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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-17 16:35:34 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-17 16:35:34 +0100 |
| commit | 0d579622a3b0bb76742ffa8becc103fe35934dca (patch) | |
| tree | f24110d86855c22f2e06867bafabe6fff94d2e94 /kernel/trace | |
| parent | e30930a6ddb3217f89dee4fd07c3f7532454c359 (diff) | |
| parent | b6fe42bc55af3fb17c8c03def2f8a1f7fa907af6 (diff) | |
Merge v6.18.6linux-rolling-stable
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 304e93597126..142e3b737f0b 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -141,7 +141,7 @@ cpumask_var_t __read_mostly tracing_buffer_mask; * by commas. */ /* Set to string format zero to disable by default */ -char ftrace_dump_on_oops[MAX_TRACER_SIZE] = "0"; +static char ftrace_dump_on_oops[MAX_TRACER_SIZE] = "0"; /* When set, tracing will stop when a WARN*() is hit */ static int __disable_trace_on_warning; @@ -3003,6 +3003,11 @@ static void __ftrace_trace_stack(struct trace_array *tr, struct ftrace_stack *fstack; struct stack_entry *entry; int stackidx; + int bit; + + bit = trace_test_and_set_recursion(_THIS_IP_, _RET_IP_, TRACE_EVENT_START); + if (bit < 0) + return; /* * Add one, for this function and the call to save_stack_trace() @@ -3071,6 +3076,7 @@ static void __ftrace_trace_stack(struct trace_array *tr, /* Again, don't let gcc optimize things here */ barrier(); __this_cpu_dec(ftrace_stack_reserve); + trace_clear_recursion(bit); } static inline void ftrace_trace_stack(struct trace_array *tr, |