linux-kernel - Re: [PATCH 1/1] introduce user

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1237537460.24626.32.camel@twins>
Date:	Fri, 20 Mar 2009 09:24:20 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	"Serge E. Hallyn" <serue@...ibm.com>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	Dhaval Giani <dhaval@...ux.vnet.ibm.com>, mingo@...e.hu,
	Bharata B Rao <bharata@...ux.vnet.ibm.com>,
	Linux Containers <containers@...ts.osdl.org>
Subject: Re: [PATCH 1/1] introduce user_ns inheritance in user-sched

On Thu, 2009-03-19 at 16:16 -0500, Serge E. Hallyn wrote:
> In a kernel compiled with CONFIG_USER_SCHED=y, cpu shares are
> allocated according to uid.  Shares are specifiable under
> /sys/kernel/uids/<uid>/
> 
> In a kernel compiled with CONFIG_USER_NS=y, clone(2) with the
> CLONE_NEWUSER flag creates a new user namespace, and the newly
> cloned task will belong to uid 0 in the new user namespace.

We seem to be adding more and more stuff for USER_SCHED, is anybody
actually using that cruft?

How far along with cgroups are we to fully simulate that behaviour?

I think if we have a capable cgroup based replacement for USER_SCHED we
should axe it from the kernel, would save lots of code...


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/