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authorTejun Heo <tj@kernel.org>2009-08-14 14:41:02 +0900
committerTejun Heo <tj@kernel.org>2009-08-14 14:45:31 +0900
commit384be2b18a5f9475eab9ca2bdfa95cc1a04ef59c (patch)
tree04c93f391a1b65c8bf8d7ba8643c07d26c26590a /init/Kconfig
parenta76761b621bcd8336065c4fe3a74f046858bc34c (diff)
parent142d44b0dd6741a64a7bdbe029110e7c1dcf1d23 (diff)
downloadblackbird-op-linux-384be2b18a5f9475eab9ca2bdfa95cc1a04ef59c.tar.gz
blackbird-op-linux-384be2b18a5f9475eab9ca2bdfa95cc1a04ef59c.zip
Merge branch 'percpu-for-linus' into percpu-for-next
Conflicts: arch/sparc/kernel/smp_64.c arch/x86/kernel/cpu/perf_counter.c arch/x86/kernel/setup_percpu.c drivers/cpufreq/cpufreq_ondemand.c mm/percpu.c Conflicts in core and arch percpu codes are mostly from commit ed78e1e078dd44249f88b1dd8c76dafb39567161 which substituted many num_possible_cpus() with nr_cpu_ids. As for-next branch has moved all the first chunk allocators into mm/percpu.c, the changes are moved from arch code to mm/percpu.c. Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'init/Kconfig')
-rw-r--r--init/Kconfig13
1 files changed, 11 insertions, 2 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 1ce05a4cb5f6..3f7e60995c80 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -940,6 +940,7 @@ menu "Performance Counters"
config PERF_COUNTERS
bool "Kernel Performance Counters"
+ default y if PROFILING
depends on HAVE_PERF_COUNTERS
select ANON_INODES
help
@@ -961,9 +962,17 @@ config PERF_COUNTERS
Say Y if unsure.
config EVENT_PROFILE
- bool "Tracepoint profile sources"
- depends on PERF_COUNTERS && EVENT_TRACER
+ bool "Tracepoint profiling sources"
+ depends on PERF_COUNTERS && EVENT_TRACING
default y
+ help
+ Allow the use of tracepoints as software performance counters.
+
+ When this is enabled, you can create perf counters based on
+ tracepoints using PERF_TYPE_TRACEPOINT and the tracepoint ID
+ found in debugfs://tracing/events/*/*/id. (The -e/--events
+ option to the perf tool can parse and interpret symbolic
+ tracepoints, in the subsystem:tracepoint_name format.)
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