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They represent higher-level attributes of migratetypes, like > is_migrate_movable() > > 2. They are ifdef'd, like is_migrate_isolate(). > > 3. For consistency with an is_migrate_*_page() helper, also like > is_migrate_isolate(). > > It looks like is_migrate_highatomic() was for case 3, but that was > removed in commit e0932b6c1f94 ("mm: page_alloc: consolidate free page > accounting"). > > So remove the indirection and go back to a simple comparison. > > Signed-off-by: Brendan Jackman > --- > mm/internal.h | 5 ----- > mm/page_alloc.c | 2 +- > 2 files changed, 1 insertion(+), 6 deletions(-) > LGTM. Reviewed-by: Zi Yan -- Best Regards, Yan, Zi