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From: Christoph Hellwig <hch@lst.de>
To: iommu@lists.linux-foundation.org
Cc: Robin Murphy <robin.murphy@arm.com>, id Rientjes <rientjes@google.com>
Subject: dma-direct cleanups
Date: Tue, 19 Oct 2021 14:29:12 +0200	[thread overview]
Message-ID: <20211019122916.2468032-1-hch@lst.de> (raw)

Hi all,

Linus complained about the complex flow in dma_direct_alloc, so this
tries to simplify it a bit, and while I was at it I also made sure that
unencrypted pages never leak back into the page allocator.

Diffstat
 direct.c |  133 +++++++++++++++++++++++++++++++++++----------------------------
 1 file changed, 74 insertions(+), 59 deletions(-)
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             reply	other threads:[~2021-10-19 12:29 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-19 12:29 Christoph Hellwig [this message]
2021-10-19 12:29 ` [PATCH 1/4] dma-direct: factor out dma_set_{de,en}crypted helpers Christoph Hellwig
2021-10-19 19:54   ` David Rientjes via iommu
2021-10-21  6:59     ` Christoph Hellwig
2021-10-19 12:29 ` [PATCH 2/4] dma-direct: leak memory that can't be re-encrypted Christoph Hellwig
2021-10-19 19:56   ` David Rientjes via iommu
2021-10-21  7:22     ` Christoph Hellwig
2021-10-19 12:29 ` [PATCH 3/4] dma-direct: clean up the remapping checks in dma_direct_alloc Christoph Hellwig
2021-10-19 12:29 ` [PATCH 4/4] dma-direct: factor out a helper for DMA_ATTR_NO_KERNEL_MAPPING allocations Christoph Hellwig
2021-10-19 19:57   ` David Rientjes via iommu

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