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From: Linus Torvalds <>
To: Linux Kernel Mailing List <>
Subject: Linux 5.8-rc1
Date: Sun, 14 Jun 2020 13:44:07 -0700	[thread overview]
Message-ID: <> (raw)

So I didn't really expect this, but 5.8 looks to be one of our biggest
releases of all time.

As of -rc1, it's right up there with v4.9, which has long been our
biggest release by quite a bit in number of commits. Yes, 5.8-rc1 has
a couple fewer commits than 4.9-rc1 did, but in many ways it's a much
more comprehensive release despite that.

The 4.9 kernel was artificially big partly because of the greybus
subsystem that was merged in that release, but also because v4.8 had
had a longer rc series and thus there was more pent up development. In
5.8, we have no sign of those kinds of issues making the release
bigger - there's just simply a lot of development in there.

And there are other kernel releases that have had more new lines -
v4.12 ends up being the undisputed size champion in that regard,
simply because it had a _huge_ number of new lines due to lots of
register descriptions for the AMD GPU drivers. Other kernels have been
similarly big due to particular subsystems (v4.2 had another AMD GPU
driver line count bump, 2.6.29 had a big staging driver additions,

But again, 5.8 is up there with the best, despite not really having
any single thing that stands out. Yes, there's a couple of big driver
changes (habanalabs and atomisp) that are certainly part of it, but
it's not nearly as one-sided as some of the other historical big
releases have been.

The development is really all over the place: there's tons of fairly
fundamental core work and cleanups, but there is also lots of
filesystem work and obviously all the usual driver updates too. Plus
documentation and archiecture work.

In fact, while 5.8-rc1 is "up there with the best" when it comes to
both number of commits and number of new lines, it's actually the
outstanding champion when it comes to number of files changed.  And
again, that's not because of some single tree-wide simple scripting
thing (the kernels with lots of SPDX license line changes have a lot
of files changed), but simply because of lots and lots of development

So in the 5.8 merge window we have modified about 20% of all the files
in the kernel source repository. That's really a fairly big
percentage, and while some of it _is_ scripted, on the whole it's
really just the same pattern: 5.8 has simply seen a lot of

IOW, 5.8 looks big. Really big.

In pure numbers: over 14k non-merge commits (over 15k counting
merges),  ~800k new lines, and over 14 thousand files changed.

It's worth noting that despite the size, it doesn't necessarily look
like a particularly troublesome release at least so far. Yes, the pure
size made this merge window a bit more stressful than I like, because
I _really_ like to have a few days of calm at the end to look at some
of the pull requests in more detail. This time around that never
really happened. But I only really had two pull requests I ended up
wanting to go through in more detail, so it all worked out fine.

So the pure size of this merge window did make me (once again)
consider making it more of a hard rule that pull requests with new
features (as opposed to the second wave of pull requests with just
fixes) absolutely _have_ to come in during the first week of the merge
window, but honestly, _most_ of the pull requests did in fact do that.
No, not all, and it could have been a bit more organized, and maybe I
got snippy with somebody, but on the whole things were pretty smooth
despite the large size.

Famous last words. Let's see what happens during the rest of this release.

But at least right now, while 5.8 looks like a very large release, I
don't get the feeling that it's particularly troublesome.

Knock wood.

Appended is the merge-log as usual. If you didn't get the idea yet
(IT'S BIG!) the shortlog would be much too unwieldly, even more so
than usual.



Al Viro (16):
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Alex Williamson (1):
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Andreas Gruenbacher (1):
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Andrew Morton (7):
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Eric Biederman (4):
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Greg KH (5):
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Helge Deller (1):
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Herbert Xu (2):
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Ingo Molnar (16):
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Jaegeuk Kim (1):
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James Bottomley (2):
    SCSI updates
    more SCSI updates

James Morris (1):
    lockdown update

Jan Kara (2):
    fsnotify updates
    ext2 and reiserfs cleanups

Jarkko Sakkinen (1):
    tpm updates

Jason Gunthorpe (2):
    hmm updates
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Jassi Brar (1):
    mailbox updates

Jean Delvare (1):
    dmi update

Jens Axboe (5):
    block updates
    block driver updates
    io_uring updates
    block fixes
    io_uring fixes

Jessica Yu (1):
    module updates

Jiri Kosina (2):
    HID updates
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Joerg Roedel (2):
    iommu updates
    iommu driver directory structure cleanup

John Johansen (1):
    apparmor updates

Jon Mason (1):
    NTB updates

Jonathan Corbet (2):
    documentation updates
    more documentation updates

Juergen Gross (1):
    xen updates

Kees Cook (1):
    pstore updates

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

Masahiro Yamada (3):
    Kbuild updates
    Kconfig updates
    more Kbuild updates

Matt Turner (1):
    alpha updates

Mauro Carvalho Chehab (2):
    media updates
    more media updates

Max Filippov (1):
    Xtensa updates

Micah Morton (1):
    SafeSetID update

Michael Ellerman (2):
    powerpc updates
    powerpc fix

Michael Tsirkin (1):
    virtio updates

Mike Marshall (1):
    orangefs updates

Mike Snitzer (1):
    device mapper updates

Miklos Szeredi (2):
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    fuse updates

Mimi Zohar (2):
    integrity updates
    integrity fix

Namjae Jeon (1):
    exfat update

Palmer Dabbelt (2):
    RISC-V updates
    more RISC-V updates

Paolo Bonzini (2):
    kvm updates
    more KVM updates

Paul Moore (2):
    audit updates
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Pavel Machek (1):
    LED updates

Petr Mladek (2):
    printk updates
    printk fix

Rafael Wysocki (5):
    power management updates
    ACPI updates
    PNP update
    more power management updates
    more ACPI updates

Rich Felker (1):
    arch/sh updates

Richard Weinberger (3):
    MTD updates
    UBI update
    UML updates

Rob Herring (2):
    devicetree updates
    Devicetree fixes

Russell King (2):
    ARM updates
    ARM fixes

Sebastian Reichel (1):
    power supply and reset updates

Shuah Khan (2):
    kselftest updates
    Kunit updates

Stafford Horne (1):
    OpenRISC update

Stephen Boyd (1):
    clk updates

Steve French (2):
    cifs updates
    more cifs updates

Steven Rostedt (1):
    tracing updates

Takashi Iwai (2):
    sound updates
    sound fixes

Ted Ts'o (1):
    ext4 updates

Tejun Heo (2):
    cgroup updates
    workqueue updates

Tetsuo Handa (1):
    tomoyo update

Thierry Reding (1):
    pwm updates

Thomas Bogendoerfer (1):
    MIPS updates

Thomas Gleixner (10):
    irq updates
    timer updates
    x86 timer updates
    x86 srbds fixes
    timer fix
    more x86 updates
    atomics rework
    the Kernel Concurrency Sanitizer
    x86 entry updates
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Ulf Hansson (1):
    MMC updates

Vasily Gorbik (1):
    s390 updates

Vinod Koul (1):
    dmaengine updates

Wei Liu (1):
    hyper-v updates

Will Deacon (3):
    arm64 updates
    READ/WRITE_ONCE rework
    arm64 fixes

Wim Van Sebroeck (1):
    watchdog updates

Wolfram Sang (1):
    i2c updates

             reply	other threads:[~2020-06-14 20:44 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-14 20:44 Linus Torvalds [this message]
2020-06-15  1:59 ` linux-next: stats (Was: Linux 5.8-rc1) Stephen Rothwell
2020-06-16 20:11 ` Linux 5.8-rc1 Gabriel C
2020-06-16 20:33   ` Arvind Sankar
2020-06-16 21:17     ` Gabriel C
2020-06-16 21:25       ` Arvind Sankar
2020-06-16 22:00         ` Gabriel C
2020-06-16 22:28           ` Arvind Sankar
2020-06-16 21:35       ` Gabriel C
2020-06-16 22:25         ` [PATCH] x86/purgatory: Add -fno-stack-protector Arvind Sankar
2020-06-17  0:06           ` Linus Torvalds
2020-06-16 20:37   ` Linux 5.8-rc1 Borislav Petkov
2020-06-16 21:19     ` Gabriel C

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