On 19.10.20 03:57, Wei Yang wrote:
> On Mon, Oct 12, 2020 at 02:53:15PM +0200, David Hildenbrand wrote:
>> Let's rename accordingly.
>>
>> Cc: "Michael S. Tsirkin" <m...@redhat.com>
>> Cc: Jason Wang <jasow...@redhat.com>
>> Cc: Pankaj Gupta <pankaj.gupta.li...@gmail.com>
>> Signed-off-by: David Hildenbrand <da...@redhat.com>
>> ---
>> drivers/virtio/virtio_mem.c | 29 +++++++++++++++--------------
>> 1 file changed, 15 insertions(+), 14 deletions(-)
>>
>> diff --git a/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c
>> index 3a772714fec9..d06c8760b337 100644
>> --- a/drivers/virtio/virtio_mem.c
>> +++ b/drivers/virtio/virtio_mem.c
>> @@ -589,8 +589,8 @@ static bool virtio_mem_contains_range(struct virtio_mem 
>> *vm, uint64_t start,
>>      return start >= vm->addr && start + size <= vm->addr + vm->region_size;
>> }
>>
>> -static int virtio_mem_notify_going_online(struct virtio_mem *vm,
>> -                                      unsigned long mb_id)
>> +static int virtio_mem_sbm_notify_going_online(struct virtio_mem *vm,
>> +                                          unsigned long mb_id)
> 
> Look into this patch with "virtio-mem: Big Block Mode (BBM) memory hotplug"
> together, I thought the code is a little "complex".
> 
> The final logic of virtio_mem_memory_notifier_cb() looks like this:
> 
>     virtio_mem_memory_notifier_cb()
>         if (vm->in_sbm)
>           notify_xxx()
>         if (vm->in_sbm)
>           notify_xxx()
> 
> Can we adjust this like
> 
>     virtio_mem_memory_notifier_cb()
>       notify_xxx()
>             if (vm->in_sbm)
>                 return
>       notify_xxx()
>             if (vm->in_sbm)
>                 return
> 
> This style looks a little better to me.

Then we lose all the shared code after any of the mode-specific
handling? Like we have in MEM_OFFLINE, MEM_ONLINE, MEM_CANCEL_OFFLINE, ...

Don't think this will improve the situation.

-- 
Thanks,

David / dhildenb

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