Differential D18381

Allow to create swap zone larger than v_page_count / 2.
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Authored by kib on Nov 29 2018, 6:36 PM.

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alc
markj

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rS341375: Allow to create swap zone larger than v_page_count / 2.

Summary

If user configured maxswapzone tunable, just take the literal value for the initial zone sizing attempt. Before, it was only possible to reduce the zone by a tunable.

Reported by: jmg

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rS FreeBSD src repository - subversion

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Event Timeline

kib created this revision.Nov 29 2018, 6:36 PM

Herald added a subscriber: imp. · View Herald TranscriptNov 29 2018, 6:36 PM

Harbormaster completed remote builds in B21264: Diff 51363.Nov 29 2018, 6:36 PM

markj accepted this revision.Nov 29 2018, 9:40 PM

markj added inline comments.

sys/vm/swap_pager.c
550 ↗	(On Diff #51363)	Perhaps, "taking the user's requested size or estimating the number we need..."?
583 ↗	(On Diff #51363)	Did you make this change because uma_zone_reserve_kva() can round up?

This revision is now accepted and ready to land.Nov 29 2018, 9:40 PM

Comment rewording.

This revision now requires review to proceed.Nov 29 2018, 10:38 PM

kib marked an inline comment as done.Nov 29 2018, 10:39 PM

kib added inline comments.

sys/vm/swap_pager.c
583 ↗	(On Diff #51363)	Yes, somebody noted it to me long time ago, but I did not considered it worth fixing alone.

Harbormaster completed remote builds in B21269: Diff 51370.Nov 29 2018, 10:40 PM

markj accepted this revision.Nov 29 2018, 10:44 PM

This revision is now accepted and ready to land.Nov 29 2018, 10:44 PM

Closed by commit rS341375: Allow to create swap zone larger than v_page_count / 2. (authored by kib). · Explain WhyDec 1 2018, 4:50 PM

This revision was automatically updated to reflect the committed changes.

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Size

head/

sys/

vm/

12 lines

Diff 51473

head/sys/vm/swap_pager.c

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