0.6.5.9 regression (compared to 0.6.5.8 and previous) : loop mounted luks encrypted files on zfs are read-only #5776
Description
System information
| Type | Version/Name |
|---|---|
| Distribution Name | CentOS |
| Distribution Version | 7.3 |
| Linux Kernel | 3.10.0-514.2.2.el7.x86_64 and 3.10.0-514.6.1.el7.x86_64 |
| Architecture | x86_64 |
| ZFS Version | 0.6.5.9 |
| SPL Version | 0.6.5.9 |
Describe the problem you're observing
I have luks encrypted files in my zfs filesystems.
Since 0.6.5.9, when I loop mount them, the filesystem are read-only.
Describe how to reproduce the problem
boot a centos7 machine, install0.6.5.9 zfs (kmod-zfs) and create a file based luks file (xfs formatted), put some files inside.
Create a zpool, put the newly created luks file inside and mount it. It will be mounted read-only.
Doing the same on a 0.6.5.8 zfs, works fine, the luks file is mounted read-write.