add_htab_mem_range(9)

✨ add_htab_mem_range(9) ✨

okay bestie, so this one is from the Kernel API Manual and it's giving "tiny function, very specific job" energy and honestly? i respect it. 💅

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🌸 NAME 🌸

add_htab_mem_range — adds the htab range to the given memory ranges list, if it exists. that's it. that's the whole gig. and she ate. 💖

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🦋 SYNOPSIS 🦋

int add_htab_mem_range (struct crash_mem **mem_ranges );

like literally that's the whole signature. short and iconic. 👑

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🎀 ARGUMENTS 🎀

• mem_ranges — the range list you're adding the memory range to. that's your canvas, your little memory-range scrapbook, your main character parameter. 🫶

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💜 DESCRIPTION 💜

okay so the actual deal here: it returns 0 on success, and a negative errno on error. that's the full contract, no cap. so check your return value, bestie — negative numbers are the villain arc and you do not want to be in that timeline. 😭

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🔥 SEE ALSO 🔥

the whole friend group, fr fr — these all live in the kernel file ./arch/powerpc/kexec/ranges.c:

• get_max_nr_ranges(9)
• get_mem_rngs_size(9)
• __add_mem_range(9)
• __merge_memory_ranges(9)
• sort_memory_ranges(9)
• realloc_mem_ranges(9)
• add_mem_range(9)
• add_tce_mem_ranges(9)
• add_initrd_mem_range(9)
• add_kernel_mem_range(9)
• add_rtas_mem_range(9)
• add_opal_mem_range(9)
• add_reserved_mem_ranges(9)
• get_reserved_memory_ranges(9)
• get_exclude_memory_ranges(9)
• get_usable_memory_ranges(9)
• get_crash_memory_ranges(9)

like a whole squad of range functions, all holding hands in ./arch/powerpc/kexec. 🌈✨

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ngl this one's a short read, but every detail matters, so don't skip the errno check. 💀

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later bestie 🫶 this lil page came from the ./arch/powerpc/kexec source, dated October 2026 — stay slay, stay sorted, and may all your ranges merge cleanly. 💖🎀🦋