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Re: [Xen-devel] [PATCH 1/4] xen/watchdog: Fold exit paths to have a single unlock


  • To: Jan Beulich <JBeulich@xxxxxxxx>
  • From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • Date: Mon, 13 May 2019 14:51:27 +0100
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  • Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wei.liu2@xxxxxxxxxx>, George Dunlap <George.Dunlap@xxxxxxxxxxxxx>, Pau Ruiz Safont <pau.safont@xxxxxxxxxx>, Julien Grall <julien.grall@xxxxxxx>, Edwin Török <edvin.torok@xxxxxxxxxx>, Christian Lindig <christian.lindig@xxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Roger Pau Monne <roger.pau@xxxxxxxxxx>
  • Delivery-date: Mon, 13 May 2019 13:51:35 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
  • Openpgp: preference=signencrypt

On 13/05/2019 14:47, Jan Beulich wrote:
>>>> On 10.05.19 at 20:28, <andrew.cooper3@xxxxxxxxxx> wrote:
>> --- a/xen/common/schedule.c
>> +++ b/xen/common/schedule.c
>> @@ -1050,6 +1050,8 @@ static void domain_watchdog_timeout(void *data)
>>  
>>  static long domain_watchdog(struct domain *d, uint32_t id, uint32_t timeout)
>>  {
>> +    long rc = 0;
> I'm wondering why this isn't plain int. Not a big deal, but I'm
> curious anyway.

To match the return value.  This function is compiled twice AFAICT.

>
> As per your own response to patch 2 I understand that the
> other patches in this series don#t need looking at until you
> send a v2.

patch 3 is independent of the ABI changes, so fine in principle to
review now.

Patches 2 and 4 will definitely need changing.

~Andrew

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