Re: [PATCH V3 1/2] block/nbd: extract the common cleanup code

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

04.12.2019 6:12, pannengyuan wrote:
> 
> 
> On 2019/12/4 1:38, Vladimir Sementsov-Ogievskiy wrote:
>> Hi!
>>
>> First, please, when sending more than one patch, create a cover-letter. Also,
>> summarize (in cover letter) what was changed since previous version.
> In previous version, I only send one patch(2/2 in this version), so I
> only add a change summarize in 2/2 patch in this version. should I add a
> summarize in 1/2 patch too if 1/2 patch is a new one?

Yes, something simple like:

01: new patch
02: rebased on 01

(also, If you didn't read https://wiki.qemu.org/Contribute/SubmitAPatch, do it)

> 
>>
>> 29.11.2019 10:25, pannengyuan@huawei.com wrote:
>>> From: PanNengyuan <pannengyuan@huawei.com>
>>
>> Strange line. Check you git preferences. Such line appears (and make sense)
>> when you are sending patches authored by someone else.. But here is your name,
>> the same as in email's From:.
> 
> Thanks for your reminding. I will correct it in next version.
> 
>>
>>>
>>> The BDRVNBDState cleanup code is common in two places, add
>>> nbd_free_bdrvstate_prop() function to do these cleanups (suggested by
>>> Stefano Garzarella).
>>>
>>> Signed-off-by: PanNengyuan <pannengyuan@huawei.com>
>>
>> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>>
>>> ---
>>>    block/nbd.c | 23 +++++++++++++----------
>>>    1 file changed, 13 insertions(+), 10 deletions(-)
>>>
>>> diff --git a/block/nbd.c b/block/nbd.c
>>> index 1239761..5805979 100644
>>> --- a/block/nbd.c
>>> +++ b/block/nbd.c
>>> @@ -94,6 +94,8 @@ typedef struct BDRVNBDState {
>>>    
>>>    static int nbd_client_connect(BlockDriverState *bs, Error **errp);
>>>    
>>> +static void nbd_free_bdrvstate_prop(BDRVNBDState *s);
>>> +
>>>    static void nbd_channel_error(BDRVNBDState *s, int ret)
>>>    {
>>>        if (ret == -EIO) {
>>> @@ -1486,6 +1488,15 @@ static int nbd_client_connect(BlockDriverState *bs, Error **errp)
>>>        }
>>>    }
>>>    
>>> +static void nbd_free_bdrvstate_prop(BDRVNBDState *s)
>>> +{
>>> +    object_unref(OBJECT(s->tlscreds));
>>> +    qapi_free_SocketAddress(s->saddr);
>>> +    g_free(s->export);
>>> +    g_free(s->tlscredsid);
>>> +    g_free(s->x_dirty_bitmap);
>>> +}
>>> +
>>>    /*
>>>     * Parse nbd_open options
>>>     */
>>> @@ -1855,10 +1866,7 @@ static int nbd_process_options(BlockDriverState *bs, QDict *options,
>>>    
>>>     error:
>>>        if (ret < 0) {
>>> -        object_unref(OBJECT(s->tlscreds));
>>> -        qapi_free_SocketAddress(s->saddr);
>>> -        g_free(s->export);
>>> -        g_free(s->tlscredsid);
>>> +        nbd_free_bdrvstate_prop(s);
>>>        }
>>>        qemu_opts_del(opts);
>>>        return ret;
>>> @@ -1937,12 +1945,7 @@ static void nbd_close(BlockDriverState *bs)
>>>        BDRVNBDState *s = bs->opaque;
>>>    
>>>        nbd_client_close(bs);
>>> -
>>> -    object_unref(OBJECT(s->tlscreds));
>>> -    qapi_free_SocketAddress(s->saddr);
>>> -    g_free(s->export);
>>> -    g_free(s->tlscredsid);
>>> -    g_free(s->x_dirty_bitmap);
>>> +    nbd_free_bdrvstate_prop(s);
>>>    }
>>>    
>>>    static int64_t nbd_getlength(BlockDriverState *bs)
>>>
>>
>>
> 


-- 
Best regards,
Vladimir