diff options
Diffstat (limited to 'kernel/stacktrace.c')
| -rw-r--r-- | kernel/stacktrace.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c index 9c625257023d..afb3c116da91 100644 --- a/kernel/stacktrace.c +++ b/kernel/stacktrace.c @@ -126,7 +126,7 @@ EXPORT_SYMBOL_GPL(stack_trace_save); /** * stack_trace_save_tsk - Save a task stack trace into a storage array - * @task: The task to examine + * @tsk: The task to examine * @store: Pointer to storage array * @size: Size of the storage array * @skipnr: Number of entries to skip at the start of the stack trace @@ -151,6 +151,7 @@ unsigned int stack_trace_save_tsk(struct task_struct *tsk, unsigned long *store, put_task_stack(tsk); return c.len; } +EXPORT_SYMBOL_GPL(stack_trace_save_tsk); /** * stack_trace_save_regs - Save a stack trace based on pt_regs into a storage array @@ -226,15 +227,12 @@ unsigned int stack_trace_save_user(unsigned long *store, unsigned int size) .store = store, .size = size, }; - mm_segment_t fs; /* Trace user stack if not a kernel thread */ if (current->flags & PF_KTHREAD) return 0; - fs = force_uaccess_begin(); arch_stack_walk_user(consume_entry, &c, task_pt_regs(current)); - force_uaccess_end(fs); return c.len; } @@ -304,6 +302,7 @@ unsigned int stack_trace_save_tsk(struct task_struct *task, save_stack_trace_tsk(task, &trace); return trace.nr_entries; } +EXPORT_SYMBOL_GPL(stack_trace_save_tsk); /** * stack_trace_save_regs - Save a stack trace based on pt_regs into a storage array |