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| author | Ingo Molnar <mingo@elte.hu> | 2010-01-13 09:58:37 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-01-13 10:08:50 +0100 |
| commit | 61405fea92c42d072d9b8bd189689f1502a838af (patch) | |
| tree | 013ea3e7ed71f4114004d5852d40b6e89e128f76 /kernel/perf_event.c | |
| parent | 9c443dfdd31eddea6cbe6ee0ca469fbcc4e1dc3b (diff) | |
| parent | 1703f2c321a8a531c393e137a82602e16c6061cb (diff) | |
| download | linux-61405fea92c42d072d9b8bd189689f1502a838af.tar.gz | |
Merge branch 'perf/urgent' into perf/core
Merge reason: queue up dependent patch, update to -rc4 Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/perf_event.c')
| -rw-r--r-- | kernel/perf_event.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 5b987b4a98a8..27f69a04541d 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -1618,7 +1618,7 @@ static struct perf_event_context *find_get_context(pid_t pid, int cpu) * offline CPU and activate it when the CPU comes up, but * that's for later. */ - if (!cpu_isset(cpu, cpu_online_map)) + if (!cpu_online(cpu)) return ERR_PTR(-ENODEV); cpuctx = &per_cpu(perf_cpu_context, cpu); @@ -4725,7 +4725,7 @@ SYSCALL_DEFINE5(perf_event_open, if (IS_ERR(event)) goto err_put_context; - err = anon_inode_getfd("[perf_event]", &perf_fops, event, 0); + err = anon_inode_getfd("[perf_event]", &perf_fops, event, O_RDWR); if (err < 0) goto err_free_put_context; @@ -5149,7 +5149,7 @@ int perf_event_init_task(struct task_struct *child) GFP_KERNEL); if (!child_ctx) { ret = -ENOMEM; - goto exit; + break; } __perf_event_init_context(child_ctx, child); @@ -5165,7 +5165,7 @@ int perf_event_init_task(struct task_struct *child) } } - if (inherited_all) { + if (child_ctx && inherited_all) { /* * Mark the child context as a clone of the parent * context, or of whatever the parent is a clone of. @@ -5185,7 +5185,6 @@ int perf_event_init_task(struct task_struct *child) get_ctx(child_ctx->parent_ctx); } -exit: mutex_unlock(&parent_ctx->mutex); perf_unpin_context(parent_ctx); |