do_smart_wakeup_zero(9)

🌸 NAME 🌸

okay bestie, welcome to do_smart_wakeup_zero(9) from the Kernel API Manual. This function is do_smart_wakeup_zero, and the official vibe is: wakeup all wait for zero tasks. no cap, that’s the name. 💅

✨ SYNOPSIS ✨

int do_smart_wakeup_zero (struct sem_array *sma , struct sembuf *sops ,
       int nsops , struct wake_q_head *wake_q );

🎀 ARGUMENTS 🎀

• sma — semaphore array. 🫶
• sops — operations that were performed. ✨
• nsops — number of operations. 🔢
• wake_q — lockless wake-queue head. 👑

🦋 DESCRIPTION 🦋

So the function checks all required queue for wait-for-zero operations, based on the actual changes that were performed on the semaphore array. It returns 1 if at least one operation was completed successfully. That’s it, that’s the tea — iconic behavior only. 😌

🌈 SEE ALSO 🌈

Kernel file ./ipc/sem.c is where the lore lives, and the related refs are:

• unmerge_queues(9)
• merge_queues(9)
• newary(9)
• wake_const_ops(9)
• update_queue(9)
• set_semotime(9)
• do_smart_update(9)
• find_alloc_undo(9)

Go read them if you want the full friend-group crossover, iykyk. 👑

okay love you, bye! 💖 this page’s source/version is ./ipc, dated October 2026, and it’s literally do_smart_wakeup_zero(9) — periodt. 🎀