Differential D49938

vm_object: use iterator in populate()
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Authored by dougm on Mon, Apr 21, 3:23 AM.

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kib
alc

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rGc802dd74bbcf: vm_object: use iterator in populate()

Summary

Use an iterator instead of tailq pointers in vm_object_populate().

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rG FreeBSD src repository

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Event Timeline

dougm requested review of this revision.Mon, Apr 21, 3:23 AM

dougm created this revision.

dougm added inline comments.Mon, Apr 21, 3:25 AM

sys/vm/vm_object.c
2156	I can't use VM_RADIX_FOREACH because when page[start] is NULL, the loop should end but VM_RADIX_FORALL would just start with the first page > start. I can't use VM_RADIX_FORALL because the original code can skip gaps of null pages, and FORALL cannot.

kib added inline comments.Mon, Apr 21, 2:05 PM

sys/vm/vm_object.c
2156	Perhaps add this text to the commit message, if not as a comment into the code.

Use the same iterator for grabbing and for unbusying. Use VM_RADIX_FORALL with an upper bound.

alc added inline comments.Thu, Apr 24, 8:15 PM

sys/vm/vm_object.c
2155–2156

dougm updated this revision to Diff 154241.Thu, Apr 24, 8:23 PM

kib accepted this revision.Thu, Apr 24, 11:37 PM

This revision is now accepted and ready to land.Thu, Apr 24, 11:37 PM

Closed by commit rGc802dd74bbcf: vm_object: use iterator in populate() (authored by dougm). · Explain WhyFri, Apr 25, 12:10 AM

This revision was automatically updated to reflect the committed changes.

dougm added a commit: rGc802dd74bbcf: vm_object: use iterator in populate().

Herald added a subscriber: imp. · View Herald TranscriptFri, Apr 25, 12:10 AM

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sys/

vm/

11 lines

Diff 154252

sys/vm/vm_object.c

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