From 8042f26d52ea0a20ecb50c7bf5e00ead7ca5e2bf Mon Sep 17 00:00:00 2001
From: David Xu <davidxu@FreeBSD.org>
Date: Fri, 13 Oct 2006 22:31:00 +0000
Subject: [PATCH] o Make _thr_umutex_init a function. o Eliminate unused
 parameter for some functions. o Convert type of first parameter to void * for
 _thr_umtx_wait   and _thr_umtx_wake.

---
 lib/libthr/thread/thr_umtx.c | 20 ++++++++++++++------
 lib/libthr/thread/thr_umtx.h | 24 +++++++++---------------
 2 files changed, 23 insertions(+), 21 deletions(-)

diff --git a/lib/libthr/thread/thr_umtx.c b/lib/libthr/thread/thr_umtx.c
index ec19ae92b57..cc3cb9d88b3 100644
--- a/lib/libthr/thread/thr_umtx.c
+++ b/lib/libthr/thread/thr_umtx.c
@@ -30,8 +30,16 @@
 #include "thr_private.h"
 #include "thr_umtx.h"
 
+void
+_thr_umutex_init(struct umutex *mtx)
+{
+	static struct umutex default_mtx = DEFAULT_UMUTEX;
+
+	*mtx = default_mtx;
+}
+
 int
-__thr_umutex_lock(struct umutex *mtx, uint32_t id)
+__thr_umutex_lock(struct umutex *mtx)
 {
 	if (_umtx_op(mtx, UMTX_OP_MUTEX_LOCK, 0, 0, 0) == 0)
 		return 0;
@@ -39,7 +47,7 @@ __thr_umutex_lock(struct umutex *mtx, uint32_t id)
 }
 
 int
-__thr_umutex_timedlock(struct umutex *mtx, uint32_t id,
+__thr_umutex_timedlock(struct umutex *mtx,
 	const struct timespec *timeout)
 {
 	if (timeout && (timeout->tv_sec < 0 || (timeout->tv_sec == 0 &&
@@ -52,7 +60,7 @@ __thr_umutex_timedlock(struct umutex *mtx, uint32_t id,
 }
 
 int
-__thr_umutex_unlock(struct umutex *mtx, uint32_t id)
+__thr_umutex_unlock(struct umutex *mtx)
 {
 	if (_umtx_op(mtx, UMTX_OP_MUTEX_UNLOCK, 0, 0, 0) == 0)
 		return (0);
@@ -60,7 +68,7 @@ __thr_umutex_unlock(struct umutex *mtx, uint32_t id)
 }
 
 int
-__thr_umutex_kern_trylock(struct umutex *mtx)
+__thr_umutex_trylock(struct umutex *mtx)
 {
 	if (_umtx_op(mtx, UMTX_OP_MUTEX_TRYLOCK, 0, 0, 0) == 0)
 		return (0);
@@ -82,7 +90,7 @@ _thr_umtx_wait(volatile umtx_t *mtx, long id, const struct timespec *timeout)
 	if (timeout && (timeout->tv_sec < 0 || (timeout->tv_sec == 0 &&
 		timeout->tv_nsec <= 0)))
 		return (ETIMEDOUT);
-	if (_umtx_op(__DEVOLATILE(struct umtx *, mtx), UMTX_OP_WAIT, id, 0,
+	if (_umtx_op(__DEVOLATILE(void *, mtx), UMTX_OP_WAIT, id, 0,
 		__DECONST(void*, timeout)) == 0)
 		return (0);
 	return (errno);
@@ -91,7 +99,7 @@ _thr_umtx_wait(volatile umtx_t *mtx, long id, const struct timespec *timeout)
 int
 _thr_umtx_wake(volatile umtx_t *mtx, int nr_wakeup)
 {
-	if (_umtx_op(__DEVOLATILE(struct umtx *, mtx), UMTX_OP_WAKE,
+	if (_umtx_op(__DEVOLATILE(void *, mtx), UMTX_OP_WAKE,
 		nr_wakeup, 0, 0) == 0)
 		return (0);
 	return (errno);
diff --git a/lib/libthr/thread/thr_umtx.h b/lib/libthr/thread/thr_umtx.h
index de958ee1bf5..4f7c06b8e9b 100644
--- a/lib/libthr/thread/thr_umtx.h
+++ b/lib/libthr/thread/thr_umtx.h
@@ -36,25 +36,19 @@
 
 typedef long umtx_t;
 
-int __thr_umutex_lock(struct umutex *mtx, uint32_t id) __hidden;
-int __thr_umutex_timedlock(struct umutex *mtx, uint32_t id,
+int __thr_umutex_lock(struct umutex *mtx) __hidden;
+int __thr_umutex_timedlock(struct umutex *mtx,
 	const struct timespec *timeout) __hidden;
-int __thr_umutex_unlock(struct umutex *mtx, uint32_t id) __hidden;
-int __thr_umutex_kern_trylock(struct umutex *mtx) __hidden;
+int __thr_umutex_unlock(struct umutex *mtx) __hidden;
+int __thr_umutex_trylock(struct umutex *mtx) __hidden;
 int __thr_umutex_set_ceiling(struct umutex *mtx, uint32_t ceiling,
 	uint32_t *oldceiling) __hidden;
 
+void _thr_umutex_init(struct umutex *mtx) __hidden;
 int _thr_umtx_wait(volatile umtx_t *mtx, umtx_t exp,
 	const struct timespec *timeout) __hidden;
 int _thr_umtx_wake(volatile umtx_t *mtx, int count) __hidden;
 
-static inline void
-_thr_umutex_init(struct umutex *mtx)
-{
-    struct umutex tmp = DEFAULT_UMUTEX;
-    *mtx = tmp;
-}
-
 static inline int
 _thr_umutex_trylock(struct umutex *mtx, uint32_t id)
 {
@@ -62,7 +56,7 @@ _thr_umutex_trylock(struct umutex *mtx, uint32_t id)
 	return (0);
     if ((mtx->m_flags & UMUTEX_PRIO_PROTECT) == 0)
     	return (EBUSY);
-    return (__thr_umutex_kern_trylock(mtx));
+    return (__thr_umutex_trylock(mtx));
 }
 
 static inline int
@@ -70,7 +64,7 @@ _thr_umutex_lock(struct umutex *mtx, uint32_t id)
 {
     if (atomic_cmpset_acq_32(&mtx->m_owner, UMUTEX_UNOWNED, id))
 	return (0);
-    return (__thr_umutex_lock(mtx, id));
+    return (__thr_umutex_lock(mtx));
 }
 
 static inline int
@@ -79,7 +73,7 @@ _thr_umutex_timedlock(struct umutex *mtx, uint32_t id,
 {
     if (atomic_cmpset_acq_32(&mtx->m_owner, UMUTEX_UNOWNED, id))
 	return (0);
-    return (__thr_umutex_timedlock(mtx, id, timeout));
+    return (__thr_umutex_timedlock(mtx, timeout));
 }
 
 static inline int
@@ -87,7 +81,7 @@ _thr_umutex_unlock(struct umutex *mtx, uint32_t id)
 {
     if (atomic_cmpset_rel_32(&mtx->m_owner, id, UMUTEX_UNOWNED))
 	return (0);
-    return (__thr_umutex_unlock(mtx, id));
+    return (__thr_umutex_unlock(mtx));
 }
 
 #endif