Illumos support for btime/birth time? Fwd: [PATCH 0/5] fuse: support birth time

Illumos support for btime/birth time? Fwd: [PATCH 0/5] fuse: support birth time

[Cedric Blancher]

Good evening!

Does Illumos support the btime/birth time?

Ced

---------- Forwarded message ---------
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Thu, 10 Aug 2023 at 14:19
Subject: [PATCH 0/5] fuse: support birth time
To: <linux-fsdevel@vger.kernel.org>


Add the infrastructure for btime support in the form of a new STATX
request.

The format of the STATX reply is binary compatible with struct statx on
Linux, but the structure is defined separately in the fuse API for other
OS's.

Currently STATX only supports basic attributes, same as the GETATTR
request, plus btime.  But nothing prevents extending support to other
(present and future) statx fields.

---
Miklos Szeredi (5):
  fuse: handle empty request_mask in statx
  fuse: add STATX request
  fuse: add ATTR_TIMEOUT macro
  fuse: implement statx
  fuse: cache btime

 fs/fuse/dir.c             | 145 +++++++++++++++++++++++++++++++-------
 fs/fuse/fuse_i.h          |  15 +++-
 fs/fuse/inode.c           |  30 ++++++--
 fs/fuse/readdir.c         |   6 +-
 include/uapi/linux/fuse.h |  56 ++++++++++++++-
 5 files changed, 218 insertions(+), 34 deletions(-)

--
2.40.1



-- 
Cedric Blancher <cedric.blancher@gmail.com>
[https://plus.google.com/u/0/+CedricBlancher/]
Institute Pasteur

Re: [developer] Illumos support for btime/birth time? Fwd: [PATCH 0/5] fuse: support birth time

[Dan McDonald]

On Jan 15, 2024, at 2:38 PM, Cedric Blancher <cedric.blancher@gmail.com> wrote:
> 
> Good evening!
> 
> Does Illumos support the btime/birth time?

We do not have statx, but we do have A_CRTIME for "btime/birth time" in fgetattr(3c) & friends.  It's also filesystem-dependent: tmpfs doesn't have it, but ZFS does.

A modern coreutils version of stat(1) will show this works.

Dan