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| author | Felix Blyakher <felixb@sgi.com> | 2009-02-09 09:34:45 -0600 |
|---|---|---|
| committer | Felix Blyakher <felixb@sgi.com> | 2009-02-09 09:34:45 -0600 |
| commit | d41d4113f49e16bfab02eff0248282200be21807 (patch) | |
| tree | ae84803c22a09f138023ef62de73712f324bc62d /kernel/trace/ftrace.c | |
| parent | b58a4cc51f4f569c6a86979890f9b237a504ab6b (diff) | |
| parent | d5b562330ec766292a3ac54ae5e0673610bd5b3d (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'kernel/trace/ftrace.c')
| -rw-r--r-- | kernel/trace/ftrace.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 7dcf6e9f2b0..9a236ffe2aa 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1737,9 +1737,12 @@ static void clear_ftrace_pid(struct pid *pid) { struct task_struct *p; + rcu_read_lock(); do_each_pid_task(pid, PIDTYPE_PID, p) { clear_tsk_trace_trace(p); } while_each_pid_task(pid, PIDTYPE_PID, p); + rcu_read_unlock(); + put_pid(pid); } @@ -1747,9 +1750,11 @@ static void set_ftrace_pid(struct pid *pid) { struct task_struct *p; + rcu_read_lock(); do_each_pid_task(pid, PIDTYPE_PID, p) { set_tsk_trace_trace(p); } while_each_pid_task(pid, PIDTYPE_PID, p); + rcu_read_unlock(); } static void clear_ftrace_pid_task(struct pid **pid) |