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Commit 5ca43f6c authored May 24, 2011 by Stephen Boyd Committed by Linus Torvalds May 25, 2011

lib: consolidate DEBUG_STACK_USAGE option



Most arches define CONFIG_DEBUG_STACK_USAGE exactly the same way.  Move it
to lib/Kconfig.debug so each arch doesn't have to define it.  This
obviously makes the option generic, but that's fine because the config is
already used in generic code.

It's not obvious to me that sysrq-P actually does anything caution by
keeping the most inclusive wording.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Richard Weinberger <richard@nod.at>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent c84598bb

arch/arm/Kconfig.debug

+0 −7

Original line number	Diff line number	Diff line
		@@ -63,13 +63,6 @@ config DEBUG_USER
		8 - SIGSEGV faults
		16 - SIGBUS faults

		config DEBUG_STACK_USAGE
		bool "Enable stack utilization instrumentation"
		depends on DEBUG_KERNEL
		help
		Enables the display of the minimum amount of free stack which each
		task has ever had available in the sysrq-T output.

		# These options are only for real kernel hackers who want to get their hands dirty.
		config DEBUG_LL
		bool "Kernel low-level debugging functions"

arch/blackfin/Kconfig.debug

+0 −9

Original line number	Diff line number	Diff line
		@@ -9,15 +9,6 @@ config DEBUG_STACKOVERFLOW
		This option will cause messages to be printed if free stack space
		drops below a certain limit.

		config DEBUG_STACK_USAGE
		bool "Enable stack utilization instrumentation"
		depends on DEBUG_KERNEL
		help
		Enables the display of the minimum amount of free stack which each
		task has ever had available in the sysrq-T output.

		This option will slow down process creation somewhat.

		config DEBUG_VERBOSE
		bool "Verbose fault messages"
		default y

arch/m32r/Kconfig.debug

+0 −9

Original line number	Diff line number	Diff line
		@@ -9,15 +9,6 @@ config DEBUG_STACKOVERFLOW
		This option will cause messages to be printed if free stack space
		drops below a certain limit.

		config DEBUG_STACK_USAGE
		bool "Stack utilization instrumentation"
		depends on DEBUG_KERNEL
		help
		Enables the display of the minimum amount of free stack which each
		task has ever had available in the sysrq-T and sysrq-P debug output.

		This option will slow down process creation somewhat.

		config DEBUG_PAGEALLOC
		bool "Debug page memory allocations"
		depends on DEBUG_KERNEL && BROKEN

arch/mips/Kconfig.debug

+0 −9

Original line number	Diff line number	Diff line
		@@ -76,15 +76,6 @@ config DEBUG_STACKOVERFLOW
		provides another way to check stack overflow happened on kernel mode
		stack usually caused by nested interruption.

		config DEBUG_STACK_USAGE
		bool "Enable stack utilization instrumentation"
		depends on DEBUG_KERNEL
		help
		Enables the display of the minimum amount of free stack which each
		task has ever had available in the sysrq-T and sysrq-P debug output.

		This option will slow down process creation somewhat.

		config SMTC_IDLE_HOOK_DEBUG
		bool "Enable additional debug checks before going into CPU idle loop"
		depends on DEBUG_KERNEL && MIPS_MT_SMTC

arch/powerpc/Kconfig.debug

+0 −9

Original line number	Diff line number	Diff line
		@@ -35,15 +35,6 @@ config DEBUG_STACKOVERFLOW
		This option will cause messages to be printed if free stack space
		drops below a certain limit.

		config DEBUG_STACK_USAGE
		bool "Stack utilization instrumentation"
		depends on DEBUG_KERNEL
		help
		Enables the display of the minimum amount of free stack which each
		task has ever had available in the sysrq-T and sysrq-P debug output.

		This option will slow down process creation somewhat.

		config HCALL_STATS
		bool "Hypervisor call instrumentation"
		depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS