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bh=DAfO6lgQfsX8e4eAz4Jp1wblc0DHfPpgZd2JsmuvcXc=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=nm6CNxHGjw7mjWJMcGRqObe44yKeqZ1WvpXtlQcZeGSCAmlJRuD24SKXQ9OUXeWCj ZWpL9zBTkVCWxcz5xfEh/l6C+nSdgjrCUj+bKEodPfJ17U6rznW4aZaokV/iYUzTh2 xuJbo62QRTs1vMUrEohN+0HIfBse9HjD0GgMbaGY= Date: Sat, 25 Feb 2023 21:08:54 -0800 From: Andrew Morton To: Stefan Roesch Cc: kernel-team@fb.com, linux-mm@kvack.org, riel@surriel.com, mhocko@suse.com, david@redhat.com, linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org, hannes@cmpxchg.org Subject: Re: [PATCH v3 0/3] mm: process/cgroup ksm support Message-Id: <20230225210854.25e93b1d94666aa13c269104@linux-foundation.org> In-Reply-To: <20230224044000.3084046-1-shr@devkernel.io> References: <20230224044000.3084046-1-shr@devkernel.io> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 3748E140005 X-Stat-Signature: z5he4oisgqbjkhwuppmbyjhb3beher71 X-HE-Tag: 1677388136-781461 X-HE-Meta: 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 u3TOEK3C uUNGuTvq/SneNvsSXrz6Ld5iss9+NN6Ol5PLc9PdWJhfA8zzp4gTyBtgTupqDBBx+Kzi/l9eBApyElztju8TPaqSWEBIrR0A9xofdVERKRpdYxrZlIyD4hocnoPcMK4Z3wgcVXbpsyEJT9eCh/0jyoZVKXMBr8koZbDpZzzHe84UvPUmG+ScyNH8OE9sRrfbDT6q/+Wlf7NLYLG9Cc66MGudPPfPQTmFeHXxyBHjM5ruGNfA7wQWexlxMPKZaKPAwMua4WoAZZx3ulb4Fd8KblmglvW80GNSQS7Mqvfel9p0+OcTzwVKyZCxpHuxBKukUSP6svMUtxNPzwmDkPi7nYilqKIAarQQg0PiA 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 Thu, 23 Feb 2023 20:39:57 -0800 Stefan Roesch wrote: > So far KSM can only be enabled by calling madvise for memory regions. To > be able to use KSM for more workloads, KSM needs to have the ability to be > enabled / disabled at the process / cgroup level. I'll toss this in for integration and testing, but I'd like to see reviewer input before proceeding further. Please plan on adding suitable user-facing documentation? Presumably a patch for the prctl manpage?