Date: Mon, 22 Nov 2010 02:42:02 +0000 (UTC) From: David Xu <davidxu@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern kern_umtx.c Message-ID: <201011220242.oAM2gJo8041443@repoman.freebsd.org>
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davidxu 2010-11-22 02:42:02 UTC
FreeBSD src repository
Modified files:
sys/kern kern_umtx.c
Log:
SVN rev 215652 on 2010-11-22 02:42:02Z by davidxu
Use atomic instruction to set _has_writer, otherwise there is a race
causes userland to not wake up a thread sleeping in kernel.
MFC after: 3 days
Revision Changes Path
1.89 +2 -1 src/sys/kern/kern_umtx.c
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