From: Stephen Boyd Date: Wed, 25 May 2011 00:13:32 +0000 (-0700) Subject: lib: consolidate DEBUG_PER_CPU_MAPS X-Git-Tag: v3.0~550 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=44ec7abe359204cc9186e32d31ef5b34c8d17274;p=platform%2Fkernel%2Flinux-amlogic.git lib: consolidate DEBUG_PER_CPU_MAPS 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 Cc: Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "H. Peter Anvin" Acked-by: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index a597dd7..e1890e6 100644 --- a/arch/powerpc/Kconfig.debug +++ b/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 --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index 615e188..1bf8839 100644 --- a/arch/x86/Kconfig.debug +++ b/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 --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 0efcdca..09596e0 100644 --- a/lib/Kconfig.debug +++ b/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