[PATCH 0/8] mm/migrate.c: cleanup on do_pages_move()

[Wei Yang <richardw.yang@linux.intel.com>]

The logic in do_pages_move() is a little mess for audience to read and has
some potential error on handling the return value. Especially there are
three calls on do_move_pages_to_node() and store_status() with almost the
same form.

This patch set tries to make the code a little friendly for audience by
consolidate the calls and remove some unnecessary repeat code.

After this, we can do a better fix.

Wei Yang (8):
  mm/migrate.c: skip node check if done in last round
  mm/migrate.c: not necessary to check start and i
  mm/migrate.c: reform the last call on do_move_pages_to_node()
  mm/migrate.c: wrap do_move_pages_to_node() and store_status()
  mm/migrate.c: check pagelist in move_pages_and_store_status()
  mm/migrate.c: handle same node and add failure in the same way
  mm/migrate.c: move page on next iteration
  mm/migrate.c: use break instead of goto out_flush

 mm/migrate.c | 90 ++++++++++++++++++++++++++++------------------------
 1 file changed, 48 insertions(+), 42 deletions(-)

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2.17.1