Re: [PATCH 0/8] Support btime and other NFSv4 specific attributes

[bfields@fieldses.org (J. Bruce Fields)]

On Fri, Dec 17, 2021 at 03:48:46PM -0500, trondmy@kernel.org wrote:
> From: Trond Myklebust <trond.myklebust@hammerspace.com>
> 
> NFSv4 has support for a number of extra attributes that are of interest
> to Samba when it is used to re-export a filesystem to Windows clients.
> Aside from the btime, which is of interest in statx(), Windows clients
> have an interest in determining the status of the 'hidden', and 'system'
> flags.
> Backup programs want to read the 'archive' flags and the 'time backup'
> attribute.
> Finally, the 'offline' flag can tell whether or not a file needs to be
> staged by an HSM system before it can be read or written to.
> 
> The patch series also adds an ioctl() to allow userspace retrieval and
> setting of these attributes where appropriate. It also adds an ioctl()
> to allow retrieval of the raw NFSv4 ACCESS information, to allow more
> fine grained determination of the user's access rights to a file or
> directory. All of this information is of use for Samba.

Same question, what filesystem and server are you testing against?

--b.

> 
> Anne Marie Merritt (3):
>   nfs: Add timecreate to nfs inode
>   nfs: Add 'archive', 'hidden' and 'system' fields to nfs inode
>   nfs: Add 'time backup' to nfs inode
> 
> Richard Sharpe (1):
>   NFS: Support statx_get and statx_set ioctls
> 
> Trond Myklebust (4):
>   NFS: Expand the type of nfs_fattr->valid
>   NFS: Return the file btime in the statx results when appropriate
>   NFSv4: Support the offline bit
>   NFSv4: Add an ioctl to allow retrieval of the NFS raw ACCESS mask
> 
>  fs/nfs/dir.c              |  71 ++---
>  fs/nfs/getroot.c          |   3 +-
>  fs/nfs/inode.c            | 147 +++++++++-
>  fs/nfs/internal.h         |  10 +
>  fs/nfs/nfs3proc.c         |   1 +
>  fs/nfs/nfs4_fs.h          |  31 +++
>  fs/nfs/nfs4file.c         | 550 ++++++++++++++++++++++++++++++++++++++
>  fs/nfs/nfs4proc.c         | 175 +++++++++++-
>  fs/nfs/nfs4trace.h        |   8 +-
>  fs/nfs/nfs4xdr.c          | 240 +++++++++++++++--
>  fs/nfs/nfstrace.c         |   5 +
>  fs/nfs/nfstrace.h         |   9 +-
>  fs/nfs/proc.c             |   1 +
>  include/linux/nfs4.h      |   1 +
>  include/linux/nfs_fs.h    |  15 ++
>  include/linux/nfs_fs_sb.h |   2 +-
>  include/linux/nfs_xdr.h   |  80 ++++--
>  include/uapi/linux/nfs.h  | 101 +++++++
>  18 files changed, 1356 insertions(+), 94 deletions(-)
> 
> -- 
> 2.33.1