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>

1 files changed, 2 insertions, 4 deletions

diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
index 50e2b01e517c..1d2b084c0185 100644
--- a/include/linux/stacktrace.h
+++ b/include/linux/stacktrace.h
@@ -6,15 +6,13 @@ struct stack_trace {
         unsigned int nr_entries, max_entries;
         unsigned long *entries;
         int skip;       /* input argument: How many entries to skip */
-        int all_contexts; /* input argument: if true do than one stack */
 };
 
-extern void save_stack_trace(struct stack_trace *trace,
-                             struct task_struct *task);
+extern void save_stack_trace(struct stack_trace *trace);
 
 extern void print_stack_trace(struct stack_trace *trace, int spaces);
 #else
-# define save_stack_trace(trace, task)                  do { } while (0)
+# define save_stack_trace(trace)                        do { } while (0)
 # define print_stack_trace(trace)                       do { } while (0)
 #endif