From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 67831157E61; Thu, 26 Sep 2024 16:59:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727369988; cv=none; b=KFZqSsudVxjUOnB/wp+EfxywikuXBeE8mdaTfQHbAfkgrDzUzZbovkJcKcgG+UsQDjRYSQzd5DAD+8Upt2RWhXNr0SD5LQ2aFp9JdFqjxxmVMao4sWuVt6b6pCd4NFOI0+U+OZSNXRV4cY8O5LFcVyzd8Hzx5Qw3h7Fp0oXmy4I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727369988; c=relaxed/simple; bh=FvyFBt+Vd5UF2A+sqhYijCe2ynDIwnVNWV+evOwSXP0=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=B1SiIdFW46NHrhcKA1/acXKyGIfdRGzUO6oJuUKaO7IE995Z9i8dJ/BGNLPEXukuznYmuKMF8u2++mxYIMAZf1zO4VUmYKPWbE0C+E9tQSWDzm1kWYne+2qbSMhCE2v2YiytYXjJQE03FGKxmPteJxz7JnSgnr0CgGvlulVFyuI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=OyPAll4O; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="OyPAll4O" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender :Reply-To:Content-ID:Content-Description; bh=vZZTa11CAK73ciRtK/MoLNusDFg6dIj6Gmywiet9pEk=; b=OyPAll4OChxKP8zrcRtGRnwDsS zgKDZwCOCsLmEc3+M7QxVMRw982AGTIfUzIiE0r3n23a11U3UDZEMxLYNM618gxtGhCmRWJP9IslZ 9+fiZSZkbwBnKX2dlUHKkc3YWMFduEcnt37crCl9ejx+ykHfIKIsY2xu7mT6c09KLkFB6Nj2shRI/ b9o0cncTZMvy1eY9nrSfrqswutAzEmxTAPzp6LD6L9+WM7TNgOssSkIjNUWpwRnM5fRfscLCL093N 0O2bR8GyaCgxQdhUQxbDRrz9hy5l7wu9KZI/IeAiNOYxC27i+h5n/x1QgIcty/TPcFVrW1NPOWxWe lyN231og==; Received: from [50.53.2.24] (helo=[192.168.254.17]) by casper.infradead.org with esmtpsa (Exim 4.98 #2 (Red Hat Linux)) id 1strpz-000000078sX-1WvG; Thu, 26 Sep 2024 16:59:32 +0000 Message-ID: Date: Thu, 26 Sep 2024 09:59:21 -0700 Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 00/11] fs: multigrain timestamp redux To: Jeff Layton , John Stultz , Thomas Gleixner , Stephen Boyd , Alexander Viro , Christian Brauner , Jan Kara , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Jonathan Corbet , Chandan Babu R , "Darrick J. Wong" , Theodore Ts'o , Andreas Dilger , Chris Mason , Josef Bacik , David Sterba , Hugh Dickins , Andrew Morton , Chuck Lever , Vadim Fedorenko Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-mm@kvack.org References: <20240914-mgtime-v8-0-5bd872330bed@kernel.org> Content-Language: en-US From: Randy Dunlap In-Reply-To: <20240914-mgtime-v8-0-5bd872330bed@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit 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 > --- > --- > 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 # documentation bits for all patches if you want to. > change-id: 20240913-mgtime-20c98bcda88e > > Best regards,