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* [raw v1 0/4] Replace __this_cpu ops with raw_cpu_ops where necessary
@ 2013-10-07 18:31 Christoph Lameter
  2013-10-08  7:27 ` Ingo Molnar
  2013-10-08 10:29 ` Ingo Molnar
  0 siblings, 2 replies; 3+ messages in thread
From: Christoph Lameter @ 2013-10-07 18:31 UTC (permalink / raw)
  To: Tejun Heo
  Cc: akpm, Steven Rostedt, linux-kernel, Ingo Molnar, Peter Zijlstra,
	Thomas Gleixner

The kernel can detect __this_cpu ops in preemptible contexts after
the preemption check patchset that I posted last week.

Here is a selection of patches to fix false positives caused by
the additional checks. So far I have found no bug. Amazing.
Looks like there was some prior work done to shake these things out?

I ran an upstream kernel using Ubuntu 13.04 + the preempt checking +
the patches below on my desktop and with the following patches no
__this_cpu ops triggered messages. The kernel had the default Ubuntu
desktop configuration (+ CONFIG_PREEMPT + CONFIG_DEBUG_THIS_CPU_OPERATIONS).


^ permalink raw reply	[flat|nested] 3+ messages in thread

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2013-10-07 18:31 [raw v1 0/4] Replace __this_cpu ops with raw_cpu_ops where necessary Christoph Lameter
2013-10-08  7:27 ` Ingo Molnar
2013-10-08 10:29 ` Ingo Molnar

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