From: Alistair John Strachan Date: Tue, 8 May 2007 07:31:15 +0000 (-0700) Subject: Move LOG_BUF_SHIFT to a more sensible place X-Git-Tag: v2.6.22-rc1~619 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=794543a236074f49a8af89ef08ef6a753e4777e5;p=linux-2.6 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 Acked-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/init/Kconfig b/init/Kconfig index ebe04f56d8..d0edf42f4d 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 diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 9bd002a004..ee05b8a061 100644 --- a/lib/Kconfig.debug +++ b/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