The patch titled
lib: consolidate DEBUG_PER_CPU_MAPS
has been added to the -mm tree. Its filename is
lib-consolidate-debug_per_cpu_maps.patch
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------------------------------------------------------
Subject: lib: consolidate DEBUG_PER_CPU_MAPS
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>
Cc: 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
@@ -968,6 +968,17 @@ 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
_
Patches currently in -mm which might be from sboyd@xxxxxxxxxxxxxx are
linux-next.patch
msm-timer-migrate-to-timer-based-__delay.patch
lib-consolidate-debug_per_cpu_maps.patch
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