On Wed, Nov 28, 2007 at 05:10:53PM -0800, Christoph Lameter wrote:

+static inline loff_t page_cache_mask(struct address_space *a)
+{
+	return (loff_t)PAGE_MASK;
+}

A tiny question: Why choose loff_t instead of 'unsigned long'?

It's not obvious because page_cache_mask() is not referenced in this
patchset at all ;-)

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