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| author | Peter Xu <peterx@redhat.com> | 2018-05-02 18:47:22 +0800 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2018-05-15 20:24:27 +0200 |
| commit | 3a7804c3065ac79ff6e609e75ff2765d79f64f85 (patch) | |
| tree | f6e71bb7685a6462714221fe0908132c842122d0 /migration/migration.h | |
| parent | 14b1742eaaad1148c5b421eea0ae7e74d823e630 (diff) | |
| download | qemu-3a7804c3065ac79ff6e609e75ff2765d79f64f85.zip | |
migration: allow fault thread to pause
Allows the fault thread to stop handling page faults temporarily. When
network failure happened (and if we expect a recovery afterwards), we
should not allow the fault thread to continue sending things to source,
instead, it should halt for a while until the connection is rebuilt.
When the dest main thread noticed the failure, it kicks the fault thread
to switch to pause state.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180502104740.12123-7-peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'migration/migration.h')
| -rw-r--r-- | migration/migration.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/migration/migration.h b/migration/migration.h index 32fd50e9be..4ea5949104 100644 --- a/migration/migration.h +++ b/migration/migration.h @@ -76,6 +76,7 @@ struct MigrationIncomingState { /* notify PAUSED postcopy incoming migrations to try to continue */ QemuSemaphore postcopy_pause_sem_dst; + QemuSemaphore postcopy_pause_sem_fault; }; MigrationIncomingState *migration_incoming_get_current(void); |