From: Jason Gunthorpe <jgg@ziepe.ca>
To: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, rientjes@google.com,
dwmw2@infradead.org, baolu.lu@linux.intel.com, joro@8bytes.org,
will@kernel.org, robin.murphy@arm.com, iommu@lists.linux.dev
Subject: Re: [RFC v2 0/3] iommu/intel: Free empty page tables on unmaps
Date: Mon, 29 Apr 2024 11:46:23 -0300 [thread overview]
Message-ID: <20240429144623.GN231144@ziepe.ca> (raw)
In-Reply-To: <ZiwC4snk03ptUQij@casper.infradead.org>
On Fri, Apr 26, 2024 at 08:39:14PM +0100, Matthew Wilcox wrote:
> I think there's a lot of space in the struct page that can be used.
> These are iommu page tables, not cpu page tables, so things are a bit
> different for them. But should they be converted to use ptdesc? Maybe!
Definately! Someday we will need more stuff in here..
Jason
prev parent reply other threads:[~2024-04-29 14:46 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-26 3:43 [RFC v2 0/3] iommu/intel: Free empty page tables on unmaps Pasha Tatashin
2024-04-26 3:43 ` [RFC v2 1/3] iommu/intel: Use page->_mapcount to count number of entries in IOMMU Pasha Tatashin
2024-04-26 3:43 ` [RFC v2 2/3] iommu/intel: synchronize page table map and unmap operations Pasha Tatashin
2024-04-29 14:56 ` Jason Gunthorpe
2024-04-26 3:43 ` [RFC v2 3/3] iommu/intel: free empty page tables on unmaps Pasha Tatashin
2024-04-26 6:42 ` [RFC v2 0/3] iommu/intel: Free " David Hildenbrand
2024-04-26 13:49 ` Pasha Tatashin
2024-04-26 14:39 ` David Hildenbrand
2024-04-26 19:39 ` Matthew Wilcox
2024-04-29 14:46 ` Jason Gunthorpe [this message]
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