Date: Wed, 24 Nov 2010 10:56:46 -0500 From: Attilio Rao <attilio@freebsd.org> To: Konstantin Belousov <kib@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r215797 - head/sys/kern Message-ID: <AANLkTin1Bz-%2BV8MkiGABtMZL%2Bqy-1FXYchKNbdJagGwY@mail.gmail.com> In-Reply-To: <201011241230.oAOCUflT070176@svn.freebsd.org> References: <201011241230.oAOCUflT070176@svn.freebsd.org>
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2010/11/24 Konstantin Belousov <kib@freebsd.org>: > Author: kib > Date: Wed Nov 24 12:30:41 2010 > New Revision: 215797 > URL: http://svn.freebsd.org/changeset/base/215797 > > Log: > =C2=A0Allow shared-locked vnode to be passed to vunref(9). > =C2=A0When shared-locked vnode is supplied as an argument to vunref(9) an= d > =C2=A0resulting usecount is 0, set VI_OWEINACT and do not try to upgrade = vnode > =C2=A0lock. The later could cause vnode unlock, allowing the vnode to be > =C2=A0reclaimed meantime. Thanks a lot, I really appreciate that. The story here is that kib really wanted to commit another patch aiming for the vnode lock upgrade with a modify to lockmgr that I wasn't happy with (or more specifically that I really wished could be carried on in a different way). As this is a time-critical fix for him, that is probabilly a better comprom= ise. I'll try to find some time and go with the full patchset I have in mind, changing this to using upgrade. Attilio --=20 Peace can only be achieved by understanding - A. Einstein
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