reserve_mem_find_by_name(9)

✨ reserve_mem_find_by_name 💖

okay so bestie, welcome to reserve_mem_find_by_name(9) from the Kernel API Manual — yes we're in kernel land, yes it's giving big-brain energy, and yes I'm gonna walk you through it 🎀

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🌸 NAME 🌸

reserve_mem_find_by_name — literally just "find the reserved memory region that has this name," that's the whole vibe ✨

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🦋 SYNOPSIS 🦋

int reserve_mem_find_by_name (const char *name , phys_addr_t *start ,
       phys_addr_t *size );

three args, one int coming back at you, no cap 💅

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🎀 ARGUMENTS 🎀

• name — the name attached to a reserved memory region. it's the lil tag you're hunting for 🏷️
• start — if it's found, this holds the start address 🫶
• size — if it's found, this holds the size of the address.

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💜 DESCRIPTION 💜

start and size are only updated if name is found. like, only. if it's not found they stay exactly as they were, periodt 🙈

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👑 RETURN 👑

returns 1 if found, or 0 if not found. that's it, that's the whole answer key 🔥

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🌈 SEE ALSO 🌈

the kernel file ./mm/memblock.c, plus the whole memblock friend group — they all showed up to the group chat:

• 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_clear_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_release_by_name(9)

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ngl the see-also list is lowkey a whole friend group 😭 but every single one of them is invited, iykyk 💀

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and that's the page, bestie!! 🧚 mwah 💋 this one came from ./mm and it's dated October 2026, living under the reserve_mem_find_by_name(9) title — slay, iconic, see you in the next manpage 🌟🍓