LU-14478 ldiskfs: support Ubuntu 20.04.1 kernel 5.4.0-66
This patch fixes the conflict in ext4-pdirop.patch to support
Ubuntu 20.04.1 server with kernel version greater than or
equal to 5.4.0-66.
Lustre-commit:
d507f8648615d3e015cf4b20494bba734ab8a323
Lustre-change: https://review.whamcloud.com/41786
Test-Parameters: trivial
Change-Id: I336f5bb430f87aaefc6d79a782dfd779d20e0cf7
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-by: Yang Sheng <ys@whamcloud.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>
Reviewed-on: https://review.whamcloud.com/42015
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Li Xi <lixi@ddn.com>