Re: [PATCH v2 04/22] migration/block-dirty-bitmap: move mutex init to dirty_bitmap_mig_init

[Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>]

On 17/02/2020 18:02, Vladimir Sementsov-Ogievskiy wrote:
> No reasons to keep two public init functions.
> 
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
>   migration/migration.h          | 1 -
>   migration/block-dirty-bitmap.c | 6 +-----
>   migration/migration.c          | 2 --
>   3 files changed, 1 insertion(+), 8 deletions(-)
> 
> diff --git a/migration/migration.h b/migration/migration.h
> index 8473ddfc88..2948f2387b 100644
> --- a/migration/migration.h
> +++ b/migration/migration.h
> @@ -332,7 +332,6 @@ void migrate_send_rp_recv_bitmap(MigrationIncomingState *mis,
>   void migrate_send_rp_resume_ack(MigrationIncomingState *mis, uint32_t value);
>   
>   void dirty_bitmap_mig_before_vm_start(void);
> -void init_dirty_bitmap_incoming_migration(void);
>   void migrate_add_address(SocketAddress *address);
>   
>   int foreach_not_ignored_block(RAMBlockIterFunc func, void *opaque);
> diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c
> index 4e8959ae52..49d4cf8810 100644
> --- a/migration/block-dirty-bitmap.c
> +++ b/migration/block-dirty-bitmap.c
> @@ -148,11 +148,6 @@ typedef struct LoadBitmapState {
>   static GSList *enabled_bitmaps;
>   QemuMutex finish_lock;
>   
> -void init_dirty_bitmap_incoming_migration(void)
> -{
> -    qemu_mutex_init(&finish_lock);
> -}
> -
>   static uint32_t qemu_get_bitmap_flags(QEMUFile *f)
>   {
>       uint8_t flags = qemu_get_byte(f);
> @@ -733,6 +728,7 @@ static SaveVMHandlers savevm_dirty_bitmap_handlers = {
>   void dirty_bitmap_mig_init(void)
>   {
>       QSIMPLEQ_INIT(&dirty_bitmap_mig_state.dbms_list);
> +    qemu_mutex_init(&finish_lock);
>   
>       register_savevm_live("dirty-bitmap", 0, 1,
>                            &savevm_dirty_bitmap_handlers,
> diff --git a/migration/migration.c b/migration/migration.c
> index 8fb68795dc..515047932c 100644
> --- a/migration/migration.c
> +++ b/migration/migration.c
> @@ -158,8 +158,6 @@ void migration_object_init(void)
>       qemu_sem_init(&current_incoming->postcopy_pause_sem_dst, 0);
>       qemu_sem_init(&current_incoming->postcopy_pause_sem_fault, 0);
>   
> -    init_dirty_bitmap_incoming_migration();
> -
>       if (!migration_object_check(current_migration, &err)) {
>           error_report_err(err);
>           exit(1);
> 

I rely on that the mutex initialization is being made in proper time.

Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
-- 
With the best regards,
Andrey Shinkevich