diff options
| -rw-r--r-- | migration/migration.c | 4 | ||||
| -rw-r--r-- | migration/migration.h | 7 |
2 files changed, 10 insertions, 1 deletions
diff --git a/migration/migration.c b/migration/migration.c index 2d306582eb..21b94f75a3 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -2867,6 +2867,7 @@ static int open_return_path_on_source(MigrationState *ms, qemu_thread_create(&ms->rp_state.rp_thread, "return path", source_return_path_thread, ms, QEMU_THREAD_JOINABLE); + ms->rp_state.rp_thread_created = true; trace_open_return_path_on_source_continue(); @@ -2891,6 +2892,7 @@ static int await_return_path_close_on_source(MigrationState *ms) } trace_await_return_path_close_on_source_joining(); qemu_thread_join(&ms->rp_state.rp_thread); + ms->rp_state.rp_thread_created = false; trace_await_return_path_close_on_source_close(); return ms->rp_state.error; } @@ -3170,7 +3172,7 @@ static void migration_completion(MigrationState *s) * it will wait for the destination to send it's status in * a SHUT command). */ - if (s->rp_state.from_dst_file) { + if (s->rp_state.rp_thread_created) { int rp_error; trace_migration_return_path_end_before(); rp_error = await_return_path_close_on_source(s); diff --git a/migration/migration.h b/migration/migration.h index 2ebb740dfa..c302879fad 100644 --- a/migration/migration.h +++ b/migration/migration.h @@ -195,6 +195,13 @@ struct MigrationState { QEMUFile *from_dst_file; QemuThread rp_thread; bool error; + /* + * We can also check non-zero of rp_thread, but there's no "official" + * way to do this, so this bool makes it slightly more elegant. + * Checking from_dst_file for this is racy because from_dst_file will + * be cleared in the rp_thread! + */ + bool rp_thread_created; QemuSemaphore rp_sem; } rp_state; |