stacktrace: print_stack_trace() cleanup
- shorter code and better atomicity with regards to printk().
(It's been tested with the backtrace self-test code on i386 and x86_64.)
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index 0914d0c..7eaea9d 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -11,17 +11,14 @@
void print_stack_trace(struct stack_trace *trace, int spaces)
{
- int i, j;
+ int i;
if (WARN_ON(!trace->entries))
return;
for (i = 0; i < trace->nr_entries; i++) {
- unsigned long ip = trace->entries[i];
-
- for (j = 0; j < spaces + 1; j++)
- printk(" ");
- print_ip_sym(ip);
+ printk("%*c", 1 + spaces, ' ');
+ print_ip_sym(trace->entries[i]);
}
}