Re: Q about pagecache data never written to disk

[William Lee Irwin III]

On Thu, Sep 09, 2004 at 11:32:01PM +1000, Nick Piggin wrote:
> writeback isn't, but the pages will get marked dirty at unmap.
> But I think I am wrong actually - I don't actually see why the
> user would have to have the file open.

Dirty memory "limits" have no force as applied to mmap() IO, which is
not a pretty state of affairs with respect to various attempts the VM
makes at mitigating data structure proliferation associated with dirty
data.


-- wli
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