@@ -466,7 +466,8 @@ void migration_incoming_process(void)
qemu_coroutine_enter(co);
}
-void migration_fd_process_incoming(QEMUFile *f)
+/* Returns true if recovered from a paused migration, otherwise false */
+static bool postcopy_try_recover(QEMUFile *f)
{
MigrationIncomingState *mis = migration_incoming_get_current();
@@ -491,11 +492,10 @@ void migration_fd_process_incoming(QEMUFile *f)
* that source is ready to reply to page requests.
*/
qemu_sem_post(&mis->postcopy_pause_sem_dst);
- } else {
- /* New incoming migration */
- migration_incoming_setup(f);
- migration_incoming_process();
+ return true;
}
+
+ return false;
}
void migration_ioc_process_incoming(QIOChannel *ioc)
@@ -504,6 +504,9 @@ void migration_ioc_process_incoming(QIOChannel *ioc)
if (!mis->from_src_file) {
QEMUFile *f = qemu_fopen_channel_input(ioc);
+ if (postcopy_try_recover(f)) {
+ return;
+ }
migration_incoming_setup(f);
return;
}
The whole postcopy recovery logic was accidentally broken. We need to fix it in two steps. This is the first step that we should do the recovery when needed. It was bypassed before after commit 36c2f8be2c. Since at it, rename the function migration_fd_process_incoming() into postcopy_try_recover(), and make sure it only contain the recovery logic (we don't need the removed lines any more since that's only used by RDMA before and now RDMA code has got rid of it). Fixes: 36c2f8be2c ("migration: Delay start of migration main routines") Signed-off-by: Peter Xu <peterx@redhat.com> --- migration/migration.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-)