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[v6,for-2.7,07/28] migration: force QEMUFile to blocking mode for outgoing migration

Message ID 1461751518-12128-8-git-send-email-berrange@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Daniel P. Berrangé April 27, 2016, 10:04 a.m. UTC 
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.

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

Comments

Juan Quintela May 4, 2016, 10:49 a.m. UTC | #1 
"Daniel P. Berrange" <berrange@redhat.com> wrote:
> 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.
>
> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

Reviewed-by: Juan Quintela <quintela@redhat.com>
diff mbox

Patch

diff --git a/migration/migration.c b/migration/migration.c
index 10968ef..4732915 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1769,6 +1769,7 @@  void migrate_fd_connect(MigrationState *s)
     s->expected_downtime = max_downtime/1000000;
     s->cleanup_bh = qemu_bh_new(migrate_fd_cleanup, s);
 
+    qemu_file_set_blocking(s->to_dst_file, true);
     qemu_file_set_rate_limit(s->to_dst_file,
                              s->bandwidth_limit / XFER_LIMIT_RATIO);