memblock_clear_nomap(9)

💅 memblock_clear_nomap(9)

okay so bestie, welcome to the Kernel API Manual ✨ — this one's a little function from the kernel's memory-block world, and honestly? it's giving "small but mighty." 🎀

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🌸 NAME 🌸

memblock_clear_nomap — clears the flag MEMBLOCK_NOMAP for a specified region. that's it, that's the whole vibe. 💅

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✨ SYNOPSIS ✨

int __init_memblock memblock_clear_nomap (phys_addr_t base , phys_addr_t size );

like, look at her. int return, __init_memblock section tag, two phys_addr_t args. iconic. 👑

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🦋 ARGUMENTS 🦋

• base — the base physical address of the region. the starting point, the "where we at" of it all 📍
• size — the size of the region. how much of it we're talking about, fr fr 📏

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⭐ RETURN ⭐

0 on success, -errno on failure. no cap — that's the whole contract. 🫶

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💜 SEE ALSO 💜

this is the part where the group chat gets long, and honestly we love that for us. 🌈

• Kernel file ./mm/memblock.c
• memblock overview(9)
• __memblock_find_range_bottom_up(9)
• __memblock_find_range_top_down(9)
• memblock_find_in_range_node(9)
• memblock_find_in_range(9)
• memblock_discard(9)
• memblock_double_array(9)
• memblock_merge_regions(9)
• memblock_insert_region(9)
• memblock_add_range(9)
• memblock_add_node(9)
• memblock_add(9)
• memblock_validate_numa_coverage(9)
• memblock_isolate_range(9)
• memblock_free(9)
• memblock_phys_free(9)
• memblock_setclr_flag(9)
• memblock_mark_hotplug(9)
• memblock_clear_hotplug(9)
• memblock_mark_mirror(9)
• memblock_mark_nomap(9)
• memblock_reserved_mark_noinit(9)
• memblock_reserved_mark_kern(9)
• memblock_mark_kho_scratch(9)
• memblock_clear_kho_scratch(9)
• __next_mem_range(9)
• __next_mem_range_rev(9)
• memblock_set_node(9)
• memblock_alloc_range_nid(9)
• memblock_phys_alloc_range(9)
• memblock_phys_alloc_try_nid(9)
• memblock_alloc_internal(9)
• memblock_alloc_exact_nid_raw(9)
• memblock_alloc_try_nid_raw(9)
• memblock_alloc_hugetlb(9)
• memblock_alloc_try_nid(9)
• __memblock_alloc_or_panic(9)
• memblock_estimated_nr_free_pages(9)
• memblock_is_region_memory(9)
• memblock_is_region_reserved(9)
• memblock_free_all(9)
• reserve_mem_find_by_name(9)
• reserve_mem_release_by_name(9)

like, that's the whole memblock cinematic universe right there. iykyk 💀✨

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and that's a wrap, bestie! 🧚 this little page lives under ./mm and it's dated October 2026, still signed memblock_clear_nomap(9) because consistency is literally the moment. 💖 slay, go clear some flags, and drink water. 🍓