[Differential] [Request, 2 lines] D1833: Add memory barriers to buf_ring
zbb (Zbigniew Bodek)
phabric-noreply at FreeBSD.org
Fri Feb 13 12:21:46 UTC 2015
zbb created this revision.
zbb added reviewers: kmacy, rpaulo, imp.
zbb added a subscriber: freebsd-arm.
REVISION SUMMARY
This issue is mostly the fix for ARMv7 architecture. Make sure
that memory writes appear in correct order and that the correct
value is observable on the dequeue side.
Submitted by: Wojciech Macek <wma at semihalf.com>
Obtained from: Semihalf
REVISION DETAIL
https://reviews.freebsd.org/D1833
AFFECTED FILES
sys/sys/buf_ring.h
To: zbb, kmacy, rpaulo, imp
Cc: freebsd-arm
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