On Tue, 26 Feb 2008, Michael Kerrisk wrote: > Okay -- I'll look at it some more. I am however loathe to drop the > term open file description, because POSIX uses, as well as a number of > other Linux man pages by now.
Heh, POSIX. Now doesn't take a genius to see that "file description" and "file descriptor" looks amazingly similar, does it? :) > > That'd mean placing an eventpoll custom hook into sys_close(). Looks > > very bad to me, and probably will look even worse to other kernel > > folks. Is not much a performance issue (a check to see if a file* is > > an eventpoll file is as easy as comparing the f_op pointer), but a > > design/style issue. > > Oh -- I wasn't suggesting we could make the change now -- it would > break the ABI and all that. I was just wondering why the decision > wasn't made to do it the other way to begin with. The existing > semantics are somewhat couterintuitive, and potentially interact > libraries that do private manipulations with file descriptors. For the same reason that a custom hook in sys_close wouldn't have passed the radar ;) As far as problems with libraries doing tricks with fds, that's an issue that goes beyond epoll. - Davide -- 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/
