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Date: Fri, 24 Jul 2020 13:25:50 -0700 From: Linus Torvalds <torvalds@...ux-foundation.org> To: David Howells <dhowells@...hat.com> Cc: Al Viro <viro@...iv.linux.org.uk>, Casey Schaufler <casey@...aufler-ca.com>, Stephen Smalley <sds@...ho.nsa.gov>, Nicolas Dichtel <nicolas.dichtel@...nd.com>, Ian Kent <raven@...maw.net>, Christian Brauner <christian@...uner.io>, Jeff Layton <jlayton@...hat.com>, Karel Zak <kzak@...hat.com>, Miklos Szeredi <mszeredi@...hat.com>, Linux API <linux-api@...r.kernel.org>, linux-fsdevel <linux-fsdevel@...r.kernel.org>, LSM List <linux-security-module@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 3/4] watch_queue: Implement mount topology and attribute change notifications On Fri, Jul 24, 2020 at 12:59 PM David Howells <dhowells@...hat.com> wrote: > > That's a good point. Any suggestions on how to do it? An additional RLIMIT? > > Or should I do it like I did with keyrings and separately manage a quota for > each user? I'd count them per user, and maybe start out saying "you can have as many watches as you can have files" and just re-use RLIMIT_NOFILE as the limit for them. And if that causes problems, let's re-visit. How does that sound? Linus
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