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stacktrace: print_stack_trace() cleanup

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- 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>
This commit is contained in:
Vegard Nossum 2008-06-13 11:00:14 +02:00 committed by Ingo Molnar
parent 886dd58258
commit a5a242dcee
1 changed files with 3 additions and 6 deletions
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9
kernel/stacktrace.c
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@ -11,17 +11,14 @@
void print_stack_trace(struct stack_trace *trace, int spaces) void print_stack_trace(struct stack_trace *trace, int spaces)
{ {
int i, j; int i;
if (WARN_ON(!trace->entries)) if (WARN_ON(!trace->entries))
return; return;
for (i = 0; i < trace->nr_entries; i++) { for (i = 0; i < trace->nr_entries; i++) {
unsigned long ip = trace->entries[i]; printk("%*c", 1 + spaces, ' ');
print_ip_sym(trace->entries[i]);
for (j = 0; j < spaces + 1; j++)
printk(" ");
print_ip_sym(ip);
} }
} }