Some cleanup patches found when reading vmalloc code.

v1->v2:
- In Patch 1, Uladzislau suggested a better way to improve code logic,
  and the NOTHING_FIT redundant checking issue naturally goes away.

- Take off the old patch 5 in v1. Instead convert to use generic
  ioremap code in arch codes, then rename the left ioremap_page_range().
  This should be done in later patches. This is suggested by Christoph.

Baoquan He (4):
  mm/vmalloc: invoke classify_va_fit_type() in adjust_va_to_fit_type()
  mm/vmalloc: remove the redundant boundary check
  mm/vmalloc: fix typo in local variable name
  mm/vmalloc: Add code comment for find_vmap_area_exceed_addr()

 mm/vmalloc.c | 46 +++++++++++++++++-----------------------------
 1 file changed, 17 insertions(+), 29 deletions(-)

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2.34.1