diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2019-11-15 10:30:50 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-11-15 10:30:50 +0100 |
| commit | ac94be498f84f7327533b62faca4c3da64434904 (patch) | |
| tree | 63893f37afb67cd400bf60ec16a35440d16f2a90 /kernel/stacktrace.c | |
| parent | x86/hyperv: Allow guests to enable InvariantTSC (diff) | |
| parent | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm (diff) | |
Merge branch 'linus' into x86/hyperv
Pick up upstream fixes to avoid conflicts.
Diffstat (limited to 'kernel/stacktrace.c')
| -rw-r--r-- | kernel/stacktrace.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c index f5440abb7532..c9ea7eb2cb1a 100644 --- a/kernel/stacktrace.c +++ b/kernel/stacktrace.c @@ -20,7 +20,7 @@ * @nr_entries: Number of entries in the storage array * @spaces: Number of leading spaces to print */ -void stack_trace_print(unsigned long *entries, unsigned int nr_entries, +void stack_trace_print(const unsigned long *entries, unsigned int nr_entries, int spaces) { unsigned int i; @@ -43,7 +43,7 @@ EXPORT_SYMBOL_GPL(stack_trace_print); * * Return: Number of bytes printed. */ -int stack_trace_snprint(char *buf, size_t size, unsigned long *entries, +int stack_trace_snprint(char *buf, size_t size, const unsigned long *entries, unsigned int nr_entries, int spaces) { unsigned int generated, i, total = 0; @@ -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); |