proc_dohung...detect_count(9)

💅 proc_dohung...detect_count(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes that's the manual name, we're fancy now ✨ — and today's main character is literally this one little proc handler. she's small, she's specific, and she's about to make so much sense to you. let's go 🫶

---

✨ NAME ✨

proc_dohung_task_detect_count — the proc handler for hung_task_detect_count, no cap 🎀

---

🦋 SYNOPSIS 🦋

int proc_dohung_task_detect_count (const struct ctl_table *table , int
dir , void *buffer , size_t *lenp , loff_t *ppos );

that's the whole signature, character for character, don't come for me 💅

---

🌸 ARGUMENTS 🌸

• table — pointer to the struct ctl_table definition for this proc entry. it's the receipts for this entry fr fr.
• dir — a flag indicating the operation. which operation? read the vibe check, that's your answer 😌
• buffer — user space buffer for data transfer. the actual goods travelling through 💌
• lenp — pointer to the length of the data being transferred. how much data, exactly? she's telling you.
• ppos — pointer to the current file offset. where in the file are we, bestie 🗺️

---

🌈 DESCRIPTION 🌈

okay this is the good part 👑

this handler is used for reading the current hung task detection count — iconic, love that for her — and for resetting it to zero when a write operation is performed using a zero value only.

read this twice bestie: the reset only happens on a write with a zero value. zero value only. that's not a suggestion, that's the whole rule 💀

---

⭐ RETURN ⭐

0 on success, or a negative error code on failure. simple, clean, slay 💖

---

🔥 SEE ALSO 🔥

• Kernel file ./kernel/hung_task.c
• hung_task_info(9)

iykyk 👑

---

and that's the whole page!! this one came from the source/version ./kernel, dated October 2026 — so when you cite her, cite her correctly 😤 mwah, go read hung_task_info(9) next, ily, bye 🧚💜