glibc/sysdeps/unix/sysv/linux/readahead.c

/* Provide kernel hint to read ahead.
   Copyright (C) 2002-2019 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <fcntl.h>
#include <errno.h>
#include <sysdep.h>

ssize_t
__readahead (int fd, off64_t offset, size_t count)
{
  return INLINE_SYSCALL_CALL (readahead, fd,
			      __ALIGNMENT_ARG SYSCALL_LL64 (offset),
			      count);
}
weak_alias (__readahead, readahead)