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linux(4): Replace copyin() by fueword32() in handle_futex_death().

Description

linux(4): Replace copyin() by fueword32() in handle_futex_death().

According to fetch(9) fueword facility designed to fetch atomically
small amount of data from user space.

Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D31239
MFC after: 2 weeks

Details

Provenance
dchaginAuthored on Jul 29 2021, 9:48 AM
Reviewer
kib
Differential Revision
D31239: linux(4): Replace copyin() by fueword32() in handle_futex_death().
Parents
R10:20979f38c186: umtx: Add new pi_futex type.
Branches
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