From 64dec40ddee9d36d7b83f8a0513fdeaffe260a0e Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Fri, 16 Jan 2009 13:23:35 -0500 Subject: x86: define ARCH_WANT_FRAME_POINTERS Commit da4276b8299a6544dc41ac2485d3ffca5811b3fb changed a dependency for FRAME_POINTER from X86 to ARCH_WANT_FRAME_POINTERS, but didn't actually define it. This patch adds the definition for ARCH_WANT_FRAME_POINTERS. Without it, FRAME_POINTER can't be enabled on x86. Signed-off-by: Jeff Mahoney Signed-off-by: Ingo Molnar --- lib/Kconfig.debug | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'lib') diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 4c9ae60..d30561d 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -570,6 +570,15 @@ config DEBUG_NOTIFIERS This is a relatively cheap check but if you care about maximum performance, say N. +# +# Select this config option from the architecture Kconfig, if it +# it is preferred to always offer frame pointers as a config +# option on the architecture (regardless of KERNEL_DEBUG): +# +config ARCH_WANT_FRAME_POINTERS + bool + help + config FRAME_POINTER bool "Compile the kernel with frame pointers" depends on DEBUG_KERNEL && \ -- cgit v1.1 From 749a440b2218e9937dca8c68e23e51ca4d8d37fe Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Thu, 22 Jan 2009 09:46:38 +0800 Subject: rcu: remove duplicate CONFIG_RCU_CPU_STALL_DETECTOR Impact: remove the old CONFIG_RCU_CPU_STALL_DETECTOR tree_rcu introduce CONFIG_RCU_CPU_STALL_DETECTOR again. These two are the same exactly except: the old one "depends on CLASSIC_RCU" the new one "depends on CLASSIC_RCU || TREE_RCU" This patch remove the old one. Signed-off-by: Lai Jiangshan Signed-off-by: Ingo Molnar --- lib/Kconfig.debug | 13 ------------- 1 file changed, 13 deletions(-) (limited to 'lib') diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 4c9ae60..e770e85f 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -633,19 +633,6 @@ config RCU_TORTURE_TEST_RUNNABLE config RCU_CPU_STALL_DETECTOR bool "Check for stalled CPUs delaying RCU grace periods" - depends on CLASSIC_RCU - default n - help - This option causes RCU to printk information on which - CPUs are delaying the current grace period, but only when - the grace period extends for excessive time periods. - - Say Y if you want RCU to perform such checks. - - Say N if you are unsure. - -config RCU_CPU_STALL_DETECTOR - bool "Check for stalled CPUs delaying RCU grace periods" depends on CLASSIC_RCU || TREE_RCU default n help -- cgit v1.1 From 4ab0a9409af5fad74ad1fc9e46d5a8b460f353e9 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Sat, 10 Jan 2009 21:58:09 -0800 Subject: cpumask: convert lib/smp_processor_id to new cpumask ops Impact: fix debug_smp_processor_id() for CONFIG_CPUMASK_OFFSTACK=y The scheduler now uses the new cpumask API, which deals up to nr_cpumask_bits, whereas the API used NR_CPUS bits. If CONFIG_CPUMASK_OFFSTACK=y these two are not equal, so the top bits are undefined. Leading to bug 12518 "BUG: using smp_processor_id() in preemptible [00000000] code: dellWirelessCtl/..." The fix is simple: use the modern API in the check. Signed-off-by: Rusty Russell Signed-off-by: Mike Travis Signed-off-by: Ingo Molnar --- lib/smp_processor_id.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'lib') diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c index 0f8fc22..4689cb0 100644 --- a/lib/smp_processor_id.c +++ b/lib/smp_processor_id.c @@ -22,7 +22,7 @@ notrace unsigned int debug_smp_processor_id(void) * Kernel threads bound to a single CPU can safely use * smp_processor_id(): */ - if (cpus_equal(current->cpus_allowed, cpumask_of_cpu(this_cpu))) + if (cpumask_equal(¤t->cpus_allowed, cpumask_of(this_cpu))) goto out; /* -- cgit v1.1 From 152de30bced150617e5731a9fe2364c9d04fe26c Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 20 Feb 2009 15:38:47 -0800 Subject: docsrc: use config instead of menuconfig BUILD_DOCSRC should be controlled by "config" instead of "menuconfig". I have no idea how I managed to use "menuconfig" here. Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- lib/Kconfig.debug | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'lib') diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 29044f5..1bcf9cd 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -838,7 +838,7 @@ config FIREWIRE_OHCI_REMOTE_DMA If unsure, say N. -menuconfig BUILD_DOCSRC +config BUILD_DOCSRC bool "Build targets in Documentation/ tree" depends on HEADERS_CHECK help -- cgit v1.1