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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-10 19:58:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-10 19:58:10 -0700
commit991ec02cdca33b03a132a0cacfe6f0aa0be9aa8d (patch)
tree50b5f4e2b9f138da57f76eca44fdcc80a2fcd428 /kernel/fork.c
parent862366118026a358882eefc70238dbcc3db37aac (diff)
parent84047e360af0394ac5861d433f26bbcf30f77dd1 (diff)
Merge branch 'tracing-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: function-graph: always initialize task ret_stack function-graph: move initialization of new tasks up in fork function-graph: add memory barriers for accessing task's ret_stack function-graph: enable the stack after initialization of other variables function-graph: only allocate init tasks if it was not already done Manually fix trivial conflict in kernel/trace/ftrace.c
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 5449efbc642..bb762b4dd21 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -981,6 +981,8 @@ static struct task_struct *copy_process(unsigned long clone_flags,
if (!p)
goto fork_out;
+ ftrace_graph_init_task(p);
+
rt_mutex_init_task(p);
#ifdef CONFIG_PROVE_LOCKING
@@ -1130,8 +1132,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
}
}
- ftrace_graph_init_task(p);
-
p->pid = pid_nr(pid);
p->tgid = p->pid;
if (clone_flags & CLONE_THREAD)
@@ -1140,7 +1140,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
if (current->nsproxy != p->nsproxy) {
retval = ns_cgroup_clone(p, pid);
if (retval)
- goto bad_fork_free_graph;
+ goto bad_fork_free_pid;
}
p->set_child_tid = (clone_flags & CLONE_CHILD_SETTID) ? child_tidptr : NULL;
@@ -1232,7 +1232,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
spin_unlock(&current->sighand->siglock);
write_unlock_irq(&tasklist_lock);
retval = -ERESTARTNOINTR;
- goto bad_fork_free_graph;
+ goto bad_fork_free_pid;
}
if (clone_flags & CLONE_THREAD) {
@@ -1267,8 +1267,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
cgroup_post_fork(p);
return p;
-bad_fork_free_graph:
- ftrace_graph_exit_task(p);
bad_fork_free_pid:
if (pid != &init_struct_pid)
free_pid(pid);