linux-kernel - Re: [PATCH v2 63/92] omfs: convert to ctime accessor functions

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Message-ID: <20230706135205.jrxfi6d2555ct7cg@quack3>
Date:   Thu, 6 Jul 2023 15:52:05 +0200
From:   Jan Kara <jack@...e.cz>
To:     Jeff Layton <jlayton@...nel.org>
Cc:     Christian Brauner <brauner@...nel.org>,
        Bob Copeland <me@...copeland.com>,
        Al Viro <viro@...iv.linux.org.uk>, Jan Kara <jack@...e.cz>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-karma-devel@...ts.sourceforge.net
Subject: Re: [PATCH v2 63/92] omfs: convert to ctime accessor functions

On Wed 05-07-23 15:01:28, Jeff Layton wrote:
> In later patches, we're going to change how the inode's ctime field is
> used. Switch to using accessor functions instead of raw accesses of
> inode->i_ctime.
> 
> Acked-by: Bob Copeland <me@...copeland.com>
> Signed-off-by: Jeff Layton <jlayton@...nel.org>

Looks good. Feel free to add:

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

								Honza

> ---
>  fs/omfs/dir.c   | 4 ++--
>  fs/omfs/inode.c | 9 ++++-----
>  2 files changed, 6 insertions(+), 7 deletions(-)
> 
> diff --git a/fs/omfs/dir.c b/fs/omfs/dir.c
> index 82cf7e9a665f..6bda275826d6 100644
> --- a/fs/omfs/dir.c
> +++ b/fs/omfs/dir.c
> @@ -143,7 +143,7 @@ static int omfs_add_link(struct dentry *dentry, struct inode *inode)
>  	mark_buffer_dirty(bh);
>  	brelse(bh);
>  
> -	dir->i_ctime = current_time(dir);
> +	inode_set_ctime_current(dir);
>  
>  	/* mark affected inodes dirty to rebuild checksums */
>  	mark_inode_dirty(dir);
> @@ -399,7 +399,7 @@ static int omfs_rename(struct mnt_idmap *idmap, struct inode *old_dir,
>  	if (err)
>  		goto out;
>  
> -	old_inode->i_ctime = current_time(old_inode);
> +	inode_set_ctime_current(old_inode);
>  	mark_inode_dirty(old_inode);
>  out:
>  	return err;
> diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
> index c4c79e07efc7..2f8c1882f45c 100644
> --- a/fs/omfs/inode.c
> +++ b/fs/omfs/inode.c
> @@ -51,7 +51,7 @@ struct inode *omfs_new_inode(struct inode *dir, umode_t mode)
>  	inode_init_owner(&nop_mnt_idmap, inode, NULL, mode);
>  	inode->i_mapping->a_ops = &omfs_aops;
>  
> -	inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode);
> +	inode->i_atime = inode->i_mtime = inode_set_ctime_current(inode);
>  	switch (mode & S_IFMT) {
>  	case S_IFDIR:
>  		inode->i_op = &omfs_dir_inops;
> @@ -134,8 +134,8 @@ static int __omfs_write_inode(struct inode *inode, int wait)
>  	oi->i_head.h_magic = OMFS_IMAGIC;
>  	oi->i_size = cpu_to_be64(inode->i_size);
>  
> -	ctime = inode->i_ctime.tv_sec * 1000LL +
> -		((inode->i_ctime.tv_nsec + 999)/1000);
> +	ctime = inode_get_ctime(inode).tv_sec * 1000LL +
> +		((inode_get_ctime(inode).tv_nsec + 999)/1000);
>  	oi->i_ctime = cpu_to_be64(ctime);
>  
>  	omfs_update_checksums(oi);
> @@ -232,10 +232,9 @@ struct inode *omfs_iget(struct super_block *sb, ino_t ino)
>  
>  	inode->i_atime.tv_sec = ctime;
>  	inode->i_mtime.tv_sec = ctime;
> -	inode->i_ctime.tv_sec = ctime;
> +	inode_set_ctime(inode, ctime, nsecs);
>  	inode->i_atime.tv_nsec = nsecs;
>  	inode->i_mtime.tv_nsec = nsecs;
> -	inode->i_ctime.tv_nsec = nsecs;
>  
>  	inode->i_mapping->a_ops = &omfs_aops;
>  
> -- 
> 2.41.0
> 
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR