[PATCH v2 0/5] Cleanups and fixup for page_alloc

Miaohe Lin
2021-09-02T12:12:27Z

Hi all,
This series contains cleanups to remove meaningless VM_BUG_ON(), use
helpers to simplify the code and remove obsolete comment. Also we avoid
allocating highmem pages via alloc_pages_exact[_nid]. More details can
be found in the respective changelogs. Thanks!

v1->v2:
collect Reviewed-by and Acked-by tag
preserve valid comments for free_pcppages_bulk
send patch "mm/page_alloc.c: avoid accessing uninitialized pcp page
migratetype" separately.
s/__GFP_COMP/(__GFP_COMP|__GFP_HIGHMEM)/g throughout both
alloc_pages_exact() and alloc_pages_exact_nid()

Miaohe Lin (5):
mm/page_alloc.c: remove meaningless VM_BUG_ON() in pindex_to_order()
mm/page_alloc.c: simplify the code by using macro K()
mm/page_alloc.c: fix obsolete comment in free_pcppages_bulk()
mm/page_alloc.c: use helper function zone_spans_pfn()
mm/page_alloc.c: avoid allocating highmem pages via
alloc_pages_exact[_nid]

mm/page_alloc.c | 34 ++++++++++++----------------------
1 file changed, 12 insertions(+), 22 deletions(-)

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2.23.0