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To see a sorted result from page_owner, there must be a tiresome preprocessing step before running page_owner_sort. This patch simply filters out lines which start with "PFN" while reading the page owner report. Signed-off-by: Changhee Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Joonsoo Kim <[email protected]> Cc: Jonathan Corbet <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>