Tomko <[EMAIL PROTECTED]> wrote: > Inside the system call , the kernel often copy the data by calling > copy_from_user() rather than just using strcpy(), is it because the > memory mapping in kenel space is different from user space?
No, it is because this function checks whether the access to the user space address is OK. There are situations when it can also sleep (page not present). -- Catalin - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
