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VOP_LOOKUP.9: update locking info
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Authored by asomers on Nov 15 2017, 6:18 PM.
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Summary

VOP_LOOKUP.9: update locking info

Test Plan

This change was originally submitted to our private repo by Will, with a
comment that it originally came from kib. I don't know anything else about it.
If you two still think it's correct, I'll commit it.

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rS FreeBSD src repository - subversion
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Yes, the new statement is correct but perhaps is somewhat vague.

You may look at the kern/vnode_if.src to see that we do assert that dvp is locked on VOP_LOOKUP() entry and is kept locked on both successful and erroneous returns. But depending on the arguments, we might upgrade/downgrade the lock as needed.

This revision is now accepted and ready to land.Nov 17 2017, 3:25 PM
This revision was automatically updated to reflect the committed changes.