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Message-ID: <fadc1ea2-fb43-41e2-af8c-8a93cf9e7865@infradead.org>
Date: Thu, 26 Sep 2024 09:59:21 -0700
From: Randy Dunlap <rdunlap@...radead.org>
To: Jeff Layton <jlayton@...nel.org>, John Stultz <jstultz@...gle.com>,
Thomas Gleixner <tglx@...utronix.de>, Stephen Boyd <sboyd@...nel.org>,
Alexander Viro <viro@...iv.linux.org.uk>,
Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>,
Steven Rostedt <rostedt@...dmis.org>, Masami Hiramatsu
<mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
Jonathan Corbet <corbet@....net>, Chandan Babu R <chandan.babu@...cle.com>,
"Darrick J. Wong" <djwong@...nel.org>, Theodore Ts'o <tytso@....edu>,
Andreas Dilger <adilger.kernel@...ger.ca>, Chris Mason <clm@...com>,
Josef Bacik <josef@...icpanda.com>, David Sterba <dsterba@...e.com>,
Hugh Dickins <hughd@...gle.com>, Andrew Morton <akpm@...ux-foundation.org>,
Chuck Lever <chuck.lever@...cle.com>,
Vadim Fedorenko <vadim.fedorenko@...ux.dev>
Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
linux-trace-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
linux-xfs@...r.kernel.org, linux-ext4@...r.kernel.org,
linux-btrfs@...r.kernel.org, linux-nfs@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v8 00/11] fs: multigrain timestamp redux
Hi Jeff,
On 9/14/24 10:07 AM, Jeff Layton wrote:
> This is a fairly small update to the v7 set. It seems to pass all of my
> testing. Again, most of the changes are in the first two patches, but
> there are some differences in the patch that adds percpu counters as
> well.
>
> Since the report of a performance regression came just before the merge
> window, it looks like we're going to have to wait for yet another
> release, so consider this version v6.13 material.
>
> Signed-off-by: Jeff Layton <jlayton@...nel.org>
> ---
> ---
> Jeff Layton (11):
> timekeeping: move multigrain timestamp floor handling into timekeeper
> fs: add infrastructure for multigrain timestamps
> fs: have setattr_copy handle multigrain timestamps appropriately
> fs: handle delegated timestamps in setattr_copy_mgtime
> fs: tracepoints around multigrain timestamp events
> fs: add percpu counters for significant multigrain timestamp events
> Documentation: add a new file documenting multigrain timestamps
> xfs: switch to multigrain timestamps
> ext4: switch to multigrain timestamps
> btrfs: convert to multigrain timestamps
> tmpfs: add support for multigrain timestamps
>
> Documentation/filesystems/index.rst | 1 +
> Documentation/filesystems/multigrain-ts.rst | 121 ++++++++++++
> fs/attr.c | 60 +++++-
> fs/btrfs/file.c | 25 +--
> fs/btrfs/super.c | 3 +-
> fs/ext4/super.c | 2 +-
> fs/inode.c | 278 +++++++++++++++++++++++++---
> fs/stat.c | 42 ++++-
> fs/xfs/libxfs/xfs_trans_inode.c | 6 +-
> fs/xfs/xfs_iops.c | 10 +-
> fs/xfs/xfs_super.c | 2 +-
> include/linux/fs.h | 36 +++-
> include/linux/timekeeping.h | 5 +
> include/trace/events/timestamp.h | 124 +++++++++++++
> kernel/time/timekeeping.c | 83 +++++++++
> kernel/time/timekeeping_debug.c | 12 ++
> kernel/time/timekeeping_internal.h | 3 +
> mm/shmem.c | 2 +-
> 18 files changed, 742 insertions(+), 73 deletions(-)
> ---
> base-commit: da3ea35007d0af457a0afc87e84fddaebc4e0b63
IME it would be better to make this series apply to linux-next-($latest)
instead of base mainline Linux. for integration reasons.
You can add
Tested-by: Randy Dunlap <rdunlap@...radead.org> # documentation bits
for all patches if you want to.
> change-id: 20240913-mgtime-20c98bcda88e
>
> Best regards,
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