| #include <linux/debugfs.h> |
| static struct dentry *ras_debugfs_dir; |
| static atomic_t trace_count = ATOMIC_INIT(0); |
| int ras_userspace_consumers(void) |
| return atomic_read(&trace_count); |
| EXPORT_SYMBOL_GPL(ras_userspace_consumers); |
| static int trace_show(struct seq_file *m, void *v) |
| return atomic_read(&trace_count); |
| static int trace_open(struct inode *inode, struct file *file) |
| atomic_inc(&trace_count); |
| return single_open(file, trace_show, NULL); |
| static int trace_release(struct inode *inode, struct file *file) |
| atomic_dec(&trace_count); |
| return single_release(inode, file); |
| static const struct file_operations trace_fops = { |
| .release = trace_release, |
| int __init ras_add_daemon_trace(void) |
| fentry = debugfs_create_file("daemon_active", S_IRUSR, ras_debugfs_dir, |
| void __init ras_debugfs_init(void) |
| ras_debugfs_dir = debugfs_create_dir("ras", NULL); |