Commit 8f98e292 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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
parents bba072df b32e1f58

tools/lib/lockdep/common.c

+1 −1
Original line number Diff line number Diff line
@@ -18,7 +18,7 @@ __attribute__((constructor)) static void liblockdep_init(void) 


__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

+2 −0
Original line number Diff line number Diff line
@@ -43,6 +43,8 @@ void lock_acquire(struct lockdep_map *lock, unsigned int subclass, 
			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

+2 −0
Original line number Diff line number Diff line
@@ -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

+2 −1
Original line number Diff line number Diff line
@@ -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 @@ static struct new_utsname *init_utsname(void) 
#define static_obj(x) 1



#define debug_show_all_locks()

extern void debug_check_no_locks_held(void);



#endif

CRA Git | Maintained and supported by SUSTech CRA and CCSE