The 2.5 Todo List

[Posted July 19, 2002 by corbet]

From:		"Guillaume Boissiere" <boissiere@adiglobal.com>
To:		linux-kernel@vger.kernel.org
Subject:		[2.6] The List, pass #2
Date:		Fri, 19 Jul 2002 00:47:37 -0400

I've reorganized the list into 5 categories based on the feedback 
I received.  Now let's see what happens  :-)

In line with your expectations?

-- Guillaume


----------------------------------------------------
Likely to be merged before feature freeze:

  o New VM with reverse mappings
  o Add Linux Security Module (LSM)
  o New MTRR (Memory Type Range Register) driver
  o Add support for CPU clock/voltage scaling
  o Add User-Mode Linux (UML)
  o Direct pagecache <-> BIO disk I/O
  o Fix device naming issues
  o Remove the 2TB block device limit 

----------------------------------------------------
"The pressure is on! (TM)":
(either gets merged before feature freeze or has to wait till 2.7)

  o Rewrite of the console layer                    
  o XFS (A journaling filesystem from SGI)
  o LVM (Logical Volume Manager) v2.0
  o Zerocopy NFS
  o Asynchronous IO (aio) support
  o New kernel build system (kbuild 2.5)
  o Serial driver restructure                       
  o Replace initrd by initramfs
  o ext2/ext3 large directory support: HTree index

----------------------------------------------------
Can be merged after the feature freeze and before the 2.6 release:

  o Strict address space accounting                 
  o More complete NetBEUI stack                     
  o Add hardware sensors drivers                    
  o PCMCIA Zoom video support               
  o Change all drivers to new driver model
  o UDF Write support for CD-R/RW (packet writing)
  o USB gadget support

----------------------------------------------------
Would be nice to have before feature freeze, but most likely 2.7:

  o Improved i2o (Intelligent Input/Ouput) layer
  o Read-Copy Update Mutual Exclusion
  o New IO scheduler
  o Per-mountpoint read-only, union-mounts, unionfs
  o EVMS (Enterprise Volume Management System)
  o Dynamic Probes
  o Page table sharing
  o ext2/ext3 online resize support
  o Better event logging for enterprise systems
  o UMSDOS (Unix under MS-DOS) Rewrite
  o Scalable Statistics Counter
  o Linux Kernel Crash Dumps
  o SCTP (Stream Control Transmission Protocol)
  o High resolution timers
  o Overhaul PCMCIA support
  o Reiserfs v4
  o New lightweight library (klibc)
  o New mount API
  o Generic parameter/command line interface
  o Full compliance with IPv6
  o Serial ATA support      
  o Add support for NFS v4

----------------------------------------------------
Definitely 2.7:

o InfiniBand support
o Add thrashing control
o Remove all hardwired drivers from kernel

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The 2.5 Todo List - SATA support

Posted Jul 20, 2002 9:49 UTC (Sat) by yem (guest, #1138) [Link] (1 responses)

Anyone know more about the Serial ATA support? I had a peek at http://www.serialata.org/ and they seemed it indicate that it is a drop in replacement for parallel ATA. The FAQ explicitly states that there should be no change needed in any OS.

So what needs to be added to support SATA?

I read that Seagate will have a 60Gb SATA drive in stores next month, motherboards will be common by years end. I really don't want to wait for a 2.7 backport if SATA takes off.

The 2.5 Todo List - SATA support

Posted Jul 21, 2002 2:04 UTC (Sun) by Peter (guest, #1127) [Link]

The FAQ explicitly states that there should be no change needed in any OS.

Just a guess: the ATA controller will probably be like "regular" ATA controllers - it'll use the old, crufty ISA interface, which every OS supports, but if you want to use UDMA or other modern features, you'll have to have a specific driver. If Serial ATA is so similar to "regular" ATA, perhaps (for example) Intel's chipsets for it will be so similar to the PIIX4 / ICH series that Linux will use the same driver with only minor tweaks.

We shall see. And really, I have no idea.