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simplify the stacktrace code

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Simplify the stacktrace code:

 - remove the unused task argument to save_stack_trace, it's always
   current
 - remove the all_contexts flag, it's alwasy 0

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Andi Kleen <ak@suse.de>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig
2007-05-08 00:23:29 -07:00
committed by Linus Torvalds
parent 7e4c3690b0
commit ab1b6f03a1
8 changed files with 28 additions and 61 deletions
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9
arch/sh/kernel/stacktrace.c
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@@ -19,14 +19,7 @@
*/
void save_stack_trace(struct stack_trace *trace, struct task_struct *task)
{
unsigned long *sp;
if (!task)
task = current;
if (task == current)
sp = (unsigned long *)current_stack_pointer;
else
sp = (unsigned long *)task->thread.sp;
unsigned long *sp = (unsigned long *)current_stack_pointer;
while (!kstack_end(sp)) {
unsigned long addr = *sp++;