1 files changed, 0 insertions, 139 deletions
diff --git a/arch/sh/kernel/semaphore.c b/arch/sh/kernel/semaphore.c
deleted file mode 100644
index 184119eeae56..000000000000
--- a/arch/sh/kernel/semaphore.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Just taken from alpha implementation.
- * This can't work well, perhaps.
- */
-/*
- *  Generic semaphore code. Buyer beware. Do your own
- * specific changes in <asm/semaphore-helper.h>
- */
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/wait.h>
-#include <linux/init.h>
-#include <asm/semaphore.h>
-#include <asm/semaphore-helper.h>
-DEFINE_SPINLOCK(semaphore_wake_lock);
-/*
- * Semaphores are implemented using a two-way counter:
- * The "count" variable is decremented for each process
- * that tries to sleep, while the "waking" variable is
- * incremented when the "up()" code goes to wake up waiting
- * processes.
- *
- * Notably, the inline "up()" and "down()" functions can
- * efficiently test if they need to do any extra work (up
- * needs to do something only if count was negative before
- * the increment operation.
- *
- * waking_non_zero() (from asm/semaphore.h) must execute
- * atomically.
- *
- * When __up() is called, the count was negative before
- * incrementing it, and we need to wake up somebody.
- *
- * This routine adds one to the count of processes that need to
- * wake up and exit.  ALL waiting processes actually wake up but
- * only the one that gets to the "waking" field first will gate
- * through and acquire the semaphore.  The others will go back
- * to sleep.
- *
- * Note that these functions are only called when there is
- * contention on the lock, and as such all this is the
- * "non-critical" part of the whole semaphore business. The
- * critical part is the inline stuff in <asm/semaphore.h>
- * where we want to avoid any extra jumps and calls.
- */
-void __up(struct semaphore *sem)
-{
-        wake_one_more(sem);
-        wake_up(&sem->wait);
-}
-/*
- * Perform the "down" function.  Return zero for semaphore acquired,
- * return negative for signalled out of the function.
- *
- * If called from __down, the return is ignored and the wait loop is
- * not interruptible.  This means that a task waiting on a semaphore
- * using "down()" cannot be killed until someone does an "up()" on
- * the semaphore.
- *
- * If called from __down_interruptible, the return value gets checked
- * upon return.  If the return value is negative then the task continues
- * with the negative value in the return register (it can be tested by
- * the caller).
- *
- * Either form may be used in conjunction with "up()".
- *
- */
-#define DOWN_VAR                                \
-        struct task_struct *tsk = current;      \
-        wait_queue_t wait;                      \
-        init_waitqueue_entry(&wait, tsk);
-#define DOWN_HEAD(task_state)                                           \
-                                                                        \
-                                                                        \
-        tsk->state = (task_state);                                      \
-        add_wait_queue(&sem->wait, &wait);                              \
-                                                                        \
-        /*                                                              \
-         * Ok, we're set up.  sem->count is known to be less than zero  \
-         * so we must wait.                                             \
-         *                                                              \
-         * We can let go the lock for purposes of waiting.              \
-         * We re-acquire it after awaking so as to protect              \
-         * all semaphore operations.                                    \
-         *                                                              \
-         * If "up()" is called before we call waking_non_zero() then    \
-         * we will catch it right away.  If it is called later then     \
-         * we will have to go through a wakeup cycle to catch it.       \
-         *                                                              \
-         * Multiple waiters contend for the semaphore lock to see       \
-         * who gets to gate through and who has to wait some more.      \
-         */                                                             \
-        for (;;) {
-#define DOWN_TAIL(task_state)                   \
-                tsk->state = (task_state);      \
-        }                                       \
-        tsk->state = TASK_RUNNING;              \
-        remove_wait_queue(&sem->wait, &wait);
-void __sched __down(struct semaphore * sem)
-{
-        DOWN_VAR
-        DOWN_HEAD(TASK_UNINTERRUPTIBLE)
-        if (waking_non_zero(sem))
-                break;
-        schedule();
-        DOWN_TAIL(TASK_UNINTERRUPTIBLE)
-}
-int __sched __down_interruptible(struct semaphore * sem)
-{
-        int ret = 0;
-        DOWN_VAR
-        DOWN_HEAD(TASK_INTERRUPTIBLE)
-        ret = waking_non_zero_interruptible(sem, tsk);
-        if (ret)
-        {
-                if (ret == 1)
-                        /* ret != 0 only if we get interrupted -arca */
-                        ret = 0;
-                break;
-        }
-        schedule();
-        DOWN_TAIL(TASK_INTERRUPTIBLE)
-        return ret;
-}
-int __down_trylock(struct semaphore * sem)
-{
-        return waking_non_zero_trylock(sem);
-}

diff --git a/arch/sh/kernel/semaphore.c b/arch/sh/kernel/semaphore.c deleted file mode 100644 index 184119eeae56..000000000000 --- a/arch/sh/kernel/semaphore.c +++ /dev/null
@@ -1,139 +0,0 @@
1	/*
2	* Just taken from alpha implementation.
3	* This can't work well, perhaps.
4	*/
5	/*
6	* Generic semaphore code. Buyer beware. Do your own
7	* specific changes in <asm/semaphore-helper.h>
8	*/
9
10	#include <linux/errno.h>
11	#include <linux/sched.h>
12	#include <linux/wait.h>
13	#include <linux/init.h>
14	#include <asm/semaphore.h>
15	#include <asm/semaphore-helper.h>
16
17	DEFINE_SPINLOCK(semaphore_wake_lock);
18
19	/*
20	* Semaphores are implemented using a two-way counter:
21	* The "count" variable is decremented for each process
22	* that tries to sleep, while the "waking" variable is
23	* incremented when the "up()" code goes to wake up waiting
24	* processes.
25	*
26	* Notably, the inline "up()" and "down()" functions can
27	* efficiently test if they need to do any extra work (up
28	* needs to do something only if count was negative before
29	* the increment operation.
30	*
31	* waking_non_zero() (from asm/semaphore.h) must execute
32	* atomically.
33	*
34	* When __up() is called, the count was negative before
35	* incrementing it, and we need to wake up somebody.
36	*
37	* This routine adds one to the count of processes that need to
38	* wake up and exit. ALL waiting processes actually wake up but
39	* only the one that gets to the "waking" field first will gate
40	* through and acquire the semaphore. The others will go back
41	* to sleep.
42	*
43	* Note that these functions are only called when there is
44	* contention on the lock, and as such all this is the
45	* "non-critical" part of the whole semaphore business. The
46	* critical part is the inline stuff in <asm/semaphore.h>
47	* where we want to avoid any extra jumps and calls.
48	*/
49	void __up(struct semaphore *sem)
50	{
51	wake_one_more(sem);
52	wake_up(&sem->wait);
53	}
54
55	/*
56	* Perform the "down" function. Return zero for semaphore acquired,
57	* return negative for signalled out of the function.
58	*
59	* If called from __down, the return is ignored and the wait loop is
60	* not interruptible. This means that a task waiting on a semaphore
61	* using "down()" cannot be killed until someone does an "up()" on
62	* the semaphore.
63	*
64	* If called from __down_interruptible, the return value gets checked
65	* upon return. If the return value is negative then the task continues
66	* with the negative value in the return register (it can be tested by
67	* the caller).
68	*
69	* Either form may be used in conjunction with "up()".
70	*
71	*/
72
73	#define DOWN_VAR \
74	struct task_struct *tsk = current; \
75	wait_queue_t wait; \
76	init_waitqueue_entry(&wait, tsk);
77
78	#define DOWN_HEAD(task_state) \
79	\
80	\
81	tsk->state = (task_state); \
82	add_wait_queue(&sem->wait, &wait); \
83	\
84	/* \
85	* Ok, we're set up. sem->count is known to be less than zero \
86	* so we must wait. \
87	* \
88	* We can let go the lock for purposes of waiting. \
89	* We re-acquire it after awaking so as to protect \
90	* all semaphore operations. \
91	* \
92	* If "up()" is called before we call waking_non_zero() then \
93	* we will catch it right away. If it is called later then \
94	* we will have to go through a wakeup cycle to catch it. \
95	* \
96	* Multiple waiters contend for the semaphore lock to see \
97	* who gets to gate through and who has to wait some more. \
98	*/ \
99	for (;;) {
100
101	#define DOWN_TAIL(task_state) \
102	tsk->state = (task_state); \
103	} \
104	tsk->state = TASK_RUNNING; \
105	remove_wait_queue(&sem->wait, &wait);
106
107	void __sched __down(struct semaphore * sem)
108	{
109	DOWN_VAR
110	DOWN_HEAD(TASK_UNINTERRUPTIBLE)
111	if (waking_non_zero(sem))
112	break;
113	schedule();
114	DOWN_TAIL(TASK_UNINTERRUPTIBLE)
115	}
116
117	int __sched __down_interruptible(struct semaphore * sem)
118	{
119	int ret = 0;
120	DOWN_VAR
121	DOWN_HEAD(TASK_INTERRUPTIBLE)
122
123	ret = waking_non_zero_interruptible(sem, tsk);
124	if (ret)
125	{
126	if (ret == 1)
127	/* ret != 0 only if we get interrupted -arca */
128	ret = 0;
129	break;
130	}
131	schedule();
132	DOWN_TAIL(TASK_INTERRUPTIBLE)
133	return ret;
134	}
135
136	int __down_trylock(struct semaphore * sem)
137	{
138	return waking_non_zero_trylock(sem);
139	}