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| author | Anton Blanchard <anton@samba.org> | 2010-04-26 15:32:46 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-05-06 18:05:26 +1000 |
| commit | ceba1abcb00b0ef0b1efcd715285f6e05523edef (patch) | |
| tree | 6aa0a9334a3324f9f7170606cc071b5dbd223832 | |
| parent | 2ef613cb94556ff69860f6bf004298f4e131c216 (diff) | |
| download | linux-stable-ceba1abcb00b0ef0b1efcd715285f6e05523edef.tar.gz linux-stable-ceba1abcb00b0ef0b1efcd715285f6e05523edef.tar.bz2 linux-stable-ceba1abcb00b0ef0b1efcd715285f6e05523edef.zip | |
powerpc/cpumask: Add DEBUG_PER_CPU_MAPS option
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>
| -rw-r--r-- | arch/powerpc/Kconfig.debug | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index 5cdd7ed9a12e..53696da4518f 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -44,6 +44,18 @@ config DEBUG_STACK_USAGE 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 bool "Hypervisor call instrumentation" depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS |