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From: Robin Murphy <robin.murphy@arm.com>
To: will.deacon@arm.com, mark.rutland@arm.com
Cc: suzuki.poulose@arm.com, peterz@infradead.org,
	bigeasy@linutronix.de, linux-kernel@vger.kernel.org,
	tglx@linutronix.de, linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/5] Fix Arm system PMU hotplug issues
Date: Mon,  4 Feb 2019 17:09:03 +0000	[thread overview]
Message-ID: <cover.1549299188.git.robin.murphy@arm.com> (raw)

Hi all,

Following the report of a preemption-related bug in arm-cci, it turns
out there's a fair bit of cleaning up to do in this area. I've started
here with the Arm drivers that I'm fairly familiar with - I suspect the
hisi/qcom/xgene ones suffer from similar issues, but it's going to take
me a while longer to figure them out in detail.

Robin.


Robin Murphy (5):
  perf/arm-cci: Fix CPU hotplug race avoidance
  cpu/hotplug: Export __cpuhp_state_add_instance_cpuslocked()
  perf/arm-ccn: Fix CPU hotplug race avoidance
  cpu/hotplug: Add locked variant of cpuhp_state_add_instance()
  perf/arm_dsu: Fix CPU hotplug races

 drivers/perf/arm-cci.c     | 22 ++++++++++++----------
 drivers/perf/arm-ccn.c     | 25 +++++++++++++------------
 drivers/perf/arm_dsu_pmu.c |  8 +++++---
 include/linux/cpuhotplug.h |  6 ++++++
 kernel/cpu.c               |  1 +
 5 files changed, 37 insertions(+), 25 deletions(-)

-- 
2.20.1.dirty


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             reply	other threads:[~2019-02-04 17:09 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-04 17:09 Robin Murphy [this message]
2019-02-04 17:09 ` [PATCH 1/5] perf/arm-cci: Fix CPU hotplug race avoidance Robin Murphy
2019-02-05 10:10   ` Corentin Labbe
2019-02-05 11:19   ` Suzuki K Poulose
2019-02-10 20:43   ` Thomas Gleixner
2019-02-04 17:09 ` [PATCH 2/5] cpu/hotplug: Export __cpuhp_state_add_instance_cpuslocked() Robin Murphy
2019-02-04 17:09 ` [PATCH 3/5] perf/arm-ccn: Fix CPU hotplug race avoidance Robin Murphy
2019-02-05 11:38   ` Suzuki K Poulose
2019-02-10 20:44   ` Thomas Gleixner
2019-02-04 17:09 ` [PATCH 4/5] cpu/hotplug: Add locked variant of cpuhp_state_add_instance() Robin Murphy
2019-02-04 17:09 ` [PATCH 5/5] perf/arm_dsu: Fix CPU hotplug races Robin Murphy
2019-02-05 11:40   ` Suzuki K Poulose
2019-02-05 13:04     ` Robin Murphy
2019-02-05  9:25 ` [PATCH 0/5] Fix Arm system PMU hotplug issues Mark Rutland

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