VM_MAP_DELETE(9)

💅 VM_MAP_DELETE — the 9 girlies' kernel developer manual ✨

okay so bestie, you found yourself a Kernel Developer's Manual page (that's the 9 section, iykyk) and it's all about vm_map_delete. Buckle up, it's short but it EATS 🍓

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💖 NAME 💖

vm_map_delete — deallocates an address range from a map

Like, it takes a chunk of address space and just... yeets it. Gone. Free real estate. 🫶

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✨ SYNOPSIS ✨

the vibes, verbatim:

#include <sys/param.h>
#include <vm/vm.h>
#include <vm/vm_map.h>

int
vm_map_delete(vm_map_t map, vm_offset_t start, vm_offset_t end);

three includes, one function, zero drama. we love a low-maintenance icon 👑

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🌸 DESCRIPTION 🌸

okay so vm_map_delete() deallocates the address range bounded by start and end, and it does it from map. that's the whole thing. it takes the range, and it's like "not yours anymore bestie 💅".

literally the entire description. the manpage said what it said and then it stopped. iconic behaviour honestly.

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🎀 IMPLEMENTATION NOTES 🎀

so here's the thing, and I need you to really hear me on this one:

this function is for FreeBSD VM internal use only. it's giving "staff only" door, no cap.

if you're a FreeBSD VM consumer (hi, that's you, the person reading this), you should be calling vm_map_remove(9) instead. like, that's the one for you. vm_map_delete is not your main character, it's a backstage pass situation 🙈

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⭐ RETURN VALUES ⭐

the vm_map_delete() function always returns KERN_SUCCESS. always. every time. it does not miss. it does not have a bad day. KERN_SUCCESS and nothing else, fr fr 🔥

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🦋 SEE ALSO 🦋

• vm_map(9)
• vm_map_remove(9) ← genuinely go read this one, bestie

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👑 AUTHORS 👑

this manual page was written by Bruce M Simpson <bms@spc.org>. thank you for your service 🫡💜

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okay that's the whole page, you're all caught up 💖 this one came from Debian, dated July 19, 2003 — yeah she's a vintage, she's a classic, she's been serving since before some of us could read. mwah 🎀✨

now go call vm_map_remove(9) like a good VM consumer 🧚‍♀️