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| author | Ingo Molnar <mingo@elte.hu> | 2011-01-09 10:42:21 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-01-09 10:42:21 +0100 |
| commit | 4385428a477559b26736cc3c80d8b68f31126c71 (patch) | |
| tree | 8eb0cbc78e79c368687fa13a1e0674ae537f830f /kernel/trace/trace.c | |
| parent | 047a3772feaae8e43d81d790f3d3f80dae8ae676 (diff) | |
| parent | 2d75af2f2a7a6103a6d539a492fe81deacabde44 (diff) | |
| download | blackbird-op-linux-4385428a477559b26736cc3c80d8b68f31126c71.tar.gz blackbird-op-linux-4385428a477559b26736cc3c80d8b68f31126c71.zip | |
Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/urgent
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index f8cf959bad45..dc53ecb80589 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1313,12 +1313,10 @@ ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags, int pc) __this_cpu_inc(user_stack_count); - - event = trace_buffer_lock_reserve(buffer, TRACE_USER_STACK, sizeof(*entry), flags, pc); if (!event) - return; + goto out_drop_count; entry = ring_buffer_event_data(event); entry->tgid = current->tgid; @@ -1333,8 +1331,8 @@ ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags, int pc) if (!filter_check_discard(call, entry, buffer, event)) ring_buffer_unlock_commit(buffer, event); + out_drop_count: __this_cpu_dec(user_stack_count); - out: preempt_enable(); } |
