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Differential D54830

sched_ule: mark scheduler interface functions as weak symbols
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Authored by mchoo on Jan 22 2026, 5:38 PM.

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imp

olce

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olce

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Contributor Reviews (src)

Summary

When a kernel module scheduler is loaded, its sched_* implementation
will override GENERIC's weak sched interface.

As part of this effort, two more changes are included in this review:

sched_ule: add dummy sched_pctcpu_delta
Rename __inline to inline and reorder some static inline functions in sched.h

Test Plan

GENERIC build and boot succeeded.

Diff Detail

Repository

rG FreeBSD src repository

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Lint Passed

Unit

No Test Coverage

Build Status

Buildable 70066
Build 66949: arc lint + arc unit

Event Timeline

mchoo created this revision.Jan 22 2026, 5:38 PM

Herald added subscribers: olce, imp. · View Herald TranscriptJan 22 2026, 5:38 PM

mchoo requested review of this revision.Jan 22 2026, 5:38 PM

Harbormaster completed remote builds in B70066: Diff 170248.Jan 22 2026, 5:38 PM

mchoo edited the test plan for this revision. (Show Details)Jan 22 2026, 5:39 PM

mchoo added reviewers: Contributor Reviews (src), olce.

mchoo added a project: Contributor Reviews (src).

mchoo edited the test plan for this revision. (Show Details)Jan 22 2026, 5:42 PM

mchoo added inline comments.Jan 22 2026, 5:48 PM

sys/kern/sched_ule.c
3019	ULE doesn't need this, and personally I don't think any modern scheduler would require this. Should we provide this as `<sys/sched_4bsd.h>`?

mchoo mentioned this in D54831: Make ULE and 4BSD coexists.Jan 22 2026, 8:24 PM

mchoo abandoned this revision.Apr 21 2026, 10:16 AM

Revision Contents
Changeset List

Path

Size

sys/

kern/

sched_ule.c

96 lines

sys/

sched.h

43 lines

Diff 170248

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sys/kern/sched_ule.c