[PATCH v2 0/2] xen/xenbus: better handle backend crash

From: Juergen Gross

Date: Wed Feb 18 2026 - 04:52:19 EST


This small series fixes PV-device frontend side handling in case the
backend crashed and has come up again.

The old device will be discarded and the replacement can be used
instead.

Changes in V2:
- fixed one comment related build warning

Juergen Gross (2):
xenbus: add xenbus_device parameter to xenbus_read_driver_state()
xen/xenbus: better handle backend crash

drivers/net/xen-netfront.c | 34 +++++++++---------
drivers/pci/xen-pcifront.c | 8 ++---
drivers/scsi/xen-scsifront.c | 2 +-
drivers/xen/xen-pciback/xenbus.c | 10 +++---
drivers/xen/xenbus/xenbus_client.c | 17 +++++++--
drivers/xen/xenbus/xenbus_probe.c | 42 ++++++++++++++++++++--
drivers/xen/xenbus/xenbus_probe_frontend.c | 2 +-
include/xen/xenbus.h | 4 ++-
8 files changed, 84 insertions(+), 35 deletions(-)

--
2.53.0