[libvirt] [PATCH 4/6] libxl: Add refcnt for args->vm during migration

Marc Hartmayer mhartmay at linux.vnet.ibm.com
Thu Apr 26 11:55:11 UTC 2018


On Tue, Apr 24, 2018 at 02:28 PM +0200, John Ferlan <jferlan at redhat.com> wrote:
> When adding the @vm to the @args for usage during a thread or
> callback, let's add the reference to it at the time of adding to
> ensure nothing else deletes it. The corresponding Unref is then
> added to the Dispose function.
>
> Signed-off-by: John Ferlan <jferlan at redhat.com>
> ---
>  src/libxl/libxl_migration.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/src/libxl/libxl_migration.c b/src/libxl/libxl_migration.c
> index d7b494b392..7fe352306c 100644
> --- a/src/libxl/libxl_migration.c
> +++ b/src/libxl/libxl_migration.c
> @@ -239,6 +239,7 @@ libxlMigrationDstArgsDispose(void *obj)
>
>      libxlMigrationCookieFree(args->migcookie);
>      VIR_FREE(args->socks);
> +    virObjectUnref(args->vm);
>  }
>
>  static int
> @@ -608,7 +609,7 @@ libxlDomainMigrationDstPrepareTunnel3(virConnectPtr dconn,
>          goto error;
>
>      args->conn = dconn;
> -    args->vm = vm;
> +    args->vm = virObjectRef(vm);
>      args->flags = flags;
>      args->migcookie = mig;
>      /* Receive from pipeOut */
> @@ -763,7 +764,7 @@ libxlDomainMigrationDstPrepare(virConnectPtr dconn,
>          goto error;
>
>      args->conn = dconn;
> -    args->vm = vm;
> +    args->vm = virObjectRef(vm);
>      args->flags = flags;
>      args->socks = socks;
>      args->nsocks = nsocks;
> --
> 2.13.6
>
> --
> libvir-list mailing list
> libvir-list at redhat.com
> https://www.redhat.com/mailman/listinfo/libvir-list
>

Reviewed-by: Marc Hartmayer <mhartmay at linux.vnet.ibm.com>

--
Beste Grüße / Kind regards
   Marc Hartmayer

IBM Deutschland Research & Development GmbH
Vorsitzende des Aufsichtsrats: Martina Koederitz
Geschäftsführung: Dirk Wittkopp
Sitz der Gesellschaft: Böblingen
Registergericht: Amtsgericht Stuttgart, HRB 243294





More information about the libvir-list mailing list