From: Christoph Hellwig <hch@infradead.org>
To: Usama Arif <usama.arif@bytedance.com>
Cc: Christoph Hellwig <hch@infradead.org>,
dan.j.williams@intel.com, vishal.l.verma@intel.com,
dave.jiang@intel.com, nvdimm@lists.linux.dev, linux-mm@kvack.org,
linux-fsdevel@vger.kernel.org,
Fam Zheng <fam.zheng@bytedance.com>,
"liangma@liangbit.com" <liangma@liangbit.com>
Subject: Re: [External] Re: Conditions for FOLL_LONGTERM mapping in fsdax
Date: Mon, 27 Nov 2023 06:00:22 -0800 [thread overview]
Message-ID: <ZWSg9vw/nCzOaMLr@infradead.org> (raw)
In-Reply-To: <9867cf7b-29a1-4fc7-61b0-7212268f9d50@bytedance.com>
On Mon, Nov 27, 2023 at 11:52:15AM +0000, Usama Arif wrote:
> By recall do you mean put the LONGTERM pages back? If I removed the check in
> check_vma and allowed the mappings to happen in fsdax, I can see that the
> mappings unmap/unpin in vfio_iommu_type1_unmap_dma later on which eventually
> ends up calling put_pfn.
recall as in stop pinning them on notice from the page owner.
prev parent reply other threads:[~2023-11-27 14:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <172ab047-0dc7-1704-5f30-ec7cd3632e09@bytedance.com>
2023-11-06 18:15 ` Conditions for FOLL_LONGTERM mapping in fsdax Usama Arif
2023-11-20 15:49 ` Usama Arif
2023-11-21 4:46 ` Christoph Hellwig
2023-11-27 11:52 ` [External] " Usama Arif
2023-11-27 14:00 ` Christoph Hellwig [this message]
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