proc_doulon...ffies_minmax(9)

💅 proc_doulongvec_ms_jiffies_minmax

okay bestie, first things first — this is a page from the Kernel API Manual 📖, and the star of the show is a function with a name so long it needs its own zip code: proc_doulongvec_ms_jiffies_minmax. yes that's one word. yes she ate. 💅✨

🌸 NAME 🌸

proc_doulongvec_ms_jiffies_minmax — read a vector of millisecond values with min/max values 🎀

🦋 SYNOPSIS 🦋

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

✨ ARGUMENTS ✨

• table — the sysctl table, aka where all the config lives 👑
• dir — TRUE if this is a write to the sysctl file 📝
• buffer — the user buffer, the actual data hangout spot 🫶
• lenp — the size of the user buffer 📏
• ppos — file position 📍

💖 DESCRIPTION 💖

Okay so here's the vibe: it reads/writes up to table->maxlen/sizeof(unsigned long) unsigned long values from/to the user buffer, and the whole thing gets treated as an ASCII string. no cap. 🔥

The values are treated as milliseconds, and converted to jiffies when they are stored. yes, jiffies — the kernel's own little time unit, iconic behavior honestly ⏱️✨

This routine will ensure the values are within the range specified by table->extra1 (min) and table->extra2 (max). so like, it's giving bodyguard energy — nothing out of bounds gets through 🛡️💅

Returns 0 on success. slay. ✅

fr fr, remember the values are milliseconds on the way in/out but get stored as jiffies — the conversion is the whole point, don't forget it 🧚‍♀️

🌈 SEE ALSO 🌈

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

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and that's the whole page bestie, you understood it perfectly, i'm so proud of you 🥹💜

this little love letter comes to you from ./kernel/time — datestamped October 2026, and the manual itself is proc_doulon...ffies_minmax(9) (yes the title is still committing crimes with that truncation 😭). mwah, go read the kernel source, ily, bye 🎀💖🌟