Linux 4.2-rc1

From: Linus Torvalds
Date: Sun Jul 05 2015 - 16:23:04 EST

It's Sunday, two weeks have passed, and the merge window is closed. I
just pushed out the tag to the git trees, and tar-balls and patches
should be mirroring out too.

I thought this release would be one of the biggest ones ever, but it
turns out that it will depend on how you count. Just counting pure
commits, it is indeed one of the bigger rc1's in recent history, but
3.10-rc1 was almost as big, and then the final 3.10 grew from that
more than most. I doubt we'll match the 3.10 release, since we have
been getting progressively better at *not* merging tons of stuff after

And it turns out v3.15-rc1 had more commits than 4.2-rc1 does (by a
hair), so even there this isn't the biggest rc1 ever, if you count the
number of commits.

But it's certainly up there with the best of them. It's much too big
to post the shortlog, so as usual for rc1, appended is just my
"mergelog", with the people who are credited being the people I merge
from, which is usually not necessarily at all the same thing as the
people who actually authored the code. You'll need to go look at the
details in the git tree for that.

However, if you count the size in pure number of lines changed, this
really seems to be the biggest rc we've ever had, with over a million
lines added (and about a quarter million removed). That beats the
previous champion (3.11-rc1) that was huge mainly due to Lustre being
added to the staging tree.

The reason for that huge number of lines is largely a single source:
the bulk of this by far is from the new amd gpu register description
headers. In fact, just those register descriptor headers alone are
about 41% of the entire patch. The rest of the new amdgpu driver
itself is another 8% of the total, so we're in the somewhat odd
situation where a single driver is about half of the whole rc1 in
number of lines.

Aside from that unusual anomaly, the rest looks fairly normal - mainly
drivers and architecture updates. The Renesas H8/300 architecture came
back in a newly cleaned-up form, so we have some new(ish) architecture
support, but that's tiny and the bulk is ARM (with x86 a distant
second). Interestingly, there was quite a bit of low-level x86
changes: both source code re-organization for x86 entry code and lots
of FPU handling cleanups. That's fairly unusual, with low-level x86
code being fairly stable and seldom seeing those kinds of big changes.

Outside of the "drivers and architectures", there's a fair amount of
filesystem stuff, including some fundamental changes and cleanups to
symlink handling by Al. And all the usual updates to various
filesystems, networking, crypto, tools, testing, you name it.



Al Viro (2):
vfs updates
more vfs updates

Alex Deucher (1):
radeon and amdgpu fixes

Alex Williamson (1):
VFIO updates

Alexandre Belloni (1):
RTC updates

Andrew Morton (3):
first patchbomb
second patchbomb
third patchbomb

Bjorn Helgaas (1):
PCI updates

Bob Peterson (1):
GFS2 updates

Borislav Petkov (2):
EDAC updates
EDAC fix

Brian Norris (1):
MTD updates

Bruce Fields (1):
nfsd updates

Bryan Wu (1):
LED subsystem updates

Catalin Marinas (2):
arm64 updates
arm64 fixes (and cleanups)

Chris Mason (1):
btrfs updates

Chris Metcalf (1):
arch/tile updates

Dan Williams (1):
libnvdimm subsystem

Daniel Vetter (1):
drm EDID fix

Darren Hart (2):
x86 platform driver updates
late x86 platform driver updates

Dave Airlie (1):
drm updates

David Miller (3):
networking updates
sparc fixes
networking fixes

David Vrabel (1):
xen updates

Dmitry Torokhov (2):
input subsystem updates
second round of input updates

Dominik Brodowski (1):
PCMCIA update

Doug Ledford (1):
rdma updates

Eric Biederman (1):
user namespace updates

Geert Uytterhoeven (1):
m68k update

Grant Likely (1):
devicetree updates

Greg KH (5):
char/misc driver updates
driver core updates
staging driver updates
tty/serial driver updates
USB updates

Greg Ungerer (1):
m68knommu updates

Guenter Roeck (2):
hwmon updates
hwmon fixes

Herbert Xu (3):
crypto update
crypto fixes
crypto fixes

Ingo Molnar (17):
RCU updates
locking updates
perf updates
perf fixes
scheduler updates
x86 cleanups
x86 CPU features
x86 debugging documentation updates
x86 EFI updates
x86 FPU updates
x86 kdump updates
x86 warning fixlet
x86 core updates
max log buf size increase
perf updates
scheduler fixes
x86 fixes

Jaegeuk Kim (1):
f2fs updates

James Bottomley (1):
SCSI updates

James Morris (1):
security subsystem updates

Jan Kara (1):
UDF fixes and cleanups

Jani Nikula (1):
intel drm fixes

Jassi Brar (1):
mailbox updates

Jean Delvare (2):
DMI updates
more hwmon updates

Jens Axboe (6):
core block IO update
block driver updates
asm/scatterlist.h removal
cgroup writeback support
more block layer patches
block fixes

Jiri Kosina (3):
HID updates
livepatching fixes
trivial tree updates

Joerg Roedel (1):
IOMMU updates

Jon Mason (1):
NTB updates

Jonathan Corbet (1):
documentation updates

Kevin Hilman (6):
ARM SoC cleanups
ARM SoC platform support updates
ARM SoC DT updates
ARM SoC driver updates
ARM SoC defconfig updates
ARM SoC late fixes and dependencies

Lee Jones (2):
MFD updates
backlight updates

Ley Foon Tan (1):
nios2 update

Linus Walleij (2):
gpio updates
pin control updates

Mark Brown (3):
regmap updates
spi updates
regulator updates

Martin Schwidefsky (2):
s390 updates
more s390 updates

Mauro Carvalho Chehab (2):
media updates
edac updates

Michael Ellerman (1):
powerpc updates

Michael Tsirkin (1):
virtio/vhost cross endian support

Michael Turquette (1):
clock framework updates

Michal Marek (2):
kconfig updates
kbuild updates

Michal Simek (1):
Microblaze updates

Mike Snitzer (2):
device mapper updates
device mapper fixes

Miklos Szeredi (2):
fuse updates
overlayfs updates

Neil Brown (1):
md updates

Nicholas Bellinger (1):
SCSI target updates

Ohad Ben-Cohen (2):
hwspinlock updates
remoteproc updates

Paolo Bonzini (2):
first batch of KVM updates
kvm fixes

Paul Gortmaker (6):
__cpuinit removal
implicit module.h fixes
module_init replacement part one
module_init replacement part two
module_platform_driver replacement
init.h/module.h fragility fixes

Paul Moore (1):
audit updates

Rafael Wysocki (3):
power management and ACPI updates
power management and ACPI fixes
ACPICA updates

Ralf Baechle (1):
MIPS updates

Richard Weinberger (2):
UBI/UBIFS updates
UML updates

Russell King (2):
clkdev updates
ARM updates

Rusty Russell (1):
module updates

Sage Weil (1):
Ceph updates

Sebastian Reichel (2):
HSI updates
power supply and reset updates

Shuah Khan (1):
kselftest update

Steve French (1):
CIFS/SMB3 updates

Steven Rostedt (2):
tracing fixes
tracing updates

Sumit Semwal (1):
dma-buf updates

Takashi Iwai (2):
sound updates
sound fixes

Ted Ts'o (1):
ext4 updates

Tejun Heo (3):
libata updates
cgroup updates
workqueue updates

Thierry Reding (1):
pwm updates

Thomas Gleixner (8):
timer updates
NOHZ updates
irq updates
locking updates
scheduler updates
irq fixes
timer fixes
irq update

Tomi Valkeinen (2):
fbdev updates
fbdev fix

Tony Luck (4):
ia64 paravirt removal
pstore updates
ia64 updates
ia64 boot noise reduction fix

Trond Myklebust (1):
NFS client updates

Ulf Hansson (1):
MMC updates

Vineet Gupta (1):
ARC architecture updates

Vinod Koul (1):
dmaengine updates

Wim Van Sebroeck (1):
watchdog updates

Wolfram Sang (1):
i2c updates

Yoshinori Sato (1):
Renesas H8/300 architecture re-introduction

Zhang Rui (1):
thermal management updates
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