linux-kernel - Re: [PATCH 05/14] fs: remove inode_update

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Message-ID: <5usxhyehesfb7kwlxnaojzxmumx3twxgmdgg6e45lk3kke6oji@qu7poaekacre>
Date: Mon, 24 Nov 2025 14:06:15 +0100
From: Jan Kara <jack@...e.cz>
To: Christoph Hellwig <hch@....de>
Cc: Christian Brauner <brauner@...nel.org>, 
	Al Viro <viro@...iv.linux.org.uk>, David Sterba <dsterba@...e.com>, Jan Kara <jack@...e.cz>, 
	Mike Marshall <hubcap@...ibond.com>, Martin Brandenburg <martin@...ibond.com>, 
	Carlos Maiolino <cem@...nel.org>, Stefan Roesch <shr@...com>, Jeff Layton <jlayton@...nel.org>, 
	linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org, gfs2@...ts.linux.dev, 
	io-uring@...r.kernel.org, devel@...ts.orangefs.org, linux-unionfs@...r.kernel.org, 
	linux-mtd@...ts.infradead.org, linux-xfs@...r.kernel.org, linux-nfs@...r.kernel.org
Subject: Re: [PATCH 05/14] fs: remove inode_update_time

On Fri 14-11-25 07:26:08, Christoph Hellwig wrote:
> The only external user is gone now, open code it in the two VFS
> callers.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>

Looks good. Feel free to add:

Reviewed-by: Jan Kara <jack@...e.cz>

								Honza

> ---
>  fs/inode.c         | 23 ++++++++---------------
>  include/linux/fs.h |  1 -
>  2 files changed, 8 insertions(+), 16 deletions(-)
> 
> diff --git a/fs/inode.c b/fs/inode.c
> index 24dab63844db..d3edcc5baec9 100644
> --- a/fs/inode.c
> +++ b/fs/inode.c
> @@ -2107,19 +2107,6 @@ int generic_update_time(struct inode *inode, int flags)
>  }
>  EXPORT_SYMBOL(generic_update_time);
>  
> -/*
> - * This does the actual work of updating an inodes time or version.  Must have
> - * had called mnt_want_write() before calling this.
> - */
> -int inode_update_time(struct inode *inode, int flags)
> -{
> -	if (inode->i_op->update_time)
> -		return inode->i_op->update_time(inode, flags);
> -	generic_update_time(inode, flags);
> -	return 0;
> -}
> -EXPORT_SYMBOL(inode_update_time);
> -
>  /**
>   *	atime_needs_update	-	update the access time
>   *	@path: the &struct path to update
> @@ -2187,7 +2174,10 @@ void touch_atime(const struct path *path)
>  	 * We may also fail on filesystems that have the ability to make parts
>  	 * of the fs read only, e.g. subvolumes in Btrfs.
>  	 */
> -	inode_update_time(inode, S_ATIME);
> +	if (inode->i_op->update_time)
> +		inode->i_op->update_time(inode, S_ATIME);
> +	else
> +		generic_update_time(inode, S_ATIME);
>  	mnt_put_write_access(mnt);
>  skip_update:
>  	sb_end_write(inode->i_sb);
> @@ -2342,7 +2332,10 @@ static int file_update_time_flags(struct file *file, unsigned int flags)
>  
>  	if (mnt_get_write_access_file(file))
>  		return 0;
> -	ret = inode_update_time(inode, sync_mode);
> +	if (inode->i_op->update_time)
> +		ret = inode->i_op->update_time(inode, sync_mode);
> +	else
> +		generic_update_time(inode, sync_mode);
>  	mnt_put_write_access_file(file);
>  	return ret;
>  }
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index c895146c1444..a09cebdb4881 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -2665,7 +2665,6 @@ enum file_time_flags {
>  
>  extern bool atime_needs_update(const struct path *, struct inode *);
>  extern void touch_atime(const struct path *);
> -int inode_update_time(struct inode *inode, int flags);
>  
>  static inline void file_accessed(struct file *file)
>  {
> -- 
> 2.47.3
> 
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR