bfq_reparent_leaf_entity(9)

💅 bfq_reparent_leaf_entity(9) — the kernel API manual, bestie edition 🎀

okay so you're reading the kernel API manual page for bfq_reparent_leaf_entity(9) and honestly? iconic of you. this is the one that moves a leaf entity up to the root_group. no cap, that's the whole vibe. 🦋

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✨ NAME ✨

bfq_reparent_leaf_entity — move leaf entity to the root_group. literally that's it, that's the function. 🫶

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🌸 SYNOPSIS 🌸

void bfq_reparent_leaf_entity (struct bfq_data *bfqd , struct bfq_entity
*entity , int ioprio_class );

look at that signature. ate. 💅

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🧚 ARGUMENTS 🧚

• bfqd — the device data structure with the root_group in it. this is the main character of the struct world, it's giving "i hold the root group" energy. 👑
• entity — the entity to move, but here's the nuance bestie, listen: if entity is a leaf, it's the entity to move; if entity is not a leaf, then it's the parent entity of an active leaf entity to move. yes it does double duty. no i will not be explaining further, that's literally what it says. 💀
• ioprio_class — the I/O priority class to reparent. that's the one. 🍓

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👀 SEE ALSO 👀

kernel file ./block/bfq-cgroup.c — and then the whole friend group, fr fr:

• bfq_stat_add(9)
• bfq_stat_read(9)
• bfq_stat_reset(9)
• bfq_stat_add_aux(9)
• blkg_prfill_stat(9)
• bfq_bfqq_move(9)
• __bfq_bic_change_cgroup(9)
• bfq_flush_idle_tree(9)
• bfq_reparent_active_queues(9)
• bfq_pd_offline(9)

all of them. every single one. i didn't skip anybody, i'm not that girl. 🌈

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lowkey reminder bestie: this page lives in ./block, dated October 2026, shipped under the kernel API manual. 💖

and that's the whole page!! slay, you now understand bfq_reparent_leaf_entity(9) ⭐🦋💜 — written with love, from ./block, October 2026, kernel API manual, version of record. mwah. 😭🎀