Differential D41405

Update comment describing vm_map
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Authored by kib on Aug 10 2023, 5:05 AM.

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dougm
alc
markj

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rG9da33e8d1073: Update comment describing struct vm_map

Summary

There is no list connecting all entries any more, and correspondingly no order on the list entries.

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rG FreeBSD src repository

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Event Timeline

kib created this revision.Aug 10 2023, 5:05 AM

Herald added a subscriber: imp. · View Herald TranscriptAug 10 2023, 5:05 AM

kib requested review of this revision.Aug 10 2023, 5:05 AM

dougm added inline comments.Aug 10 2023, 5:41 AM

sys/vm/vm_map.h
186	I agree that "The tree is" should replace "Both structures are", since one of the two structures mentioned in the original comment, the linked-list, disappeared when the tree became threaded. But I don't understand how the tree is no longer threaded. A threaded binary search tree is one where a node with no left child points with its left pointer to its leftmost ancestor, instead of NULL, and similarly for right children and ancestors. I don't think that has changed.

kib marked an inline comment as done.Aug 10 2023, 5:57 AM

kib added inline comments.

sys/vm/vm_map.h
186	I thought 'threaded' referred to the list linked all entries.

kib updated this revision to Diff 125799.Aug 10 2023, 5:58 AM

kib marked an inline comment as done.

kib edited the summary of this revision. (Show Details)

dougm accepted this revision.Aug 10 2023, 5:59 AM

This revision is now accepted and ready to land.Aug 10 2023, 5:59 AM

Closed by commit rG9da33e8d1073: Update comment describing struct vm_map (authored by kib). · Explain WhyAug 10 2023, 6:02 AM

This revision was automatically updated to reflect the committed changes.

kib added a commit: rG9da33e8d1073: Update comment describing struct vm_map.

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sys/

vm/

7 lines

Diff 125800

sys/vm/vm_map.h

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