From c2801d093829e3b87ec4c6d7054b43bad4bd59ad Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Thu, 20 Oct 2011 11:14:10 +0200
Subject: [PATCH] 99base/dracut-lib.sh: add /etc/cmdline/*.conf parsing

modules and overlay images can set default kernel command line
parameters in /etc/cmdline/*.conf in the initramfs.
---
 dracut.kernel.7.xml            |    8 ++++++++
 modules.d/99base/dracut-lib.sh |    9 ++++++++-
 2 files changed, 16 insertions(+), 1 deletions(-)

diff --git a/dracut.kernel.7.xml b/dracut.kernel.7.xml
index 8d50d94..2ba0570 100644
--- a/dracut.kernel.7.xml
+++ b/dracut.kernel.7.xml
@@ -1268,6 +1268,14 @@ set in the configuration files.</para>
           <para>Can contain additional command line options.</para>
         </listitem>
       </varlistentry>
+      <varlistentry>
+        <term>
+          <filename>/etc/cmdline.d/*.conf</filename>
+        </term>
+        <listitem>
+          <para>Can contain additional command line options.</para>
+        </listitem>
+      </varlistentry>
     </variablelist>
   </refsect1>
   <refsect1>
diff --git a/modules.d/99base/dracut-lib.sh b/modules.d/99base/dracut-lib.sh
index 2cfaf93..8d294ee 100755
--- a/modules.d/99base/dracut-lib.sh
+++ b/modules.d/99base/dracut-lib.sh
@@ -32,6 +32,7 @@ str_replace() {
 
 _getcmdline() {
     local _line
+    local _i
     unset _line
     if [ -z "$CMDLINE" ]; then
         if [ -e /etc/cmdline ]; then
@@ -39,8 +40,14 @@ _getcmdline() {
                 CMDLINE_ETC="$CMDLINE_ETC $_line";
             done </etc/cmdline;
         fi
+        for _i in /etc/cmdline.d/*.conf; do
+            [ -e "$_i" ] || continue
+            while read -r _line; do
+                CMDLINE_ETC_D="$CMDLINE_ETC_D $_line";
+            done <"$_i";
+        done
         read -r CMDLINE </proc/cmdline;
-        CMDLINE="$CMDLINE $CMDLINE_ETC"
+        CMDLINE="$CMDLINE_ETC_D $CMDLINE_ETC $CMDLINE"
     fi
 }