discover: add reinit path

Currently, changes to settings doesn't take effect while the discover
server is running. This means we need to reboot for any changes (eg, to
network settings) to take effect.

This change introduces a reinit path. Triggered by a configuration
update, this will cause the device handler to drop all of its devices
(and boot options), and restart the discovery process from the device
sources.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/discover/udev.c b/discover/udev.c
index 320dffd..7db36a7 100644
--- a/discover/udev.c
+++ b/discover/udev.c
@@ -469,3 +469,9 @@ fail_new:
 	talloc_free(udev);
 	return NULL;
 }
+
+void udev_reinit(struct pb_udev *udev)
+{
+	pb_log("udev: reinit requested, starting enumeration\n");
+	udev_enumerate(udev->udev);
+}