I usually do the releases on a Sunday afternoon, but occasionally cut
the merge window short by a day just to keep people on their toes, and
make sure people learn not to send in last-minute pull requests. No
gaming the merge window to the last day. This is one such release.
To be fair, the reason I did it a day early this time around is less
to stop people from trying to time their pull requests, and mostly
because this has been a pretty big merge window, and not hugely
enjoyable. I ended up stopping doing pulls twice during the merge
window just because I was chasing down some random problem. That tends
to turn my busy merge window time from "busy" to "somewhat stressful".
But hey, it's all good now, and while 4.9 looks to be a big release
and we had a couple of hiccups, on the whole things look normal. The
big new thing is the greybus addition, which Greg swears is actually
getting used. But the bulk of the changes by far is actually a lot of
small details under the hood, as usual.
My own favorite "small detail under the hood" happens to be Andy
Lutomirski's new virtually mapped kernel stack allocations. They make
it easier to find and recover from stack overflows, but the effort
also cleaned up some code, and added a kernel stack mapping cache to
avoid any performance downsides. Al has also been working on some vfs
and uaccess cleanups (particularly a goo splice model cleanup) that I
follow. But realistically, what _I_ consider cool small details is
just my own personal thing, there's things all over.
The virtual stack mapping also happens to mean that people who try to
do DMA from temporary buffers on the stack ("Don't do it!") now really
need to change their evil ways. So there is some fallout from this,
and I expect a couple of drivers to need minor fixes. But it's all for
a good cause, really (and it isn't all that common, because doing DMA
from the stack really has never been a good idea, and is generally not
even workable in most situations).
But there really is a lot of other things going on, and the shortlog
that I do for other releases is much too big during rc1. So as usual,
I'm appending my "mergelog" instead, which gives a very high-level
view of what I merged and from whom. And as usual, I want to point out
that the person I merge from is not necessarily the person who did the
work: we had 1500 people involved in this release, only the top-level
maintainers get credited in my mergelog.
Go forth and test,
Linus
---
Al Viro (7):
VFS splice updates
misc vfs updates
splice fixups
vfs xattr updates
more vfs updates
uaccess.h prepwork
more misc uaccess and vfs updates
Alex Williamson (1):
VFIO updates
Alexandre Belloni (1):
RTC updates
Andrew Morton (2):
updates
more updates
Anna Schumaker (1):
NFS client updates
Arnd Bergmann (8):
ARM SoC cleanups
ARM SoC platform updates
ARM SoC defconfig updates
ARM SoC 64-bit updates
ARM SoC driver updates
ARM DT updates
ARM 64-bit DT updates
ARM SoC late DT updates
Bjorn Andersson (2):
remoteproc updates
rpmsg updates
Bjorn Helgaas (1):
PCI updates
Bob Peterson (1):
gfs2 updates
Borislav Petkov (1):
EDAC updates
Brian Norris (1):
MTD updates
Bruce Fields (1):
nfsd updates
Chris Mason (2):
btrfs updates
btrfs fixes
Dan Williams (1):
libnvdimm updates
Darren Hart (1):
x86 platform drivers updates
Dave Airlie (1):
drm updates
Dave Chinner (2):
xfs and iomap updates
XFS support for shared data extents
David Kleikamp (1):
jfs updates
David Miller (5):
networking updates
sparc updates
networking fixups
networking fixes
networking fixes
David Teigland (1):
dlm fix
David Vrabel (1):
xen updates
Dmitry Torokhov (2):
input subsystem updates
some more input subsystem updates
Doug Ledford (5):
hdi1 rdma driver updates
more rdma updates
main rdma updates
more rdma updates
rdma qedr RoCE driver
Eric Biederman (1):
namespace updates
Geert Uytterhoeven (1):
m68k updates
Greg KH (5):
char/misc driver updates
driver core updates
tty and serial updates
usb/phy/extcon updates
staging and IIO updates
Greg Ungerer (1):
m68knommu updates
Guenter Roeck (1):
hwmon updates
Hans-Christian Noren Egtvedt (1):
avr32 update
Helge Deller (2):
parisc updates
parisc fixes
Herbert Xu (1):
crypto updates
Ilya Dryomov (1):
Ceph updates
Ingo Molnar (14):
RCU updates
core SMP updates
EFI updates
locking updates
perf updates
RAS updates
scheduler changes
x86 apic updates
low-level x86 updates
x86 boot updates
x86 cleanups
x86 platform changes
x86 timer updates
x86 vdso updates
Jacek Anaszewski (1):
LED driver updates
Jaegeuk Kim (1):
f2fs updates
James Bottomley (2):
SCSI updates
more SCSI updates
James Hogan (1):
metag architecture fix
James Morris (1):
security subsystem updates
Jan Kara (1):
misc filesystem and quota fixes
Jeff Layton (1):
file locking updates
Jens Axboe (3):
block layer updates
blk-mq irq/cpu mapping updates
blk-mq CPU hotplug update
Jesper Nilsson (1):
CRIS updates
Jiri Kosina (3):
HID updates
livepatching updates
trivial updates
Joerg Roedel (1):
IOMMU updates
Jonathan Corbet (2):
documentation updates
one more documentation update
Jussi Brar (1):
mailbox updates
Kees Cook (2):
pstore updates
gcc plugins update
Lee Jones (2):
backlight updates
MFD updates
Ley Foon Tan (1):
nios2 update
Linus Walleij (2):
pin control updates
GPIO updates
Luis de Bethencourt (1):
befs fixes
Mark Brown (3):
regmap updates
regulator updates
spi updates
Martin Schwidefsky (1):
s390 updates
Mauro Carvalho Chehab (1):
media updates
Max Filippov (1):
Xtensa updates
Michael Ellerman (2):
powerpc updates
more powerpc updates
Michal Marek (2):
kbuild updates
misc kbuild changes
Mike Marshall (1):
orangefs updates
Mike Snitzer (1):
device mapper updates
Miklos Szeredi (2):
fuse updates
overlayfs updates
Paul Moore (1):
audit updates
Radim Krčmář (1):
KVM updates
Rafael Wysocki (5):
power management updates
ACPI updates
PNP update
more power management updates
more ACPI updates
Ralf Baechle (1):
MIPS updates
Richard Weinberger (1):
UBI/UBIFS updates
Rob Herring (1):
DeviceTree updates
Russell King (3):
ARM fix
ARM updates
ARM pcmcia updates
Sebastian Reichel (2):
power supply and reset updates
HSI fix
Shaohua Li (1):
MD updates
Shuah Khan (1):
kselftest updates
Stephen Boyd (1):
clk framework updates
Steve French (1):
cifs fixes
Steven Rostedt (1):
tracing updates
Takashi Iwai (2):
sound updates
sound fixes
Ted Ts'o (1):
ext4 updates
Tejun Heo (3):
libata updates
percpu updates
cgroup updates
Thierry Reding (1):
pwm updates
Thomas Gleixner (9):
timer updates
irq updates
CPU hotplug updates
timer fix
irq fixes
scheduler fix
perf tooling updates
x86 updates
protection keys syscall interface
Tomi Valkeinen (1):
fbdev updates
Ulf Hansson (1):
MMC updates
Vineet Gupta (1):
ARC updates
Vinod Koul (1):
dmaengine updates
Will Deacon (1):
arm64 updates
Wim Van Sebroeck (1):
watchdog updates
Wolfram Sang (2):
i2c updates
more i2c updates
Zhang Rui (1):
thermal managament updates
