Remove duplicate cond_resched() definition

[ghost]

Signed-off-by: Ryan Moeller [email protected]

Motivation and Context

Description

How Has This Been Tested?

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)
• 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.

[ghost]

Previous definition nearby in same file is identical:
https://github.com/openzfs/zfs/pull/11131/files#diff-2341ebd47eb77d241b4735089712be50492f4a7ef3ff6d358b7d70269b854fbdR44

[amotin]

I was thinking it could be combined with adding another primitive for maybe_yeld(), but whatever.

[behlendorf]

I was thinking it could be combined with adding another primitive for maybe_yeld(), but whatever.

I'm fine with this as a first step. But I agree we should have portable wrappers for maybe_yield() and kern_yield(PRI_USER). For now on Linux they could both simply call cond_resched().