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migration: force QEMUFile to blocking mode for outgoing migration 

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>
Message-Id: <1461751518-12128-8-git-send-email-berrange@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-04-27 11:04:57 +01:00 committed by Amit Shah
parent 06ad513532
commit 9e4d2b98ee
1 changed files with 1 additions and 0 deletions
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migration/migration.c
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@ -1791,6 +1791,7 @@ 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);