Re: [patch][rfc] mm: hold page lock over page_mkwrite

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On Wed, 2009-02-25 at 10:36 +0100, Nick Piggin wrote:
> I want to have the page be protected by page lock between page_mkwrite
> notification to the filesystem, and the actual setting of the page
> dirty. Do this by holding the page lock over page_mkwrite, and keep it
> held until after set_page_dirty.

Are any of the filesystems ordering the journal lock outside the page
lock?  I thought ocfs2 and ext4 were either doing this or discussing it.
If they are, this will make fsblock hard to use for them.

-chris


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