Commit e3c48078 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

Define __raw_read_can_lock / __raw_write_can_lock.


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent f638d197
......@@ -119,6 +119,18 @@ static inline unsigned int __raw_spin_trylock(raw_spinlock_t *lock)
* 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)
{
unsigned int tmp;
......
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