On Wed, 6 Jun 2007, Alan Cox wrote: > > The sys_accept() system call has been modified to return a file > > descriptor inside the non-sequential area, if the listening fd is. > > The sys_socketcall() system call has been also changed to support > > a new SYS_SOCKET2 indentifier. > > This still all seems really really ugly. Is there anything wrong with > throwing all these extra cases out and replacing the entire lot with > > prctl(PR_SPARSEFD, 1); > > to turn on sparse fd allocation for a process ?
There was a little discussion where I tried to whisper something similar, but Linus and Uli shot me :) - with good reasons IMO. You may link to runtimes that are not non-sequentialfd aware, and will break them. > Anyone needing to deal with certain special fds will use dup2() anyway so > a task global switch seems to be cleaner and make the behaviour simply to > flip on, with no extra calls (and you need to submit man pages for them > all too), and also more importantly no new glibc stuff should be needed, > and a process can try to set sparsefd, fail and carry on so its more > portable and back portable. Man pages! Damn, I forgot Michael Kerrisk is already waiting for the other stuff :( - 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/
