thp: change insert_pfn's return type to void
It would make more sense to have all the return values from vmf_insert_pfn_pmd() encoded in one place instead of having to follow the convention into insert_pfn(). Suggested by Jeff Moyer. Signed-off-by: NMatthew Wilcox <willy@linux.intel.com> Cc: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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