linux-kernel - Re: [GIT pull] timers/core for v6.13-rc1

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Message-ID: <Zz3SLAW-97Zhjfhv@gmail.com>
Date: Wed, 20 Nov 2024 13:12:28 +0100
From: Ingo Molnar <mingo@...nel.org>
To: Christian Brauner <brauner@...nel.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
	x86@...nel.org
Subject: Re: [GIT pull] timers/core for v6.13-rc1


* Christian Brauner <brauner@...nel.org> wrote:

> On Tue, Nov 19, 2024 at 04:33:45PM -0800, Linus Torvalds wrote:
> > On Mon, 18 Nov 2024 at 11:22, Thomas Gleixner <tglx@...utronix.de> wrote:
> > >
> > 
> > >   - Core infrastructure for VFS multigrain timestamping
> > >
> > >     This is required to allow the kernel to use coarse grained time stamps
> > >     by default and switch to fine grained time stamps when inode attributes
> > >     are actively observed via getattr().
> > >
> > >     These changes have been provided to the VFS tree as well, so that the
> > >     VFS specific infrastructure could be built on top.
> > 
> > Bah. Except the vfs tree didn't take it as a shared branch, but
> > instead cherry-picked the commits and as a result they are duplicate
> > and caused a (trivial) merge conflict.
> 
> Wait, I'm confused. I definitely pulled that branch the day after Thomas
> gave it to me and in my vfs.mgtime branch I clearly see:
> 
> commit d7c898a73f875bd205df53074c1d542766171da1
> Merge: 8cf0b93919e1 2a15385742c6
> Author:     Christian Brauner <brauner@...nel.org>
> AuthorDate: Mon Oct 7 12:47:19 2024 +0200
> Commit:     Christian Brauner <brauner@...nel.org>
> CommitDate: Thu Oct 10 10:20:57 2024 +0200
> 
>     Merge tag 'timers-core-for-vfs' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip into vfs.mgtime
> 
>     Timekeeping interfaces for consumption by the VFS tree.
> 
>     Signed-off-by: Christian Brauner <brauner@...nel.org>
> 
> Unless I did something odd during the pull?

The problem was caused by two commits which got rebased in the VFS 
tree:

Commit 1:

  ee3283c608df ("timekeeping: Add interfaces for handling timestamps with a floor value")

  commit ee3283c608dfa21251b0821d7bb198c7ae3189f6
  Author:     Jeff Layton <jlayton@...nel.org>
  AuthorDate: Wed Oct 2 17:27:16 2024 -0400
  Commit:     Christian Brauner <brauner@...nel.org>
  CommitDate: Thu Oct 10 10:20:46 2024 +0200
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Which is a rebase of Thomas's original commit:

  70c8fd00a9bd ("timekeeping: Add interfaces for handling timestamps with a floor value")

  commit 70c8fd00a9bd0509bbf7bccd9baea8bbd5ddc756
  Author:     Jeff Layton <jlayton@...nel.org>
  AuthorDate: Wed Oct 2 17:27:16 2024 -0400
  Commit:     Thomas Gleixner <tglx@...utronix.de>
  CommitDate: Sun Oct 6 20:56:07 2024 +0200

And commit 2:

  2a15385742c6 ("timekeeping: Add percpu counter for tracking floor swap events")

  commit 2a15385742c689a271345dcbb4c28b9c568bc7ce
  Author:     Jeff Layton <jlayton@...nel.org>
  AuthorDate: Wed Oct 2 17:27:17 2024 -0400
  Commit:     Christian Brauner <brauner@...nel.org>
  CommitDate: Thu Oct 10 10:20:46 2024 +0200
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Which is a rebase of Thomas's original commit:

  96f9a366ec8a timekeeping: Add percpu counter for tracking floor swap events

  commit 96f9a366ec8abe027326d7aab84d64370019f0f1 (tag: timers-core-for-vfs)
  Author:     Jeff Layton <jlayton@...nel.org>
  AuthorDate: Wed Oct 2 17:27:17 2024 -0400
  Commit:     Thomas Gleixner <tglx@...utronix.de>
  CommitDate: Sun Oct 6 20:56:07 2024 +0200

Thanks,

	Ingo