commit 8f98e292eb612956e1add401f28dc76ffea20323
author Linus Torvalds <torvalds@linux-foundation.org> Sun Nov 15 09:34:32 2015 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> Sun Nov 15 09:34:32 2015 -0800
tree 34b769c888e0eeba3b59a66ebf5a0b0b7ee203c4
parent bba072dfd7bf87f0712e569a78ae9c0e91e0a8df
parent b32e1f58c254bd62f8a5852b8b181f6d51df1463

Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull liblockdep fixes from Thomas Gleixner:
 "Three small patches to synchronize liblockdep with the latest core
  changes"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tools/liblockdep: explicitly declare lockdep API we call from liblockdep
  tools/liblockdep: add userspace versions of WRITE_ONCE and RCU_INIT_POINTER
  tools/liblockdep: remove task argument from debug_check_no_locks_held

tools/lib/lockdep/common.c

diff --git a/tools/lib/lockdep/common.c b/tools/lib/lockdep/common.c
index 8ef602f..9be6633 100644
--- a/tools/lib/lockdep/common.c
+++ b/tools/lib/lockdep/common.c
@@ -18,7 +18,7 @@
 
 __attribute__((destructor)) static void liblockdep_exit(void)
 {
-	debug_check_no_locks_held(&current_obj);
+	debug_check_no_locks_held();
 }
 
 struct task_struct *__curr(void)

tools/lib/lockdep/include/liblockdep/common.h

diff --git a/tools/lib/lockdep/include/liblockdep/common.h b/tools/lib/lockdep/include/liblockdep/common.h
index 0bda630..a60c14b 100644
--- a/tools/lib/lockdep/include/liblockdep/common.h
+++ b/tools/lib/lockdep/include/liblockdep/common.h
@@ -43,6 +43,8 @@
 			struct lockdep_map *nest_lock, unsigned long ip);
 void lock_release(struct lockdep_map *lock, int nested,
 			unsigned long ip);
+extern void debug_check_no_locks_freed(const void *from, unsigned long len);
+extern void lockdep_init(void);
 
 #define STATIC_LOCKDEP_MAP_INIT(_name, _key) \
 	{ .name = (_name), .key = (void *)(_key), }

tools/lib/lockdep/uinclude/linux/compiler.h

diff --git a/tools/lib/lockdep/uinclude/linux/compiler.h b/tools/lib/lockdep/uinclude/linux/compiler.h
index 7ac838a..6386dc3 100644
--- a/tools/lib/lockdep/uinclude/linux/compiler.h
+++ b/tools/lib/lockdep/uinclude/linux/compiler.h
@@ -3,5 +3,7 @@
 
 #define __used		__attribute__((__unused__))
 #define unlikely
+#define WRITE_ONCE(x, val) x=(val)
+#define RCU_INIT_POINTER(p, v) p=(v)
 
 #endif

tools/lib/lockdep/uinclude/linux/lockdep.h

diff --git a/tools/lib/lockdep/uinclude/linux/lockdep.h b/tools/lib/lockdep/uinclude/linux/lockdep.h
index c1552c2..c808c7d 100644
--- a/tools/lib/lockdep/uinclude/linux/lockdep.h
+++ b/tools/lib/lockdep/uinclude/linux/lockdep.h
@@ -6,7 +6,7 @@
 #include <string.h>
 #include <limits.h>
 #include <linux/utsname.h>
-
+#include <linux/compiler.h>
 
 #define MAX_LOCK_DEPTH 2000UL
 
@@ -54,5 +54,6 @@
 #define static_obj(x) 1
 
 #define debug_show_all_locks()
+extern void debug_check_no_locks_held(void);
 
 #endif