sbq_wait_ptr(9)

💖 sbq_wait_ptr(9) 💖

okay so welcome to the Kernel API Manual, bestie — this page is literally sbq_wait_ptr(9) and it's lowkey one of the shortest reads in the whole sbitmap cinematic universe. grab a boba, we're getting into it 🧋✨

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✨ NAME ✨

sbq_wait_ptr — get the next wait queue to use for a &struct sbitmap_queue.

like, that's it. that's the whole job. it's giving "next, please 💅" energy and honestly? iconic.

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💅 SYNOPSIS 💅

here's the exact signature, no cap, do not @ me:

struct sbq_wait_state * sbq_wait_ptr (struct sbitmap_queue *sbq ,
       atomic_t *wait_index );

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🎀 ARGUMENTS 🎀

• sbq — the bitmap queue to wait on. yes bestie, that's the entire description, we love a low-maintenance parameter 🌸
• wait_index — a counter per "user" of sbq. the quotes around user are literally in the original and i'm obsessed with the mystery of it 🙈 iykyk.

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🔥 RETURN 🔥

the next wait queue to be used. periodt. that's what comes back, that's the whole vibe check — no extra lore, no hidden side quests 💀🫶

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🌈 SEE ALSO 🌈

okay bestie, this is where the extended sbitmap universe shows up and it is stacked. the kernel file doing the heavy lifting here is ./include/linux/sbitmap.h, and it's carrying the whole cast:

• struct sbitmap_word(9)
• struct sbitmap(9)
• struct sbq_wait_state(9)
• struct sbitmap_queue(9)
• sbitmap_init_node(9)
• sbitmap_free(9)
• sbitmap_resize(9)
• sbitmap_get(9)
• sbitmap_any_bit_set(9)
• __sbitmap_for_each_set(9)
• sbitmap_for_each_set(9)
• sbitmap_show(9)
• sbitmap_weight(9)
• sbitmap_bitmap_show(9)
• sbitmap_queue_init_node(9)
• sbitmap_queue_free(9)
• sbitmap_queue_recalculate_wake_batch(9)
• sbitmap_queue_resize(9)
• __sbitmap_queue_get(9)
• __sbitmap_queue_get_batch(9)
• sbitmap_queue_get_shallow(9)
• sbitmap_queue_get(9)
• sbitmap_queue_min_shallow_depth(9)
• sbitmap_queue_clear(9)
• sbitmap_queue_clear_batch(9)
• sbitmap_queue_wake_all(9)
• sbitmap_queue_wake_up(9)
• sbitmap_queue_show(9)

like, twenty-eight whole entries?? the way this reference list ate and left absolutely no crumbs 👑🔥

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ngl the whole page is tiny but every single one of those references is doing its little main character moment. go read them, bestie, they're all right there 💜

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that's a wrap on this one, bestie 🫶 it came out of ./include/linux and it's dated October 2026, page name sbq_wait_ptr(9) and all — ok bye, love u, go read some more kernel docs ✨🎀🦋