> 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?
--
Chuck Lever
