patches-3.6.5-rt13.tar.xzv3.6.5-rt13

md5sum:
ee8c10af98e17aa33b23823fa54f6bc7  patches-3.6.5-rt13.tar.xz

No announce (but see rt14 announce for retroactive
perspective on rt13).

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

4 files changed, 2 insertions, 82 deletions

diff --git a/cpufreq-powernow-k8-fix-bogus-smp-processor-id-usage.patch b/cpufreq-powernow-k8-fix-bogus-smp-processor-id-usage.patch
deleted file mode 100644
index 18bb630..0000000
--- a/cpufreq-powernow-k8-fix-bogus-smp-processor-id-usage.patch
+++ /dev/null
@@ -1,79 +0,0 @@
-Subject: cpufreq: powernow-k8: Remove bogus smp_processor_id() usage
-From: Thomas Gleixner <tglx@linutronix.de>
-Date: Sat, 27 Oct 2012 12:26:44 +0200
-
-commit 6889125b (cpufreq/powernow-k8: workqueue user shouldn't migrate
-the kworker to another CPU) has a broken optimization of calling
-powernowk8_target_fn() directly from powernowk8_target() which
-results in the following splat:
-
-[   11.789468] BUG: using smp_processor_id() in preemptible [00000000] code:
-    	       modprobe/505
-[   11.809594] caller is powernowk8_target+0x20/0x48 [powernow_k8]
-[   12.001748] Pid: 505, comm: modprobe Not tainted 3.6.3 #3
-[   12.016836] Call Trace:
-[   12.025971]  [<ffffffff81241554>] debug_smp_processor_id+0xcc/0xe8
-[   12.042518]  [<ffffffffa05bb07f>] powernowk8_target+0x20/0x48 [powernow_k8]
-[   12.060733]  [<ffffffff813b3c23>] __cpufreq_driver_target+0x82/0x8a
-[   12.077550]  [<ffffffff813b64a9>] cpufreq_governor_userspace+0x265/0x2c0
-[   12.120378]  [<ffffffff81063c5c>] ? __blocking_notifier_call_chain+0x56/0x60
-[   12.138862]  [<ffffffff813b3d8b>] __cpufreq_governor+0x8c/0xc9
-[   12.155193]  [<ffffffff813b4031>] __cpufreq_set_policy+0x212/0x21e
-[   12.172148]  [<ffffffff813b501e>] cpufreq_add_dev_interface+0x2a2/0x2bc
-[   12.189855]  [<ffffffff813b602b>] ? cpufreq_update_policy+0x124/0x124
-[   12.207096]  [<ffffffff813b54dc>] cpufreq_add_dev+0x4a4/0x4b4
-[   12.223161]  [<ffffffff812f8136>] subsys_interface_register+0x95/0xc5
-[   12.240386]  [<ffffffff8149aaf9>] ? _raw_spin_lock_irqsave+0x24/0x46
-[   12.257477]  [<ffffffff813b5928>] cpufreq_register_driver+0xd2/0x1bf
-[   12.274545]  [<ffffffffa05bc087>] powernowk8_init+0x193/0x1dc [powernow_k8]
-[   12.292794]  [<ffffffffa05bbef4>] ? powernowk8_cpu_init+0xc53/0xc53 [powernow_k8]
-[   12.312004]  [<ffffffff81002195>] do_one_initcall+0x7f/0x136
-[   12.327594]  [<ffffffff8108f48f>] sys_init_module+0x17b0/0x197e
-[   12.343718]  [<ffffffff81249494>] ? ddebug_proc_write+0xde/0xde
-[   12.359767]  [<ffffffff8149f639>] system_call_fastpath+0x16/0x1b
-
-This is fully preemptible non cpu bound context though the comment in the
-code says:
-
-	 * Must run on @pol->cpu.  cpufreq core is responsible for ensuring
-	 * that we're bound to the current CPU and pol->cpu stays online.
-
-The core only guarantees that pol->cpu stays online, but it has no way
-to bind the thread and this needs to be fully preemptible context as
-powernowk8_target_fn() calls functions which might sleep.
-
-So the correct solution is to always go through work_on_cpu().
-
-Reported-and-tested-by: Carsten Emde <C.Emde@osadl.org>
-Cc: Tejun Heo <tj@kernel.org>
-Cc: Rafael J. Wysocki <rjw@sisk.pl>
-Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
-Cc: stable@vger.kernel.org
-Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
----
- drivers/cpufreq/powernow-k8.c |   11 +++++------
- 1 file changed, 5 insertions(+), 6 deletions(-)
-
-Index: linux-stable/drivers/cpufreq/powernow-k8.c
-===================================================================
---- linux-stable.orig/drivers/cpufreq/powernow-k8.c
-+++ linux-stable/drivers/cpufreq/powernow-k8.c
-@@ -1224,13 +1224,12 @@ static int powernowk8_target(struct cpuf
- 					     .relation = relation };
- 
- 	/*
--	 * Must run on @pol->cpu.  cpufreq core is responsible for ensuring
--	 * that we're bound to the current CPU and pol->cpu stays online.
-+	 * Must run on @pol->cpu. We queue it on the target cpu even
-+	 * if we are currently on the target cpu. This is preemptible
-+	 * non cpu bound context, so we can't call the target function
-+	 * directly.
- 	 */
--	if (smp_processor_id() == pol->cpu)
--		return powernowk8_target_fn(&pta);
--	else
--		return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta);
-+	return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta);
- }
- 
- /* Driver entry point to verify the policy and range of frequencies */
diff --git a/localversion.patch b/localversion.patch
index aa55f5b..8047704 100644
--- a/localversion.patch
+++ b/localversion.patch
@@ -14,4 +14,4 @@ Index: linux-stable/localversion-rt
 --- /dev/null
 +++ linux-stable/localversion-rt
 @@ -0,0 +1 @@
-+-rt12
++-rt13
diff --git a/preempt-lazy-support.patch b/preempt-lazy-support.patch
index 7176edf..9617016 100644
--- a/preempt-lazy-support.patch
+++ b/preempt-lazy-support.patch
@@ -299,7 +299,7 @@ Index: linux-stable/kernel/sched/core.c
  	task_thread_info(p)->preempt_count = 1;
  #endif
 +#ifdef CONFIG_HAVE_PREEMPT_LAZY
-+	task_thread_info(idle)->preempt_lazy_count = 0;
++	task_thread_info(p)->preempt_lazy_count = 0;
 +#endif
  #ifdef CONFIG_SMP
  	plist_node_init(&p->pushable_tasks, MAX_PRIO);
diff --git a/series b/series
index a859a63..f2043f5 100644
--- a/series
+++ b/series
@@ -595,7 +595,6 @@ softirq-split-locks.patch
 rcu-tiny-solve-rt-mistery.patch
 slub-correct-per-cpu-slab.patch
 mm-enable-slub.patch
-cpufreq-powernow-k8-fix-bogus-smp-processor-id-usage.patch
 hrtimer-raise-softirq-if-hrtimer-irq-stalled.patch
 
 rcu-disable-rcu-fast-no-hz-on-rt.patch