On Wed, Dec 1, 2010 at 5:22 PM, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> What we're talking about is races against memory reclaim, unmount, etc.
Ahh. Those I can believe in. Although I think they'd almost
incidentally be fixed by making inode freeing (which is where the
'struct address_space' is embedded) RCU-safe, which we're going to do
anyway in 38. Then we could make the vmscan code just be a rcu-read
section.
Of course, I do think the race is basically impossible to hit in
practice regardless.
Linus
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