speed up madvise_need_mmap_write() usage
In the new madvise_need_mmap_write() call we can avoid an extra case statement and function call as follows. Signed-off-by: Jason Baron <jbaron@redhat.com> Cc: Nishanth Aravamudan <nacc@us.ibm.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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