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Received: from willy by casper.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1sMoTx-0000000DXfG-3FF4; Thu, 27 Jun 2024 12:44:09 +0000 Date: Thu, 27 Jun 2024 13:44:09 +0100 From: Matthew Wilcox To: =?utf-8?B?bWFubnl3YW5nKOeOi+awuOWzsCk=?= Cc: hughd , linux-mm Subject: Re: Proposal for Creating Shared Memory Areas via a Character Device Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 3834940022 X-Stat-Signature: 7zcwkrcrk4y5qdm4eegg4buzxffr9x8j X-Rspam-User: X-HE-Tag: 1719492256-49484 X-HE-Meta: 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 21JD037B 1izKH9k9zNB58ML7P0SWXc81bXzuSvmYj8FwMOhPb/rKhkFTDmX/NE/BIPwSwSzx8+LZUm14HfezNLA6MqRsxG8deUcEUXxfRMM7P4iaekbjIVN2Nk+78UO8cP7qLXUByTS0A8bQvbVfljGuD6eFA0tD2pSTFedkklIzh1OdusNKCPsIRi+z3/fx+xRu0NIKvy5KITNiAVxMsZAdXqa+HO5f8tbGM5Jth04Ju X-Bogosity: Ham, tests=bogofilter, spamicity=0.000004, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Jun 27, 2024 at 06:53:04PM +0800, mannywang(王永峰) wrote: > We have identified certain scenarios, such as interactions between > running Docker containers and their hosts, where there is currently > no suitable method to efficiently create shared memory areas. This > limitation arises due to the isolated nature of these environments > and the assumption that necessary path mappings may not have been > configured during Docker startup. What's wrong with shmget()?