queue_limits_commit_update(9)

💅 queue_limits_commit_update(9) — like, the actual commit button for your queue limits ✨

okay so this is a page from the Kernel API Manual, and bestie, it's a short one but it's lowkey important — it's giving "final step, no takebacks" energy 🎀

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🌸 NAME 🌸

queue_limits_commit_update — commit an atomic update of queue limits. that's it, that's the whole vibe. you got your limits all set up in a staging area and now you're hitting publish 👑

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✨ SYNOPSIS ✨

int queue_limits_commit_update (struct request_queue *q , struct
queue_limits *lim );

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🫶 ARGUMENTS 🫶

• q — the queue you're updating. the main character of this whole operation, fr.
• lim — the limits to apply. this is the payload, the ~content~, the thing that's actually going in 🔥

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💖 DESCRIPTION 💖

so here's the tea: you take the limits in lim — the ones you got from queue_limits_start_update and then edited yourself — and you apply them to q. that's the commit. it's atomic, it's clean, it slays 💅

⚠️ no cap, this part matters: the caller must have frozen the queue, or must ensure by other means that there are no outstanding I/Os. like, literally do not skip this. the vibes will not be immaculate if you do 😭

returns 0 if it worked — we love a success story — otherwise it returns a negative error code 💀

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🌈 SEE ALSO 🌈

• Kernel file ./block/blk-settings.c
• blk_set_stacking_limits(9)
• queue_limits_commit_update_frozen(9) — the frozen-queue variant, iykyk
• queue_limits_set(9)
• blk_stack_limits(9)
• queue_limits_stack_bdev(9)
• queue_limits_stack_integrity(9)
• blk_set_queue_depth(9)

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🦋 okay that's the whole page, bestie — go forth and commit those limits responsibly. this lil gem lives in ./block, it's from the October 2026 edition of the Kernel API Manual, and it goes by queue_limits_commit_update(9). mwah 💋✨