From: John Garry <john.garry@huawei.com>
To: Matthew Wilcox <willy@infradead.org>,
Joerg Roedel <joro@8bytes.org>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
Will Deacon <will@kernel.org>,
David Woodhouse <dwmw2@infradead.org>,
Lu Baolu <baolu.lu@linux.intel.com>,
"iommu@lists.linux-foundation.org"
<iommu@lists.linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Robin Murphy <robin.murphy@arm.com>
Subject: Re: [RFC] iommu: Use put_pages_list
Date: Thu, 14 Oct 2021 12:52:31 +0100 [thread overview]
Message-ID: <5e147b84-f048-b5ff-09d6-ceffe4c2364a@huawei.com> (raw)
In-Reply-To: <YWgShKtp+89f1a/J@casper.infradead.org>
On 14/10/2021 12:20, Matthew Wilcox wrote:
> I'm going to keep pinging this patch weekly.
>
> On Thu, Oct 07, 2021 at 07:17:02PM +0100, Matthew Wilcox wrote:
>> ping?
Robin, Were you checking this? You mentioned "I got
side-tracked trying to make io-pgtable use that freelist properly" in
another thread, which seems related.
Thanks,
John
>>
>> On Thu, Sep 30, 2021 at 05:20:42PM +0100, Matthew Wilcox (Oracle) wrote:
>>> page->freelist is for the use of slab. We already have the ability
>>> to free a list of pages in the core mm, but it requires the use of a
>>> list_head and for the pages to be chained together through page->lru.
>>> Switch the iommu code over to using free_pages_list().
>>>
>>> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
>>> ---
>>> drivers/iommu/amd/io_pgtable.c | 99 +++++++++++++++-------------------
>>> drivers/iommu/dma-iommu.c | 11 +---
>>> drivers/iommu/intel/iommu.c | 89 +++++++++++-------------------
>>> include/linux/iommu.h | 3 +-
>>> 4 files changed, 77 insertions(+), 125 deletions(-)
>>>
next prev parent reply other threads:[~2021-10-14 11:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-30 16:20 [RFC] iommu: Use put_pages_list Matthew Wilcox (Oracle)
2021-10-07 18:16 ` Matthew Wilcox
2021-10-14 11:20 ` Matthew Wilcox
2021-10-14 11:52 ` John Garry [this message]
2021-10-14 16:17 ` Robin Murphy
2021-10-14 16:32 ` Matthew Wilcox
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