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Date: Tue, 11 Nov 2008 09:01:12 +0100
From: Ingo Molnar <mingo@...e.hu>
To: Stephen Rothwell <sfr@...b.auug.org.au>
Cc: Andrew Morton <akpm@...ux-foundation.org>, Valdis.Kletnieks@...edu,
linux-kernel@...r.kernel.org, Ken Chen <kenchen@...gle.com>
Subject: Re: 2.6.28-rc4-mmotm1110 - you gotta be kidding me...
* Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> This came from commit a87d091434ed2a34d647979ab12084139ee1fe41
> ("x86, sched: enable wchan config menu item on 64-bit"). We have
> had CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER for some time on various
> architectures, this commit just made it available on x86_64 (by
> changing its dependency from X86_32 to X86).
correct. The SCHED_NO_NO name comes from ancient history. Nevertheless
i just renamed it to CONFIG_SCHED_OMIT_FRAME_POINTER in
tip/sched/core, and pushed out a new auto-sched-next with that rename
in place. We can get rid of it completely once Ken's /proc/<pid>/stack
hits upstream. (as the superior replacement for wchan)
Ingo
----------------->
>From ae1e9130bfb9ad55eb97ec3fb17a122b7a118f98 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@...e.hu>
Date: Tue, 11 Nov 2008 09:05:16 +0100
Subject: [PATCH] sched: rename SCHED_NO_NO_OMIT_FRAME_POINTER => SCHED_OMIT_FRAME_POINTER
Impact: cleanup, change .config option name
We had this ugly config name for a long time for hysteric raisons.
Rename it to a saner name.
We still cannot get rid of it completely, until /proc/<pid>/stack
usage replaces WCHAN usage for good.
We'll be able to do that in the v2.6.29/v2.6.30 timeframe.
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
arch/ia64/Kconfig | 2 +-
arch/m32r/Kconfig | 2 +-
arch/mips/Kconfig | 2 +-
arch/powerpc/Kconfig | 2 +-
arch/x86/Kconfig | 2 +-
include/asm-m32r/system.h | 2 +-
kernel/Makefile | 2 +-
7 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 27eec71..59d1278 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -99,7 +99,7 @@ config GENERIC_IOMAP
bool
default y
-config SCHED_NO_NO_OMIT_FRAME_POINTER
+config SCHED_OMIT_FRAME_POINTER
bool
default y
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index dbaed4a..29047d5 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -273,7 +273,7 @@ config GENERIC_CALIBRATE_DELAY
bool
default y
-config SCHED_NO_NO_OMIT_FRAME_POINTER
+config SCHED_OMIT_FRAME_POINTER
bool
default y
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index f4af967..a5255e7 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -653,7 +653,7 @@ config GENERIC_CMOS_UPDATE
bool
default y
-config SCHED_NO_NO_OMIT_FRAME_POINTER
+config SCHED_OMIT_FRAME_POINTER
bool
default y
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 525c13a..adb23ea 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -141,7 +141,7 @@ config GENERIC_NVRAM
bool
default y if PPC32
-config SCHED_NO_NO_OMIT_FRAME_POINTER
+config SCHED_OMIT_FRAME_POINTER
bool
default y
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1d5550d..74db682 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -364,7 +364,7 @@ config X86_RDC321X
as R-8610-(G).
If you don't have one of these chips, you should say N here.
-config SCHED_NO_NO_OMIT_FRAME_POINTER
+config SCHED_OMIT_FRAME_POINTER
def_bool y
prompt "Single-depth WCHAN output"
depends on X86
diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h
index 70a57c8..c980f5b 100644
--- a/include/asm-m32r/system.h
+++ b/include/asm-m32r/system.h
@@ -23,7 +23,7 @@
*/
#if defined(CONFIG_FRAME_POINTER) || \
- !defined(CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER)
+ !defined(CONFIG_SCHED_OMIT_FRAME_POINTER)
#define M32R_PUSH_FP " push fp\n"
#define M32R_POP_FP " pop fp\n"
#else
diff --git a/kernel/Makefile b/kernel/Makefile
index e1af039..46e67a3 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -91,7 +91,7 @@ obj-$(CONFIG_FUNCTION_TRACER) += trace/
obj-$(CONFIG_TRACING) += trace/
obj-$(CONFIG_SMP) += sched_cpupri.o
-ifneq ($(CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER),y)
+ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y)
# According to Alan Modra <alan@...uxcare.com.au>, the -fno-omit-frame-pointer is
# needed for x86 only. Why this used to be enabled for all architectures is beyond
# me. I suspect most platforms don't need this, but until we know that for sure
--
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