From: Stephen Boyd <sboyd@xxxxxxxxxxxxxx> DEBUG_PER_CPU_MAPS is used in lib/cpumask.c as well as in inlcude/linux/cpumask.h and thus it has outgrown its use within x86 and powerpc alone. Any arch with SMP support may want to get some more debugging, so make this option generic. Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx> Cc: <linux-arch@xxxxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Acked-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/powerpc/Kconfig.debug | 12 ------------ arch/x86/Kconfig.debug | 11 ----------- lib/Kconfig.debug | 11 +++++++++++ 3 files changed, 11 insertions(+), 23 deletions(-) diff -puN arch/powerpc/Kconfig.debug~lib-consolidate-debug_per_cpu_maps arch/powerpc/Kconfig.debug --- a/arch/powerpc/Kconfig.debug~lib-consolidate-debug_per_cpu_maps +++ a/arch/powerpc/Kconfig.debug @@ -44,18 +44,6 @@ 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 diff -puN arch/x86/Kconfig.debug~lib-consolidate-debug_per_cpu_maps arch/x86/Kconfig.debug --- a/arch/x86/Kconfig.debug~lib-consolidate-debug_per_cpu_maps +++ a/arch/x86/Kconfig.debug @@ -75,17 +75,6 @@ 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 - ---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 X86_PTDUMP bool "Export kernel pagetable layout to userspace via debugfs" depends on DEBUG_KERNEL diff -puN lib/Kconfig.debug~lib-consolidate-debug_per_cpu_maps lib/Kconfig.debug --- a/lib/Kconfig.debug~lib-consolidate-debug_per_cpu_maps +++ a/lib/Kconfig.debug @@ -983,6 +983,17 @@ config DEBUG_FORCE_WEAK_PER_CPU To ensure that generic code follows the above rules, this option forces all percpu variables to be defined as weak. +config DEBUG_PER_CPU_MAPS + bool "Debug access to per_cpu maps" + depends on DEBUG_KERNEL + depends on SMP + help + Say Y to verify that the per_cpu map being accessed has + been set up. This adds a fair amount of code to kernel memory + and decreases performance. + + Say N if unsure. + config LKDTM tristate "Linux Kernel Dump Test Tool Module" depends on DEBUG_FS _ -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
