cvs commit: src/sys/kern vfs_cache.c

Jeff Roberson jroberson at
Tue Mar 29 02:23:13 PST 2005

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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