commit 408894ee4dd4debfdedd472eb4d8414892fc90f6
author Ingo Molnar <mingo@elte.hu> Mon Jan 09 15:59:20 2006 -0800
committer Ingo Molnar <mingo@hera.kernel.org> Mon Jan 09 15:59:20 2006 -0800
tree b324c1086b804cc05c2839f9d9675eef2bc7c949
parent f3f54ffa703c6298240ffd69616451d645bae4d5

[PATCH] mutex subsystem, debugging code

mutex implementation - add debugging code.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@infradead.org>

include/linux/sched.h

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 78eb92a..85b53f8 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -817,6 +817,11 @@
 /* Protection of proc_dentry: nesting proc_lock, dcache_lock, write_lock_irq(&tasklist_lock); */
 	spinlock_t proc_lock;
 
+#ifdef CONFIG_DEBUG_MUTEXES
+	/* mutex deadlock detection */
+	struct mutex_waiter *blocked_on;
+#endif
+
 /* journalling filesystem info */
 	void *journal_info;