get_max_resource(9)

💅 get_max_resource(9) — the Kernel API Manual, bestie edition 🎀

okay so real talk, this is a page from the Kernel API Manual and it's about get_max_resource, which is literally the friend in the group chat who finds you the biggest possible thing that still fits your vibe. let's get into it ✨

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🌸 NAME 🌸

get_max_resource — get the largest node that has at least the given size. that's it, that's the whole personality 🫶

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✨ SYNOPSIS ✨

struct pci_resource * get_max_resource (struct pci_resource **head , u32
size );

yes the line break in the middle of the signature is iconic and we're keeping it exactly as-is, no notes 💅

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🦋 ARGUMENTS 🦋

• head — the list you want to search the node in. it's a struct pci_resource ** so like, pointer-to-pointer, main character energy ✨
• size — the minimum size of the node you're trying to find. a u32. it's giving "bare minimum" and honestly? valid.

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🌈 DESCRIPTION 🌈

so what does it actually do. okay:

it gets the largest node that is at least "size" big, from the list pointed to by head. lowkey the good stuff 🔥

and then — not me forgetting the detail — it aligns the node on top and bottom to the "size" alignment before returning it. so it's not just grabbing the biggest one, it's making it presentable. matching top and bottom, obsessed 🎀

no cap, that's the whole description. she's straightforward and she knows what she wants 💖

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👑 SEE ALSO 👑

this page has SO many friends, genuinely the most popular girl in the kernel file. the whole squad lives in the kernel file ./drivers/pci/hotplug/cpqphp_ctrl.c and here they all are, every single one, no cap:

• cpqhp_find_slot(9)
• sort_by_size(9)
• sort_by_max_size(9)
• do_pre_bridge_resource_split(9)
• do_bridge_resource_split(9)
• get_io_resource(9)
• get_resource(9)
• cpqhp_resource_sort_and_combine(9)
• cpqhp_slot_create(9)
• slot_remove(9)
• bridge_slot_remove(9)
• cpqhp_slot_find(9)
• set_controller_speed(9)
• board_replaced(9)
• board_added(9)
• remove_board(9)
• cpqhp_pushbutton_thread(9)
• switch_leds(9)
• cpqhp_hardware_test(9)
• configure_new_device(9)
• configure_new_function(9)

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💀 friendly reminder that these are all (9) kernel API pages, so like, kernel devs only. don't go calling these from your little userspace program bestie, i'm begging 🙈

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and that's the page!! mwah 💋 this one's from ./drivers/pci/hotplug, dated October 2026, and it's titled get_max_resource(9) — slay, ate, periodt. go find your biggest node, queen 👑✨🦋