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/mm/
A Dmigrate_device.c348 int extra = 1 + (page == fault_page); in migrate_vma_check_page() local
360 extra++; in migrate_vma_check_page()
364 extra += 1 + folio_has_private(folio); in migrate_vma_check_page()
366 if ((folio_ref_count(folio) - extra) > folio_mapcount(folio)) in migrate_vma_check_page()
A DKconfig.debug3 bool "Extend memmap on extra space for more information on page"
5 Extend memmap on extra space for more information on page. This
6 could be used for debugging features that need to insert extra
8 by not allocating this extra memory according to boottime
A DKconfig258 of extra pages since the bulk of user-controlled allocations
804 system allocator, which can cause extra fragmentation, particularly
/mm/kmsan/
A Dcore.c67 unsigned int extra) in kmsan_save_stack_with_flags() argument
79 return stack_depot_set_extra_bits(handle, extra); in kmsan_save_stack_with_flags()

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