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Joonsoo Kim authored
To merge all kinds of rmap traverse functions, try_to_unmap(), try_to_munlock(), page_referenced() and page_mkclean(), we need to extract common parts and separate out non-common parts. Nonlinear handling is handled just in try_to_unmap_file() and other rmap traverse functions doesn't care of it. Therfore it is better to factor nonlinear handling out of try_to_unmap_file() in order to merge all kinds of rmap traverse functions easily. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Hugh Dickins <hughd@google.com> Cc: Rik van Riel <riel@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Hillf Danton <dhillf@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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