diff options
Diffstat (limited to 'arch/x86/kernel/process.c')
| -rw-r--r-- | arch/x86/kernel/process.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 266962547b58..cd426c3283ee 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -943,10 +943,13 @@ unsigned long arch_randomize_brk(struct mm_struct *mm) * because the task might wake up and we might look at a stack * changing under us. */ -unsigned long __get_wchan(struct task_struct *p) +unsigned long get_wchan(struct task_struct *p) { unsigned long entry = 0; + if (p == current || task_is_running(p)) + return 0; + stack_trace_save_tsk(p, &entry, 1, 0); return entry; } |