Define __raw_read_can_lock / __raw_write_can_lock. (e3c48078) · Commits · e / devices / android_kernel_xiaomi_markw

include/asm-mips/spinlock.h

+12 −0

Original line number	Original line	Diff line number	Diff line
	@@ -119,6 +119,18 @@ static inline unsigned int __raw_spin_trylock(raw_spinlock_t *lock)
	* read-locks.		* read-locks.
	*/		*/

			/*
			* read_can_lock - would read_trylock() succeed?
			* @lock: the rwlock in question.
			*/
			#define __raw_read_can_lock(rw) ((rw)->lock >= 0)

			/*
			* write_can_lock - would write_trylock() succeed?
			* @lock: the rwlock in question.
			*/
			#define __raw_write_can_lock(rw) (!(rw)->lock)

	static inline void __raw_read_lock(raw_rwlock_t *rw)		static inline void __raw_read_lock(raw_rwlock_t *rw)
	{		{
	unsigned int tmp;		unsigned int tmp;