plucky (2) PR_SET_THP_DISABLE.2const.gz

NAME

       PR_SET_THP_DISABLE - set the state of the "THP disable" flag for the calling thread

LIBRARY

       Standard C library (libc, -lc)

SYNOPSIS

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

       int prctl(PR_SET_THP_DISABLE, long flag, 0L, 0L, 0L);

DESCRIPTION

       Set the state of the "THP disable" flag for the calling thread.  If flag has a nonzero value, the flag is
       set, otherwise it is cleared.

       Setting this flag provides a method for disabling transparent huge pages for jobs where the  code  cannot
       be  modified, and using a malloc hook with madvise(2) is not an option (i.e., statically allocated data).
       The setting of the "THP disable" flag is inherited by a child created via fork(2) and is preserved across
       execve(2).

RETURN VALUE

       On success, 0 is returned.  On error, -1 is returned, and errno is set to indicate the error.

STANDARDS

       Linux.

HISTORY

       Linux 3.15.

SEE ALSO

       prctl(2), PR_GET_THP_DISABLE(2const)