Date: Sun, 7 Dec 2008 18:32:09 +0000 (UTC) From: Warner Losh <imp@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/dev/pccbb pccbb_pci.c Message-ID: <200812071832.mB7IWFhK068742@repoman.freebsd.org>
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imp 2008-12-07 18:32:09 UTC
FreeBSD src repository
Modified files:
sys/dev/pccbb pccbb_pci.c
Log:
SVN rev 185740 on 2008-12-07 18:32:09Z by imp
Use atomic_add_int rather than a simple ++ to ensure no cache races if
the power interrupt and init code waiting for the interrupt are
running on different CPUs. I haven't seen this make any real
difference, but I've also had some reports of odd behavior I can't
otherwise explain. It is an infrequent operation, and certainly
wouldn't hurt.
Revision Changes Path
1.31 +1 -1 src/sys/dev/pccbb/pccbb_pci.c
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