[PATCH] sem2mutex: kernel/

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

5 files changed, 30 insertions, 25 deletions

diff --git a/kernel/kthread.c b/kernel/kthread.c
index e75950a1092c..6a5373868a98 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -12,6 +12,7 @@
 #include <linux/unistd.h>
 #include <linux/file.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
 #include <asm/semaphore.h>
 
 /*
@@ -41,7 +42,7 @@ struct kthread_stop_info
 
 /* Thread stopping is done by setthing this var: lock serializes
  * multiple kthread_stop calls. */
-static DECLARE_MUTEX(kthread_stop_lock);
+static DEFINE_MUTEX(kthread_stop_lock);
 static struct kthread_stop_info kthread_stop_info;
 
 int kthread_should_stop(void)
@@ -173,7 +174,7 @@ int kthread_stop_sem(struct task_struct *k, struct semaphore *s)
 {
         int ret;
 
-        down(&kthread_stop_lock);
+        mutex_lock(&kthread_stop_lock);
 
         /* It could exit after stop_info.k set, but before wake_up_process. */
         get_task_struct(k);
@@ -194,7 +195,7 @@ int kthread_stop_sem(struct task_struct *k, struct semaphore *s)
         wait_for_completion(&kthread_stop_info.done);
         kthread_stop_info.k = NULL;
         ret = kthread_stop_info.err;
-        up(&kthread_stop_lock);
+        mutex_unlock(&kthread_stop_lock);
 
         return ret;
 }
diff --git a/kernel/module.c b/kernel/module.c
index 77764f22f021..de6312da6bb5 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -39,6 +39,7 @@
 #include <linux/device.h>
 #include <linux/string.h>
 #include <linux/sched.h>
+#include <linux/mutex.h>
 #include <asm/uaccess.h>
 #include <asm/semaphore.h>
 #include <asm/cacheflush.h>
@@ -63,15 +64,15 @@ static DEFINE_SPINLOCK(modlist_lock);
 static DECLARE_MUTEX(module_mutex);
 static LIST_HEAD(modules);
 
-static DECLARE_MUTEX(notify_mutex);
+static DEFINE_MUTEX(notify_mutex);
 static struct notifier_block * module_notify_list;
 
 int register_module_notifier(struct notifier_block * nb)
 {
         int err;
-        down(&notify_mutex);
+        mutex_lock(&notify_mutex);
         err = notifier_chain_register(&module_notify_list, nb);
-        up(&notify_mutex);
+        mutex_unlock(&notify_mutex);
         return err;
 }
 EXPORT_SYMBOL(register_module_notifier);
@@ -79,9 +80,9 @@ EXPORT_SYMBOL(register_module_notifier);
 int unregister_module_notifier(struct notifier_block * nb)
 {
         int err;
-        down(&notify_mutex);
+        mutex_lock(&notify_mutex);
         err = notifier_chain_unregister(&module_notify_list, nb);
-        up(&notify_mutex);
+        mutex_unlock(&notify_mutex);
         return err;
 }
 EXPORT_SYMBOL(unregister_module_notifier);
@@ -1989,9 +1990,9 @@ sys_init_module(void __user *umod,
         /* Drop lock so they can recurse */
         up(&module_mutex);
 
-        down(&notify_mutex);
+        mutex_lock(&notify_mutex);
         notifier_call_chain(&module_notify_list, MODULE_STATE_COMING, mod);
-        up(&notify_mutex);
+        mutex_unlock(&notify_mutex);
 
         /* Start the module */
         if (mod->init != NULL)
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index fa895fc2ecf5..9944379360b5 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -35,6 +35,7 @@
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/time.h>
+#include <linux/mutex.h>
 
 #include <asm/uaccess.h>
 #include <asm/semaphore.h>
diff --git a/kernel/power/pm.c b/kernel/power/pm.c
index 33c508e857dd..0f6908cce1dd 100644
--- a/kernel/power/pm.c
+++ b/kernel/power/pm.c
@@ -25,6 +25,7 @@
 #include <linux/pm.h>
 #include <linux/pm_legacy.h>
 #include <linux/interrupt.h>
+#include <linux/mutex.h>
 
 int pm_active;
 
@@ -40,7 +41,7 @@ int pm_active;
  *      until a resume but that will be fine.
  */
  
-static DECLARE_MUTEX(pm_devs_lock);
+static DEFINE_MUTEX(pm_devs_lock);
 static LIST_HEAD(pm_devs);
 
 /**
@@ -67,9 +68,9 @@ struct pm_dev *pm_register(pm_dev_t type,
                 dev->id = id;
                 dev->callback = callback;
 
-                down(&pm_devs_lock);
+                mutex_lock(&pm_devs_lock);
                 list_add(&dev->entry, &pm_devs);
-                up(&pm_devs_lock);
+                mutex_unlock(&pm_devs_lock);
         }
         return dev;
 }
@@ -85,9 +86,9 @@ struct pm_dev *pm_register(pm_dev_t type,
 void pm_unregister(struct pm_dev *dev)
 {
         if (dev) {
-                down(&pm_devs_lock);
+                mutex_lock(&pm_devs_lock);
                 list_del(&dev->entry);
-                up(&pm_devs_lock);
+                mutex_unlock(&pm_devs_lock);
 
                 kfree(dev);
         }
@@ -118,7 +119,7 @@ void pm_unregister_all(pm_callback callback)
         if (!callback)
                 return;
 
-        down(&pm_devs_lock);
+        mutex_lock(&pm_devs_lock);
         entry = pm_devs.next;
         while (entry != &pm_devs) {
                 struct pm_dev *dev = list_entry(entry, struct pm_dev, entry);
@@ -126,7 +127,7 @@ void pm_unregister_all(pm_callback callback)
                 if (dev->callback == callback)
                         __pm_unregister(dev);
         }
-        up(&pm_devs_lock);
+        mutex_unlock(&pm_devs_lock);
 }
 
 /**
@@ -234,7 +235,7 @@ int pm_send_all(pm_request_t rqst, void *data)
 {
         struct list_head *entry;
         
-        down(&pm_devs_lock);
+        mutex_lock(&pm_devs_lock);
         entry = pm_devs.next;
         while (entry != &pm_devs) {
                 struct pm_dev *dev = list_entry(entry, struct pm_dev, entry);
@@ -246,13 +247,13 @@ int pm_send_all(pm_request_t rqst, void *data)
                                  */
                                 if (rqst == PM_SUSPEND)
                                         pm_undo_all(dev);
-                                up(&pm_devs_lock);
+                                mutex_unlock(&pm_devs_lock);
                                 return status;
                         }
                 }
                 entry = entry->next;
         }
-        up(&pm_devs_lock);
+        mutex_unlock(&pm_devs_lock);
         return 0;
 }
 
diff --git a/kernel/profile.c b/kernel/profile.c
index f89248e6d704..ad81f799a9b4 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -23,6 +23,7 @@
 #include <linux/cpu.h>
 #include <linux/profile.h>
 #include <linux/highmem.h>
+#include <linux/mutex.h>
 #include <asm/sections.h>
 #include <asm/semaphore.h>
 
@@ -44,7 +45,7 @@ static cpumask_t prof_cpu_mask = CPU_MASK_ALL;
 #ifdef CONFIG_SMP
 static DEFINE_PER_CPU(struct profile_hit *[2], cpu_profile_hits);
 static DEFINE_PER_CPU(int, cpu_profile_flip);
-static DECLARE_MUTEX(profile_flip_mutex);
+static DEFINE_MUTEX(profile_flip_mutex);
 #endif /* CONFIG_SMP */
 
 static int __init profile_setup(char * str)
@@ -243,7 +244,7 @@ static void profile_flip_buffers(void)
 {
         int i, j, cpu;
 
-        down(&profile_flip_mutex);
+        mutex_lock(&profile_flip_mutex);
         j = per_cpu(cpu_profile_flip, get_cpu());
         put_cpu();
         on_each_cpu(__profile_flip_buffers, NULL, 0, 1);
@@ -259,14 +260,14 @@ static void profile_flip_buffers(void)
                         hits[i].hits = hits[i].pc = 0;
                 }
         }
-        up(&profile_flip_mutex);
+        mutex_unlock(&profile_flip_mutex);
 }
 
 static void profile_discard_flip_buffers(void)
 {
         int i, cpu;
 
-        down(&profile_flip_mutex);
+        mutex_lock(&profile_flip_mutex);
         i = per_cpu(cpu_profile_flip, get_cpu());
         put_cpu();
         on_each_cpu(__profile_flip_buffers, NULL, 0, 1);
@@ -274,7 +275,7 @@ static void profile_discard_flip_buffers(void)
                 struct profile_hit *hits = per_cpu(cpu_profile_hits, cpu)[i];
                 memset(hits, 0, NR_PROFILE_HIT*sizeof(struct profile_hit));
         }
-        up(&profile_flip_mutex);
+        mutex_unlock(&profile_flip_mutex);
 }
 
 void profile_hit(int type, void *__pc)