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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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.

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Buildable 28261
Build 26379: arc lint + arc unit

Event Timeline

markj created this revision.Dec 12 2019, 12:57 AM

Harbormaster completed remote builds in B28093: Diff 65525.Dec 12 2019, 12:57 AM

markj added reviewers: alc, kib, jeff.Dec 12 2019, 1:03 AM

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().

Harbormaster completed remote builds in B28261: Diff 65860.Dec 20 2019, 4:44 PM

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

markj mentioned this in rS356155: Start implementing queue state updates using fcmpset loops..Dec 28 2019, 7:03 PM

Committed in r356155.

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sys/

vm/

vm_pageout.c

95 lines

Diff 65860

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Start implementing queue state updates using fcmpset loops. [5/5]ClosedPublicActions