Re: [RFC][PATCH 0/3] beat kswapd with the proverbial clue-bat

[Jörn Engel]

On Wed, 15 September 2004 15:39:39 +0200, Arjan van de Ven wrote:
> 
> if your page is made unfreeable for the vm, for example by virtue of not
> being on the LRU or having an elevated count or.. or .. then such a page is
> pinned.
> 
> if your page is freeable byt he VM and your device is dmaing from/to it you
> have a really bad bug

Agreed.  skb->data should be safe as long as kfree_skb isn't called [1].
Thanks for the education.

[1] Actually, that does cause a really bad bug, but completely
unrelated to memory management.  kfree_skb does more than the name
indicates.  Patches will follow...

Jörn

-- 
Everything should be made as simple as possible, but not simpler.
-- Albert Einstein
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