Merge branch 'amd-iommu/2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into core/iommu

2 files changed, 15 insertions, 5 deletions

diff --git a/init/Kconfig b/init/Kconfig
index cb2c09270226..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"
+        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.)
 
 endmenu
 
diff --git a/init/main.c b/init/main.c
index 2c5ade79eb81..11f4f145be3f 100644
--- a/init/main.c
+++ b/init/main.c
@@ -584,8 +584,8 @@ asmlinkage void __init start_kernel(void)
         setup_arch(&command_line);
         mm_init_owner(&init_mm, &init_task);
         setup_command_line(command_line);
-        setup_per_cpu_areas();
         setup_nr_cpu_ids();
+        setup_per_cpu_areas();
         smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */
 
         build_all_zonelists();
@@ -733,13 +733,14 @@ static void __init do_ctors(void)
 int initcall_debug;
 core_param(initcall_debug, initcall_debug, bool, 0644);
 
+static char msgbuf[64];
+static struct boot_trace_call call;
+static struct boot_trace_ret ret;
+
 int do_one_initcall(initcall_t fn)
 {
         int count = preempt_count();
         ktime_t calltime, delta, rettime;
-        char msgbuf[64];
-        struct boot_trace_call call;
-        struct boot_trace_ret ret;
 
         if (initcall_debug) {
                 call.caller = task_pid_nr(current);