From ab1b6f03a10ba1f5638188ab06bf46e33ac3a160 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 8 May 2007 00:23:29 -0700
Subject: simplify the stacktrace code
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>
---
arch/x86_64/kernel/stacktrace.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
(limited to 'arch/x86_64')
diff --git a/arch/x86_64/kernel/stacktrace.c b/arch/x86_64/kernel/stacktrace.c
index 65ac2c6b34a..cb910911358 100644
--- a/arch/x86_64/kernel/stacktrace.c
+++ b/arch/x86_64/kernel/stacktrace.c
@@ -21,8 +21,7 @@ save_stack_warning_symbol(void *data, char *msg, unsigned long symbol)
static int save_stack_stack(void *data, char *name)
{
- struct stack_trace *trace = (struct stack_trace *)data;
- return trace->all_contexts ? 0 : -1;
+ return -1;
}
static void save_stack_address(void *data, unsigned long addr)
@@ -46,11 +45,10 @@ static struct stacktrace_ops save_stack_ops = {
/*
* Save stack-backtrace addresses into a stack_trace buffer.
*/
-void save_stack_trace(struct stack_trace *trace, struct task_struct *task)
+void save_stack_trace(struct stack_trace *trace)
{
- dump_trace(task, NULL, NULL, &save_stack_ops, trace);
+ dump_trace(current, NULL, NULL, &save_stack_ops, trace);
if (trace->nr_entries < trace->max_entries)
trace->entries[trace->nr_entries++] = ULONG_MAX;
}
EXPORT_SYMBOL(save_stack_trace);
-
--
cgit