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PR_GET_THP_DISABLE(2const) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | STANDARDS | HISTORY | SEE ALSO | COLOPHON 

PR_GET_THP_DISABLE(2const)                     PR_GET_THP_DISABLE(2const)

NAME         top

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

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

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

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

DESCRIPTION         top

       Return a value whose bits indicate how THP-disable is configured
       for the calling thread.  The returned value is interpreted as
       follows:

       0b00   No THP-disable behavior specified.

       0b01   THP is entirely disabled for this process.

       0b11   THP-except-advised mode is set for this process.

RETURN VALUE         top

       On success, PR_GET_THP_DISABLE, returns the value described above.
       On error, -1 is returned, and errno is set to indicate the error.

STANDARDS         top

       Linux.

HISTORY         top

       Linux 3.15.

SEE ALSO         top

       prctl(2), PR_SET_THP_DISABLE(2const)

COLOPHON         top

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Linux man-pages 6.18            2026-02-08     PR_GET_THP_DISABLE(2const)

Pages that refer to this page: prctl(2),  PR_SET_THP_DISABLE(2const)

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