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authorAlistair John Strachan <s0348365@sms.ed.ac.uk>2007-05-08 00:31:15 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 11:15:14 -0700
commit794543a236074f49a8af89ef08ef6a753e4777e5 (patch)
treeb96007b74a00fd49b2849a4ba5ad1d796b84c0c9 /init
parent63f6564d351fb2e7222e43b6dd22737edf9f4a91 (diff)
downloadlinux-794543a236074f49a8af89ef08ef6a753e4777e5.tar.gz
Move LOG_BUF_SHIFT to a more sensible place
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@sms.ed.ac.uk> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig17
1 files changed, 17 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index ebe04f56d83..d0edf42f4db 100644
--- a/init/Kconfig
+++ b/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