Drop KTR_CONTENTION.
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Authored by markj on Mar 20 2018, 3:16 PM.

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jhb
mjg

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rS331245: Drop KTR_CONTENTION.

Summary

It is incomplete, has not been adopted in the other locking primitives,
and we have other means of measuring lock contention (lock_profiling,
lockstat, KTR_LOCK). Drop it to slightly de-clutter the mutex code and
free up a precious KTR class index.

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Build Status

Buildable 15663
Build 15692: arc lint + arc unit

Event Timeline

markj created this revision.Mar 20 2018, 3:16 PM

Harbormaster completed remote builds in B15663: Diff 40499.Mar 20 2018, 3:16 PM

markj added reviewers: jhb, mjg.Mar 20 2018, 3:17 PM

the less ktr the better

This revision is now accepted and ready to land.Mar 20 2018, 3:26 PM

I think this is fine.

Closed by commit rS331245: Drop KTR_CONTENTION. (authored by markj). · Explain WhyMar 20 2018, 3:51 PM

This revision was automatically updated to reflect the committed changes.

Herald added a subscriber: imp. · View Herald TranscriptMar 20 2018, 3:51 PM

Revision Contents
Changeset List

Path

Size

sys/

kern/

kern_mutex.c

21 lines

sys/

ktr_class.h

2 lines

Diff 40499

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sys/kern/kern_mutex.c