#define wait_queue_entry_t wait_queue_t
#endif
-int cfs_kernel_write(struct file *filp, char *buf, size_t count, loff_t *pos);
+int cfs_kernel_write(struct file *filp, const void *buf, size_t count,
+ loff_t *pos);
/*
* For RHEL6 struct kernel_parm_ops doesn't exist. Also