From: Daniel Wagner <wagi@monom.org>
To: Daniel Wagner <daniel.wagner@bmw-carit.de>, linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Chris Metcalf <cmetcalf@ezchip.com>,
Don Zickus <dzickus@redhat.com>, Ingo Molnar <mingo@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Lai Jiangshan <laijs@cn.fujitsu.com>,
Peter Zijlstra <peterz@infradead.org>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: Re: [RFC v0 4/9] smpboot: Use freeze_active() instead CPU_DEAD_FROZEN state information
Date: Tue, 8 Sep 2015 10:49:24 +0200 [thread overview]
Message-ID: <55EEA114.1010404@monom.org> (raw)
In-Reply-To: <1441373702-31796-5-git-send-email-daniel.wagner@bmw-carit.de>
On 09/04/2015 03:34 PM, Daniel Wagner wrote:
> In order to get rid of all CPU_*_FROZEN states we need to convert all
> users first.
>
> cpu_check_up_prepare() wants to report different errors depending on
> an ongoing suspend or not. freeze_active() reports back if that is the
> case so we don't have to rely on the CPU_DEAD_FROZEN anymore.
Just realized, this is patch doesn't make sense. The FROZEN bits in the
current code have nothing to do with CPU_TASK_FROZEN. Instead it should
use CPU_DEAD_TIMEOUT as explained in patch 01.
next prev parent reply other threads:[~2015-09-08 8:49 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-04 13:34 [RFC v0 0/9] Remove CPU_*_FROZEN Daniel Wagner
2015-09-04 13:34 ` [RFC v0 1/9] smpboot: Add a separate CPU state when a surviving CPU times out Daniel Wagner
2015-09-04 13:34 ` Daniel Wagner
2015-09-04 13:34 ` [RFC v0 2/9] suspend: Add getter function to report if freezing is active Daniel Wagner
2015-09-05 2:11 ` Rafael J. Wysocki
2015-09-07 8:55 ` Daniel Wagner
2015-09-07 8:55 ` Daniel Wagner
2015-09-07 13:42 ` Rafael J. Wysocki
2015-09-07 21:44 ` Rafael J. Wysocki
2015-09-08 8:19 ` Daniel Wagner
2015-09-08 8:19 ` Daniel Wagner
2015-09-04 13:34 ` [RFC v0 3/9] x86: Use freeze_active() instead of CPU_*_FROZEN Daniel Wagner
2015-09-04 13:34 ` [RFC v0 4/9] smpboot: Use freeze_active() instead CPU_DEAD_FROZEN state information Daniel Wagner
2015-09-08 8:49 ` Daniel Wagner [this message]
2015-09-04 13:34 ` [RFC v0 5/9] sched: Use freeze_active() instead CPU_*_FROZEN " Daniel Wagner
2015-09-04 13:34 ` [RFC v0 6/9] cpu: Restructure FROZEN state handling Daniel Wagner
2015-09-04 13:35 ` [RFC v0 7/9] cpu: Remove unused CPU_*_FROZEN states Daniel Wagner
2015-09-04 13:35 ` [RFC v0 8/9] cpu: Do not set CPU_TASKS_FROZEN anymore Daniel Wagner
2015-09-04 13:35 ` [RFC v0 9/9] doc: Update cpu-hotplug documents on removal of CPU_TASKS_FROZEN Daniel Wagner
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