linux-kernel - Re: [PATCH] btrfs: update target inode's ctime on unlink

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Message-ID: <ZrtfMK8KwSvm0I-p@infradead.org>
Date: Tue, 13 Aug 2024 06:27:12 -0700
From: Christoph Hellwig <hch@...radead.org>
To: Jeff Layton <jlayton@...nel.org>
Cc: Chris Mason <clm@...com>, Josef Bacik <josef@...icpanda.com>,
	David Sterba <dsterba@...e.com>, linux-btrfs@...r.kernel.org,
	linux-kernel@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH] btrfs: update target inode's ctime on unlink

On Mon, Aug 12, 2024 at 12:30:52PM -0400, Jeff Layton wrote:
> Unlink changes the link count on the target inode. POSIX mandates that
> the ctime must also change when this occurs.
> 
> Signed-off-by: Jeff Layton <jlayton@...nel.org>
> ---
> Found using the nfstest_posix testsuite with knfsd exporting btrfs.

Can you also wire this up for xfstests?  I suspect other file systems
might have similar issues, so running this as part of normal file system
QA would be helpful.