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Commit 44ec7abe authored by Stephen Boyd's avatar Stephen Boyd Committed by Linus Torvalds
Browse files

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: default avatarStephen 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: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c196e32a

arch/powerpc/Kconfig.debug

+0 −12
Original line number Diff line number Diff line
@@ -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

arch/x86/Kconfig.debug

+0 −11
Original line number Diff line number Diff line
@@ -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

lib/Kconfig.debug

+11 −0
Original line number Diff line number Diff line
@@ -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