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authorZhenyu Wang <zhenyuw@linux.intel.com>2020-02-20 16:23:37 +0800
committerZhenyu Wang <zhenyuw@linux.intel.com>2020-02-20 16:23:37 +0800
commitc95baf12f5077419db01313ab61c2aac007d40cd (patch)
tree8c2aed3b89aecfb100b0546b601b7c7ae513a974 /kernel/stacktrace.c
parentdrm/i915/gvt: remove unused vblank_done completion (diff)
parentdrm/i915/dp: Add all tiled and port sync conns to modeset (diff)
Merge drm-intel-next-queued into gvt-next
Backmerge to pull in https://patchwork.freedesktop.org/patch/353621/?series=73544&rev=1 Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'kernel/stacktrace.c')
-rw-r--r--kernel/stacktrace.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index 6d1f68b7e528..2af66e449aa6 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -141,7 +141,8 @@ unsigned int stack_trace_save_tsk(struct task_struct *tsk, unsigned long *store,
struct stacktrace_cookie c = {
.store = store,
.size = size,
- .skip = skipnr + 1,
+ /* skip this function if they are tracing us */
+ .skip = skipnr + (current == tsk),
};
if (!try_get_task_stack(tsk))
@@ -298,7 +299,8 @@ unsigned int stack_trace_save_tsk(struct task_struct *task,
struct stack_trace trace = {
.entries = store,
.max_entries = size,
- .skip = skipnr + 1,
+ /* skip this function if they are tracing us */
+ .skip = skipnr + (current == task),
};
save_stack_trace_tsk(task, &trace);