From d07c5633db85d7a2a278f3df9c1ad52e60fe002c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Amadeusz=20=C5=BBo=C5=82nowski?= <aidecoe@aidecoe.name>
Date: Sun, 17 Apr 2011 22:29:12 +0200
Subject: [PATCH] Mount tmpfs on /run if directory exists and not already
 mounted.

See https://lwn.net/Articles/436012/ for more information on /run.
---
 sh/init.sh.Linux.in |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/sh/init.sh.Linux.in b/sh/init.sh.Linux.in
index 361de0b..2b44a42 100644
--- a/sh/init.sh.Linux.in
+++ b/sh/init.sh.Linux.in
@@ -91,6 +91,24 @@ if $mountproc; then
 	eend $?
 fi
 
+# Mount tmpfs on /run when directory exists.  /run is used among others
+# by udev and dracut, but they fall back to /dev/.{udev,initramfs} if
+# /run doesn't exists.
+# Read more about /run on LWN.net: https://lwn.net/Articles/436012/
+if [ -d /run ]; then
+	if mountinfo -q /run; then
+		einfo "/run is already mounted, skipping"
+	else
+		ebegin "Mounting /run"
+		if ! fstabinfo --mount /run; then
+			mount -t tmpfs -o mode=0755,nosuid,nodev tmpfs /run
+		fi
+		eend $?
+	fi
+else
+	einfo "/run is not writable directory, not mounting"
+fi
+
 # Try to mount xenfs as early as possible, otherwise rc_sys() will always
 # return RC_SYS_XENU and will think that we are in a domU while it's not.
 if grep -Eq "[[:space:]]+xenfs$" /proc/filesystems; then
-- 
1.7.5.rc1