linux/drivers/xen/xenbus
Juergen Gross 37a72b08a3 xen: add "not_essential" flag to struct xenbus_driver
When booting the xenbus driver will wait for PV devices to have
connected to their backends before continuing. The timeout is different
between essential and non-essential devices.

Non-essential devices are identified by their nodenames directly in the
xenbus driver, which requires to update this list in case a new device
type being non-essential is added (this was missed for several types
in the past).

In order to avoid this problem, add a "not_essential" flag to struct
xenbus_driver which can be set to "true" by the respective frontend.

Set this flag for the frontends currently regarded to be not essential
(vkbs and vfb) and use it for testing in the xenbus driver.

Signed-off-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20211022064800.14978-2-jgross@suse.com
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2021-11-23 13:41:29 -06:00
..
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xenbus_client.c drivers/xen/xenbus/xenbus_client.c: fix bugon.cocci warnings 2021-08-30 12:04:53 +02:00
xenbus_comms.c xen: Fix event channel callback via INTX/GSI 2021-01-13 16:12:00 +01:00
xenbus_dev_backend.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xenbus_dev_frontend.c xen/xenbus: fix self-deadlock after killing user process 2019-10-02 16:40:11 -04:00
xenbus_probe_backend.c xenbus/xenbus_backend: Disallow pending watch messages 2020-12-14 10:08:40 +01:00
xenbus_probe_frontend.c xen: add "not_essential" flag to struct xenbus_driver 2021-11-23 13:41:29 -06:00
xenbus_probe.c xen: don't continue xenstore initialization in case of errors 2021-11-16 16:15:42 -06:00
xenbus_xs.c xen/xenbus: Count pending messages for each watch 2020-12-14 10:07:13 +01:00
xenbus.h bus: Make remove callback return void 2021-07-21 11:53:42 +02:00