Re: 2.5.70-bk16: nfs crash

From: Linus Torvalds (
Date: Thu Jun 12 2003 - 10:49:53 EST

On Thu, 12 Jun 2003, Dipankar Sarma wrote:
> hlist poison patch is broken. list_del_rcu() and hlist_del_rcu()
> *must not* re-initialize the pointers. Maneesh submitted a patch
> earlier today that corrects this -

Sorry, but you're wrong.

If you depend on not re-initializing the pointers, you should not use the
"xxx_del()" function, and you should document it.

This is that the __xxx_del() functions are there for - they won't do the
poisoning. The regular delete functions have historically always poisoned
the pointers - it was only removed a few months ago by Andrew.


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