speaker, clock: Replace Giant lock with fine-grained locking
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Authored by guest-seuros on Sat, Jan 10, 10:34 AM.

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Summary

Add sx lock to the speaker driver to protect spkr_active and spkr_inbuf,
removing the D_NEEDGIANT flag. Add mtx_lock_spin protection for timer2_state
in clock.c timer_spkr_acquire/release functions.

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Repository

rG FreeBSD src repository

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Build Status

Buildable 69782
Build 66665: arc lint + arc unit

Event Timeline

guest-seuros created this revision.Sat, Jan 10, 10:34 AM

Herald added a subscriber: imp. · View Herald TranscriptSat, Jan 10, 10:34 AM

guest-seuros requested review of this revision.Sat, Jan 10, 10:34 AM

Harbormaster completed remote builds in B69782: Diff 169446.Sat, Jan 10, 10:34 AM

Revision Contents
Changeset List

Path

Size

sys/

dev/

speaker/

spkr.c

73 lines

x86/

isa/

clock.c

12 lines

Diff 169446

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sys/dev/speaker/spkr.c