On Thu, Jul 03, 2014 at 05:52:12PM -0400, Naoya Horiguchi wrote: > We need the pagecache tags to be exported to userspace later in this > series for fincore(2), so this patch moves the definition to the new > include file for preparation. We also use the number of pagecache tags, > so this patch also adds it. > > Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> NACK. The radix tree tags are deeply internal implementation details. They are an artifact of the current mark-and-sweep writeback algorithm, and as such should never, ever be exposed to userspace, let alone fixed in an ABI we need to support forever more. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
