diff options
| author | Peter Xu <peterx@redhat.com> | 2018-05-02 18:47:38 +0800 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2018-05-15 22:12:41 +0200 |
| commit | 62df066ffffdbd41b42ca91130611e40fbc53f0b (patch) | |
| tree | b834f0b0dc36054f7a883be9a3a8e10ea66dec32 /migration/migration.h | |
| parent | 3b563c4be01f42d2a4e641d50736bd5ac8e3b15f (diff) | |
migration: introduce lock for to_dst_file
Let's introduce a lock for that QEMUFile since we are going to operate
on it in multiple threads.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180502104740.12123-23-peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'migration/migration.h')
| -rw-r--r-- | migration/migration.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/migration/migration.h b/migration/migration.h index f83f1064b5..8f0c82159b 100644 --- a/migration/migration.h +++ b/migration/migration.h @@ -114,6 +114,12 @@ struct MigrationState QemuThread thread; QEMUBH *cleanup_bh; QEMUFile *to_dst_file; + /* + * Protects to_dst_file pointer. We need to make sure we won't + * yield or hang during the critical section, since this lock will + * be used in OOB command handler. + */ + QemuMutex qemu_file_lock; /* bytes already send at the beggining of current interation */ uint64_t iteration_initial_bytes; |