Date: Fri, 02 Feb 2001 11:59:52 -0800 (PST) From: John Baldwin <jhb@FreeBSD.org> To: Peter Pentchev <roam@orbitel.bg> Cc: freebsd-hackers@FreeBSD.org Subject: Re: Suboptimal mmap of devices on i86 Message-ID: <XFMail.010202115952.jhb@FreeBSD.org> In-Reply-To: <20010202214255.A396@ringworld.oblivion.bg>
next in thread | previous in thread | raw e-mail | index | archive | help
On 02-Feb-01 Peter Pentchev wrote: > On Fri, Feb 02, 2001 at 11:16:15AM -0800, John Baldwin wrote: >> >> On 02-Feb-01 Peter Pentchev wrote: >> > On Thu, Feb 01, 2001 at 01:19:24PM -0800, John Baldwin wrote: >> >> >> >> On 01-Feb-01 Doug White wrote: >> >> > On Mon, 29 Jan 2001, John Baldwin wrote: >> >> > >> >> >> Then only rename it in 4.x We can do an API change for 5.0. We'll be >> >> >> renaming syscall2() back to syscall() in 5.0 for example. We don't >> >> >> want to end up with syscall47() someday in FreeBSD 67.2. :-P >> >> > >> >> > And what happens to apps using the previous syscall(2) interface? They >> >> > die horribly? That's not acceptable. >> >> >> >> Huh? syscall2() is an internal kernel function. The only thing that >> >> might > [snip] >> > >> > NAME >> > syscall, __syscall - indirect system call >> > >> > ..as used in src/lib/libc/sys/*.c. >> >> I'm not renaming that function. I'm renaming syscall2() in >> sys/i386/i386/trap.c, which is an internal function only used >> by the kernel for the kernel side of syscall entry. > > *Oof*. Yeah, that's a heavy cluebat, but I did deserve the smack. Not necessarily. Heavy cluebats are not always conducive to encouraging new developers. :-/ But that wasn't _that_ heavy of a cluebat. :) FWIW, on the alpha and ia64, we still use just syscall() as the name of the function in the kernel (of course, they don't support MP safe syscalls yet.) Why a) we worried about an API change in -current and b) only did this for one architecture in light of the fact that all archs will have MP safe syscalls RSN is beyond me... -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?XFMail.010202115952.jhb>