memblock_clear_kho_scratch(9)

🎀 NAME 🎀

memblock_clear_kho_scratch — okay so bestie, this one is literally just: clear the MEMBLOCK_KHO_SCRATCH flag for a specified region. That's it. That's the whole vibe. 💅

This page lives in the Kernel API Manual, and the function you're looking at is memblock_clear_kho_scratch(9). She's a little one, but she's iconic for what she does. ✨

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🌸 SYNOPSIS 🌸

int memblock_clear_kho_scratch (phys_addr_t base , phys_addr_t size );

Return type is int, bestie — she gives you back a number, not a struct, not a pointer, just a whole int. Noted. 🫶

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🦋 ARGUMENTS 🦋

• base — the base phys addr of the region 💖 so like, where the region starts in physical address space.
• size — the size of the region 🌸 like, how much of it there is. base + size = the region, iykyk.

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✨ RETURN ✨

• 0 on success — slay! 🎉
• -errno on failure — not slay, but that's the deal. 😭

So the return is literally <green>0 on success, -errno on failure</green>. No cap. 💀

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👑 SEE ALSO 👑

The kernel file for all of this is ./mm/memblock.c — that's the source of truth, the main character's house. 🏠 And here's the whole friend group, fr fr:

• 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)
• __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)

💡 Notice how memblock_mark_kho_scratch(9) is right there in the list? Yeah — she's the sister function. This page is the "un-mark" girly. 🧚

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That's the whole page, bestie!! Go clear that flag, get your 0, and live your truth. 💜🌈⭐

Sign-off szn 🎀 — this one's from ./mm, dated October 2026, and the page is memblock_clear_kho_scratch(9). Mwah. 😘💅