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From: Suresh Siddha <suresh.b.siddha@intel.com>
To: mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com,
	trenn@novell.com, prarit@redhat.com, tj@kernel.org,
	rusty@rustcorp.com.au, a.p.zijlstra@chello.nl,
	akpm@linux-foundation.org, torvalds@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, suresh.b.siddha@intel.com,
	youquan.song@intel.com
Subject: [patch 0/4] MTRR rendezvous deadlock fix and cleanups using stop_machine()
Date: Wed, 22 Jun 2011 15:20:21 -0700	[thread overview]
Message-ID: <20110622222021.904952469@sbsiddha-MOBL3.sc.intel.com> (raw)

Ingo, Peter:

Here is the updated MTRR stop machine patch-set.

First patch is a quick fix targeting 3.0 and the stable kernels.
This fixes the boot deadlock reported in the
https://bugzilla.novell.com/show_bug.cgi?id=672008

Second patch reorganizes the stop_cpus() code.

Third patch introduces stop_machine_from_offline_cpu() so that we can do
stop machine from the cpu hotplug path, where the calling cpu is not
yet online.

Fourth patch uses the stop_machine() and stop_machine_from_offline_cpu()
to implement the x86 MTRR rendezvous sequence and thus remove the duplicate
implementation of stop machine using stop_one_cpu_nowait().

thanks,
suresh



             reply	other threads:[~2011-06-22 22:31 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-22 22:20 Suresh Siddha [this message]
2011-06-22 22:20 ` [patch 1/4] x86, mtrr: lock stop machine during MTRR rendezvous sequence Suresh Siddha
2011-06-23  9:05   ` Peter Zijlstra
2011-06-23  9:33     ` Thomas Gleixner
2011-06-23  9:41       ` Peter Zijlstra
2011-06-23 18:16       ` Suresh Siddha
2011-06-22 22:20 ` [patch 2/4] stop_machine: reorganize stop_cpus() implementation Suresh Siddha
2011-06-22 22:20 ` [patch 3/4] stop_machine: implement stop_machine_from_offline_cpu() Suresh Siddha
2011-06-23  9:25   ` Peter Zijlstra
2011-06-23  9:28     ` Tejun Heo
2011-06-23  9:31       ` Peter Zijlstra
2011-06-23 18:19     ` Suresh Siddha
2011-06-24  7:45       ` Peter Zijlstra
2011-06-24 17:55         ` Suresh Siddha
2011-06-22 22:20 ` [patch 4/4] x86, mtrr: use stop_machine() for doing MTRR rendezvous Suresh Siddha

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