Venky Shankar 3e57686830 ceph: allow ceph.dir.rctime xattr to be updatable
[ Upstream commit d7a2dc523085f8b8c60548ceedc696934aefeb0e ]

`rctime' has been a pain point in cephfs due to its buggy
nature - inconsistent values reported and those sorts.
Fixing rctime is non-trivial needing an overall redesign
of the entire nested statistics infrastructure.

As a workaround, PR

     http://github.com/ceph/ceph/pull/37938

allows this extended attribute to be manually set. This allows
users to "fixup" inconsistent rctime values. While this sounds
messy, its probably the wisest approach allowing users/scripts
to workaround buggy rctime values.

The above PR enables Ceph MDS to allow manually setting
rctime extended attribute with the corresponding user-land
changes. We may as well allow the same to be done via kclient
for parity.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-14 18:32:44 +02:00
..
2020-10-16 11:11:22 -07:00
2021-09-18 13:40:15 +02:00
2022-06-09 10:21:06 +02:00
2020-09-10 14:03:31 -07:00
2022-06-09 10:21:16 +02:00
2021-11-26 10:39:22 +01:00
2020-10-23 11:33:41 -07:00
2020-10-23 11:33:41 -07:00
2021-12-14 11:32:40 +01:00
2020-10-24 12:40:18 -07:00
2020-08-27 16:06:47 -04:00