Hi! Just a short question: What is the correct method of copying large areas of memory from userspace into userspace when running in kernel-mode?
According to just about any type of documentation out there something like unsigned long *from = 0x08000000; unsigned long *to = 0x09000000; memcpy(to, from, 0x1000); should be avoided as copy_from_user, put_user, etc. should be used instead... Is there a third set of functions for direct from-userspace-to-userspace copying or is it legitimate to assure that the first bytes in the from & to memory areas are available and then just do the plain memcpy? Maybe there is a simple "just use the xxx function-set" answer to that, that i just have not ran into yet :-) Thanks! - 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/
