On Wed, 2007-10-17 at 17:30 +0200, Peter Zijlstra wrote:
> The thing is, swapper_space just calls ->writepage() and expects the
> page to be written out. So either the a_ops usage of swapper_space is
> deviant or NFS' is.
Could somebody please document WTF writepage() is supposed to do, and
WTF page_mkwrite() is for?
I thought that page_mkwrite() was supposed to finally allow us to deal
with dirty pages in a clean manner: the caller gets to tell the
filesystem that it wants the entire page written out, and then dirties
the page. What is the point if the VM then expects to be able to
circumvent this?
Trond
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