PR_GET_THP_DISABLE(2const)

💖 PR_GET_THP_DISABLE(2const) — a.k.a. the manual page you're reading, bestie 💖

okay so this is PR_GET_THP_DISABLE(2const) and it's literally the girl whose whole job is peeking at your thread's "THP disable" flags. she doesn't set anything, she doesn't change anything, she just looks and reports back. a true observer. main character energy but make it read-only. 🦋

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✨ NAME ✨

PR_GET_THP_DISABLE — get the state of the "THP disable" flags for the calling thread 💅

🎀 LIBRARY 🎀

Standard C library (libc, -lc) — yeah, the usual. she lives there.

🌸 SYNOPSIS 🌸

#include <linux/prctl.h>  /* Definition of PR_* constants */
#include <sys/prctl.h>

int prctl(PR_GET_THP_DISABLE, 0L, 0L, 0L, 0L);

not me calling prctl() with that many 0Ls — girl, they're all zeros, everyone just follow along, it's fine. 🫶

💀 DESCRIPTION 💀

She returns a value whose bits tell you how THP-disable is configured for the calling thread. That's the vibe check. Then you interpret the returned bits like this:

• 0b00 — no THP-disable behavior specified. literally nothing's been said. untouched. pristine. ✨
• 0b01 — THP is entirely disabled for this process. all of it. gone. blocked. 🙈
• 0b11 — THP-except-advised mode is set for this process. so it's giving "only where advised" energy. iykyk. 🌈

heads up: this is bit-y business, so read the returned value as bits, not as a regular "oh it's 1 or 3" situation. the description above is the whole truth and nothing but. 💜

⭐ RETURN VALUE ⭐

On success, PR_GET_THP_DISABLE returns the value described above (the bit-thing from the DESCRIPTION, you got this). 👑

On error, -1 is returned, and errno is set to indicate the error. classic. love that for us. 😭

🔥 STANDARDS 🔥

Linux. that's it. that's the section. periodt. 💅

🧚 HISTORY 🧚

Linux 3.15. an icon, an era, a moment. 🎀

🌟 SEE ALSO 🌟

• prctl(2)
• PR_SET_THP_DISABLE(2const) — the setter to this getter, her other half fr fr 🫶

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and that's the page, bestie!! go forth and read your flags responsibly 💖✨ no cap, this was Linux man-pages 6.20, dated 2026-02-08, and yes she slayed every single line of it. bye bye 👑🌈🌸