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Mon, 06 Feb 2023 07:29:32 -0800 (PST) Message-ID: <52d41a7e-1407-e74f-9206-6dd583b7b6b5@kernel.dk> Date: Mon, 6 Feb 2023 08:29:30 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 Subject: Re: [PATCH 09/19] io_uring: convert to use vm_account Content-Language: en-US To: Alistair Popple , linux-mm@kvack.org, cgroups@vger.kernel.org Cc: linux-kernel@vger.kernel.org, jgg@nvidia.com, jhubbard@nvidia.com, tjmercier@google.com, hannes@cmpxchg.org, surenb@google.com, mkoutny@suse.com, daniel@ffwll.ch, "Daniel P . Berrange" , Alex Williamson , Pavel Begunkov , io-uring@vger.kernel.org References: <44e6ead48bc53789191b22b0e140aeb82459e75f.1675669136.git-series.apopple@nvidia.com> From: Jens Axboe In-Reply-To: <44e6ead48bc53789191b22b0e140aeb82459e75f.1675669136.git-series.apopple@nvidia.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 9BF32C0015 X-Stat-Signature: kd77dxawpqe6ck46fgufq1gwgqxbd6fm X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1675697373-922226 X-HE-Meta: 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 THLRrJ+K 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 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: On 2/6/23 12:47 AM, Alistair Popple wrote: > Convert io_uring to use vm_account instead of directly charging pages > against the user/mm. Rather than charge pages to both user->locked_vm > and mm->pinned_vm this will only charge pages to user->locked_vm. Not sure how we're supposed to review this, when you just send us 9/19 and vm_account_release() is supposedly an earlier patch in this series. Either CC the whole series, or at least the cover letter, core parts, and the per-subsystem parts. -- Jens Axboe