a fairly basic question, but i just want to be clear on terminology. in robert love's book "linux kernel development" 2ed. (henceforth just LKD2), love is discussing the available file operations in ch 12, pp. 228-9. he describes what are pretty clearly userspace calls such as llseek(), read(), aio_read() and so on as "system calls". that's not what i understand by the phrase "system calls." i've always used that description to refer to what love talks about in ch 5, "system calls." from my perspective, an actual system call from userspace would look like what love has on p. 73: #define __NR_foo 283 __syscall0(long, foo) ... and so on; that is, it *explicitly* uses the _syscalln() macros. IMHO, a simple call to something like read() and write() is simply a userspace call which *eventually* invokes the corresponding system call. can someone clarify this, as i *really* hate to use sloppy or inaccurate terminology. rday -- ======================================================================== Robert P. J. Day Linux Consulting, Training and Annoying Kernel Pedantry Waterloo, Ontario, CANADA http://fsdev.net/wiki/index.php?title=Main_Page ======================================================================== -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
