Re: [RFC PATCH v2 6/6] USB: forbid memory allocation with I/O duringbus reset

[Ming Lei]

On Mon, Oct 22, 2012 at 10:37 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
> On Mon, 22 Oct 2012, Ming Lei wrote:

>>
>> +     /*
>> +      * Don't allocate memory with GFP_KERNEL in current
>> +      * context to avoid possible deadlock if usb mass
>> +      * storage interface or usbnet interface(iSCSI case)
>> +      * is included in current configuration. The easiest
>> +      * approach is to do it for all devices.
>> +      */
>> +     memalloc_noio_save(noio_flag);
>
> Why not check dev->power.memalloc_noio_resume here too?

Yes, we can use the flag here too even though it is introduced
for rutime_resume case.

Thanks,
--
Ming Lei
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