arm64: remove an unneeded test from pmap_clear_modify()
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Authored by alc on Jun 23 2021, 5:33 AM.

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Reviewers

andrew
kib
markj
manu

Commits

rG62ea198e95f1: arm64: remove an unneeded test from pmap_clear_modify()

Summary

The page table entry for a 4KB page mapping must be valid if a PV entry for the mapping exists, so there is no point in testing each page table entry's validity when iterating over a PV list.

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Repository

rG FreeBSD src repository

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Automatic diff as part of commit; lint not applicable.

Unit

Automatic diff as part of commit; unit tests not applicable.

Event Timeline

alc created this revision.Jun 23 2021, 5:33 AM

Herald added a reviewer: manu. · View Herald TranscriptJun 23 2021, 5:33 AM

Herald added a subscriber: emaste. · View Herald Transcript

alc requested review of this revision.Jun 23 2021, 5:33 AM

kib accepted this revision.Jun 23 2021, 5:54 AM

This revision is now accepted and ready to land.Jun 23 2021, 5:54 AM

markj accepted this revision.Jun 23 2021, 12:57 PM

Closed by commit rG62ea198e95f1: arm64: remove an unneeded test from pmap_clear_modify() (authored by alc). · Explain WhyJun 23 2021, 7:29 PM

This revision was automatically updated to reflect the committed changes.

alc added a commit: rG62ea198e95f1: arm64: remove an unneeded test from pmap_clear_modify().

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Path

Size

sys/

arm64/

pmap.c

3 lines

Diff 91273

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arm64: remove an unneeded test from pmap_clear_modify()ClosedPublicActions