pagetable_alloc(9)

pagetable_alloc(9) 💅 Kernel API Manual

🌸 NAME 🌸

pagetable_alloc — Allocate pagetables ✨

🎀 SYNOPSIS 🎀

struct ptdesc * pagetable_alloc (gfp_t gfp , unsigned int order );

🫶 ARGUMENTS 🫶

• gfp — GFP flags 🌈
• order — desired pagetable order 👑

🦋 DESCRIPTION 🦋

okay so pagetable_alloc is out here allocating memory for page tables, and it also gets you a page table descriptor to describe that memory. it’s giving “allocator with a descriptor side quest,” and honestly? iconic ✨

💖 RETURN 💖

the return value is the ptdesc describing the allocated page tables. that’s the main character you get back, periodt 🎀

🔥 SEE ALSO 🔥

Kernel file ./include/linux/mm.h — and the whole squad is: folio_page_idx(9), vma_flag_t(9), fault_flag_allow_retry_first(9), vma_kernel_pagesize(9), folio_order(9), folio_reset_order(9), folio_mapcount(9), folio_mapped(9), thp_order(9), thp_size(9), folio_get(9), folio_put(9), folio_put_refs(9), folios_put(9), vma_flags_is_cow_mapping(9), vma_is_cow_mapping(9), vma_desc_is_cow_mapping(9), folio_pfn(9), folio_mk_pte(9), folio_mk_pmd(9), folio_mk_pud(9), folio_maybe_dma_pinned(9), is_zero_page(9), is_zero_folio(9), folio_nr_pages(9), folio_next(9), folio_shift(9), folio_size(9), folio_maybe_mapped_shared(9), folio_expected_ref_count(9), zap_vma(9), ptdesc_address(9), ptdesc_set_kernel(9), ptdesc_clear_kernel(9), ptdesc_test_kernel(9), pagetable_free(9), vma_lookup(9), vma_start_pgoff(9), vma_end_pgoff(9), vma_last_pgoff(9), vma_start_anon_pgoff(9), vma_end_anon_pgoff(9), vma_last_anon_pgoff(9), mmap_action_remap(9), mmap_action_remap_full(9), mmap_action_ioremap(9), mmap_action_ioremap_full(9), mmap_action_simple_ioremap(9), mmap_action_map_kernel_pages(9), mmap_action_map_kernel_pages_full(9), range_is_subset(9), range_in_vma(9), range_in_vma_desc(9), clear_pages(9).

mwah 💋 source/version: ./include/linux, dated October 2026 — go be iconic with your pagetables 🧚‍♀️💜