/*
* wait for the read lock to be granted
*/
+__visible
struct rw_semaphore __sched *rwsem_down_read_failed(struct rw_semaphore *sem)
{
long count, adjustment = -RWSEM_ACTIVE_READ_BIAS;
/*
* wait until we successfully acquire the write lock
*/
+__visible
struct rw_semaphore __sched *rwsem_down_write_failed(struct rw_semaphore *sem)
{
long count, adjustment = -RWSEM_ACTIVE_WRITE_BIAS;
* handle waking up a waiter on the semaphore
* - up_read/up_write has decremented the active part of count if we come here
*/
+__visible
struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem)
{
unsigned long flags;
* - caller incremented waiting part of count and discovered it still negative
* - just wake up any readers at the front of the queue
*/
+__visible
struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem)
{
unsigned long flags;