vdo_waitq_get_first_waiter(9)

okay bestie, welcome to the vdo_waitq_get_first_waiter(9) page from the Kernel API Manual. This is the whole lowdown on grabbing the first waiter from a wait queue, and it’s giving very specific “head of the line” energy 💅

💖 NAME 💖

vdo_waitq_get_first_waiter — Return the waiter that is at the head end of a waitq. That’s the official one-liner, bestie, and it’s literally all about the waiter at the head end of a waitq ✨

✨ SYNOPSIS ✨

struct vdo_waiter * vdo_waitq_get_first_waiter (const struct
       vdo_wait_queue *waitq );

🎀 ARGUMENTS 🎀

• waitq — the vdo_wait_queue from which to get the first waiter. It’s the queue in question, and yes, you’re pulling its first waiter out of it 🫶

🌈 RETURN 🌈

The first (oldest) waiter in the waitq, or NULL if the waitq is empty. That’s the whole return vibe — no extra lore, no cap 😭

🦋 SEE ALSO 🦋

• Kernel file ./drivers/md/dm-vdo/wait-queue.c
• vdo_waitq_enqueue_waiter(9)
• vdo_waitq_transfer_all_waiters(9)
• vdo_waitq_notify_all_waiters(9)
• vdo_waitq_dequeue_matching_waiters(9)
• vdo_waitq_dequeue_waiter(9)
• vdo_waitq_notify_next_waiter(9)

Source/version tea: ./drivers/md/dm-vdo, dated October 2026, for vdo_waitq_get_first_waiter(9). Byeee, go get that first waiter 💖✨