Compile fails when CONFIG_SWAP is not set.  Attaching the .config for
reference.

...

  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
mm/built-in.o: In function `swap_pages':
mm/mempolicy.c:576: undefined reference to `migrate_pages'
mm/mempolicy.c:577: undefined reference to `putback_lru_pages'
mm/mempolicy.c:578: undefined reference to `putback_lru_pages'
mm/built-in.o: In function `migrate_page_add':
mm/mempolicy.c:558: undefined reference to `isolate_lru_page'
mm/built-in.o: In function `do_mbind':
mm/mempolicy.c:677: undefined reference to `putback_lru_pages'
mm/built-in.o: In function `do_migrate_pages':
mm/mempolicy.c:606: undefined reference to `putback_lru_pages'
make: *** [.tmp_vmlinux1] Error 1


Thanks,
Kiran