From: Pasha Tatashin <pasha.tatashin@soleen.com>
To: "Michal Koutný" <mkoutny@suse.com>
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Subject: Re: [PATCH v3 00/10] IOMMU memory observability
Date: Thu, 4 Jan 2024 11:29:43 -0500 [thread overview]
Message-ID: <CA+CK2bBE1bQuqZy3cbWiv8V3vJ8YNJZRayp6Wv-j2_9i37XT4g@mail.gmail.com> (raw)
In-Reply-To: <eqkpplwwyeqqd356ka3g6isaoboe62zrii77krsb7zwzmvdusr@5i3lzfhpt2xe>
On Thu, Jan 4, 2024 at 10:31 AM Michal Koutný <mkoutny@suse.com> wrote:
>
> Hello.
>
> On Tue, Dec 26, 2023 at 08:01:55PM +0000, Pasha Tatashin <pasha.tatashin@soleen.com> wrote:
> > This patch series solves this problem by adding both observability to
> > all pages that are allocated by IOMMU, and also accountability, so
> > admins can limit the amount if via cgroups.
>
> Maybe this is a mismatch in vocabulary what you mean by the verb
> "limit". But I don't see in the patchset that the offending pages would
> be allocated with GFP_ACCOUNT. So the result is that the pages are
> accounted (you can view the amount in memory.stat) but they are not
> subject to memcg limits.
>
> Is that what you intend?
Hi Michal,
Thank you for taking a look at this. The two patches [1] [2] which add
GFP_KERNEL_ACCOUNT were sent separate from this series at request of
reviewers:
Pasha
[1] https://lore.kernel.org/linux-mm/20231226182827.294158-1-pasha.tatashin@soleen.com
[2] https://lore.kernel.org/linux-mm/20231130200900.2320829-1-pasha.tatashin@soleen.com
>
>
> Regards,
> Michal
next prev parent reply other threads:[~2024-01-04 16:30 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-26 20:01 Pasha Tatashin
2023-12-26 20:01 ` [PATCH v3 01/10] iommu/vt-d: add wrapper functions for page allocations Pasha Tatashin
2023-12-27 0:27 ` David Rientjes
2023-12-26 20:01 ` [PATCH v3 02/10] iommu/amd: use page allocation function provided by iommu-pages.h Pasha Tatashin
2023-12-26 20:01 ` [PATCH v3 03/10] iommu/io-pgtable-arm: " Pasha Tatashin
2023-12-26 20:01 ` [PATCH v3 04/10] iommu/io-pgtable-dart: " Pasha Tatashin
2023-12-26 20:02 ` [PATCH v3 05/10] iommu/exynos: " Pasha Tatashin
2023-12-26 20:02 ` [PATCH v3 06/10] iommu/rockchip: " Pasha Tatashin
2023-12-26 20:02 ` [PATCH v3 07/10] iommu/sun50i: " Pasha Tatashin
2023-12-26 20:02 ` [PATCH v3 08/10] iommu/tegra-smmu: " Pasha Tatashin
2024-01-05 8:20 ` Thierry Reding
2023-12-26 20:02 ` [PATCH v3 09/10] iommu: observability of the IOMMU allocations Pasha Tatashin
2023-12-26 20:02 ` [PATCH v3 10/10] iommu: account IOMMU allocated memory Pasha Tatashin
2023-12-27 0:25 ` David Rientjes
2024-02-13 13:12 ` Will Deacon
2024-02-13 15:44 ` Pasha Tatashin
2024-02-16 17:57 ` Will Deacon
2024-02-16 19:48 ` Pasha Tatashin
2024-02-21 13:29 ` Will Deacon
2024-02-22 0:21 ` Jason Gunthorpe
2024-02-22 0:27 ` Pasha Tatashin
2023-12-27 10:05 ` [PATCH v3 00/10] IOMMU memory observability Bagas Sanjaya
2023-12-28 14:36 ` Pasha Tatashin
2024-01-04 15:31 ` Michal Koutný
2024-01-04 16:29 ` Pasha Tatashin [this message]
2024-01-04 17:04 ` Michal Koutný
2024-01-04 19:12 ` Pasha Tatashin
2024-01-05 9:02 ` Michal Koutný
2024-01-05 15:33 ` Pasha Tatashin
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