linux-kernel - Re: [PATCH v2 06/92] cifs: update the ctime on a partial page write

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Date:   Thu, 6 Jul 2023 10:26:18 -0500
From:   Steve French <smfrench@...il.com>
To:     Jeff Layton <jlayton@...nel.org>
Cc:     Christian Brauner <brauner@...nel.org>,
        Steve French <sfrench@...ba.org>,
        Paulo Alcantara <pc@...guebit.com>,
        Ronnie Sahlberg <lsahlber@...hat.com>,
        Shyam Prasad N <sprasad@...rosoft.com>,
        Tom Talpey <tom@...pey.com>, Al Viro <viro@...iv.linux.org.uk>,
        Jan Kara <jack@...e.cz>, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-cifs@...r.kernel.org,
        samba-technical@...ts.samba.org
Subject: Re: [PATCH v2 06/92] cifs: update the ctime on a partial page write

Reviewed-by: Steve French <stfrench@...rosoft.com>

On Wed, Jul 5, 2023 at 2:04 PM Jeff Layton <jlayton@...nel.org> wrote:
>
> POSIX says:
>
>     "Upon successful completion, where nbyte is greater than 0, write()
>      shall mark for update the last data modification and last file status
>      change timestamps of the file..."
>
> Add the missing ctime update.
>
> Signed-off-by: Jeff Layton <jlayton@...nel.org>
> ---
>  fs/smb/client/file.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
> index 879bc8e6555c..0a5fe8d5314b 100644
> --- a/fs/smb/client/file.c
> +++ b/fs/smb/client/file.c
> @@ -2596,7 +2596,7 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to)
>                                            write_data, to - from, &offset);
>                 cifsFileInfo_put(open_file);
>                 /* Does mm or vfs already set times? */
> -               inode->i_atime = inode->i_mtime = current_time(inode);
> +               inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode);
>                 if ((bytes_written > 0) && (offset))
>                         rc = 0;
>                 else if (bytes_written < 0)
> --
> 2.41.0
>


-- 
Thanks,

Steve