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Start implementing queue state updates using fcmpset loops. [5/5]
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Authored by markj on Dec 12 2019, 12:57 AM.
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Details

Reviewers
alc
kib
jeff
Summary

Convert the laundry queue scan. This is similar to the inactive queue
scan, but a bit simpler since we do not dequeue pages.

Diff Detail

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Build Status
Buildable 28261
Build 26379: arc lint + arc unit

Event Timeline

Rename the next_page target to skip_page, and unbusy the page at the end
of the loop instead of having lots of inline calls to vm_page_xunbusy().

I don't love the extra goto labels but I didn't love the proliferation of xunbusy calls either.

This revision is now accepted and ready to land.Dec 20 2019, 11:07 PM