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Thu, 4 Jan 2024 17:04:17 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap1.dmz-prg2.suse.org with ESMTPSA id MsmyGxHllmWDaAAAD6G6ig (envelope-from ); Thu, 04 Jan 2024 17:04:17 +0000 Date: Thu, 4 Jan 2024 18:04:16 +0100 From: Michal =?utf-8?Q?Koutn=C3=BD?= To: Pasha Tatashin Cc: akpm@linux-foundation.org, alim.akhtar@samsung.com, alyssa@rosenzweig.io, asahi@lists.linux.dev, baolu.lu@linux.intel.com, bhelgaas@google.com, cgroups@vger.kernel.org, corbet@lwn.net, david@redhat.com, dwmw2@infradead.org, hannes@cmpxchg.org, heiko@sntech.de, iommu@lists.linux.dev, jernej.skrabec@gmail.com, jonathanh@nvidia.com, joro@8bytes.org, krzysztof.kozlowski@linaro.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, lizefan.x@bytedance.com, marcan@marcan.st, mhiramat@kernel.org, m.szyprowski@samsung.com, paulmck@kernel.org, rdunlap@infradead.org, robin.murphy@arm.com, samuel@sholland.org, suravee.suthikulpanit@amd.com, sven@svenpeter.dev, thierry.reding@gmail.com, tj@kernel.org, tomas.mudrunka@gmail.com, vdumpa@nvidia.com, wens@csie.org, will@kernel.org, yu-cheng.yu@intel.com, rientjes@google.com Subject: Re: [PATCH v3 00/10] IOMMU memory observability Message-ID: References: <20231226200205.562565-1-pasha.tatashin@soleen.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="22fntkpk3vilmqk6" Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: 5C5B980020 X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: q8yetkaydfi6868srw3cszo95pkhdxqo X-HE-Tag: 1704387861-162017 X-HE-Meta: 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 UAB/fQru a/i313mJy/JxjN4iuf5hLFFzZXJzOiFVqCA+eQoMNjgAAVl95xirLuMqPnRwMvYw5dhd3aTUaLTDcy77WTBeR6BVYeG1EPzev+S5e1YfqyJ7yWGOr8+GBXcXehqv0NFrpoo1cyd8iDqrX/PHAdxokBtYrjtymGHe2qVSw1E2SiVXJCx8gtH/T+2InY2gl3nKEur/gVFmmyK62LkkJQlgDpaxilYv64bq6oHVRwYPwMZrLH3Xie6mGShGy4AcESGyEdkr+EgQhSlz4mKs14C80iyf+hKshXDvid5CvD3cwNAazRgWE6znXW2TUS8MUxvUAUYxWaibAeFuUxwqnocWSxWiNnYNvtNxt11Senfg5Z9wwEcbTZIZ/ePFkC2pykS8/FB02PQnEllj8nkBTAcDDm1ROhHJYcgyUI4nWMU5KVI7vwBIEjfp/RMs1EoZJX+VPrDLV X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: --22fntkpk3vilmqk6 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Jan 04, 2024 at 11:29:43AM -0500, Pasha Tatashin wrote: > 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: Ah, I didn't catch that. Though, I mean the patch 02/10 calls iommu_alloc_pages() with GFP_KERNEL (and not a passed gfp from iommu_map). Then patch 09/10 accounts all iommu_alloc_pages() under NR_IOMMU_PAGES. I think there is a difference between what's shown NR_IOMMU_PAGES and what will have __GFP_ACCOUNT because of that. I.e. is it the intention that this difference is not subject to limiting? (Note: I'm not familiar with iommu code and moreover I'm only looking at the two patch sets, not the complete code applied. So you may correct my reasoning.) Thanks, Michal --22fntkpk3vilmqk6 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQpEWyjXuwGT2dDBqAGvrMr/1gcjgUCZZblDgAKCRAGvrMr/1gc jiwfAQCSCpFQriEKwkEB8UUxOA9LFBhZfPl+l6lvTbTvghQXmQEAh2ukMdYInk9Z KYebGDty+dxGKeNxW6aKFLuxo9UKywg= =e+tC -----END PGP SIGNATURE----- --22fntkpk3vilmqk6--