[PATCH 1/5] dump_stack: pass log level to dump_stack_print_info()

[aris@redhat.com]

[-- Attachment #1: 0001-dump_stack-pass-log-level-to-dump_stack_print_info.patch --]
[-- Type: text/plain, Size: 1754 bytes --]

This is in preparation for dump_stack_lvl() which will allow the log level to
be passed.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Greg Thelen <gthelen@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Aristeu Rozanski <aris@redhat.com>

---
 lib/dump_stack.c |   16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

--- linux-2.6.orig/lib/dump_stack.c	2015-11-05 13:56:08.387048346 -0500
+++ linux-2.6/lib/dump_stack.c	2015-11-05 13:56:34.900748897 -0500
@@ -9,9 +9,9 @@
 #include <linux/smp.h>
 #include <linux/atomic.h>
 
-static void __dump_stack(void)
+static void __dump_stack(char *log_lvl)
 {
-	dump_stack_print_info(KERN_DEFAULT);
+	dump_stack_print_info(log_lvl);
 	show_stack(NULL, NULL);
 }
 
@@ -23,7 +23,7 @@ static void __dump_stack(void)
 #ifdef CONFIG_SMP
 static atomic_t dump_lock = ATOMIC_INIT(-1);
 
-asmlinkage __visible void dump_stack(void)
+static void _dump_stack(char *log_lvl)
 {
 	int was_locked;
 	int old;
@@ -47,17 +47,23 @@ was_locked = 0;
 		goto retry;
 	}
 
-	__dump_stack();
+	__dump_stack(log_lvl);
 
 	if (!was_locked)
 		atomic_set(&dump_lock, -1);
 
 	preempt_enable();
 }
+
+asmlinkage __visible void dump_stack(void)
+{
+	_dump_stack(KERN_DEFAULT);
+}
+
 #else
 asmlinkage __visible void dump_stack(void)
 {
-	__dump_stack();
+	__dump_stack(KERN_DEFAULT);
 }
 #endif
 EXPORT_SYMBOL(dump_stack);

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