Differential D31280

linux(4): Handle special case for regular futex in handle_futex_death().
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Authored by dchagin on Jul 22 2021, 2:51 PM.

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kib
markj

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rG14f6f3bdcfe8: linux(4): Handle special case for regular futex in handle_futex_death().
rGb59cf25eac06: linux(4): Handle special case for regular futex in handle_futex_death().

Summary

Handle some races in handle_futex_death() which can prevents a wakeup of
potential waiters which can cause these waiters to block forever.

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Repository

rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

dchagin created this revision.Jul 22 2021, 2:51 PM

Herald added a subscriber: imp. · View Herald TranscriptJul 22 2021, 2:51 PM

dchagin requested review of this revision.Jul 22 2021, 2:51 PM

Harbormaster completed remote builds in B40627: Diff 92636.Jul 22 2021, 2:51 PM

dchagin added reviewers: kib, markj.Jul 22 2021, 2:53 PM

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

This revision was not accepted when it landed; it landed in state Needs Review.Jul 29 2021, 9:59 AM

Closed by commit rGb59cf25eac06: linux(4): Handle special case for regular futex in handle_futex_death(). (authored by dchagin). · Explain Why

This revision was automatically updated to reflect the committed changes.

dchagin added a commit: rGb59cf25eac06: linux(4): Handle special case for regular futex in handle_futex_death()..

dchagin added a commit: rG14f6f3bdcfe8: linux(4): Handle special case for regular futex in handle_futex_death()..Jun 17 2022, 7:38 PM

Revision Contents
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Path

Size

sys/

compat/

linux/

54 lines

Diff 92937

sys/compat/linux/linux_futex.c

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