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Differential D50394

vm_page_grab_pages: avoid doomed range lookups
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Authored by dougm on May 17 2025, 5:58 PM.
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rG26b3641f97d9: vm_page_grab_pages: avoid doomed range lookups
Summary

In vm_page_grab_pages, if a range of grabbed pages has just been exhausted, then an immediate request for a new range is futile; we know there's no page there. So only try to lookup more ranges after allocating a page.

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rG FreeBSD src repository
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dougm requested review of this revision.May 17 2025, 5:58 PM
dougm created this revision.
kib accepted this revision.May 17 2025, 6:07 PM
This revision is now accepted and ready to land.May 17 2025, 6:07 PM
markj accepted this revision.May 18 2025, 8:34 PM
Closed by commit rG26b3641f97d9: vm_page_grab_pages: avoid doomed range lookups (authored by dougm). · Explain WhyMay 19 2025, 4:00 AM
This revision was automatically updated to reflect the committed changes.
dougm added a commit: rG26b3641f97d9: vm_page_grab_pages: avoid doomed range lookups.
Herald added a subscriber: imp. · View Herald TranscriptMay 19 2025, 4:00 AM

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sys/
vm/
7 lines

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sys/vm/vm_page.c

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