bfq_calc_vtime_jump(9)

💅 bfq_calc_vtime_jump — like, the whole vibe

okay bestie, welcome to the Kernel API Manual entry for bfq_calc_vtime_jump(9) ✨ this one's short and sweet and honestly? iconic for it.

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🌸 NAME 🌸

bfq_calc_vtime_jump — it computes the value that vtime should jump to, if it needs to jump at all, so that at least one entity ends up eligible 🫶 like it's literally out here making sure somebody's allowed to go.

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🦋 SYNOPSIS 🦋

u64 bfq_calc_vtime_jump (struct bfq_service_tree *st );

that's it. that's the whole signature. she's a u64, she takes one pointer, she serves 💅

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🎀 ARGUMENTS 🎀

• st — the service tree we're acting upon. the main character of this function, fr. that's the tree getting the vibe check.

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✨ DESCRIPTION ✨

so here's the tea: this function assumes that st is not empty. no cap, that's just the deal — it's written on the assumption that st is not empty, so don't come at it with an empty tree and expect cute results 🙈

and that's genuinely the entire description. she's lowkey minimal. highkey efficient. periodt.

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👑 SEE ALSO 👑

bestie there are so many siblings, buckle up:

• Kernel file ./block/bfq-wf2q.c
• bfq_gt(9)
• bfq_update_next_in_service(9)
• bfq_delta(9)
• bfq_calc_finish(9)
• bfq_entity_of(9)
• bfq_extract(9)
• bfq_idle_extract(9)
• bfq_insert(9)
• bfq_update_min(9)
• bfq_update_active_node(9)
• bfq_update_active_tree(9)
• bfq_active_insert(9)
• bfq_ioprio_to_weight(9)
• bfq_weight_to_ioprio(9)
• bfq_find_deepest(9)
• bfq_active_extract(9)
• bfq_idle_insert(9)
• bfq_forget_entity(9)
• bfq_put_idle_entity(9)
• bfq_forget_idle(9)
• bfq_bfqq_served(9)
• bfq_bfqq_charge_time(9)
• __bfq_activate_entity(9)
• __bfq_requeue_entity(9)
• bfq_activate_requeue_entity(9)
• __bfq_deactivate_entity(9)
• bfq_deactivate_entity(9)
• bfq_first_active_entity(9)
• __bfq_lookup_next_entity(9)
• bfq_lookup_next_entity(9)

that's the whole friend group, go say hi 🫶

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and that's the page, bestie!! sign-off time: this one lives over in ./block, and it's dated October 2026 🗓️💜 go forth and jump those vtimes responsibly ✨🎀