On Fri, 2020-02-28 at 19:55 +0800, Yan, Zheng wrote:
> This series make cephfs client not request caps for open files that
> idle for a long time. For the case that one active client and multiple
> standby clients open the same file, this increase the possibility that
> mds issues exclusive caps to the active client.
>
> Yan, Zheng (4):
> ceph: always renew caps if mds_wanted is insufficient
> ceph: consider inode's last read/write when calculating wanted caps
> ceph: simplify calling of ceph_get_fmode()
> ceph: remove delay check logic from ceph_check_caps()
>
> fs/ceph/caps.c | 324 +++++++++++++++--------------------
> fs/ceph/file.c | 39 ++---
> fs/ceph/inode.c | 19 +-
> fs/ceph/ioctl.c | 2 +
> fs/ceph/mds_client.c | 5 -
> fs/ceph/super.h | 35 ++--
> include/linux/ceph/ceph_fs.h | 1 +
> 7 files changed, 188 insertions(+), 237 deletions(-)
>
> changes since v2
> - make __ceph_caps_file_wanted more readable
> - add patch 5 and 6, which fix hung write during testing patch 1~4
>
This patch series causes some serious slowdown in the async dirops
patches that I've not yet fully tracked down, and I suspect that they
may also be the culprit in these bugs:
https://tracker.ceph.com/issues/44381
https://tracker.ceph.com/issues/44382
I'm going to drop this series from the testing branch for now, until we
can track down the issue.
Thanks,
--
Jeff Layton <jlayton@xxxxxxxxxx>
