umtx: Add umtxq_requeue Linux emulation layer extension.
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Authored by dchagin on Jul 20 2021, 2:10 PM.

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Reviewers

kib
markj

Commits

rG85f6b0c801ab: umtx: Add umtxq_requeue Linux emulation layer extension.
rG8e4d22c01d8f: umtx: Add umtxq_requeue Linux emulation layer extension.

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Repository

rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

dchagin created this revision.Jul 20 2021, 2:10 PM

Herald added a subscriber: imp. · View Herald TranscriptJul 20 2021, 2:10 PM

dchagin requested review of this revision.Jul 20 2021, 2:10 PM

Harbormaster completed remote builds in B40554: Diff 92490.Jul 20 2021, 2:10 PM

dchagin added reviewers: kib, markj.Jul 20 2021, 2:20 PM

dchagin changed the repository for this revision from rS FreeBSD src repository - subversion to rG FreeBSD src repository.

followup D31248

Harbormaster completed remote builds in B40575: Diff 92518.Jul 20 2021, 7:28 PM

the same problem as D31234

Harbormaster completed remote builds in B40605: Diff 92597.Jul 21 2021, 6:59 PM

kib accepted this revision.Jul 21 2021, 7:34 PM

This revision is now accepted and ready to land.Jul 21 2021, 7:34 PM

Closed by commit rG8e4d22c01d8f: umtx: Add umtxq_requeue Linux emulation layer extension. (authored by dchagin). · Explain WhyJul 29 2021, 9:46 AM

This revision was automatically updated to reflect the committed changes.

dchagin added a commit: rG8e4d22c01d8f: umtx: Add umtxq_requeue Linux emulation layer extension..

markj added inline comments.Mar 21 2022, 3:32 PM

sys/kern/kern_umtx.c
652	umtxq_sleep() cannot tolerate the queue hash changing like this. It will wake up with the wrong hash chain lock held.

dchagin added a commit: rG85f6b0c801ab: umtx: Add umtxq_requeue Linux emulation layer extension..Jun 17 2022, 7:38 PM

Revision Contents
Changeset List

Path

Size

sys/

kern/

kern_umtx.c

37 lines

sys/

umtxvar.h

1 line

Diff 92928

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sys/kern/kern_umtx.c