diff options
| author | Shengming Hu <hu.shengming@zte.com.cn> | 2026-02-21 11:30:07 +0800 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2026-03-03 22:10:37 -0500 |
| commit | 6ca8379b5d36e22b04e6315c3e49a6083377c862 (patch) | |
| tree | cde9af8c9e21fa9aee322c2af895ce39a828bf2e /include | |
| parent | 11439c4635edd669ae435eec308f4ab8a0804808 (diff) | |
fgraph: Fix thresh_return clear per-task notrace
When tracing_thresh is enabled, function graph tracing uses
trace_graph_thresh_return() as the return handler. Unlike
trace_graph_return(), it did not clear the per-task TRACE_GRAPH_NOTRACE
flag set by the entry handler for set_graph_notrace addresses. This could
leave the task permanently in "notrace" state and effectively disable
function graph tracing for that task.
Mirror trace_graph_return()'s per-task notrace handling by clearing
TRACE_GRAPH_NOTRACE and returning early when set.
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260221113007819YgrZsMGABff4Rc-O_fZxL@zte.com.cn
Fixes: b84214890a9bc ("function_graph: Move graph notrace bit to shadow stack global var")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Shengming Hu <hu.shengming@zte.com.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions