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| author | Alistair John Strachan <s0348365@sms.ed.ac.uk> | 2007-05-08 00:31:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:15:14 -0700 |
| commit | 794543a236074f49a8af89ef08ef6a753e4777e5 (patch) | |
| tree | b96007b74a00fd49b2849a4ba5ad1d796b84c0c9 /init | |
| parent | 63f6564d351fb2e7222e43b6dd22737edf9f4a91 (diff) | |
| download | linux-stable-794543a236074f49a8af89ef08ef6a753e4777e5.tar.gz linux-stable-794543a236074f49a8af89ef08ef6a753e4777e5.tar.bz2 linux-stable-794543a236074f49a8af89ef08ef6a753e4777e5.zip | |
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/Kconfig | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index ebe04f56d834..d0edf42f4dba 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 |