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authorPeter Xu <peterx@redhat.com>2022-07-07 14:55:02 -0400
committerDr. David Alan Gilbert <dgilbert@redhat.com>2022-07-20 12:15:08 +0100
commit36f62f11e44b8a0a653998da100be307ac98704d (patch)
treeca02966b3dfab3f6130de12ceda77a4e63149620 /migration/socket.h
parentce5b0f4afc60124e2fdc81b27ef0de3875bbb9f0 (diff)
migration: Postcopy preemption preparation on channel creation
Create a new socket for postcopy to be prepared to send postcopy requested pages via this specific channel, so as to not get blocked by precopy pages. A new thread is also created on dest qemu to receive data from this new channel based on the ram_load_postcopy() routine. The ram_load_postcopy(POSTCOPY) branch and the thread has not started to function, and that'll be done in follow up patches. Cleanup the new sockets on both src/dst QEMUs, meanwhile look after the new thread too to make sure it'll be recycled properly. Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20220707185502.27149-1-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> dgilbert: With Peter's fix to quieten compiler warning on start_migration
Diffstat (limited to 'migration/socket.h')
-rw-r--r--migration/socket.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/migration/socket.h b/migration/socket.h
index 891dbccceb..dc54df4e6c 100644
--- a/migration/socket.h
+++ b/migration/socket.h
@@ -21,6 +21,7 @@
#include "io/task.h"
void socket_send_channel_create(QIOTaskFunc f, void *data);
+QIOChannel *socket_send_channel_create_sync(Error **errp);
int socket_send_channel_destroy(QIOChannel *send);
void socket_start_incoming_migration(const char *str, Error **errp);