qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [PATCH v7 1/7] qom: apply atomic on object's refcount


From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH v7 1/7] qom: apply atomic on object's refcount
Date: Wed, 28 Nov 2012 09:16:52 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0

On 11/24/2012 06:02 PM, Liu Ping Fan wrote:
> -    obj->ref--;
>  
>      /* parent always holds a reference to its children */
> -    if (obj->ref == 0) {
> +    if (__sync_fetch_and_sub(&obj->ref, 1) == 1) {

  if (__sync_sub_and_fetch(&obj->ref, 1) == 0)


r~



reply via email to

[Prev in Thread] Current Thread [Next in Thread]