Messages in this thread | | | Date | Tue, 23 Oct 2012 16:44:39 +0800 | Subject | Re: [RFC PATCH v2 6/6] USB: forbid memory allocation with I/O during bus reset | From | Ming Lei <> |
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On Mon, Oct 22, 2012 at 10:37 PM, Alan Stern <stern@rowland.harvard.edu> 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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