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Date:   Tue, 21 May 2019 06:27:20 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Oliver Neukum <oneukum@suse.com>
Cc:     Christoph Hellwig <hch@infradead.org>,
        Alan Stern <stern@rowland.harvard.edu>,
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        linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: [RFC PATCH] usb: host: xhci: allow __GFP_FS in dma allocation
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On Tue, May 21, 2019 at 10:54:37AM +0200, Oliver Neukum wrote:
> OK, but this leaves a question open. Will the GFP_NOIO actually
> hurt, if it is used after memalloc_noio_save()?

Unless we have a bug somewhere it should not make any difference,
neither positively nor negatively.