linux-kernel - Re: [PATCH 2/2] [v2] btrfs: use timespec64 for i

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Message-ID: <d5245617-046a-c261-fc8e-ae5908119899@suse.com>
Date:   Thu, 21 Jun 2018 19:09:38 +0300
From:   Nikolay Borisov <nborisov@...e.com>
To:     Arnd Bergmann <arnd@...db.de>, Chris Mason <clm@...com>,
        Josef Bacik <jbacik@...com>, David Sterba <dsterba@...e.com>
Cc:     Omar Sandoval <osandov@...com>, Liu Bo <bo.li.liu@...cle.com>,
        linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] [v2] btrfs: use timespec64 for i_otime



On 21.06.2018 19:04, Arnd Bergmann wrote:
> While the regular inode timestamps all use timespec64 now, the
> i_otime field is btrfs specific and still needs to be converted
> to correctly represent times beyond 2038.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Reviewed-by: Nikolay Borisov <nborisov@...e.com>

> ---
> v2: no changes
> ---
>  fs/btrfs/btrfs_inode.h | 2 +-
>  fs/btrfs/inode.c       | 4 ++--
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
> index 7e075343daa5..1343ac57b438 100644
> --- a/fs/btrfs/btrfs_inode.h
> +++ b/fs/btrfs/btrfs_inode.h
> @@ -178,7 +178,7 @@ struct btrfs_inode {
>  	struct btrfs_delayed_node *delayed_node;
>  
>  	/* File creation time. */
> -	struct timespec i_otime;
> +	struct timespec64 i_otime;
>  
>  	/* Hook into fs_info->delayed_iputs */
>  	struct list_head delayed_iput;
> diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
> index e9482f0db9d0..22dcc8afd38f 100644
> --- a/fs/btrfs/inode.c
> +++ b/fs/btrfs/inode.c
> @@ -5745,7 +5745,7 @@ static struct inode *new_simple_dir(struct super_block *s,
>  	inode->i_mtime = current_time(inode);
>  	inode->i_atime = inode->i_mtime;
>  	inode->i_ctime = inode->i_mtime;
> -	BTRFS_I(inode)->i_otime = timespec64_to_timespec(inode->i_mtime);
> +	BTRFS_I(inode)->i_otime = inode->i_mtime;
>  
>  	return inode;
>  }
> @@ -6349,7 +6349,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
>  	inode->i_mtime = current_time(inode);
>  	inode->i_atime = inode->i_mtime;
>  	inode->i_ctime = inode->i_mtime;
> -	BTRFS_I(inode)->i_otime = timespec64_to_timespec(inode->i_mtime);
> +	BTRFS_I(inode)->i_otime = inode->i_mtime;
>  
>  	inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0],
>  				  struct btrfs_inode_item);
>