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authorIan Reinhart Geiser <igeiser@devonit.com>2013-02-03 14:17:02 -0500
committerRichard Purdie <richard.purdie@linuxfoundation.org>2013-02-04 12:45:48 +0000
commitce690659ef797bd26dc2be59167aa01744841510 (patch)
tree4ba368e9f74b26b2fb00cb0fae2102ad94736ccd /meta/recipes-core/initrdscripts
parentddbd713293929d361a7ec7f8f1eb2986b7adc729 (diff)
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initramds-framework: add shutdown hook for udev
In cases where other initramfs modules need to rely on udev running (ie in my case I have to load firmware on a device that is slow to start) there needs to be a way to keep it running during the lifecycle of the initramfs but still be shut down before swith_root is called. I added a module_pre_hook that will shut down udev before the finish module is called. Signed-off-by: Ian Reinhart Geiser <igeiser@devonit.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-core/initrdscripts')
-rw-r--r--meta/recipes-core/initrdscripts/initramfs-framework/udev12
1 files changed, 10 insertions, 2 deletions
diff --git a/meta/recipes-core/initrdscripts/initramfs-framework/udev b/meta/recipes-core/initrdscripts/initramfs-framework/udev
index 7fbcc61d9cf..50c934993d2 100644
--- a/meta/recipes-core/initrdscripts/initramfs-framework/udev
+++ b/meta/recipes-core/initrdscripts/initramfs-framework/udev
@@ -2,6 +2,14 @@
# Copyright (C) 2011, 2012 O.S. Systems Software LTDA.
# Licensed on MIT
+udev_shutdown_hook_handler() {
+ status=$1
+ module=$2
+ if [ "$status" = "pre" ] && [ "$module" = "finish" ]; then
+ killall `basename $_UDEV_DAEMON` 2>/dev/null
+ fi
+}
+
udev_daemon() {
OPTIONS="/sbin/udevd /lib/udev/udevd /lib/systemd/systemd-udevd"
@@ -27,11 +35,11 @@ udev_enabled() {
}
udev_run() {
+ add_module_pre_hook "udev_shutdown_hook_handler"
+
mkdir -p /run
$_UDEV_DAEMON --daemon
udevadm trigger --action=add
udevadm settle
-
- killall `basename $_UDEV_DAEMON` 2>/dev/null
}