Linux 5.17 compat: PDE_DATA() renamed to pde_data()

[nabijaczleweli]

Motivation and Context

#13004

How Has This Been Tested?

Local build for pre-5.17, CI for 5.17.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Performance enhancement (non-breaking change which improves efficiency)
• Code cleanup (non-breaking change which makes code smaller or more readable)
• Breaking change (fix or feature that would cause existing functionality to change)
• Library ABI change (libzfs, libzfs_core, libnvpair, libuutil and libzfsbootenv)
• Documentation (a change to man pages or other documentation)

Checklist:

• My code follows the OpenZFS code style requirements.
• I have updated the documentation accordingly.
• I have read the contributing document.
• I have added tests to cover my changes. – none apply
• I have run the ZFS Test Suite with this change applied. – CI take my hand
• All commit messages are properly formatted and contain Signed-off-by.

[ckane]

Thanks, I'll test this out tonight

[satmandu]

I'm still seeing this error locally:

configure:48833: checking whether PDE_DATA() is available
configure:48841: error:
        *** None of the expected "PDE_DATA" interfaces were detected.
        *** This may be because your kernel version is newer than what is
        *** supported, or you are using a patched custom kernel with
        *** incompatible modifications.
        ***
        *** ZFS Version: zfs-2.1.2-1.3
        *** Compatible Kernels: 3.10 - 5.15

(For what it is worth I am building the kernel module on a 5.16.2 system using dkms pointing to the 5.17 headers...)

[nabijaczleweli]

uhoh, yeah, I didn't look hard enough and didn't notice the already-present PDE_DATA() config hunk; fixed, and actually passes on the buildd too now :) – please try again?

[behlendorf]

Looks good.

[satmandu]

uhoh, yeah, I didn't look hard enough and didn't notice the already-present PDE_DATA() config hunk; fixed, and actually passes on the buildd too now :) – please try again?

That works!

[ckane]

I suspect that this works, but there also seems to be another likely unrelated regression introduced by 5.17 that is causing the build to fail on my system, so I cannot run-time test it until that's fixed too. This does seem to properly address the PDE_DATA changes though.

[nabijaczleweli]

Picked on top of #12989