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| author | Vineet Gupta <vgupta@synopsys.com> | 2013-09-06 10:48:17 +0200 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2013-11-06 06:11:40 +0100 |
| commit | 0dafafc3ef42bad34fd446725cb9778c3bdd83a8 (patch) | |
| tree | 2f61f879b892afe3001fdf7a5d93da40b4d532a8 /arch/arc/kernel/stacktrace.c | |
| parent | ARC: Reset the value of Interrupt Priority Register (diff) | |
| download | linux-0dafafc3ef42bad34fd446725cb9778c3bdd83a8.tar.xz linux-0dafafc3ef42bad34fd446725cb9778c3bdd83a8.zip | |
ARC: Add support for irqflags tracing and lockdep
Lockdep required a small fix to stacktrace API which was incorrectly
unwindign out of __switch_to for the current call frame.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/kernel/stacktrace.c')
| -rw-r--r-- | arch/arc/kernel/stacktrace.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c index f8b7d880304d..ab97b034922f 100644 --- a/arch/arc/kernel/stacktrace.c +++ b/arch/arc/kernel/stacktrace.c @@ -237,11 +237,13 @@ unsigned int get_wchan(struct task_struct *tsk) */ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) { + /* Assumes @tsk is sleeping so unwinds from __switch_to */ arc_unwind_core(tsk, NULL, __collect_all_but_sched, trace); } void save_stack_trace(struct stack_trace *trace) { - arc_unwind_core(current, NULL, __collect_all, trace); + /* Pass NULL for task so it unwinds the current call frame */ + arc_unwind_core(NULL, NULL, __collect_all, trace); } #endif |