[Qemu-devel] [PATCH FYI 35/46] migration: force QEMUFile to blocking mode for outgoing migration

["Daniel P. Berrange" <berrange@redhat.com>]

Instead of relying on the default QEMUFile I/O blocking flag
state, explicitly turn on blocking I/O for outgoing migration
since it takes place in a background thread.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
---
 migration/migration.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/migration/migration.c b/migration/migration.c
index 83a3960..aa24a7a 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1034,6 +1034,7 @@ void migrate_fd_connect(MigrationState *s)
     s->expected_downtime = max_downtime/1000000;
     s->cleanup_bh = qemu_bh_new(migrate_fd_cleanup, s);
 
+    qemu_fset_blocking(s->file, true);
     qemu_file_set_rate_limit(s->file,
                              s->bandwidth_limit / XFER_LIMIT_RATIO);
 
-- 
2.4.3