linux-ext4 - Re: [PATCH 01/10] fs: turn inode ctime fields into a single ktime

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Message-ID: <20240702-obigen-boxte-267c97f21bba@brauner>
Date: Tue, 2 Jul 2024 13:42:21 +0200
From: Christian Brauner <brauner@...nel.org>
To: Jan Kara <jack@...e.cz>
Cc: Jeff Layton <jlayton@...nel.org>, 
	Christoph Hellwig <hch@...radead.org>, "Darrick J. Wong" <djwong@...nel.org>, 
	Alexander Viro <viro@...iv.linux.org.uk>, Steven Rostedt <rostedt@...dmis.org>, 
	Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, 
	Chandan Babu R <chandan.babu@...cle.com>, 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>, kernel-team@...com, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org, linux-xfs@...r.kernel.org, 
	linux-ext4@...r.kernel.org, linux-btrfs@...r.kernel.org, linux-mm@...ck.org, 
	linux-nfs@...r.kernel.org
Subject: Re: [PATCH 01/10] fs: turn inode ctime fields into a single ktime_t

> if the
> kernel silently tries to accept and fixup the breakage, it is nice in the
> short term (no complaining users) but it tends to get ugly in the long term
> (where tend people come up with nasty cases where it was wrong to fix it
> up).

Yeah, very much agree. It works for simple APIs sometimes but it's
certainly not something we should just do for filesystems with actual
on-disk format.