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
..
export	block: Mark bdrv_first_blk() and bdrv_is_root_node() GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
monitor	block: Mark bdrv_op_is_blocked() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
accounting.c
aio_task.c
amend.c
backup.c	block: Mark bdrv_get_parent_name() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
blkdebug.c
blkio.c
blklogwrites.c
blkreplay.c
blkverify.c
block-backend.c	block: Mark bdrv_op_is_blocked() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
block-copy.c
block-gen.h
block-ram-registrar.c
bochs.c	block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
cloop.c	block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
commit.c	block: Mark bdrv_op_is_blocked() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
copy-before-write.c	block: convert more bdrv_is_allocated* and bdrv_block_status* calls to coroutine versions	2023-10-12 16:31:33 +02:00
copy-before-write.h
copy-on-read.c	block: convert more bdrv_is_allocated* and bdrv_block_status* calls to coroutine versions	2023-10-12 16:31:33 +02:00
copy-on-read.h
coroutines.h
create.c
crypto.c	block: Mark bdrv_amend_options() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
crypto.h
curl.c	block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
dirty-bitmap.c
dmg-bz2.c
dmg-lzfse.c
dmg.c	block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
dmg.h
file-posix.c
file-win32.c
filter-compress.c
gluster.c	block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
graph-lock.c	block: Add assertion for bdrv_graph_wrlock()	2023-10-12 16:31:33 +02:00
io_uring.c
io.c	block: Mark bdrv_parent_cb_resize() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
iscsi-opts.c
iscsi.c	block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
linux-aio.c
meson.build
mirror.c	block: convert more bdrv_is_allocated* and bdrv_block_status* calls to coroutine versions	2023-10-12 16:31:33 +02:00
nbd.c	block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
nfs.c	block: Mark bdrv_refresh_filename() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
null.c
nvme.c
parallels-ext.c
parallels.c	migration: simplify blockers	2023-10-20 08:51:41 +02:00
parallels.h
plug.c
preallocate.c
progress_meter.c
qapi-sysemu.c	block: Mark bdrv_op_is_blocked() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
qapi.c	block: Mark bdrv_refresh_filename() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
qcow2-bitmap.c	qcow2: Mark check_constraints_on_bitmap() GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
qcow2-cache.c	qcow2: Mark qcow2_signal_corruption() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
qcow2-cluster.c	qcow2: Mark qcow2_signal_corruption() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
qcow2-refcount.c	qcow2: Mark qcow2_signal_corruption() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
qcow2-snapshot.c
qcow2-threads.c
qcow2.c	qcow2: Mark qcow2_inactivate() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
qcow2.h	qcow2: Mark qcow2_signal_corruption() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
qcow.c	migration: simplify blockers	2023-10-20 08:51:41 +02:00
qed-check.c
qed-cluster.c
qed-l2-cache.c
qed-table.c
qed.c
qed.h
quorum.c	block: Mark bdrv_get_parent_name() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
raw-format.c	block: Mark bdrv_refresh_filename() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
rbd.c	block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
replication.c	block: Protect bs->children with graph_lock	2023-10-12 16:31:33 +02:00
reqlist.c
snapshot-access.c
snapshot.c	block: Mark bdrv_get_parent_name() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
ssh.c
stream.c	block: convert more bdrv_is_allocated* and bdrv_block_status* calls to coroutine versions	2023-10-12 16:31:33 +02:00
throttle-groups.c
throttle.c
trace-events
trace.h
vdi.c	migration: simplify blockers	2023-10-20 08:51:41 +02:00
vhdx-endian.c
vhdx-log.c
vhdx.c	migration: simplify blockers	2023-10-20 08:51:41 +02:00
vhdx.h	block: Mark bdrv_refresh_filename() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
vmdk.c	migration: simplify blockers	2023-10-20 08:51:41 +02:00
vpc.c	migration: simplify blockers	2023-10-20 08:51:41 +02:00
vvfat.c	migration: simplify blockers	2023-10-20 08:51:41 +02:00
win32-aio.c
write-threshold.c