From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Cc: bharata@linux.vnet.ibm.com, linux-kernel@vger.kernel.org,
Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH] sched: Don't allow priority switch to realtime when the task doesn't belong to init_task_group and when CONFIG_RT_GROUP_SCHED isn't set
Date: Mon, 24 Nov 2008 10:06:15 +0100 [thread overview]
Message-ID: <1227517575.7685.21906.camel@twins> (raw)
In-Reply-To: <20081124084644.GA26526@linux.vnet.ibm.com>
On Mon, 2008-11-24 at 14:16 +0530, Dhaval Giani wrote:
> Which would mean the init_task_group becase it contains those tasks which are
> not grouped.
Only because of implementation details (we implement the !group case by
having them all part of a single group), conceptually they don't belong
to any group, hence talking about moving it to some group is just wrong.
Furthermore your statement shows another misconception, a group of
ungrouped tasks doesn't make sense. Either we support grouping, in which
case any task belongs to a group, or we don't and they all belong to no
(or the same) group.
next prev parent reply other threads:[~2008-11-24 9:06 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-20 6:18 [PATCH] sched: Don't allow priority switch to realtime when the task doesn't belong to init_task_group and when CONFIG_RT_GROUP_SCHED isn't set Bharata B Rao
2008-11-20 7:58 ` Ingo Molnar
2008-11-20 8:03 ` Dhaval Giani
2008-11-20 8:17 ` Ingo Molnar
2008-11-20 8:19 ` Bharata B Rao
2008-11-23 1:11 ` Peter Zijlstra
2008-11-24 3:58 ` Bharata B Rao
2008-11-24 8:32 ` Peter Zijlstra
2008-11-24 8:46 ` Dhaval Giani
2008-11-24 9:06 ` Peter Zijlstra [this message]
2008-11-24 15:24 ` Chris Friesen
2008-11-24 15:36 ` Peter Zijlstra
2008-11-25 18:51 ` Chris Friesen
2008-11-25 20:17 ` Peter Zijlstra
2008-11-24 17:05 ` Srivatsa Vaddagiri
2008-11-24 18:46 ` Peter Zijlstra
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