Re: [Qemu-devel] [PATCH v3 3/4] usb-mtp: Add support for inotify based file monitoring

[Bandan Das <bsd@redhat.com>]

Gerd Hoffmann <kraxel@redhat.com> writes:

>   Hi,
>
>> +#ifndef __linux__
>> +    return 1;
>> +#endif
>
> Hmm?  Shouldn't the stubs avoid these kinds of #ifdefs?
>
>> -    QLIST_FOREACH(iter, &o->children, list) {
>> +    QLIST_FOREACH_SAFE(iter, &o->children, list, next) {
>>          handles[i++] = iter->handle;
>>      }
>
> No need for SAFE here, you don't change the list.

Isn't the SAFE variant better for the case where a inotify delete event occurs
when we are getting the object handles ?

>> +        if (usb_mtp_inotify_init(s)) {
>> +            fprintf(stderr, "usb-mtp: file monitoring init failed\n");
>> +        }
>
> I guess we want a function/macro here for linux/non-linux, then report
> errors on linux only.  Reporting inotify failures on systems which don't
> support inotify in the first place is just noise ...

Agreed, I will rewrite this part.

> cheers,
>   Gerd