spl_vfs: fix vrele task runner signature mismatch

[aokblast]

Motivation and Context

Signature mismatch for vrele dispatcher

Description

How Has This Been Tested?

Build on FreeBSD

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.
• I have run the ZFS Test Suite with this change applied.
• All commit messages are properly formatted and contain Signed-off-by.

[amotin]

I have no objections, but I wonder why does it matter? Some sort of code analyzer? And also is this the only such case in the code?

PS: Please rebase on top of the new master to fix Fedora builds.

[aokblast]

Hello. Thanks for your review. I am importing Kernel CFI to FreeBSD. Here is the patch. https://reviews.freebsd.org/D46193.
I have sent 10 patches to FreeBSD base on fixing signature mismatch. I apologize on the annoying behavior. But I have no other way to fix all mismatch at one time excepts for digging into all zfs code. So I stareted a vm and let them running some tasks for 1 days. Fortunately, there is no KCFI trap triggered anymore. It means this maybe the latest patch on zfs about signature mismatch.

[amotin]

@aokblast Thanks. But when you are ready, please rebase as I have said, since I have no permissions to merge PRs that haven't passed required CI tests and somebody else would have to do it.

[aokblast]

Done.