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

[pannengyuan <pannengyuan@huawei.com>]

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?

> 
> 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)
>>
> 
>