swq_has_sleeper(9)

💅 swq_has_sleeper(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes we're reading kernel docs together, this is our bonding time now 🫶

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✨ NAME ✨

swq_has_sleeper — check if there are any waiting processes 👀

Like literally, it's the "is anybody home??" of the kernel. No cap.

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🌸 SYNOPSIS 🌸

bool swq_has_sleeper (struct swait_queue_head *wq );

that's it, that's the whole vibe. one function, one pointer, returns a bool. simple, iconic, ate 💅

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🎀 ARGUMENTS 🎀

• wq — the waitqueue to test for waiters 🧚 like, this is the queue you're checking. the one you're side-eyeing. the one you're asking "so… anyone in there?"

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💖 DESCRIPTION 💖

Returns true if wq has waiting processes ✨

that's the whole thing. true = somebody's waiting, false = nobody's around, the queue is empty, it's giving ghost town 💀

real talk tho: please refer to the comment for swait_active 🙈 — the docs said it, not me. go read that comment, it's the source of truth, iykyk.

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🦋 SEE ALSO 🦋

• Kernel file ./include/linux/swait.h 📁
• swait_active(9)
• swait_event_idle_exclusive(9)
• swait_event_idle_timeout_exclusive(9)

the whole swait girlies, all linked up, all besties 🌈

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and that's the page!! 🎀 mwah 💋

lil sign-off: this one lives in ./include/linux, stamped October 2026, and it's swq_has_sleeper(9) — main character of the swait queue, periodt 👑💜