mm/mmap: remove unnecessary assignment
pgoff is not used after the statement "pgoff = vma->vm_pgoff;", so the assignment is redundant. Signed-off-by: NYanchuan Nian <ycnian@gmail.com> Acked-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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