Re: [PATCH 2/4] mm: Only enforce stable page writes if the backingdevice requires it

[Christoph Hellwig]

On Tue, Nov 20, 2012 at 06:00:41PM -0800, Darrick J. Wong wrote:
> Create a helper function to check if a backing device requires stable page
> writes and, if so, performs the necessary wait.  Then, make it so that all
> points in the memory manager that handle making pages writable use the helper
> function.  This should provide stable page write support to most filesystems,
> while eliminating unnecessary waiting for devices that don't require the
> feature.

> +void wait_if_stable_page_write(struct page *page)

wait_for_stable_page() ?

Also this really needs a kerneldoc comment describing the usage.

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