1 files changed, 0 insertions, 60 deletions
diff --git a/module/spl/spl-rwlock.c b/module/spl/spl-rwlock.c
index 462a6f0de..98251c011 100644
--- a/module/spl/spl-rwlock.c
+++ b/module/spl/spl-rwlock.c
@@ -32,65 +32,5 @@
 
 #define DEBUG_SUBSYSTEM S_RWLOCK
 
-#ifdef CONFIG_RWSEM_GENERIC_SPINLOCK
-
-/*
- * From lib/rwsem-spinlock.c but modified such that the caller is
- * responsible for acquiring and dropping the sem->wait_lock.
- */
-struct rwsem_waiter {
-        struct list_head list;
-        struct task_struct *task;
-        unsigned int flags;
-#define RWSEM_WAITING_FOR_READ  0x00000001
-#define RWSEM_WAITING_FOR_WRITE 0x00000002
-};
-
-/* wake a single writer */
-static struct rw_semaphore *
-__rwsem_wake_one_writer_locked(struct rw_semaphore *sem)
-{
-        struct rwsem_waiter *waiter;
-        struct task_struct *tsk;
-
-        sem->activity = -1;
-
-        waiter = list_entry(sem->wait_list.next, struct rwsem_waiter, list);
-        list_del(&waiter->list);
-
-        tsk = waiter->task;
-        smp_mb();
-        waiter->task = NULL;
-        wake_up_process(tsk);
-        put_task_struct(tsk);
-        return sem;
-}
-
-/* release a read lock on the semaphore */
-void
-__up_read_locked(struct rw_semaphore *sem)
-{
-        if (--sem->activity == 0 && !list_empty(&sem->wait_list))
-                (void)__rwsem_wake_one_writer_locked(sem);
-}
-EXPORT_SYMBOL(__up_read_locked);
-
-/* trylock for writing -- returns 1 if successful, 0 if contention */
-int
-__down_write_trylock_locked(struct rw_semaphore *sem)
-{
-        int ret = 0;
-
-        if (sem->activity == 0 && list_empty(&sem->wait_list)) {
-                sem->activity = -1;
-                ret = 1;
-        }
-
-        return ret;
-}
-EXPORT_SYMBOL(__down_write_trylock_locked);
-
-#endif
-
 int spl_rw_init(void) { return 0; }
 void spl_rw_fini(void) { }