> -----邮件原件-----
> 发件人: Chuck Lever III <chuck.lever@xxxxxxxxxx>
> 发送时间: 2024年1月17日 10:54
> 收件人: Dan Shelton <dan.f.shelton@xxxxxxxxx>
> 抄送: Linux NFS Mailing List <linux-nfs@xxxxxxxxxxxxxxx>
> 主题: Re: [PATCH] nfsv4: Add support for the birth time attribute
>
>
> > On Jan 16, 2024, at 3:17 PM, Dan Shelton <dan.f.shelton@xxxxxxxxx> wrote:
> >
> > On Tue, 16 Jan 2024 at 02:43, Chuck Lever III <chuck.lever@xxxxxxxxxx>
> wrote:
> >>
> >>> On Jan 15, 2024, at 8:02 PM, Dan Shelton <dan.f.shelton@xxxxxxxxx>
> wrote:
> >>>
> >>> On Mon, 15 Jan 2024 at 07:37, Chen Hanxiao <chenhx.fnst@xxxxxxxxxxx>
> wrote:
> >>>>
> >>>> This patch enable nfs to report btime in nfs_getattr.
> >>>> If underlying filesystem supports "btime" timestamp, statx will
> >>>> report btime for STATX_BTIME.
> >>>>
> >>>> Signed-off-by: Chen Hanxiao <chenhx.fnst@xxxxxxxxxxx>
> >>>> ---
> >>>> v1:
> >>>> Don't revalidate btime attribute
> >>>>
> >>>> RFC v2:
> >>>> properly set cache validity
> >>>>
> >>>> fs/nfs/inode.c | 23 ++++++++++++++++++++---
> >>>> fs/nfs/nfs4proc.c | 3 +++
> >>>> fs/nfs/nfs4xdr.c | 23 +++++++++++++++++++++++
> >>>> include/linux/nfs_fs.h | 2 ++
> >>>> include/linux/nfs_xdr.h | 5 ++++-
> >>>> 5 files changed, 52 insertions(+), 4 deletions(-)#
> >>>
> >>> Hello
> >>>
> >>> Where is the patch which adds support for btime to nfsd?
> >>
> >> Support for the birth time attribute was added to NFSD two years ago
> >> by commit e377a3e698fb ("nfsd: Add support for the birth time
> >> attribute").
> >
> > Which Linux versions (trunk, LTS, RT) have that commit?
>
> e377a3e698fb was merged in v5.18. You'll also need these two fixes:
>
> 5b2f3e0777da ("NFSD: Decode NFSv4 birth time attribute") (v5.19)
> d7dbed457c2e ("nfsd: Fix creation time serialization order") (v6.5)
>
> All three of those commits should be in:
>
> trunk: v6.5, v6.6, and v6.7
> stable/LTS: origin/linux-6.6.y
>
> I don't know which local file systems support birth time. I think maybe ext4 and
> xfs do?
AFAIK,
Xfs
Ext4
btrfs
cephfs
f2fs
support birth time.
Regards,
- Chen
>
>
> --
> Chuck Lever
>
