on some
filesystems
---
 50-dracut.install            | 2 +-
 51-dracut-rescue-postinst.sh | 2 +-
 51-dracut-rescue.install     | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/50-dracut.install b/50-dracut.install
index d05abb9a..38e672f7 100755
--- a/50-dracut.install
+++ b/50-dracut.install
@@ -12,7 +12,7 @@ case "$COMMAND" in
         if [[ -f ${INITRD_IMAGE_PREGENERATED} ]]; then
             # we found an initrd at the same place as the kernel
             # use this and don't generate a new one
-            cp "$INITRD_IMAGE_PREGENERATED" "$BOOT_DIR_ABS/initrd" \
+            cp --reflink=auto "$INITRD_IMAGE_PREGENERATED" "$BOOT_DIR_ABS/initrd" \
                 && chown root:root "$BOOT_DIR_ABS/initrd" \
                 && chmod 0600 "$BOOT_DIR_ABS/initrd" \
                 && exit 0
diff --git a/51-dracut-rescue-postinst.sh b/51-dracut-rescue-postinst.sh
index 23158552..67f5b717 100755
--- a/51-dracut-rescue-postinst.sh
+++ b/51-dracut-rescue-postinst.sh
@@ -57,7 +57,7 @@ if [[ ! -f $INITRDFILE ]]; then
 fi
 
 if [[ ! -f $NEW_KERNEL_IMAGE ]]; then
-    cp "$KERNEL_IMAGE" "$NEW_KERNEL_IMAGE"
+    cp --reflink=auto "$KERNEL_IMAGE" "$NEW_KERNEL_IMAGE"
     ((ret+=$?))
 fi
 
diff --git a/51-dracut-rescue.install b/51-dracut-rescue.install
index 9abd9d73..91522184 100755
--- a/51-dracut-rescue.install
+++ b/51-dracut-rescue.install
@@ -71,7 +71,7 @@ case "$COMMAND" in
 
         [[ -d "$BOOT_DIR_ABS" ]] || mkdir -p "$BOOT_DIR_ABS"
 
-        if ! cp "$KERNEL_IMAGE" "$BOOT_DIR_ABS"/linux; then
+        if ! cp --reflink=auto "$KERNEL_IMAGE" "$BOOT_DIR_ABS"/linux; then
             echo "Can't copy '$KERNEL_IMAGE to '$BOOT_DIR_ABS/linux'!" >&2
         fi