staging/android: rename sync_fence to sync_file

sync_file has a more close meaning to what a sync_fence really, a struct
that represent a file that can be used by userspace to get information on
a fence, or wait for it to be signaled.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/android/sync.h

@@ -25,7 +25,7 @@
 
 struct sync_timeline;
 struct sync_pt;
-struct sync_fence;
+struct sync_file;
 
 /**
  * struct sync_timeline_ops - sync object implementation ops
@@ -108,36 +108,36 @@ static inline struct sync_timeline *sync_pt_parent(struct sync_pt *pt)
 			    child_list_lock);
 }
 
-struct sync_fence_cb {
+struct sync_file_cb {
 	struct fence_cb cb;
 	struct fence *sync_pt;
-	struct sync_fence *fence;
+	struct sync_file *sync_file;
 };
 
 /**
- * struct sync_fence - sync fence
+ * struct sync_file - sync file to export to the userspace
  * @file:		file representing this fence
  * @kref:		reference count on fence.
- * @name:		name of sync_fence.  Useful for debugging
- * @sync_fence_list:	membership in global fence list
+ * @name:		name of sync_file.  Useful for debugging
+ * @sync_file_list:	membership in global file list
  * @num_fences		number of sync_pts in the fence
  * @wq:			wait queue for fence signaling
  * @status:		0: signaled, >0:active, <0: error
  * @cbs:		sync_pts callback information
  */
-struct sync_fence {
+struct sync_file {
 	struct file		*file;
 	struct kref		kref;
 	char			name[32];
 #ifdef CONFIG_DEBUG_FS
-	struct list_head	sync_fence_list;
+	struct list_head	sync_file_list;
 #endif
 	int num_fences;
 
 	wait_queue_head_t	wq;
 	atomic_t		status;
 
-	struct sync_fence_cb	cbs[];
+	struct sync_file_cb	cbs[];
 };
 
 /*
@@ -199,95 +199,95 @@ struct sync_pt *sync_pt_create(struct sync_timeline *parent, int size);
 void sync_pt_free(struct sync_pt *pt);
 
 /**
- * sync_fence_create() - creates a sync fence
- * @name:	name of fence to create
- * @pt:		sync_pt to add to the fence
+ * sync_file_create() - creates a sync file
+ * @name:	name of file to create
+ * @pt:		sync_pt to add to the file
  *
- * Creates a fence containg @pt.  Once this is called, the fence takes
+ * Creates a sync_file containg @pt. Once this is called, the sync_file takes
  * ownership of @pt.
  */
-struct sync_fence *sync_fence_create(const char *name, struct sync_pt *pt);
+struct sync_file *sync_file_create(const char *name, struct sync_pt *pt);
 
 /**
- * sync_fence_create_dma() - creates a sync fence from dma-fence
- * @name:	name of fence to create
- * @pt:	dma-fence to add to the fence
+ * sync_file_create_dma() - creates a sync file from dma-fence
+ * @name:	name of file to create
+ * @pt:	dma-fence to add to the file
  *
- * Creates a fence containg @pt.  Once this is called, the fence takes
+ * Creates a sync_file containg @pt.  Once this is called, the fence takes
  * ownership of @pt.
  */
-struct sync_fence *sync_fence_create_dma(const char *name, struct fence *pt);
+struct sync_file *sync_file_create_dma(const char *name, struct fence *pt);
 
 /*
- * API for sync_fence consumers
+ * API for sync_file consumers
  */
 
 /**
- * sync_fence_merge() - merge two fences
+ * sync_file_merge() - merge two sync_files
  * @name:	name of new fence
- * @a:		fence a
- * @b:		fence b
+ * @a:		sync_file a
+ * @b:		sync_file b
  *
- * Creates a new fence which contains copies of all the sync_pts in both
- * @a and @b.  @a and @b remain valid, independent fences. Returns the
- * new merged fence or NULL in case of error.
+ * Creates a new sync_file which contains copies of all the sync_pts in both
+ * @a and @b.  @a and @b remain valid, independent sync_file. Returns the
+ * new merged sync_file or NULL in case of error.
  */
-struct sync_fence *sync_fence_merge(const char *name,
-				    struct sync_fence *a, struct sync_fence *b);
+struct sync_file *sync_file_merge(const char *name,
+				    struct sync_file *a, struct sync_file *b);
 
 /**
- * sync_fence_fdget() - get a fence from an fd
+ * sync_file_fdget() - get a sync_file from an fd
  * @fd:		fd referencing a fence
  *
- * Ensures @fd references a valid fence, increments the refcount of the backing
- * file, and returns the fence. Returns the fence or NULL in case of error.
+ * Ensures @fd references a valid sync_file, increments the refcount of the
+ * backing file. Returns the sync_file or NULL in case of error.
  */
-struct sync_fence *sync_fence_fdget(int fd);
+struct sync_file *sync_file_fdget(int fd);
 
 /**
- * sync_fence_put() - puts a reference of a sync fence
- * @fence:	fence to put
+ * sync_file_put() - puts a reference of a sync_file
+ * @sync_file:	sync_file to put
  *
- * Puts a reference on @fence.  If this is the last reference, the fence and
- * all it's sync_pts will be freed
+ * Puts a reference on @sync_fence.  If this is the last reference, the
+ * sync_fil and all it's sync_pts will be freed
  */
-void sync_fence_put(struct sync_fence *fence);
+void sync_file_put(struct sync_file *sync_file);
 
 /**
- * sync_fence_install() - installs a fence into a file descriptor
- * @fence:	fence to install
+ * sync_file_install() - installs a sync_file into a file descriptor
+ * @sync_file:	sync_file to install
  * @fd:		file descriptor in which to install the fence
  *
- * Installs @fence into @fd.  @fd's should be acquired through
+ * Installs @sync_file into @fd.  @fd's should be acquired through
  * get_unused_fd_flags(O_CLOEXEC).
  */
-void sync_fence_install(struct sync_fence *fence, int fd);
+void sync_file_install(struct sync_file *sync_file, int fd);
 
 /**
- * sync_fence_wait() - wait on fence
- * @fence:	fence to wait on
+ * sync_file_wait() - wait on sync file
+ * @sync_file:	file to wait on
  * @tiemout:	timeout in ms
  *
- * Wait for @fence to be signaled or have an error.  Waits indefinitely
+ * Wait for @sync_file to be signaled or have an error. Waits indefinitely
  * if @timeout < 0.
  *
  * Returns 0 if fence signaled, > 0 if it is still active and <0 on error
  */
-int sync_fence_wait(struct sync_fence *fence, long timeout);
+int sync_file_wait(struct sync_file *sync_file, long timeout);
 
 #ifdef CONFIG_DEBUG_FS
 
 void sync_timeline_debug_add(struct sync_timeline *obj);
 void sync_timeline_debug_remove(struct sync_timeline *obj);
-void sync_fence_debug_add(struct sync_fence *fence);
-void sync_fence_debug_remove(struct sync_fence *fence);
+void sync_file_debug_add(struct sync_file *fence);
+void sync_file_debug_remove(struct sync_file *fence);
 void sync_dump(void);
 
 #else
 # define sync_timeline_debug_add(obj)
 # define sync_timeline_debug_remove(obj)
-# define sync_fence_debug_add(fence)
-# define sync_fence_debug_remove(fence)
+# define sync_file_debug_add(fence)
+# define sync_file_debug_remove(fence)
 # define sync_dump()
 #endif
 

drivers/staging/android/sync_debug.c

@@ -35,8 +35,8 @@ static struct dentry *dbgfs;
 
 static LIST_HEAD(sync_timeline_list_head);
 static DEFINE_SPINLOCK(sync_timeline_list_lock);
-static LIST_HEAD(sync_fence_list_head);
-static DEFINE_SPINLOCK(sync_fence_list_lock);
+static LIST_HEAD(sync_file_list_head);
+static DEFINE_SPINLOCK(sync_file_list_lock);
 
 void sync_timeline_debug_add(struct sync_timeline *obj)
 {
@@ -56,22 +56,22 @@ void sync_timeline_debug_remove(struct sync_timeline *obj)
 	spin_unlock_irqrestore(&sync_timeline_list_lock, flags);
 }
 
-void sync_fence_debug_add(struct sync_fence *fence)
+void sync_file_debug_add(struct sync_file *sync_file)
 {
 	unsigned long flags;
 
-	spin_lock_irqsave(&sync_fence_list_lock, flags);
-	list_add_tail(&fence->sync_fence_list, &sync_fence_list_head);
-	spin_unlock_irqrestore(&sync_fence_list_lock, flags);
+	spin_lock_irqsave(&sync_file_list_lock, flags);
+	list_add_tail(&sync_file->sync_file_list, &sync_file_list_head);
+	spin_unlock_irqrestore(&sync_file_list_lock, flags);
 }
 
-void sync_fence_debug_remove(struct sync_fence *fence)
+void sync_file_debug_remove(struct sync_file *sync_file)
 {
 	unsigned long flags;
 
-	spin_lock_irqsave(&sync_fence_list_lock, flags);
-	list_del(&fence->sync_fence_list);
-	spin_unlock_irqrestore(&sync_fence_list_lock, flags);
+	spin_lock_irqsave(&sync_file_list_lock, flags);
+	list_del(&sync_file->sync_file_list);
+	spin_unlock_irqrestore(&sync_file_list_lock, flags);
 }
 
 static const char *sync_status_str(int status)
@@ -152,17 +152,18 @@ static void sync_print_obj(struct seq_file *s, struct sync_timeline *obj)
 	spin_unlock_irqrestore(&obj->child_list_lock, flags);
 }
 
-static void sync_print_fence(struct seq_file *s, struct sync_fence *fence)
-{
+static void sync_print_sync_file(struct seq_file *s,
+				  struct sync_file *sync_file)
+ {
 	int i;
 
-	seq_printf(s, "[%p] %s: %s\n", fence, fence->name,
-		   sync_status_str(atomic_read(&fence->status)));
-
-	for (i = 0; i < fence->num_fences; ++i)
-		sync_print_pt(s, fence->cbs[i].sync_pt, true);
-}
+	seq_printf(s, "[%p] %s: %s\n", sync_file, sync_file->name,
+		   sync_status_str(atomic_read(&sync_file->status)));
 
+	for (i = 0; i < sync_file->num_fences; ++i)
+		sync_print_pt(s, sync_file->cbs[i].sync_pt, true);
+ }
+ 
 static int sync_debugfs_show(struct seq_file *s, void *unused)
 {
 	unsigned long flags;
@@ -183,15 +184,15 @@ static int sync_debugfs_show(struct seq_file *s, void *unused)
 
 	seq_puts(s, "fences:\n--------------\n");
 
-	spin_lock_irqsave(&sync_fence_list_lock, flags);
-	list_for_each(pos, &sync_fence_list_head) {
-		struct sync_fence *fence =
-			container_of(pos, struct sync_fence, sync_fence_list);
+	spin_lock_irqsave(&sync_file_list_lock, flags);
+	list_for_each(pos, &sync_file_list_head) {
+		struct sync_file *sync_file =
+			container_of(pos, struct sync_file, sync_file_list);
 
-		sync_print_fence(s, fence);
+		sync_print_sync_file(s, sync_file);
 		seq_puts(s, "\n");
 	}
-	spin_unlock_irqrestore(&sync_fence_list_lock, flags);
+	spin_unlock_irqrestore(&sync_file_list_lock, flags);
 	return 0;
 }
 
@@ -244,7 +245,7 @@ static long sw_sync_ioctl_create_fence(struct sw_sync_timeline *obj,
 	int fd = get_unused_fd_flags(O_CLOEXEC);
 	int err;
 	struct sync_pt *pt;
-	struct sync_fence *fence;
+	struct sync_file *sync_file;
 	struct sw_sync_create_fence_data data;
 
 	if (fd < 0)
@@ -262,8 +263,8 @@ static long sw_sync_ioctl_create_fence(struct sw_sync_timeline *obj,
 	}
 
 	data.name[sizeof(data.name) - 1] = '\0';
-	fence = sync_fence_create(data.name, pt);
-	if (!fence) {
+	sync_file = sync_file_create(data.name, pt);
+	if (!sync_file) {
 		sync_pt_free(pt);
 		err = -ENOMEM;
 		goto err;
@@ -271,12 +272,12 @@ static long sw_sync_ioctl_create_fence(struct sw_sync_timeline *obj,
 
 	data.fence = fd;
 	if (copy_to_user((void __user *)arg, &data, sizeof(data))) {
-		sync_fence_put(fence);
+		sync_file_put(sync_file);
 		err = -EFAULT;
 		goto err;
 	}
 
-	sync_fence_install(fence, fd);
+	sync_file_install(sync_file, fd);
 
 	return 0;
 

drivers/staging/android/trace/sync.h

@@ -33,19 +33,19 @@ TRACE_EVENT(sync_timeline,
 );
 
 TRACE_EVENT(sync_wait,
-	TP_PROTO(struct sync_fence *fence, int begin),
+	TP_PROTO(struct sync_file *sync_file, int begin),
 
-	TP_ARGS(fence, begin),
+	TP_ARGS(sync_file, begin),
 
 	TP_STRUCT__entry(
-			__string(name, fence->name)
+			__string(name, sync_file->name)
 			__field(s32, status)
 			__field(u32, begin)
 	),
 
 	TP_fast_assign(
-			__assign_str(name, fence->name);
-			__entry->status = atomic_read(&fence->status);
+			__assign_str(name, sync_file->name);
+			__entry->status = atomic_read(&sync_file->status);
 			__entry->begin = begin;
 	),
 

drivers/staging/android/uapi/sync.h

@@ -46,15 +46,15 @@ struct sync_pt_info {
 };
 
 /**
- * struct sync_fence_info_data - data returned from fence info ioctl
+ * struct sync_file_info_data - data returned from fence info ioctl
  * @len:	ioctl caller writes the size of the buffer its passing in.
- *		ioctl returns length of sync_fence_data returned to userspace
- *		including pt_info.
+ *		ioctl returns length of sync_file_info_data returned to
+ *		userspace including pt_info.
  * @name:	name of fence
  * @status:	status of fence. 1: signaled 0:active <0:error
  * @pt_info:	a sync_pt_info struct for every sync_pt in the fence
  */
-struct sync_fence_info_data {
+struct sync_file_info_data {
 	__u32	len;
 	char	name[32];
 	__s32	status;
@@ -83,15 +83,15 @@ struct sync_fence_info_data {
 /**
  * DOC: SYNC_IOC_FENCE_INFO - get detailed information on a fence
  *
- * Takes a struct sync_fence_info_data with extra space allocated for pt_info.
+ * Takes a struct sync_file_info_data with extra space allocated for pt_info.
  * Caller should write the size of the buffer into len.  On return, len is
- * updated to reflect the total size of the sync_fence_info_data including
+ * updated to reflect the total size of the sync_file_info_data including
  * pt_info.
  *
  * pt_info is a buffer containing sync_pt_infos for every sync_pt in the fence.
  * To iterate over the sync_pt_infos, use the sync_pt_info.len field.
  */
 #define SYNC_IOC_FENCE_INFO	_IOWR(SYNC_IOC_MAGIC, 2,\
-	struct sync_fence_info_data)
+	struct sync_file_info_data)
 
 #endif /* _UAPI_LINUX_SYNC_H */