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powerpc/cpumask: Add DEBUG_PER_CPU_MAPS option

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Enable the DEBUG_PER_CPU_MAPS option so we can look for problems with
cpumasks .

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Anton Blanchard 2010-04-26 15:32:46 +00:00 committed by Benjamin Herrenschmidt
parent 2ef613cb94
commit ceba1abcb0
1 changed files with 12 additions and 0 deletions
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arch/powerpc/Kconfig.debug
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@ -44,6 +44,18 @@ config DEBUG_STACK_USAGE
This option will slow down process creation somewhat. This option will slow down process creation somewhat.
config DEBUG_PER_CPU_MAPS
bool "Debug access to per_cpu maps"
depends on DEBUG_KERNEL
depends on SMP
default n
---help---
Say Y to verify that the per_cpu map being accessed has
been setup. Adds a fair amount of code to kernel memory
and decreases performance.
Say N if unsure.
config HCALL_STATS config HCALL_STATS
bool "Hypervisor call instrumentation" bool "Hypervisor call instrumentation"
depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS