linux-imx

/*

 * Sync File validation framework and debug information

 *

 * Copyright (C) 2012 Google, Inc.

 *

 * This software is licensed under the terms of the GNU General Public

 * License version 2, as published by the Free Software Foundation, and

 * may be copied, distributed, and modified under those terms.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 */

​

#include <linux/debugfs.h>

#include "sync_debug.h"

​

static struct dentry *dbgfs;

​

static LIST_HEAD(sync_timeline_list_head);

static DEFINE_SPINLOCK(sync_timeline_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)

{

    unsigned long flags;

​

    spin_lock_irqsave(&sync_timeline_list_lock, flags);

    list_add_tail(&obj->sync_timeline_list, &sync_timeline_list_head);

    spin_unlock_irqrestore(&sync_timeline_list_lock, flags);

}

​

void sync_timeline_debug_remove(struct sync_timeline *obj)

{

    unsigned long flags;

​

    spin_lock_irqsave(&sync_timeline_list_lock, flags);

    list_del(&obj->sync_timeline_list);

    spin_unlock_irqrestore(&sync_timeline_list_lock, flags);

}

​

void sync_file_debug_add(struct sync_file *sync_file)

{

    unsigned long 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_file_debug_remove(struct sync_file *sync_file)

{

    unsigned long 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)