Date: Tue, 29 Mar 2005 05:23:11 -0500 (EST) From: Jeff Roberson <jroberson@chesapeake.net> To: David Malone <dwmalone@maths.tcd.ie> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern vfs_cache.c Message-ID: <20050329052244.J54623@mail.chesapeake.net> In-Reply-To: <20050329102154.GA20842@walton.maths.tcd.ie> References: <200503290958.j2T9wfq0025519@repoman.freebsd.org> <20050329102154.GA20842@walton.maths.tcd.ie>
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On Tue, 29 Mar 2005, David Malone wrote: > On Tue, Mar 29, 2005 at 09:58:41AM +0000, Jeff Roberson wrote: > > Log: > > - Invalidate the childrens v_dd pointers when we cache_purge() a directory. > > Otherwise the stale pointer may be accessed after a vnode is freed. > > I guess this has no impact on how likely we are to have a call to > realpath work because in the old version the generation number of > the vnode would have changed anyway? Yes, that is correct. This change eliminates a dependency on type-stable vnode storage that I missed. > > David. >
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