linux-kernel - Re: [RFC PATCH 0/5] Prototype for direct map awareness in page allocator

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Message-ID: <ZArb7kwhM3K3CW57@infradead.org>
Date:   Thu, 9 Mar 2023 23:27:42 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Mike Rapoport <rppt@...nel.org>
Cc:     linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Rick Edgecombe <rick.p.edgecombe@...el.com>,
        Song Liu <song@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vlastimil Babka <vbabka@...e.cz>, linux-kernel@...r.kernel.org,
        x86@...nel.org
Subject: Re: [RFC PATCH 0/5] Prototype for direct map awareness in page
 allocator

On Wed, Mar 08, 2023 at 11:41:01AM +0200, Mike Rapoport wrote:
> The last two patches in the series demonstrate how __GFP_UNMAPPED can be
> used in two in-tree use cases.

dma_alloc_attrs(DMA_ATTR_NO_KERNEL_MAPPING) would be another easy one.