proc_dointve...erhz_jiffies(9)

💖 proc_dointve...erhz_jiffies(9) 💖

okay so this page is literally from the Kernel API Manual — yes that Kernel API Manual, the one our fave kernel devs keep in ./kernel/time — and it's about one very specific little sysctl helper. buckle up bestie, it's giving niche but iconic 🎀

---

✨ NAME ✨

proc_dointvec_userhz_jiffies — read a vector of integers as 1/USER_HZ seconds 💫

🌸 SYNOPSIS 🌸

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

like, five args, no cap. let's go through them one by one 🫶

💅 ARGUMENTS 💅

• table — the sysctl table, the main character of this whole operation 👑
• dir — TRUE if this is a write to the sysctl file. so it's basically the "are we writing or reading" vibe check 🌈
• buffer — the user buffer, where the actual data lives 💜
• lenp — the size of the user buffer. yes, a pointer to the size, we're fancy like that ✨
• ppos — pointer to the file position 🎯

🦋 DESCRIPTION 🦋

okay so here's the tea ☕ — this thing reads/writes up to table->maxlen/sizeof(unsigned int) integer values from/to the user buffer, treated as an ASCII string. yes, ASCII, we're being textual about it 💀

and the values it reads? they're assumed to be in 1/USER_HZ seconds, and then they get converted into jiffies. so it's literally just a units conversion moment, slay 🧚

Returns 0 on success. that's it, that's the whole mood ✨

⭐ SEE ALSO ⭐

• Kernel file ./kernel/time/jiffies.c
• proc_dointvec_jiffies(9)
• proc_dointvec_ms_jiffies(9)
• proc_doulongvec_ms_jiffies_minmax(9)

---

ngl bestie, if you're messing with jiffies and HZ conversions, go read those siblings too. they're the supporting cast and they ate 💅

---

and that's the whole page, periodt 🎀 huge thanks to the kernel crew over in ./kernel/time — this edition is dated October 2026, and the source lives right there in ./kernel/time alongside proc_dointve...erhz_jiffies(9). go touch some grass (or a kernel tree) ily bye 🦋💖🌷