linux-kernel - Re: [PATCH v2] ceph: fix snapshot directory timestamps

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Mon, 16 Mar 2020 13:34:53 -0400
From:   Jeff Layton <jlayton@...nel.org>
To:     Luis Henriques <lhenriques@...e.com>, Sage Weil <sage@...hat.com>,
        Ilya Dryomov <idryomov@...il.com>
Cc:     Marc Roos <M.Roos@...outsourcing.eu>, ceph-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] ceph: fix snapshot directory timestamps

On Wed, 2020-03-11 at 11:05 +0000, Luis Henriques wrote:
> The .snap directory timestamps are kept at 0 (1970-01-01 00:00), which
> isn't consistent with what the fuse client does.  This patch makes the
> behaviour consistent, by setting these timestamps (atime, btime, ctime,
> mtime) to those of the parent directory.
> 
> Cc: Marc Roos <M.Roos@...outsourcing.eu>
> Signed-off-by: Luis Henriques <lhenriques@...e.com>
> ---
>  fs/ceph/inode.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
> index d01710a16a4a..968d55ca898d 100644
> --- a/fs/ceph/inode.c
> +++ b/fs/ceph/inode.c
> @@ -82,10 +82,14 @@ struct inode *ceph_get_snapdir(struct inode *parent)
>  	inode->i_mode = parent->i_mode;
>  	inode->i_uid = parent->i_uid;
>  	inode->i_gid = parent->i_gid;
> +	inode->i_mtime = parent->i_mtime;
> +	inode->i_ctime = parent->i_ctime;
> +	inode->i_atime = parent->i_atime;
>  	inode->i_op = &ceph_snapdir_iops;
>  	inode->i_fop = &ceph_snapdir_fops;
>  	ci->i_snap_caps = CEPH_CAP_PIN; /* so we can open */
>  	ci->i_rbytes = 0;
> +	ci->i_btime = ceph_inode(parent)->i_btime;
>  
>  	if (inode->i_state & I_NEW)
>  		unlock_new_inode(inode);

Merged into testing branch -- thanks for the patch!
-- 
Jeff Layton <jlayton@...nel.org>