unsigned long fs_cpu_buffer_size = 8192;
unsigned long fs_buffer_watershed = 32768; /* FIXME: tune */
+static ssize_t depth_read(struct file * file, char __user * buf, size_t count, loff_t * offset)
+{
+ return oprofilefs_ulong_to_user(backtrace_depth, buf, count, offset);
+}
+
+
+static ssize_t depth_write(struct file * file, char const __user * buf, size_t count, loff_t * offset)
+{
+ unsigned long val;
+ int retval;
+
+ if (*offset)
+ return -EINVAL;
+
+ retval = oprofilefs_ulong_from_user(&val, buf, count);
+ if (retval)
+ return retval;
+
+ retval = oprofile_set_backtrace(val);
+
+ if (retval)
+ return retval;
+ return count;
+}
+
+
+static struct file_operations depth_fops = {
+ .read = depth_read,
+ .write = depth_write
+};
+
-static ssize_t pointer_size_read(struct file * file, char * buf, size_t count, loff_t * offset)
+static ssize_t pointer_size_read(struct file * file, char __user * buf, size_t count, loff_t * offset)
{
- return oprofilefs_ulong_to_user((unsigned long)sizeof(void *), buf, count, offset);
+ return oprofilefs_ulong_to_user(sizeof(void *), buf, count, offset);
}
};
-static ssize_t cpu_type_read(struct file * file, char * buf, size_t count, loff_t * offset)
+static ssize_t cpu_type_read(struct file * file, char __user * buf, size_t count, loff_t * offset)
{
- return oprofilefs_str_to_user(oprofile_ops->cpu_type, buf, count, offset);
+ return oprofilefs_str_to_user(oprofile_ops.cpu_type, buf, count, offset);
}
};
-static ssize_t enable_read(struct file * file, char * buf, size_t count, loff_t * offset)
+static ssize_t enable_read(struct file * file, char __user * buf, size_t count, loff_t * offset)
{
return oprofilefs_ulong_to_user(oprofile_started, buf, count, offset);
}
-static ssize_t enable_write(struct file *file, char const * buf, size_t count, loff_t * offset)
+static ssize_t enable_write(struct file * file, char const __user * buf, size_t count, loff_t * offset)
{
unsigned long val;
int retval;
};
-static ssize_t dump_write(struct file *file, char const * buf, size_t count, loff_t * offset)
+static ssize_t dump_write(struct file * file, char const __user * buf, size_t count, loff_t * offset)
{
wake_up_buffer_waiter();
return count;
void oprofile_create_files(struct super_block * sb, struct dentry * root)
{
oprofilefs_create_file(sb, root, "enable", &enable_fops);
- oprofilefs_create_file(sb, root, "dump", &dump_fops);
+ oprofilefs_create_file_perm(sb, root, "dump", &dump_fops, 0666);
oprofilefs_create_file(sb, root, "buffer", &event_buffer_fops);
oprofilefs_create_ulong(sb, root, "buffer_size", &fs_buffer_size);
oprofilefs_create_ulong(sb, root, "buffer_watershed", &fs_buffer_watershed);
oprofilefs_create_ulong(sb, root, "cpu_buffer_size", &fs_cpu_buffer_size);
oprofilefs_create_file(sb, root, "cpu_type", &cpu_type_fops);
+ oprofilefs_create_file(sb, root, "backtrace_depth", &depth_fops);
oprofilefs_create_file(sb, root, "pointer_size", &pointer_size_fops);
oprofile_create_stats_files(sb, root);
- if (oprofile_ops->create_files)
- oprofile_ops->create_files(sb, root);
+ if (oprofile_ops.create_files)
+ oprofile_ops.create_files(sb, root);
}