October 30, 2002

Many new big items merged in the last few days:
IPsec, CryptoAPI, LVM2 (device-mapper), Digital Video Broadcasting layer, etc. And still a long list of pending items marked as "Ready".
Oh, and Halloween is tomorrow.... :-)

http://www.kernelnewbies.org/status/ for all the details. Enjoy!

-- Guillaume

-------------------------------------------------------
Linux Kernel 2.5 Status - October 30th, 2002
(Latest kernel release is 2.5.44)

Items in bold have changed since last week. Items in grey are post Halloween (feature freeze).

Features:

Merged
o in 2.5.1+ Rewrite of the block IO (bio) layer (Jens Axboe)
o in 2.5.2 Initial support for USB 2.0 (David Brownell, Greg Kroah-Hartman, etc.)
o in 2.5.2 Per-process namespaces, late-boot cleanups (Al Viro, Manfred Spraul)
o in 2.5.2+ New scheduler for improved scalability (Ingo Molnar)
o in 2.5.2+ New kernel device structure (kdev_t) (Linus Torvalds, etc.)

o in 2.5.3  IDE layer update  (Andre Hedrick)  
o in 2.5.3  Support reiserfs external journal  (Reiserfs team)  
o in 2.5.3  Generic ACL (Access Control List) support  (Nathan Scott)  
o in 2.5.3  PnP BIOS driver  (Alan Cox, Thomas Hood, Dave Jones, etc.)  
o in 2.5.3+  New driver model & unified device tree  (Patrick Mochel)  
o in 2.5.4  Add preempt kernel option  (Robert Love, MontaVista team)  
o in 2.5.4  Support for Next Generation POSIX Threading  (NGPT team)  
o in 2.5.5  Add ALSA (Advanced Linux Sound Architecture)  (ALSA team)  
o in 2.5.5  Pagetables in highmem support  (Ingo Molnar, Arjan van de Ven)  
o in 2.5.5  New architecture: AMD 64-bit (x86-64)  (Andi Kleen, x86-64 Linux team)  
o in 2.5.5  New architecture: PowerPC 64-bit (ppc64)  (Anton Blanchard, ppc64 team)  
o in 2.5.6  Add JFS (Journaling FileSystem from IBM)  (JFS team)  
o in 2.5.6  per_cpu infrastructure  (Rusty Russell)  
o in 2.5.6  HDLC (High-level Data Link Control) update  (Krzysztof Halasa)  
o in 2.5.6  smbfs Unicode and large file support  (Urban Widmark)  
o in 2.5.7  New driver API for Wireless Extensions  (Jean Tourrilhes)  
o in 2.5.7  Video for Linux (V4L) redesign  (Gerd Knorr)  
o in 2.5.7  Futexes (Fast Lightweight Userspace Semaphores)  (Rusty Russell, etc.)  
o in 2.5.7+  NAPI network interrupt mitigation  (Jamal Hadi Salim, Robert Olsson, Alexey 
Kuznetsov)  
o in 2.5.7+  ACPI (Advanced Configuration & Power Interface)  (Andy Grover, ACPI team)  
o in 2.5.8  Syscall interface for CPU task affinity  (Robert Love)  
o in 2.5.8  Radix-tree pagecache  (Momchil Velikov, Christoph Hellwig)  
o in 2.5.9  Smarter IRQ balancing  (Ingo Molnar)  

o in 2.5.11 Replace old NTFS driver with NTFS TNG driver (Anton Altaparmakov)
o in 2.5.11 Fast walk dcache (Hanna Linder)
o in 2.5.11+ Rewrite of the framebuffer layer (James Simmons)
o in 2.5.12+ Rewrite of the buffer layer (Andrew Morton)

o in 2.5.14  Support for IDE TCQ (Tagged Command Queueing)  (Jens Axboe)  
o in 2.5.14  Bluetooth support (no longer experimental!)  (Maxim Krasnyansky, Bluetooth team)  
o in 2.5.17  New quota system supporting plugins  (Jan Kara)  

o in 2.5.17+ Move ISDN4Linux to CAPI based interface (Kai Germaschewski, ISDN4Linux team)
o in 2.5.18 Software suspend (to disk & RAM) (Pavel Machek)
o in 2.5.23 More complete IEEE 802.2 stack (Arnaldo, Jay Schullist, from Procom donated code)
o in 2.5.23+ Hotplug CPU support (Rusty Russell)
o in 2.5.25 Faster internal kernel clock frequency (Linus Torvalds)
o in 2.5.26 Direct pagecache <-> BIO disk I/O (Andrew Morton)
o in 2.5.27+ New VM with reverse mappings (Rik van Riel)
o in 2.5.28+ Serial driver restructure (Russell King)
o in 2.5.28 Remove the "Big IRQ lock" (Ingo Molnar)

o in 2.5.29+  Thread-Local Storage (TLS) support  (Ingo Molnar)  
o in 2.5.29+  Add Linux Security Module (LSM)  (LSM team)  
o in 2.5.29+  Strict address space accounting  (Alan Cox)  
o in 2.5.31+  Disk description cleanups  (Al Viro)  

o in 2.5.31 Support insane number of processes (Linus Torvalds)
o in 2.5.32 New MTRR (Memory Type Range Register) driver (Patrick Mochel)
o in 2.5.32+ Porting all input devices over to input API (Vojtech Pavlik, James Simmons)
o in 2.5.32+ Asynchronous IO (aio) support (Ben LaHaise)
o in 2.5.32+ Improved POSIX threading support (Ingo Molnar)

o in 2.5.33  SCTP (Stream Control Transmission Protocol)  (lksctp team)  
o in 2.5.33  TCP segmentation offload  (Alexey Kuznetsov)  
o in 2.5.34  discontigmem support (ia32)  (Pat Gaughen, Martin Bligh, Jack Steiner, Tony Luck) 

o in 2.5.34  POSIX threading support for signals  (Ingo Molnar)  
o in 2.5.35  Add User-Mode Linux (UML)  (Jeff Dike)  
o in 2.5.35  Serial ATA support  (Andre Hedrick)  
o in 2.5.36  Add XFS (A journaling filesystem from SGI)  (XFS team)  
o in 2.5.37  Remove the global tasklist  (Ingo Molnar, William Lee Irwin)  
o in 2.5.39  New IO scheduler  (Jens Axboe)  
o in 2.5.40  Add support for CPU clock/voltage scaling  (Dominik Brodowski, Erik Mouw, Dave 

Jones, Russell King, Arjan van de Ven)
o in 2.5.40 NUMA topology support (Matt Dobson)
o in 2.5.40 Parallelizing page replacement (Andrew Morton, Momchil Velikov, Dave Hansen, William Lee Irwin)

o in 2.5.42  Improved i2o (Intelligent Input/Ouput) layer  (Alan Cox)  
o in 2.5.42  Remove the 2TB block device limit  (Peter Chubb)  
o in 2.5.42  Add new CIFS (Common Internet File System)  (Steve French)  
o in 2.5.42  ext2/ext3 large directory support: HTree index  (Daniel Phillips, Christopher Li, 

Andrew Morton, Ted Ts'o)
o in 2.5.43 Add support for NFS v4 (NFS v4 team, Trond Myklebust, Neil Brown)
o in 2.5.43 Read-Copy Update (RCU) Mutual Exclusion (Dipankar Sarma, Rusty Russell, Andrea Arcangeli, LSE Team)

o in 2.5.43  Add OProfile, a low-overhead profiler  (John Levon)  
o in 2.5.43  Andrew File System (AFS) support  (David Howells)  
o in 2.5.44  x86 BIOS Enhanced Disk Device (EDD) polling  (Matt Domsch)  
o in 2.5.44  Plug'N Play Layer Rewrite  (Adam Belay)  
o in 2.5.45  Device mapper for Logical Volume Manager (LVM2)  (Alasdair Kergon, Patrick 
Caulfield, Joe Thornber)  
o in 2.5.45  Digital Video Broadcasting (DVB) layer  (LinuxTV team)  
o in 2.5.45  IPsec support  (Alexey Kuznetsov, Dave Miller, USAGI team)  
o in 2.5.45  CryptoAPI  (James Morris)  

o in -mm  Page table sharing  (Daniel Phillips, Dave McCracken)  
o in -mm  Extended Attributes and ACLs for ext2/ext3  (Ted Ts'o)  
o in -mm  Per-cpu hot & cold page lists  (Andrew Morton, Martin Bligh)  
o in -ac  MMU-less processor support (ucLinux)  (Greg Ungerer)  

o Ready  Build option for Linux Trace Toolkit (LTT)  (Karim Yaghmour)  
o Ready  Kernel Probes (kprobes)  (Vamsi Krishna, kprobes team)  
o Ready  High resolution timers  (George Anzinger, etc.)  
o Ready  EVMS (Enterprise Volume Management System)  (EVMS team)  
o Ready  Linux Kernel Crash Dumps  (Matt Robinson, LKCD team)  
o Ready  Rewrite of the console layer  (James Simmons)  
o Ready  Zerocopy NFS  (Hirokazu Takahashi)  
o Ready  Kexec, syscall to load kernel from kernel  (Eric Biederman)  
o Ready  New Linux configuration system  (Roman Zippel)  
o Ready  In-kernel module loader  (Rusty Russell)  
o Ready  Unified boot/parameter support  (Rusty Russell)  
o Ready  Support insane number of groups  (Tim Hockin)  
o Ready  Better I/O performance with epoll  (Davide Libenzi)  
o Ready  NUMA aware scheduler extensions  (Erich Focht, Michael Hohnbaum)  
o Ready  Replace initrd by initramfs  (H. Peter Anvin, Al Viro)  
o Ready  SCSI and FibreChannel Hotswap Support  (Steven Dake)  

o Beta Worldclass support for IPv6 (Alexey Kuznetsov, Dave Miller, Jun Murai, Yoshifuji Hideaki, USAGI team)
o Beta Reiserfs v4 (Reiserfs team)
o Beta SCSI multipath IO (with NUMA support) (Patrick Mansfield, Mike Anderson)

o Alpha  Basic NUMA API  (Matt Dobson)  
o Alpha  Remove waitqueue heads from kernel structures  (William Lee Irwin)  
o Alpha  NUMA aware slab allocator  (Manfred Spraul, Martin Bligh)  

o Started 32bit dev_t (?)

o Post-freeze  Change all drivers to new driver model  (All maintainers)  
o Post-freeze  Fix device naming issues  (Patrick Mochel, Greg Kroah-Hartman)  
o Post-freeze  Better event logging for enterprise systems  (Larry Kessler, evlog team)  
o Post-freeze  Page table reclamation  (William Lee Irwin, Rik Van Riel)  
o Post-freeze  UMSDOS (Unix under MS-DOS) Rewrite  (Al Viro)  
o Post-freeze  USB gadget support  (Stuart Lynne, Greg Kroah-Hartman)  
o Post-freeze  Overhaul PCMCIA support  (David Woodhouse, David Hinds)  
o Post-freeze  InfiniBand support  (InfiniBand team)  
o Post-freeze  Per-mountpoint read-only, union-mounts, unionfs  (Al Viro)  
o Post-freeze  More complete NetBEUI stack  (Arnaldo Carvalho de Melo, from Procom donated 
code)  
o Post-freeze  New mount API  (Al Viro)  
o Post-freeze  Add thrashing control  (Rik van Riel)  
o Post-freeze  Remove all hardwired drivers from kernel  (Alan Cox, etc.)  
o Post-freeze  Improved AppleTalk stack  (Arnaldo Carvalho de Melo)  
o Post-freeze  ext2/ext3 online resize support  (Andreas Dilger)  
o Post-freeze  New lightweight library (klibc)  (H. Peter Anvin)  
o Post-freeze  UDF Write support for CD-R/RW (packet writing)  (Jens Axboe, Peter Osterlund)  
o Post-freeze  Scalable Statistics Counter  (Ravikiran Thirumalai)  
o Post-freeze  Add hardware sensors drivers  (lm_sensors team)  

Cleanups:

Merged

o in 2.5.3  Break Configure.help into multiple files  (Linus Torvalds)  
o in 2.5.3  Untangle sched.h & fs.h include dependancies  (Dave Jones, Roman Zippel)  
o in 2.5.4  Per network protocol slabcache & sock.h  (Arnaldo Carvalho de Melo)  
o in 2.5.4  Per filesystem slabcache & fs.h  (Daniel Phillips, Jeff Garzik, Al Viro)  
o in 2.5.6  Killing kdev_t for block devices  (Al Viro)  
o in 2.5.18+  ->getattr() ->setattr() ->permission() changes  (Al Viro)  
o in 2.5.21  Split up x86 setup.c into managable pieces  (Patrick Mochel)  
o in 2.5.23+  Major MD tool (RAID 5) cleanup  (Neil Brown)  
o in 2.5.30  Remove khttpd  (Christoph Hellwig)  
o in 2.5.31  Rework datalink protocols to not use cli/sti  (Arnaldo Carvalho de Melo)  
o in 2.5.31  Remove incomplete SPX network stack  (Arnaldo Carvalho de Melo)  
o in 2.5.43  Remove kiobufs  (Andrew Morton)  

o in -mm Avoid dcache_lock while path walking (Maneesh Soni, IBM team)

o Ready Switch to ->get_super() for file_system_type (Al Viro)

o Beta  file.h and INIT_TASK  (Benjamin LaHaise)  
o Beta  Proper UFS fixes, ext2 and locking cleanups  (Al Viro)  
o Beta  Lifting limitations on mount(2)  (Al Viro)  

o Started Reorder x86 initialization (Dave Jones, Randy Dunlap)

Have some free time and want to help? Check out the Kernel Janitor TO DO list for a list of source code cleanups you can work on. A great place to start learning more about kernel internals!

In article <3DBFB0D2.21734.21E3A6B@localhost> (at Wed, 30 Oct 2002 10:13:38 -0500), "Guillaume Boissiere" <[email protected]> says:

How is the status of IPsec for IPv6?

We've almost done.

One thing that I'll contribute before the feature freeze is:
- Privacy Extensions for IPv6 addrconf

The remaining things which we DO want to see in 2.6 are:
- check is "rmmod ipv6" is ok
- IPv6 source address selection; which will be mandated by the node requirement.
- IPsec for IPv6
- make IPv6 non-experimental :-)
- several enhancements on specification conformity (neighbour discovery etc.)

Thanks.

Hideaki YOSHIFUJI @ USAGI Project <[email protected]>
GPG FP: 9022 65EB 1ECF 3AD1 0BDF  80D8 4807 F894 E062 0EEA

From: YOSHIFUJI Hideaki / 吉藤英明 <[email protected]>
Date: Thu, 31 Oct 2002 00:55:35 +0900 (JST)

How is the status of IPsec for IPv6?

It will be done after ipv4 side is fully functional.

- IPv6 source address selection; which will be mandated by the node requirement.

We told you several times how this USAGI patch is not currently in an acceptable form and needs to be reimplemented via the routing code.

- IPsec for IPv6

Alexey and I will implement this, it is basically reading RFCs and typing at the keyboard, no more.

- several enhancements on specification conformity (neighbour discovery etc.)

Where are these patches? I've applied everything you've submitted.

In article <[email protected]> (at Wed, 30 Oct 2002 14:36:15 -0800 (PST)), "David S. Miller" <[email protected]> says:

Yes, but I think
- integrate our code to your tree
then
- reimplement (re-design)
is better way to go forward.

This is because the code, which works well in O(n) as current one does, will tell you our needs and intentions better than our babble when you re-design it; I belive we will achieve better design in this way.

Yes, thanks.

I need to check the result of current code and
to look at diff by byte-to-byte before preparing
patches for current tree.

Hideaki YOSHIFUJI @ USAGI Project <[email protected]>
GPG FP: 9022 65EB 1ECF 3AD1 0BDF  80D8 4807 F894 E062 0EEA

From: YOSHIFUJI Hideaki / 吉藤英明 <[email protected]>
Date: Thu, 31 Oct 2002 11:48:32 +0900 (JST)

In article <[email protected]> (at Wed, 30 Oct 2002 14:36:15 -0800 (PST)), "David S. Miller" <[email protected]> says:

Yes, but I think
- integrate our code to your tree
then
- reimplement (re-design)
is better way to go forward.

Absolutely not, we do not put improperly architected code into the tree first then clean it up later.

Especially because this source address selection code interferes with many IPSEC issues. Source address selection belongs at routing tables, and there is no arguing about this. If you put it somewhere else it gets in the way and causes many problems.

Please implement source address selection properly, then resubmit. Thank you.

I need to check the result of current code and to look at diff by byte-to-byte before preparing patches for current tree.

Ok.

Hello!

Actually, I would propose... not to worry about this for a while. The issue might happen to dissolve after cleaning the space around ip6_route_output().

Alexey

In article <[email protected]> (at Wed, 30 Oct 2002 18:44:43 -0800 (PST)), "David S. Miller" <[email protected]> says:

That patch do NOT change current architecture so above is unfair.

It would be ok to say "we do not put code into the part of improperly architected code in the tree then clean it up later."

Hideaki YOSHIFUJI @ USAGI Project <[email protected]>
GPG FP: 9022 65EB 1ECF 3AD1 0BDF  80D8 4807 F894 E062 0EEA

From: YOSHIFUJI Hideaki / 吉藤英明 <[email protected]>
Date: Thu, 31 Oct 2002 12:16:09 +0900 (JST)

In article <[email protected]> (at Wed, 30 Oct 2002 18:44:43 -0800 (PST)), "David S. Miller" <[email protected]> says:

That patch do NOT change current architecture so above is unfair.

Ok, I correct myself, this patch adds more dependencies on badly architected area making it _harder_ for us to clean it up.