詳解ファイルシステム

ftp://ftp.kernel.org/pub/linux/kernel/v2.6/testing...

Atsushi Nemoto ~
Kazunori MIYAZAWA ~
Komuro ~
Masakazu Mokuno ~
Masatake YAMATO ~
Takashi Iwai ~
YOSHIFUJI Hideaki ~
Yoshihiro Shimoda ~

2.6.26-rc4_shortlog01 ~

List: linux-kernel
Subject: Linux 2.6.26-rc4
From: Linus Torvalds <torvalds () linux-foundation ! org>
Date: 2008-05-26 18:41:35

You know the drill by now: another week, another -rc.

There's a lot of small stuff in here, most people won't even notice. The
most noticeable thing is for all you 32-bit x86 people who use PAE
(enabled by the HIGHMEM64G config option) due to having too much memory in
your machine - mprotect() was broken due to some of the PAT fix/cleanup
patches, causing the NX bit to be not set correctly.

So if you had PAE enabled _and_ a recent enough CPU to have NX, but not
recent enough to be 64-bit (or you were just perverse and wanted to run a
32-bit kernel despite having a chip that could do 64-bit and enough memory
that you _really_ should have used a 64-bit kernel), you'd get various
random program failures with SIGSEGV. It ranged from X not starting up to
apparently OpenOffice not working if it did.

But most of the changes, as usual, are in drivers, at 60%, with some DRI
changes leading the way (fixing a number of other regressions, mainly by
reverting the under-cooked vblank update). Network, MMC, USB, watchdog and
IDE drivers also got updates.

We had CIFS and NFS updates, and some arch updates as usual. The dirstat
gives the overview:

2.0% arch/blackfin/
3.3% arch/powerpc/configs/
3.7% arch/powerpc/
10.4% arch/
4.5% drivers/ata/
15.4% drivers/char/drm/
15.8% drivers/char/
9.6% drivers/hwmon/
6.4% drivers/mmc/card/
6.5% drivers/mmc/
2.6% drivers/net/sfc/
8.4% drivers/net/
5.8% drivers/usb/class/
6.1% drivers/usb/
3.5% drivers/watchdog/
60.9% drivers/
7.7% fs/cifs/
2.5% fs/nfs/
12.7% fs/
4.5% include/
2.4% net/ipv4/
2.0% net/sunrpc/xprtrdma/
2.3% net/sunrpc/
6.7% net/

and I append the shortlog for a sense of the details. Nothing really
hugely exciting, I think we're doing pretty ok in the release cycle, and
I'm getting the feeling that things are calming down.

Hopefully I'm not wrong about that "calming down" feeling, but on the
whole this release cycle doesn't seem to have become _too_ painful.

　　　　　　　　　　　　　　Linus