diff options
| author | Stephen Boyd <sboyd@codeaurora.org> | 2011-05-24 17:13:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-25 08:39:53 -0700 |
| commit | 44ec7abe359204cc9186e32d31ef5b34c8d17274 (patch) | |
| tree | 0a00cefe04db51828a11d2fe28fc75e763bda5f1 | |
| parent | c196e32a111b0ee356d67acceb938ae0b5e63ef0 (diff) | |
| download | lwn-44ec7abe359204cc9186e32d31ef5b34c8d17274.tar.gz lwn-44ec7abe359204cc9186e32d31ef5b34c8d17274.zip | |
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 <sboyd@codeaurora.org>
Cc: <linux-arch@vger.kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/powerpc/Kconfig.debug | 12 | ||||
| -rw-r--r-- | arch/x86/Kconfig.debug | 11 | ||||
| -rw-r--r-- | lib/Kconfig.debug | 11 |
3 files changed, 11 insertions, 23 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index a597dd77b903..e1890e6d31b6 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 615e18810f48..1bf88396ba23 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 0efcdca9751a..09596e01468e 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 |