Re: [Qemu-devel] [PATCH 10/11] cpu: do not use object_delete

["Andreas Färber" <afaerber@suse.de>]

Am 05.12.2012 21:44, schrieb Paolo Bonzini:
> CPUs are never added to the composition tree, so delete is achieved
> simply by removing the last references to them.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Reviewed-by: Andreas Färber <afaerber@suse.de>

Note however that x86 is undergoing major changes and other targets are
growing needs to ... "deconstruct" :) CPUs, too. So this is very likely
to conflict. As I understand it, I can't just unparent a CPU today as it
would not get freed?

Andreas

> ---
>  linux-user/syscall.c | 2 +-
>  target-i386/helper.c | 4 ++--
>  target-sparc/cpu.c   | 2 +-
>  3 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index e4291ed..64b2610 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -5188,7 +5188,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
>                          NULL, NULL, 0);
>            }
>            thread_env = NULL;
> -          object_delete(OBJECT(ENV_GET_CPU(cpu_env)));
> +          object_unref(OBJECT(ENV_GET_CPU(cpu_env)));
>            g_free(ts);
>            pthread_exit(NULL);
>        }
> diff --git a/target-i386/helper.c b/target-i386/helper.c
> index bf206cf..d628352 100644
> --- a/target-i386/helper.c
> +++ b/target-i386/helper.c
> @@ -1251,14 +1251,14 @@ X86CPU *cpu_x86_init(const char *cpu_model)
>      env->cpu_model_str = cpu_model;
>  
>      if (cpu_x86_register(cpu, cpu_model) < 0) {
> -        object_delete(OBJECT(cpu));
> +        object_unref(OBJECT(cpu));
>          return NULL;
>      }
>  
>      x86_cpu_realize(OBJECT(cpu), &error);
>      if (error) {
>          error_free(error);
> -        object_delete(OBJECT(cpu));
> +        object_unref(OBJECT(cpu));
>          return NULL;
>      }
>      return cpu;
> diff --git a/target-sparc/cpu.c b/target-sparc/cpu.c
> index 882d306..b38641b 100644
> --- a/target-sparc/cpu.c
> +++ b/target-sparc/cpu.c
> @@ -119,7 +119,7 @@ SPARCCPU *cpu_sparc_init(const char *cpu_model)
>      }
>  
>      if (cpu_sparc_register(env, cpu_model) < 0) {
> -        object_delete(OBJECT(cpu));
> +        object_unref(OBJECT(cpu));
>          return NULL;
>      }
>      qemu_init_vcpu(env);

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