linux-kernel - tip/x86/dma fix for arc and s390 (at least)

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Message-Id: <20180328133535.17302-1-hch@lst.de>
Date:   Wed, 28 Mar 2018 15:35:34 +0200
From:   Christoph Hellwig <hch@....de>
To:     x86@...nel.org
Cc:     Evgeniy Didin <Evgeniy.Didin@...opsys.com>,
        Sebastian Ott <sebott@...ux.vnet.ibm.com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: tip/x86/dma fix for arc and s390 (at least)

Hi all,

this restores previous __GFP_ZERO passthrough behavior for now as arc and
s390 rely on it.  Needs more work to sort out the API mess in the long run.