linux: implement basic `sched_setattr` syscall
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Authored by ngie on Mon, Oct 5, 10:32 PM.

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None

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Linux Emulation

Summary

This change implements a portion of the sched_setattr syscall,
available on Linux. Please note that this change only implements the
scheduler policies that can be mapped on FreeBSD, e.g., SCHED_OTHER,
etc. Other Linux-specific policies, e.g., SCHED_DEADLINE, etc, have not
been implemented as they lack FreeBSD analogs.

MFC after: 2 weeks

Test Plan

Tested with LTP's sched_getattr and sched_setattr tests: P719.
Unfortunately many of the tests rely on SCHED_DEADLINE, so many they fail today (SCHED_DEADLINE doesn't map to any FreeBSD policies out of the box).

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Repository

rG FreeBSD src repository

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Unit

Tests Skipped

Build Status

Buildable 77748
Build 74631: arc lint + arc unit

Event Timeline

ngie created this revision.Mon, Oct 5, 10:32 PM

Herald added a subscriber: imp. · View Herald TranscriptMon, Oct 5, 10:32 PM

ngie requested review of this revision.Mon, Oct 5, 10:32 PM

Harbormaster completed remote builds in B77748: Diff 188769.Mon, Oct 5, 10:32 PM

ngie edited the test plan for this revision. (Show Details)Mon, Oct 5, 10:34 PM

ngie added a reviewer: Linux Emulation.

ngie edited the test plan for this revision. (Show Details)

ngie added inline comments.Mon, Oct 5, 10:41 PM

sys/compat/linux/linux_misc.c
1565–1568

ngie retitled this revision from linux: implement basic `sched_setparam` syscall to linux: implement basic `sched_setattr` syscall.Mon, Oct 5, 11:49 PM

ngie edited the summary of this revision. (Show Details)