#include <linux/osq_lock.h>
#include <linux/debug_locks.h>
+struct ww_acquire_ctx;
+
/*
* Simple, straightforward mutexes with strict semantics:
*
static inline struct task_struct *__mutex_owner(struct mutex *lock)
{
- return (struct task_struct *)(atomic_long_read(&lock->owner) & ~0x03);
+ return (struct task_struct *)(atomic_long_read(&lock->owner) & ~0x07);
}
/*
struct mutex_waiter {
struct list_head list;
struct task_struct *task;
+ struct ww_acquire_ctx *ww_ctx;
#ifdef CONFIG_DEBUG_MUTEXES
void *magic;
#endif
# define mutex_lock_interruptible_nested(lock, subclass) mutex_lock_interruptible(lock)
# define mutex_lock_killable_nested(lock, subclass) mutex_lock_killable(lock)
# define mutex_lock_nest_lock(lock, nest_lock) mutex_lock(lock)
-# define mutex_lock_nest_io(lock, nest_lock) mutex_io(lock)
+# define mutex_lock_io_nested(lock, subclass) mutex_lock(lock)
#endif
/*