NAME

       PR_GET_IO_FLUSHER - get the IO_FLUSHER state

LIBRARY

       Standard C library (libc, -lc)

SYNOPSIS

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

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

DESCRIPTION

       Return  the  IO_FLUSHER state of the caller.  A value of 1 indicates that the caller is in
       the IO_FLUSHER state; 0 indicates that the caller is not in the IO_FLUSHER state.

       The calling process must have the CAP_SYS_RESOURCE capability.

RETURN VALUE

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

STANDARDS

       Linux.

HISTORY

       Linux 5.6.

SEE ALSO

       prctl(2), PR_SET_IO_FLUSHER(2const)