Steve Sistare c8a7fc5179 migration: simplify blockers ... Modify migrate_add_blocker and migrate_del_blocker to take an Error ** reason. This allows migration to own the Error object, so that if an error occurs in migrate_add_blocker, migration code can free the Error and clear the client handle, simplifying client code. It also simplifies the migrate_del_blocker call site. In addition, this is a pre-requisite for a proposed future patch that would add a mode argument to migration requests to support live update, and maintain a list of blockers for each mode. A blocker may apply to a single mode or to multiple modes, and passing Error** will allow one Error object to be registered for multiple modes. No functional change. Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Tested-by: Michael Galaxy <mgalaxy@akamai.com> Reviewed-by: Michael Galaxy <mgalaxy@akamai.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Message-ID: <1697634216-84215-1-git-send-email-steven.sistare@oracle.com>		2023-10-20 08:51:41 +02:00
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bdrv-next-monitor-owned.c
blk-commit-all.c
blk-exp-close-all.c
blockdev-close-all-bdrv-states.c
change-state-handler.c
cmos.c
colo-compare.c
colo.c
cpu-get-clock.c
cpu-synchronize-state.c
cpus-get-virtual-clock.c
dump.c
error-printf.c
fdset.c
fw_cfg.c
gdbstub.c	gdbstub: Introduce GDBFeature structure	2023-10-11 08:46:33 +01:00
get-vm-name.c
graph-lock.c
icount.c
io_uring.c
iothread-lock-block.c
iothread-lock.c
is-daemonized.c
isa-bus.c
linux-aio.c
memory_device.c	memory-device,vhost: Support automatic decision on the number of memslots	2023-10-12 14:15:22 +02:00
meson.build	hw/remote: move stub vfu_object_set_bus_irq out of stubs/	2023-10-18 10:01:01 +02:00
migr-blocker.c	migration: simplify blockers	2023-10-20 08:51:41 +02:00
module-opts.c
monitor-core.c
monitor.c
pci-bus.c
physmem.c
qdev.c
qemu-timer-notify-cb.c
qmp-command-available.c
qmp-quit.c
qtest.c
ram-block.c
ramfb.c	hw/vfio: add ramfb migration support	2023-10-18 10:10:49 +02:00
replay-tools.c
replay.c
runstate-check.c
semihost-all.c
semihost.c	* util/log: re-allow switching away from stderr log file	2023-10-09 10:11:18 -04:00
sysbus.c
target-get-monitor-def.c
target-monitor-defs.c
trace-control.c
usb-dev-stub.c
uuid.c
virtio-md-pci.c
vm-stop.c
vmstate.c
win32-kbd-hook.c
xen-hw-stub.c