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authorLinus Torvalds <torvalds@linux-foundation.org>2011-12-09 08:07:24 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-12-09 08:07:24 -0800
commit975e32c287a9b144cf115d3f42ca18664b3331df (patch)
treec45cb3cd1bcaf2d09efeeaec192d344c898f2c70 /kernel
parent031af165b1cd295ef04d2bfbcae9bc3cb9180735 (diff)
parent167e33c32845a30368463dac5a4fe2be5edcc34a (diff)
downloadlinux-975e32c287a9b144cf115d3f42ca18664b3331df.tar.bz2
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Do no try to schedule task events if there are none lockdep, kmemcheck: Annotate ->lock in lockdep_init_map() perf header: Use event_name() to get an event name perf stat: Failure with "Operation not supported"
Diffstat (limited to 'kernel')
-rw-r--r--kernel/events/core.c4
-rw-r--r--kernel/lockdep.c8
2 files changed, 9 insertions, 3 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 600c1629b64d..d3b9df5962c2 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -2174,11 +2174,11 @@ static void perf_event_context_sched_in(struct perf_event_context *ctx,
*/
cpu_ctx_sched_out(cpuctx, EVENT_FLEXIBLE);
- perf_event_sched_in(cpuctx, ctx, task);
-
if (ctx->nr_events)
cpuctx->task_ctx = ctx;
+ perf_event_sched_in(cpuctx, cpuctx->task_ctx, task);
+
perf_pmu_enable(ctx->pmu);
perf_ctx_unlock(cpuctx, ctx);
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index e69434b070da..b2e08c932d91 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -44,6 +44,7 @@
#include <linux/stringify.h>
#include <linux/bitops.h>
#include <linux/gfp.h>
+#include <linux/kmemcheck.h>
#include <asm/sections.h>
@@ -2948,7 +2949,12 @@ static int mark_lock(struct task_struct *curr, struct held_lock *this,
void lockdep_init_map(struct lockdep_map *lock, const char *name,
struct lock_class_key *key, int subclass)
{
- memset(lock, 0, sizeof(*lock));
+ int i;
+
+ kmemcheck_mark_initialized(lock, sizeof(*lock));
+
+ for (i = 0; i < NR_LOCKDEP_CACHING_CLASSES; i++)
+ lock->class_cache[i] = NULL;
#ifdef CONFIG_LOCK_STAT
lock->cpu = raw_smp_processor_id();