The patch titled
Move LOG_BUF_SHIFT to a more sensible place
has been added to the -mm tree. Its filename is
move-log_buf_shift-to-a-more-sensible-place.patch
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See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
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------------------------------------------------------
Subject: Move LOG_BUF_SHIFT to a more sensible place
From: Alistair John Strachan <s0348365@xxxxxxxxxxxx>
Several people have observed that perhaps LOG_BUF_SHIFT should be in a more
obvious place than under DEBUG_KERNEL. Under some circumstances (such as the
PARISC architecture), DEBUG_KERNEL can increase kernel size, which is an
undesirable trade off for something as trivial as increasing the kernel log
buffer size.
Instead, move LOG_BUF_SHIFT into "General Setup", so that people are more
likely to be able to change it such a circumstance that the default buffer
size is insufficient.
Signed-off-by: Alistair John Strachan <s0348365@xxxxxxxxxxxx>
Acked-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
init/Kconfig | 17 +++++++++++++++++
lib/Kconfig.debug | 17 -----------------
2 files changed, 17 insertions(+), 17 deletions(-)
diff -puN init/Kconfig~move-log_buf_shift-to-a-more-sensible-place init/Kconfig
--- a/init/Kconfig~move-log_buf_shift-to-a-more-sensible-place
+++ a/init/Kconfig
@@ -266,6 +266,23 @@ config IKCONFIG_PROC
This option enables access to the kernel configuration file
through /proc/config.gz.
+config LOG_BUF_SHIFT
+ int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
+ range 12 21
+ default 17 if S390 || LOCKDEP
+ default 16 if X86_NUMAQ || IA64
+ default 15 if SMP
+ default 14
+ help
+ Select kernel log buffer size as a power of 2.
+ Defaults and Examples:
+ 17 => 128 KB for S/390
+ 16 => 64 KB for x86 NUMAQ or IA-64
+ 15 => 32 KB for SMP
+ 14 => 16 KB for uniprocessor
+ 13 => 8 KB
+ 12 => 4 KB
+
config CPUSETS
bool "Cpuset support"
depends on SMP
diff -puN lib/Kconfig.debug~move-log_buf_shift-to-a-more-sensible-place lib/Kconfig.debug
--- a/lib/Kconfig.debug~move-log_buf_shift-to-a-more-sensible-place
+++ a/lib/Kconfig.debug
@@ -86,23 +86,6 @@ config DEBUG_SHIRQ
Drivers ought to be able to handle interrupts coming in at those
points; some don't and need to be caught.
-config LOG_BUF_SHIFT
- int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" if DEBUG_KERNEL
- range 12 21
- default 17 if S390 || LOCKDEP
- default 16 if X86_NUMAQ || IA64
- default 15 if SMP
- default 14
- help
- Select kernel log buffer size as a power of 2.
- Defaults and Examples:
- 17 => 128 KB for S/390
- 16 => 64 KB for x86 NUMAQ or IA-64
- 15 => 32 KB for SMP
- 14 => 16 KB for uniprocessor
- 13 => 8 KB
- 12 => 4 KB
-
config DETECT_SOFTLOCKUP
bool "Detect Soft Lockups"
depends on DEBUG_KERNEL && !S390
_
Patches currently in -mm which might be from s0348365@xxxxxxxxxxxx are
move-log_buf_shift-to-a-more-sensible-place.patch
-
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