lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Message-ID: <aCF4Bm-2cpU__QDA@infradead.org> Date: Sun, 11 May 2025 21:24:38 -0700 From: Christoph Hellwig <hch@...radead.org> To: Andrew Lunn <andrew@...n.ch> Cc: Ilias Apalodimas <ilias.apalodimas@...aro.org>, Jakub Kicinski <kuba@...nel.org>, Byungchul Park <byungchul@...com>, willy@...radead.org, almasrymina@...gle.com, kernel_team@...ynix.com, 42.hyeyoo@...il.com, linux-mm@...ck.org, hawk@...nel.org, netdev@...r.kernel.org Subject: Re: [RFC] shrinking struct page (part of page pool) On Sat, May 10, 2025 at 03:53:47PM +0200, Andrew Lunn wrote: > > Random thoughts here until I look at the patches. > > The concept of devices doing DMA + recycling the used buffer > > transcends networking. > > Do you know of any other subsystem which takes a page, splits it into > two, and then uses each half independently for DMA and recycling. A > typical packet is 1514 octets, so you can get two in a page. The mm/dmapool.c code is all about this.
Powered by blists - more mailing lists